The type of wood and to make process technology

Wood is modern decoration industry is a kind of energy saving and the trend of the decoration materials, the market of the wood basically has two kinds big, one kind is a natural wood, one kind is a science and technology veneer, both of the production process flow is not the same, small poplar wood in the relevant person in charge of the need for the illuminative consumer explain the kinds of wood and friends production process.
Natural wood, also is through the rotary cutting planer or cut wood get veneer, natural wood is based on natural rare wood simple to make the cut, plane, no other big processing, so its surface texture quite natural beauty. Another kind of wood veneer is science and technology, it can be said to be natural wood upgrade to version, it is usually the dyeing mimosa will bleaching, then to group after get cut, plane billet veneer,Wood Plastic Composite,wood plastic composite.

Science and technology is used as the role of wood veneer, its surface spelling a flower art is also common things, wood skin surface with its specific natural mechanism effect, but all kinds of science and technology have their own characteristics of wood, comparatively thick wood science and technology is not appropriate for the spelling a flower, with acidic wood surface spraying PU paint if will foam, although technology wood is natural wood, the upgrade to version, because its material and not like natural wood skin so entirely from natural wood, so its own some defects is unavoidable,Wood Plastic product.

Whether natural or wood veneer of science and technology, in the process of processing without a fixed pattern, some wood also want to specific glue, anyhow is some glue stick it begins, stick the method to have cold, hot pressing, but are not necessarily machines are used to, a lot of manual manufacturer or in irregular modelling product under the condition of the manual exercises can use, but also now have high technology vacuum stick, not only to pay attention when pressure veneer pressure go a problem but also pay attention to the quality problem, often have a bubble in wood is now,Composite Wood Outdoor Flooring.

Although the market now mu wen paper used more and more, but people on the pursuit of nature is little not the existence of natural wood still, so natural wood market still considerable.

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Choose the color difference of composite wood floor to the bad

Composite wood floor is lumber classics drying, the area that forms after treatment decorates material. Because the customer when buying a floor board mostly can't figured out their advantages and disadvantages, plus in construction method wrong, thus appeared a lot of composite wood floor change shape, black and the quality problems, unnecessary financial losses.How to choose and buy composite wood floor?

Composite wood floor surface processing according to the depth of the divided into two classes. One kind is lacquer board, namely the surface of the composite wood floor has painted the paint, can be directly mounted after use; Another is a grain board, namely the surface of the composite wood floor no drench lacquer processing, after the laying must pass the burnish, brush paint to use.Of composite wood floor type and price position points as follows several: YunXiang hua limu, teak wood, and most expensive, cherry wood, ju, maple is the second smallest, and miscellaneous wood of northeast China ash, oak and southeast Asia keeping aLaminate Flooring.

Wood Plastic Composite Floor has the AA level, class A, B level 3 grade. The AA level the highest quality, the off color at least. Inspection composite wood floor board, visual no dead section, bug, oil eye, tree quality defects such as heart, living quarter should be less than three, the depth of the crack length and must not be more than 1/5 of the thickness and length, twill slope is less than 10%, no corrosion point, graphics grain straighten out is.

Laminate Flooringalso should further testing its processing quality: surface processing smooth, without warping deformation, the mouth tenon processing unity, integrity, custom, no flash, the damage phenomenon for qualified products. Among them, to special test the moisture content of lumber, the floor with high moisture content, after installation inevitable deformation, the northern region floor moisture content should be less than 10%, wuhan area should be at about 12%, or unfavorable use.

In the choose and buy composite wood floor, should according to their actual situations. First should comply with the design requirements of in style to determine the selected of composite wood floor wood, such as color of the deep and shallow, mu wen's spares and dense; Then according to their economic ability, is in the price positioning. Sure the above requirements, should be carefully to see of floor of wood of standard and standard slot joining together square rule: two pieces of composite wood floor is spell slot sliding, check whether sliding fluent, board and board between junction whether level offHow to lay Laminate flooringing.

In the choice of composite wood floor board, never to stand or fall off color theory. composite wood floor is natural material, even if it is a tree of wood, and it is to the sun and the shaded aspect have off color. Color difference is the natural material inevitable factors, it does not affect the quality of the floor, and it may not affect beautiful.

