CN101955614B - Novel wood plastic composite decorative building material and manufacturing method thereof - Google Patents
Novel wood plastic composite decorative building material and manufacturing method thereof Download PDFInfo
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- CN101955614B CN101955614B CN2010101115894A CN201010111589A CN101955614B CN 101955614 B CN101955614 B CN 101955614B CN 2010101115894 A CN2010101115894 A CN 2010101115894A CN 201010111589 A CN201010111589 A CN 201010111589A CN 101955614 B CN101955614 B CN 101955614B
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Abstract
The invention relates to a novel wood plastic composite decorative building material and a manufacturing method thereof. The novel wood plastic composite decorative building material comprises the following components in part by weight: 100 parts of polyvinyl chloride (PVC) resin powder, 30 parts of mixture formed by mixing one or more of wood powder, bamboo powder, rice bran powder and crop straw powder in an arbitrary ratio, 30 parts of calcium powder, 5 to 10 parts of chlorinated polyethylene or MBS resin, 2 to 6 parts of rear earth compound stabilizer, 0.5 to 3 parts of polyethylene wax or oxidized polyethlene wax, 0.5 to 3 parts of stearic acid, 0.5 to 2.0 parts of a composite foaming agent with the decomposition temperature thereof within 110 DEG-190 DEG, 5 to 10 parts of acrylic ester-like foaming promoter, 0.5 to 1 part of 4-(b-(3, 5-tert-butyl -4-hydroxyphenyl ) propionate ) pentaerythritol ester or b-(3, 5-tert-butyl -4-hydroxyphenyl ) propionic octadecyl alcohol ester, 0.5 to 1 part of titanic acid ester or silane coupling agent, 1 to3 parts of toner and 0.5 to 1 part of weather resistant agent. PVC plastic is modified by adding the auxiliaries, and the influence of unstable components (such as a vinyl chloride monomer, hydrogen chloride gas and the like) in the PVC on the performance of the building material is eliminated, so that the building material has better performance and environmental protection characteristics on the basis of keeping the original performance.
Description
Technical field
The present invention relates to a kind of wood and mould composite decoration building materials and method of manufacture thereof.
Background technology
Wood plastic composite is to utilize wood powder, bamboo powder, chaff powder or agricultural crop straw powder and PVC, PE resin to be main raw material, through mixing and forming process and a kind of advanced composite material that makes.It has following characteristics: (1) can be as the timber installation and processing, but mopping; (2) durable, the life-span is long, and similar wood appearance is arranged, and hardness is high; (3) have excellent physical and mechanical properties, better than wood dimensional stability, can not produce crack and warpage, the joint trace of no timber, twill add tinting material or composite skins and can be made into various products lucuriant in design; (4) moulding easily just can be carried out forming process with general device of plastic processing; (5) be not afraid of insect bite, ageing-resistant, corrosion-resistant, water-absorbent is little, can hygroscopic deformation; (6) reusable and recycling etc.
It is wide that wooden industrial prospect is moulded by China, and China is the poor country of a timber resources, and forest coverage is merely 12.7%, only is equivalent to 61.3% of the average forest coverage in the world.Forest reserves is 10m per capita
2, have only the world per capita accumulation 12.5%.The not enough 0.05m of lumber consumption level per capita
3/ year.For this reason, annual about 1,000 ten thousand m of import that need of China
3Timber.Because long-term irrational development and use, China's area of woods descends just with surprising rapidity, and available timber resources reduces day by day, and situation is very severe.In this case, how fully effectively to utilize limited timber resources, the protection environment is served society, becomes the problem that presses for solution.The second stage employ that is developed as timber and plastics of WPC (wood-plastic products) has been opened up new approach.Mould the substitute of Wood products as timber simultaneously, Application Areas is only infiltrated 4% of following potential market at present, and year usage quantity is about about 5% of view application.Estimate to substitute the application of timber with 50% in following 10 years at aspects such as outdoor view buildings.
The PVC base wood-plastic composite material can be used for following aspect: various profiled materials such as architectural movable dwellings, wall, floor, banister; Foundry pattern in the industry, machinery cover, water pump shell, electrical accessorie; Finishing material such as the floor of home office, shingle nail, top ceiling; Various transporting boxes and furniture material etc., Application Areas are very extensively.
