CN1245455C - Composition for producing synthetic timber and its prepn process - Google Patents

Composition for producing synthetic timber and its prepn process Download PDF

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Publication number
CN1245455C
CN1245455C CN 02109039 CN02109039A CN1245455C CN 1245455 C CN1245455 C CN 1245455C CN 02109039 CN02109039 CN 02109039 CN 02109039 A CN02109039 A CN 02109039A CN 1245455 C CN1245455 C CN 1245455C
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powder
wood
kilogram
parts
composition
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CN 02109039
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Chinese (zh)
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CN1432605A (en
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常怀春
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常怀春
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Abstract

The present invention relates to a composition for manufacturing synthetic wood and a manufacturing method thereof. The composition comprises any one of polyvinyl chloride resin, wood powder, shell flour, crop straw powder and wastepaper powder or a mixture thereof and at least one composition of an impact modifier from chlorinated polyethylene polymer, acrylonitrile-butadiene-styrene polymer, methyl methacrylate-butadiene-styrene polymer. The manufacturing method can prepare granular materials or powder materials according to requirements, the granular materials are mixed according to a weight ratio of the composition and are manufactured by a hot mixing machine, an extruder and a granulating machine according to technical requirements. The powder materials are manufactured with the method that raw materials are put in the mixing machine for three times according to a weight ratio. The composition can be used for producing composite wood with wood grains and natural wood characteristics, the composite wood can be largely used in the fields of indoor-outdoor decoration, building industry, etc. by replacing natural wood, and human's dependence on natural wood can be reduced.

Description

Be used to make the composition of synthetic wood

Technical field

The present invention relates to a kind of composition that is used to make synthetic wood.

Background technology

In order to satisfy the needs of human being's production and life, people cut down timber in a large number, make the forest reserves suffer serious destruction, and the Nature ecotope is subjected to great infringement.Be the offspring that benefits future generations, people are developing the material of various alternative natural timbers, to reduce human dependence to natural timber.But because there are a lot of defectives in existing natural timber substitute,, can not process etc., therefore can not satisfy the consumers demand that people favor wooden product according to natural timber as lines and the texture that does not have natural timber.As improvement, people begin to develop wood-like plastics, promptly so-called synthetic wood.Prior art (US.6 for example, 066,367 and US.5,869,138) disclose the preparation method of some synthetic woods in, but there are a lot of defectives in these methods, as the imitated wood material of producing, it is processed or during surface fracture, graining that all can damaging surface, and can not dig, processing such as saw.

Summary of the invention

The object of the present invention is to provide the composition that is used to make synthetic wood, can make the goods that similar in appearance and quality are arranged with natural timber.

The composition that is used to make synthetic wood comprises 100 parts of polyvinyl chloride (PVC) RESINS by weight, 100 to 15 parts granularity 80~200 purpose wood powders, the shell powder, any or its mixture in crop stalk powder and the waste paper powder, 5~15 parts are selected from chlorinated polyethylene alkene polymer (CPE), acrylonitrile-butadiene-styrene (ABS) polymkeric substance (ABS), at least a impact modifier of methyl methacrylate-butadiene-styrene polymkeric substance (MBS), 0.3~2.5 parts are selected from calcium stearate, stearic acid, the internal lubricant of one or more of glyceryl monostearate and usefulness, 0.2~1.5 parts are selected from the brown coal cerinic acid, a kind of external lubricant of paraffinic hydrocarbon and polyethylene wax, 3~8 parts of stablizers, 0~10 part of softening agent, 1~8 part of processing aid, 0.1~2 parts of whipping agents, 2~10 parts of weighting agents, 0~10 part of fire-proof smoke suppressor, 0~1.5 part of UV light absorber.

Pellet and powder all have characteristics separately: the pellet long preservative period is simple to making the requirement of synthetic wood goods required equipment; Powder can deduct granulation process, saves human and material resources, financial resources.In addition, composition of the present invention can add the various tinting materials of appropriate amount as required, makes the composition of required color.The consumption of pigment is generally 0.1~1 part.

The used wood powder of the present invention can be pulverized, grind, sieve for processes such as depleted wood chip, wood shavings, timber scrap stock in the wood working, obtains the wood powder of required particle diameter.The used shell powder of the present invention is that shells processes such as almond skin, nuclear scalp, peach-pit skin, Root-bark of Coconut are pulverized, grind, sieved, and obtains the shell powder of required particle diameter.The used crop stalk powder of the present invention is that processes such as corn stem, oranges and tangerines bar, Wheat Straw are pulverized, grind, sieved, and obtains the crop stalk powder of required particle diameter.The used waste paper powder of the present invention mainly refers to disregard message paper powder.Before using wood powder, shell powder, crop stalk powder or waste paper powder are removed out impurity, and carry out drying treatment.