In addition, when the choose and buy also don't with composite wood floor of the length of the size advantage. Long slabs demanding and select material loss is big, so the price is high, in the construction process, a bit less easily deformation. And the small plate material utilization rate is high, the price is cheap, and difficult deformation, economy applicable.

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Novice how to distinguish mahogany wood

Mahogany furnitureisnowmore and moretheconcernofcollectors,butjustinto the mahoganyindustry,not only tobetrying hard to learntheknowledge of the industry,also knownintheknowledgeofthechoiceofmahoganyfurniturefor woodin the heart.Kindof negative phenomenaintheindustry: First, thereal ones,the second isshoddy.Withfive ofthe eight categories ofmahoganywoodcalledmahogany furnitureon the market close, andwoodproductsalsohave similarareasofmahoganyinthenational standards, to distinguish betweenthemneed toseethefoundation.

TheTerminaliawoodenHunchongsandalwood

Thescientific name issimilar toCôte d'IvoireTerminaliawood, performance and sandalwood,partial colorlight yellowstripesmore, the materialbrittlethanthered sandalwood.

Pear,Brazil,India,saffronpears,Cambodiapearand rosewood

These threetimberiseasyHunchongrosewoodtimberonthemarket, in fact,Asian pear,anddoes not belong tothemahogany.Therosewoodis themarket isposingmore ofa timberbelonging tothePterocarpus, and can replacethewoodmore.

Redironofpigeon peaandredwood

Redironof pigeon peamarketis not standardizedname ofred sandalwood,African Rosewood.Someconsumersoftenmistaketheredironof pigeon peaasared wood furniture,buy a home,afterexpert examination, it was foundareredironof pigeon pea. Thedifference isbetweentheredironof pigeon peatextureismore detailed,andbrown eyesdeck floor.

MyanmarEbony,Jiali ManTanandstriped ebony

Oftenwith these twotimbertoHunchongthestriped ebony,because they arewith black stripes.Striped ebonyblackstripesandwhitestripes,andbytwowood iswhitepatternHow to lay Laminate flooringing.

Africanwooden wingsposingMyanmarwooden wings

OftenwithAfricanwooden wingstoimpersonatethewooden wingsofMyanmar, Burmesewooden wingscost aboutAfricanwooden wingsabout twicethepricegapis relatively large.Identifytwodifferent materials, onelook atthefinish,thewooden wingsof Myanmarissmooth and delicate,than theroughwooden wingsinAfrica;thanweight, Myanmarwooden wingschicken wingswooddensityinAfrica;is to look atthestyleof furniture,wooden wingsinMyanmarboardcan only doachair, a fewclassessuch as small piecesoffurniture,Africanchicken wingswoodraw materialisfairly thickin diameter,can be biggercabinet,Rohanbeds and otherlarge pieces of furniturelaminate flooring.

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The Important Turn Around of Wood Plastic Composite

The perspectives of some plastics industries have changed dramatically in the last decade. Interest has been fuelled by the success of several WPC products, greater awareness & understanding of wood, developments from equipment manufacturers & additive suppliers & opportunities to enter new markets, particularly in the large volume building applications sector. Forest product industries are changing their perspectives as well. They view WPC's as a way to increase the durability of wood with little maintenance on the consumer's part (one of the greatest selling points). Some forest products companies in the USA are beginning to manufacture WPC. These ventures into WPC's are being driven by customer demand & opportunities based on experience in building products.Milestones In The Commercialization Of WPC's In the USA, WPC's have been produce for several decades & even much earlier in Europe. However, major growth did not occur until fairly recently. Some of the major milestones are described in this section.

In 1983, American Woodstock, now part of Lear Corporation in Sheboygan, Wisconsin, began producing automotive interior substrates using Italian extrusion technology. Polypropylene extruded with approximately 50 % wood flour was extruded into a flat sheet that was then thermoformed into various shapes for automotive interior paneling. This was one of the first major applications of WPC technology in the USComposite wood decking.

In the year 1991,Advanced Environmental Recycling Technologies (AERT, Junction Texas) and a division of Mobil Chemical Company that later became Trex (Winchester, Virginia) began producing solid WPC's consisting of 50% wood fiber in polyethylene. These composites were sold as deck boards, landscape timbers, picnic tables & industrial flooring. Similar composites were milled into window & door component profiles. Today, the decking market is the largest & fastest growing WPC marketWood Plastic Composite Floor.