Therefore; The production and the application of research and development PVC base wood-plastic composite material; Not only will be for the development of the national economy increase a kind of inexpensive novel material that has wide application prospects, and can and improve the wood utilization rate and open up a new way for the harm that reduces the waste or used plastics goods; Conversely, for producing the wood plastic composite source that furnishes ample material, its significance is self-evident again for a large amount of wood chips and waste or used plastics.
The staple of wood powder is a lignocellulose, and a large amount of hydroxy functional groups is contained on the surface, makes its face reveal very strong chemical polarity.Because wood powder is a hard particles, cause wood plastic composite in melt temperature current downflow difficulty when filling in a large number simultaneously, processing characteristics obviously descends.And many bibliographical informations are thought; In the research of carrying out the PVC base wood-plastic composite material; The greatest problem that needs to solve is how to make between hydrophilic polarity wood powder surface and the PVC interface to have good consistency; Make between upper layer and the PVC molecule of wood powder to reach good fusion or produce chemically crosslinked, thereby make the PVC base wood-plastic composite material have good physical and mechanical properties.
At present; The producer of domestic production PVC base wood-plastic composite material and bibliographical information almost all adopt the method for coupling agent treatment wood powder; As adopt titanic acid ester, aluminic acid ester, silane coupling agent; To improve combining of wood powder and polyvinyl chloride resin, ignored in the composite material forming course of processing wood powder and problem such as in PVC, disperseed.There is Wood flour filled amount little (being generally less than 50 mass parts) in this method, and wood powder disperses bad in PVC, melt flow difficulty, poor processability, shortcoming such as products appearance is coarse.
Summary of the invention
Technical problem to be solved by this invention provides good, the similar wood grain of a kind of appearance, density is little, in light weight, intensity is high, good weatherability, yielding, not cheap wood are moulded composite decoration building materials and method of manufacture thereof.
The present invention solves the problems of the technologies described above the technical scheme that is adopted: a kind of wood is moulded the composite decoration building materials, and component and parts by weight content that said wood is moulded the composite decoration building materials are: 100 parts in polyvinyl chloride resin powder; 30 parts in the mixture that in wood powder, bamboo powder, chaff powder, the agricultural crop straw powder one or more constitute with arbitrary proportion; 30 parts of calcium powders; 5～10 parts of chlorinatedpolyethylene or MBS resins; 2～6 parts of rare earth composite stabilizers; 0.5～3 part of polyethylene wax or OPE; 0.5～3 part of Triple Pressed Stearic Acid; 0.5～2.0 part of the composite foamable agent of decomposition temperature between 110 ℃～190 ℃; 5～10 parts of the frothing aids of esters of acrylic acid; 0.5～1 part of four (B-(3,5 di-tert-butyl-hydroxy phenyl) propionic acid) pentaerythritol esters or B-(3,5 di-tert-butyl-hydroxy phenyl) propionic acid stearyl alcohol ester; 0.5～1 part of titanic acid ester or silane coupling agent; 1～3 part of toner; 0.5～1 part of weather resisting agent.
The specification of said wood powder, bamboo powder, chaff powder or agricultural crop straw powder is more than 80 orders.
Said toner is made up of background color powder and wood grain master batch, and said background color powder is meant the pigment of base material being dyed the entire body look, and said wood grain master batch is meant the Masterbatch that on base material, produces wood grain color and emulation lines.Background color powder and the different matched combined (can mix with arbitrary proportion) of wood grain master batch two portions material process form timber outward appearances such as similar teak, redwood, walnut, and effect is true to nature, gives the sensation of real logs.
A kind of above-mentioned wood is moulded the method for manufacture of composite decoration building materials; Comprise the steps: at first each component that wood is moulded the composite decoration building materials is formed batching by its parts by weight and under 100 ℃～115 ℃ conditions, mixed, batch mixing under 50 ℃～60 ℃ conditions drops into tapered twin screw extruder and shears plasticizing behind the batch mixing then; The cooling vacuum typing; Traction, the scale cutting, packing becomes product.