Used stablizer is any of conventional Pb stabilizer, metallic soap class stablizer, organic tin stablizer among the present invention; Softening agent is PVC common plasticizers such as phthalic ester plasticizer, fatty diacid ester plasticizer, epoxy plasticizer, phosphate plasticizer etc.; Processing aid is esters of acrylic acid (ACR) processing aid commonly used; Whipping agent is the organic or inorganic chemical foaming agent, and preferred Cellmic C 121 (AC) or AC and sodium bicarbonate are shared; The example of weighting agent is lime carbonate, asbestos, potter's clay or talcum etc., preferred lime carbonate; Tinting material is general organic or inorganic pigment, as organic yellow, medium chrome yellow medium yellow, precious red, titanium dioxide etc.; UV light absorber and fire-proof smoke suppressor are that this area is commonly used.

Feeding sequence is very important in the said process, stablizer can not be thrown with ACR, because ACR preferentially adsorbed stablizer, thereby the amount that makes PVC receive stablizer reduces, and causes the material stability decreases.External lubricant also should not add too early, adds external lubricant too early frictional heat is reduced, and has not only prolonged mixing time, reduces mixed effect simultaneously, also influences the abundant dispersion of stablizer.

Because PVC belongs to temperature-sensitive material, therefore when the preparation granular composition, the control of each section of forcing machine temperature is very important.When using single screw extrusion machine,, should adopt the way that heats up gradually, can prevent that PVC from crossing thermolysis because frictional heat is big; When using twin screw extruder, adopt the multi-stage type heating, temperature should adopt type of heating low between the senior middle school of two ends.But data shown in the said temperature control reference table 1.In a word, plasticization temperature is controlled between 120~200 ℃.

Embodiment

The composition that is used to make synthetic wood comprises 100 parts of polyvinyl chloride (PVC) RESINS by weight, 100 to 150 parts granularity 80~200 purpose wood powders, the shell powder, any or its mixture in crop stalk powder and the waste paper powder, 5~15 parts are selected from chlorinated polyethylene alkene polymer (CPE), acrylonitrile-butadiene-styrene (ABS) polymkeric substance (ABS), at least a impact modifier of methyl methacrylate-butadiene-styrene polymkeric substance (MBS), 0.3~2.5 parts are selected from calcium stearate, stearic acid, the internal lubricant of one or more of glyceryl monostearate and usefulness, 0.2~1.5 parts are selected from the brown coal cerinic acid, a kind of external lubricant of paraffinic hydrocarbon and polyethylene wax, 3~8 parts of stablizers, 0~10 part of softening agent, 1~8 part of processing aid, 0.1~2 parts of whipping agents, 2~10 parts of weighting agents, 0~10 part of fire-proof smoke suppressor, 0~1.5 part of UV light absorber.

The preparation method of pellet composition of the present invention comprises the steps: that at first any or its mixture in polyvinyl chloride resin and wood powder, shell powder, crop stalk powder or the waste paper powder being dropped into heat as feeding intake for the first time mixes in the machine even in 50 ℃ of following low speed mixing; Then stablizer, internal lubricant, weighting agent, tinting material are dropped into heat as feeding intake for the second time and mix in the machine, even in 100-110 ℃ of high-speed mixing; Then impact modifier, processing aid, whipping agent, external lubricant are dropped into heat as feeding intake for the third time and mix in the machine, even in 110-125 ℃ of high-speed mixing.Raw material after heat mixed adds in the cold mixer, cools to below 40 ℃, promptly gets powder composition.Increase through the mixed apparent material density of heat, some position of material or edge have become transparent or semitransparent, i.e. partial melting plasticizing.Raw material after heat mixed adds in the cold mixer, cools to below 50 ℃, promptly gets mixing raw material.The gained mixing raw material after the plasticizing and kneading effect of single screw rod or twin screw extruder, is entered tablets press and finishes granulation.