In 1993, Andersen Corporation (Bayport, Minnesota) began producing wood fiber – reinforced PVC subsills for French doors. Further development led to a wood – PVC composite window line. These products allowed Andersen to recycle wastes from both wood & plastics processing operations.

In the early 1990's Strandex Corporation (Madison, Wisconsin) patented technology for extruding high wood fiber content composites directly to final shape without the need for milling or further forming. Strandex continues to license its evolving technology.

The Current Status on Technology Of WPC's

Although the WPC industry is still only a fraction of a percent of the total wood products industry, it has made significant inroads in certain markets. According to estimates, the WPC market was 320,000 MT in 2001 and the volume is expected to more than double by 2005Composite wood plastic.

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Thermoplastics Materials & Wood Filler

Because of the limited thermal stability of wood only thermoplastics that melt below 200 Deg C are commonly used in WPCs. Currently, most WPCs are made with PE, both virgin & recycled, for use in exterior building components. However, WPCs made with wood –PP are typically used in automotive & consumer products and very recently, these materials have been investigated for use in building profiles. Wood filled PVC composites typically used in window manufacture are now being used in decking as well. Polystyrene & ABS are also being used. The plastic is often selected based on its inherent properties, product need, availability, cost and the manufacturer's familiarity with the polymer.The wood used in WPCs is most often in particulate form (wood flour) or very short fibers, rather than longer individual fibers. Products typically contain 50 % wood, although some composites contain very little woodComposite wood decking.

 

Others contain as high as 70 %. The relatively high bulk density & free flowing nature of wood flour compared with wood fibers or other longer natural fibers, as well as low cost, and availability, is attractive to WPC manufacturers and users. Common species used include pine, maple, & oak. Typical particle sizes are 10 to 80 meshWood Plastic Composite Floor.

Since the early 1990's, the wood – plastic composite industry has grown significantly. Today, wood & other natural fibers account for 7% of the total 2.5 billion kgs filler & reinforcement used. This represents a 135 % increase in natural fiber demand since 1990 with most of the growth in the past five years. The price of wood is dependant on the location. Low cost wood in the USA can be attributed to the considerable amount of wood residues (60 Million metric tones) generated just from the primary timber processors. The growth of wood flour & fiber use in thermoplastics has outpaced that of other natural fibers. Natural fibers are roughly twice as expensive as wood fiber, but are still well below most otherComposite wood plastic.

Because of the limited thermal stability of wood only thermoplastics that melt below 200 Deg C are commonly used in WPCs. Currently, most WPCs are made with PE, both virgin &amp; recycled, for use in exterior building components. However, WPCs made with wood –PP are typically used in automotive &amp; consumer products and very recently, these materials have been investigated for use in building profiles. Wood filled PVC composites typically used in window manufacture are now being used in decking as well. Polystyrene &amp; ABS are also being used. The plastic is often selected based on its inherent properties, product need, availability, cost and the manufacturer's familiarity with the polymer.The wood used in WPCs is most often in particulate form (wood flour) or very short fibers, rather than longer individual fibers. Products typically contain 50 % wood, although some composites contain very little wood <a href="http://www.woodcompositeplastic.com/WPC_floor/Composite_wood_decking.html">Composite wood decking</a>.

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Others contain as high as 70 %. The relatively high bulk density &amp; free flowing nature of wood flour compared with wood fibers or other longer natural fibers, as well as low cost, and availability, is attractive to WPC manufacturers and users. Common species used include pine, maple, &amp; oak. Typical particle sizes are 10 to 80 mesh <a href="http://www.woodplasticproduct.com/allfloor.html">Wood Plastic Composite Floor</a>.