Said tapered twin screw extruder is the taper counter rotation twin screw extruder.
Oxidation inhibitor is that four (B-(3,5 di-tert-butyl-hydroxy phenyl) propionic acid) pentaerythritol ester is claimed antioxidant 1010 again; Or, claim antioxidant 1076 again with B-(3,5 di-tert-butyl-hydroxy phenyl) propionic acid stearyl alcohol ester.
To sum up, the invention has the beneficial effects as follows:
1, the present invention adds some auxiliary agents such as calcium carbonate-filled dose, dibasic Lead Phosphite or organic tin one package stabilizer, chemical foaming agent at the PVC plastics; The esters of acrylic acid modification agent, StNa or calcium stearate lubricate regulator, TEB 3K; Silicane Y-aminopropyltriethoxywerene werene is claimed the KH-550 tensio-active agent again, polyatomic phenol oxidation inhibitor; Promptly four (B-(3,5 di-tert-butyl-hydroxy phenyl) propionic acid) pentaerythritol ester is claimed antioxidant 1010 again; Or suffocated amine antioxidant B-(3,5 di-tert-butyl-hydroxy phenyl) propionic acid stearyl alcohol ester, claim antioxidant 1076 again; The ethylene bis stearic acid amide dispersion agent, Triple Pressed Stearic Acid and lipid derivant thereof, saturated hydrocarbons polyethylene wax surface lubricant; The acid proof stain of titanium oxide or silicon salt through adding these auxiliary agents, carries out modification to the PVC plastics; Eliminate the labile element among the PVC (vinyl chloride monomer and hydrogen chloride gas etc.) to its Effect on Performance, made product of the present invention on the basis that keeps original performance, had more excellent properties and environmental protection characteristic.
2, the product of this environment-friendly composite material goes for places such as education, office building, household, hotel, market, and pattern is various, imitative wood grain; Color is complete bright-coloured, can reach the effect of mixing the spurious with the genuine, and satisfies the high decoration requirement to the Nature of people. and its process materials performance is good; Water-fast, corrosion-resistant, use comfortable. particularly there is cavernous structure foam material inside; Good heat preservation performance; Flexibility is good, has solved the chill problem of some traditional decoration material. composite foam material sound insulation simultaneously, and non-slip.In addition, can realize mass-producing during production, robotization, production efficiency is high, and cost is low, easy-maintaining, easy construction.
Embodiment
Embodiment 1:
Doing wood-plastic products with three kinds of different fillers, is respectively wood powder, chaff powder, bamboo powder.And the physicals of testing three kinds of variant prodns.Prepare burden by weight, wherein the consumption of polyvinyl chloride resin powder is 100 parts, and the consumption of wood powder or chaff powder or bamboo powder is 30 parts, and the consumption of calcium powder is 30 parts; The consumption of chlorinatedpolyethylene is 10 parts, and the consumption of rare earth composite stabilizer is 5.0 parts, and the consumption of polyethylene wax is 1.0 parts; Stearic consumption is 3.0 parts, and the consumption of whipping agent is 1.0 parts, and the consumption of the frothing aid of esters of acrylic acid is 8 parts; The consumption of oxidation inhibitor is 0.5 part, and the consumption of toner is 1.0 parts, and the consumption of weather resisting agent is 0.5 part.Above-mentioned materials is dropped into the drying that is mixed in the high temperature mixer, drop in the twin screw extruder again and extrude, typing, cutting, the physicals of three kinds of products of last test.Like table 1:
Table 1: the physicals that adopts wood powder, chaff powder, the prepared wood of bamboo powder to mould the composite decoration building materials
Embodiment 2:
Go out product with three kinds of different plastics extrusion mouldings, be respectively high density polyethylene(HDPE) (HDPE), Vestolen PP 7052 (PP), SE (PVC), and test out the physicals of three kinds of wood-plastic products.Prepare burden by weight, wherein the consumption of PVC or HDPE or PP resin-oatmeal is 100 parts, and the consumption of wood powder (more than 80 orders) is 50 parts; The consumption of calcium powder is 30 parts, and the consumption of chlorinatedpolyethylene is 10 parts, and the consumption of rare earth composite stabilizer is 4.0 parts; The consumption of polyethylene wax is 0.5 part, and stearic consumption is 1.0 parts, and the consumption of whipping agent is 0.8 part; The consumption of the frothing aid of esters of acrylic acid is 6 parts; The consumption of toughener is 1.0 parts, and the consumption of toner is 1.2 parts, and the consumption of weather resisting agent is 0.5 part.Above-mentioned materials is dropped into the drying that is mixed in the high temperature mixer, drop in the twin screw extruder again and extrude, typing, cutting, the physicals of three kinds of wood-plastic products of last test.Like table 2:
Table 2: the physicals that adopts the prepared wood of different plastics to mould the composite decoration building materials
Mould the physicals of composite decoration building materials through the wood of the foregoing description and preparation and can know that the present invention adds above-mentioned auxiliary agent at the PVC plastics, the PVC plastics are carried out modification; Eliminate the labile element among the PVC (vinyl chloride monomer and hydrogen chloride gas etc.) to its Effect on Performance, made product of the present invention on the basis that keeps original performance, had more excellent properties and environmental protection characteristic; Water-fast; Corrosion-resistant, use comfortable. particularly there is cavernous structure foam material inside, good heat preservation performance; Flexibility is good, has solved the chill problem of some traditional decoration material.The composite foam material sound insulation is non-slip simultaneously.In addition, can realize mass-producing during production, robotization, production efficiency is high, and cost is low, easy-maintaining, easy construction.
Claims (5)
1. a wood is moulded the composite decoration building materials, it is characterized in that, component and parts by weight content that said wood is moulded the composite decoration building materials are: 100 parts in polyvinyl chloride resin powder; 30 parts in the mixture that in wood powder, bamboo powder, chaff powder, the agricultural crop straw powder one or more constitute with arbitrary proportion; 30 parts of calcium powders; 5～10 parts of chlorinatedpolyethylene or MBS resins; 2～6 parts of rare earth composite stabilizers; 0.5～3 part of polyethylene wax or OPE; 0.5～3 part of Triple Pressed Stearic Acid; 0.5～2.0 part of the composite foamable agent of decomposition temperature between 110 ℃～190 ℃; 5～10 parts of the frothing aids of esters of acrylic acid; 0.5～1 part of four (β-(3,5 di-tert-butyl-hydroxy phenyl) propionic acid) pentaerythritol esters or β-(3,5 di-tert-butyl-hydroxy phenyl) propionic acid stearyl alcohol ester; 0.5～1 part of titanic acid ester or silane coupling agent; 1～3 part of toner; 0.5～1 part of weather resisting agent.
2. mould the composite decoration building materials according to the said a kind of wood of claim 1, it is characterized in that, the specification of said wood powder, bamboo powder, chaff powder or agricultural crop straw powder is more than 80 orders.
3. mould the composite decoration building materials according to the said a kind of wood of claim 1; It is characterized in that; Said toner is made up of background color powder and wood grain master batch, and said background color powder is meant the pigment of base material being dyed the entire body look, and said wood grain master batch is meant the Masterbatch that on base material, produces wood grain color and emulation lines.
4. any method of manufacture that said wood is moulded the composite decoration building materials of claim 1 to 3 is characterized in that, comprises the steps: at first each component that wood is moulded the composite decoration building materials is formed batching by its parts by weight and under 100 ℃～115 ℃ conditions, mixed; Batch mixing under 50 ℃～60 ℃ conditions then; Drop into tapered twin screw extruder behind the batch mixing and shear plasticizing, cooling vacuum typing, traction; The scale cutting, packing becomes product.
5. wood according to claim 4 is moulded the method for manufacture of composite decoration building materials, it is characterized in that, said tapered twin screw extruder is the taper counter rotation twin screw extruder.
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| CN2010101115894A CN101955614B (en) | 2010-02-22 | 2010-02-22 | Novel wood plastic composite decorative building material and manufacturing method thereof |
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| CN2010101115894A CN101955614B (en) | 2010-02-22 | 2010-02-22 | Novel wood plastic composite decorative building material and manufacturing method thereof |
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| CN101955614B true CN101955614B (en) | 2012-09-05 |
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