The control of table 1 extruder temperature (℃) Forcing machine Fuselage The transition body Head IV district, III district, II district, I district II district, I district Single screw rod 120~140?140~160?160~175?175~185 ??185~195 190~195?180~190 Twin screw 185~190?180~185?170~175?175~180 ??180~185 180~185?180~185

Use composition of the present invention to produce synthetic wood by conventional injection moulding, technology such as extrude, these synthetic woods have and natural timber similar in appearance and quality, and some performance is better than natural timber.By the wood grain design, can make the color and the wood grain of various timber; When directly contacting with human skin, the wet and slippery sticky sensation that does not have plastic material to produce so feasible synthetic wood product with composition manufacturing of the present invention takes, is watched with the tail of one's eye, and almost can not differentiating is plastics, or timber.Except that These characteristics, compare with composition manufacturing synthetic wood product of the present invention and natural timber, have difficult combustion, low-smoke and inexpensive characteristics.By adding impact modifier, improved the performance of the aspects such as anti-impact, mechanical workout of goods, can dig these synthetic woods, cut, saw, follow closely, processing such as bonding; Be used for house indoor and outdoor decoration, picture frame, sash, floor or the like in a large number and use the field of natural timber, have broad application prospects.Composition of the present invention can make full use of the material that wooden unit, sawdust, wood shavings, bark, branch, crop stalk, shell etc. went out of use originally, not only reduce cost, also can solve refuse pollution and handling problem that above-mentioned rejected material causes, have the dual notion of natural timber and environmental protection.By adding fire-proof smoke suppressor, can improve the flame retardant properties of synthetic wood.By adding UV light absorber, can improve the anti-ultraviolet property of synthetic wood, make it be fit to outdoor use.

The following examples are used to further specify the present invention.

Embodiment 1

10 kilograms of PVC, 13 kilograms of wood powders (median size 140 orders), 0.3 kilogram of 0.9 kilogram of CPE, ACR, 0.3 kilogram of lead sulfate tribasic, 0.2 kilogram of dibasic lead phosphite, 0.2 kilogram of lead stearate, 0.1 kilogram of barium stearate, 0.5 kilogram of calcium stearate, 0.1 kilogram in paraffin, 0.3 kilogram of Cellmic C 121,1 kilogram in lime carbonate, 0.03 kilogram of organic yellow are made granular or powder composition according to aforementioned preparation method.

Embodiment 2

10 kilograms of PVC, 14 kilograms of wood powders (median size 140 orders), 0.1 kilogram of 0.6 kilogram of ABS, ACR, 0.2 kilogram of dibutyl tin thiolate, 0.1 kilogram of calcium stearate, 0.1 kilogram in PE wax, 0.2 kilogram of Cellmic C 121,0.1 kilogram of sodium bicarbonate, 0.5 kilogram in lime carbonate, 0.04 kilogram of medium chrome yellow medium yellow, precious red 0.004 kilogram, make granular or powder composition according to aforementioned preparation method.

Embodiment 3

10 kilograms of PVC, 10 kilograms of wood powders (median size 140 orders), 0.7 kilogram of MBS, 0.6 kilogram of ACR, 0.6 kilogram of the own ester of phthalic acid two (2-ethyl), 0.15 kilogram of tribasic Lead Phosphite, Dibasic (Coated), 0.5 kilogram of epoxy soybean oil, 0.1 kilogram of cadmium stearate, 0.1 kilogram of barium stearate, 0.3 kilogram of stearic acid, 0.2 kilogram of montanic acid wax, 0.2 kilogram of Cellmic C 121,1 kilogram in lime carbonate, 0.02 kilogram of medium chrome yellow medium yellow, 0.05 kilogram of UV light absorber UV-9 (Shenyang Ward chemistry company limited), 0.5 kilogram of fire-proof smoke suppressor SSH-93N (Sichuan fire science institute) makes granular or powder composition according to aforementioned preparation method.

Embodiment 4

10 kilograms of PVC, 14 kilograms, 0.8 kilogram in shell powder (median size 140 orders), 0.6 kilogram of ACR, 0.6 kilogram of dibutyl phthalate, 0.15 kilogram of cadmium stearate, 0.15 kilogram of barium stearate, 0.4 kilogram of Lead Phosphite, Dibasic (Coated), 0.1 kilogram in paraffin, 0.2 kilogram of Cellmic C 121,0.5 kilogram in lime carbonate, 0.3 kilogram of titanium dioxide, 0.04 kilogram of organic yellow are made granular or powder composition according to aforementioned preparation method.