Since the early 1990's, the wood – plastic composite industry has grown significantly. Today, wood &amp; other natural fibers account for 7% of the total 2.5 billion kgs filler &amp; reinforcement used. This represents a 135 % increase in natural fiber demand since 1990 with most of the growth in the past five years. The price of wood is dependant on the location. Low cost wood in the USA can be attributed to the considerable amount of wood residues (60 Million metric tones) generated just from the primary timber processors. The growth of wood flour &amp; fiber use in thermoplastics has outpaced that of other natural fibers. Natural fibers are roughly twice as expensive as wood fiber, but are still well below most other <a href="http://www.woodcompositeplastic.com/WPC_news/Composite_wood_plastic_report.html">Composite wood plastic</a>.

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Wood Plastic Composites From A Historical Perspective

Wood – thermoset composites date to the early 1900's. An earlier commercial composite material marketed under the trade name " Bakelite", was made of phenol – formaldehyde & wood flour. Its first commercial use was reportedly as a gearshift knob for Rolls Royce in 1916.This paper is focused on wood – thermoplastics, which in today's parlance are simply referred to as Composite wood plastic.The birth of the Composite wood plastic industry involved the interfacing of two industries that have historically known little about each other & have different knowledge, expertise & perspectives. The plastics industry has knowledge of plastics processing & the forest products industry has more experience & resources in the building products market. Not surprisingly, some of the earliest companies to produce Composite wood plastic's were window manufacturers who had experience with both wood & plastics.The plastics industry has traditionally used talc, calcium carbonate, mica, and glass fiber to modify the performance of plastics. About 2.5 billion Kgs of fillers & reinforcements are used annually. The industry was reluctant to use wood or other natural fibers such as kenaf, flax & hemp, though these fibers are from a renewable resource, are less expensive, lighter & less abrasive on processing equipments than conventional fillers. Most plastic processors ignored wood fiber because of its low bulk density & specific gravity, low thermal stability & tendency to absorb moisture.The majority of thermoplastics have a bulk density of approximately 0.5 gms/cc. The plastics processor had to face the problem of how to consistently meter & force low bulk density wood flour into small openings typical of plastic processing equipments. In addition, the processing temperature for even the low softening plastics is often too high for incorporation of wood filler without thermal degradation. The high moisture content of wood & other natural fibers is also often problematic to the plastic industry which considers 1 to 2 % moisture content high. Even plastics processors having vented equipments capable of removing moisture during processing were averse to removing 5 to 7 % moisture from wood fiber. Resin dryers, which are fitted on plastic processing equipments, are not sufficient for wood filler or particles. Drying of wood or other natural fibbers poses a fire hazard. Plastics processors who tried to use wood or other natural fibers often lacked the knowledge of cellulosic materials & their failed attempts made the industry generally skeptical of combining wood & plastic Composite wood decking.For the wood products industry, thermoplastics were a foreign world, although they attempted products such as Vinyl sidings. Competing in different markets, forest & plastics industries had few material & equipment suppliers in common& they processed materials very differently & on entirely different scales Wood Plastic Composite Floor.

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Polyolefin elastomer (POE) characteristics of plastics and application scope is introduced

POE is by Michael essien ene and polyolefin resin composition, continuous phase two of the separation of the dispersed phase present polymer mixing content, through the scanning electron microscope or the image shows that are microscope, can form rubber for continuous phase and resin as the dispersed phase or rubber for the dispersed phase, resin for continuous phase, or both of the present continuous phase interpenetrating networks structure. Along with the change of the morphology, blends performance also change. If the rubber for continuous phase, the performance of the present approximation vulcanizates; Resin for continuous phase, the performance to plastic.

Processing and cooperates: POE need not be mixed refine and curing. Can use usually processing thermoplastic processing molding equipment. Molding process temperature and processing pressure should be generally was slightly higher, can be in high processing speed processing. Can the injection molding and extrusion molding, also can use rolling machine into the sheet or film, and can blow molding, using thermal molding manufacture complex shape of products. But according to need to add various pigment made for different color. Some manufacturers in products requests, provide such as oil resistance, flame retardant type, type and stable electric type electrostatic coating of the special grade with material. Sometimes for improving processing performance and the use of certain products performance or reduce the cost, also can add some chelating agent, such as antioxidants, softener and filling agent, colorants, etc. Leftover material and waste recycling process repeated use. But by no more than 30% of general proportion, so no influence on performance of POE on blend system influence

POE is by metallocene catalyst ethylene and propylene essien realize in-situ polymerization of thermoplastic elastomer, its characteristic is: (1) the soft chain with Michael essien and crystalline structure of curly ethylene chain as a physical/LianDian, make it has both excellent toughness and good workability. (2) the molecular structure POE not unsaturated double bond of the, has excellent resistance to aging performance. (3) POE narrow molecular weight distribution, and has good liquidity, and good polyolefin compatibility. (4) the good liquidity can improve the packing of the dispersion of effect, but also can improve the products of the welding mark strength wood plastic composite decking in China.

Along with the increase of the content of POE, system the impact strength and elongation at break has been greatly improved. Visible, POE PP have good for toughening role, and PP, active calcium carbonate has good compatibility. This is because POE's narrow molecular weight distribution, the molecular structure side octyl longer than side ethyl, at the molecular structure can be formed in attempt to play a connection between in the constituent, buffer role, make the system at impact when the scattered, buffer impact can effect, reduce silver lines for the opportunity to crack into force development, so as to improve the impact strength of the system. When the system has been tension, because these attempt by the formation of the network of the structure can happen large deformation, so, the system of elongation of the significant increase, and when the content of POE increases, the system of the tensile strength, bending strength and bending modulus are declined, this is the decision by POE itself performance, so POE content should be controlled in 20% below wood plastic composite decking manufacturers.

POE's content and the relationship between the melting index, join POE, system of molten index increased. POE itself liquidity is better, it to join, but also improve the whole system of liquidity, when POE content more than 15 a later, system of molten index basically no change, if want to continue to improve liquidity in the system, it can't completely dependent on POE.

Basic features: (1) with the general POE thermoplastic elastomer physical properties, such as formability, waste reuse and vulcanized rubber performance, etc. (2) the price is low, and the relative density is small, so the volume low price. (3) heat resistance, cold resistance is excellent, use a wide range. (4) weathering resistance, ageing resistance is good. (5) oil resistance, resistance to permanent deformation and compression abrasion resistance and not so good. Application: mainly used for toughening modification of PP, PE and PA in the automobile industry has made bumper, the fender, the steering wheel, plate and so on. Cable industry heat resistance and environmental resistant requirements high insulating layer and sheath. Also used for industrial use products such as rubber, conveyer belt, tape and moulded products. Medical devices and home appliances, sports supplies, toys, and packaging film, etc wood plastic composite decking supplier.

 

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The future China foreign trade pattern or accelerated lumber market change

Recently, China wood because resources import dependence and the formation of one-way price inflation trend more and more serious. The future, China timber trade pattern or accelerated transformation.Wood from China electronic trading market research center learned that China timber industry chain involving logs, sawn wood, wood, leather, bamboo and other raw material supply, man-made board, wood, furniture, manufacturing and construction and installation and decoration industry segments. From the raw material procurement to global market of China industrial export timber live in gazillion enterprise, employees up to. As China timber industry scale, professional development, wood enterprise already from the original big changes for commercial function segment and segment of the development. International trade area by wood to expanding trading nations, the change of the policy and the price of lumber fluctuations, the traditional Chinese timber circulation patterns are quietly having huge changes wood plastic lumber products.Climate conference in durban, China to strengthen the global emissions obligation to promise, the Chinese wood enterprise on one hand will be faced with domestic and foreign market fast change, on the other hand will face to strengthen environmental protection policy and international market trading nations environmental barriers of research and coping, both will urge the timber imports have significantly change the trend.China timber imports the pattern of the source in quietly changing. New Zealand lumber import a lot of make it become the country's second largest importer wood, Russia still ranked first timber imports, but this year the drop of 20% or more, the main reason is the New Zealand wood and Russia wood results from the game market, China's foreign trade pattern will accelerate the transition of wood,wood plastic composite material.Industry insiders suggest that China timber industry development should actively expand import way wood, actively trying to overseas material forest vegerable and base construction; Reduce imported logs, sawn wood increased import; Find and promote new species use value. At the same time, the terminal to intensify the manufacturing enterprise traditional wood and composite materials applied science and technology research and development, the traditional wood can also meet the changing market demand. Only through adjusting enterprise development strategy and the structure of products, of wood resources to recycling and high added value direction, to keep the Chinese wood industry's international competitiveness Wood Plastic Composite Market. more...

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