Embodiment 5

10 kilograms of PVC, 15 kilograms in crop stalk powder (median size 140 orders), 0.3 kilogram of 0.9 kilogram of CPE, ACR, 0.5 kilogram of calcium stearate, 0.1 kilogram of stearic acid, 0.2 kilogram of monoolein, 0.2 kilogram of thiol-butyl tin, 0.3 kilogram of Cellmic C 121,0.2 kilogram in lime carbonate, 0.03 kilogram of organic yellow are made granular or powder composition according to aforementioned preparation method.

Embodiment 6

10 kilograms of PVC, 13 kilograms in waste paper powder (median size 140 orders), 0.9 kilogram of MBS, ACR0.6 kilogram, 0.15 kilogram of alkali lead stearate, 0.4 kilogram of lead phosphate, 0.05 kilogram in paraffin, 0.3 kilogram of Cellmic C 121,0.8 kilogram in lime carbonate, 0.03 kilogram of organic yellow, 0.02 kilogram of UV light absorber UV-9 (Shenyang Ward chemistry company limited) makes granular or powder composition according to aforementioned preparation method.

Embodiment 7

10 kilograms of PVC, 6 kilograms of wood powders (median size 140 orders), 6 kilograms in shell powder (median size 140 orders), 0.6 kilogram of ABS, 0.1 kilogram of ACR, 0.3 kilogram of lead sulfate tribasic, 0.2 kilogram of dibasic lead phosphite, 0.2 kilogram of lead stearate, 0.1 kilogram of barium stearate, 0.5 kilogram of calcium stearate, 0.1 kilogram in paraffin, 0.3 kilogram of Cellmic C 121,0.5 kilogram in lime carbonate, 0.05 kilogram of titanium dioxide, 0.03 kilogram of organic yellow, 0.8 kilogram of fire-proof smoke suppressor SSH-93N (Sichuan fire science institute) makes granular or powder composition according to aforementioned preparation method.

Claims (1)

1, a kind of composition that is used to make synthetic wood, comprise wood powder, the shell powder, any or its mixture and polyvinyl chloride (PVC) RESINS in crop stalk powder and the waste paper powder, it is characterized in that: 100 parts of polyvinyl chloride (PVC) RESINS by weight, 100 to 150 parts granularity 80~200 purpose wood powders, the shell powder, any or its mixture in crop stalk powder and the waste paper powder, 5~15 parts are selected from the chlorinated polyethylene alkene polymer, the acrylonitrile-butadiene-styrene (ABS) polymkeric substance, at least a impact modifier of methyl methacrylate-butadiene-styrene polymkeric substance, 0.3~2.5 parts are selected from calcium stearate, stearic acid, the internal lubricant that one or more of glyceryl monostearate are shared, 0.2~1.5 parts are selected from the brown coal cerinic acid, a kind of external lubricant of paraffinic hydrocarbon and polyethylene wax, 3~8 parts of stablizers, 0~10 part of softening agent, 1~8 part of processing aid, 0.1~2 parts of whipping agents, 2~10 parts of weighting agents, 0~10 part of fire-proof smoke suppressor, 0~15 part of UV light absorber, 0.1~1 part of tinting material.
CN 02109039 2002-01-14 2002-01-14 Composition for producing synthetic timber and its prepn process CN1245455C (en)

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CN1245455C true CN1245455C (en) 2006-03-15

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Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100392012C (en) * 2005-10-10 2008-06-04 四川自强科技有限公司 Wood plastic composite material building mould board, its preparation method and use
CN100463939C (en) * 2005-10-12 2009-02-25 北京化工大学 Wood plastic micro foaming composite material and its processing shaping method
CN101724190B (en) * 2008-10-14 2011-11-16 青岛理工大学 Asbestos fiber reinforced thermoplastic base wood and plastic composite material and preparing method thereof
CN102134357B (en) * 2010-01-25 2013-05-08 王广武 Wood (bamboo) powder/ABS/PVC alloy and preparation method thereof
CN102134367A (en) * 2010-01-25 2011-07-27 王广武 Polymer alloy with added wood (bamboo) powder and flake material and preparation method thereof
KR20200047759A (en) 2010-02-19 2020-05-07 파텐타 아시아 리미티드 Imitation wood
CN101857703B (en) * 2010-05-31 2012-02-01 重庆市帅之盾门业有限公司 Formula of straw composite imitation solid wood board
CN101845181B (en) * 2010-05-31 2012-05-09 重庆市帅之盾门业有限公司 Formula of straw compound real wood imitated wires
CN102002251A (en) * 2010-11-24 2011-04-06 宁波维卡木业科技有限公司 Wood plastic composite coiled material floor and preparation method thereof
CN102485788B (en) * 2010-12-01 2013-04-17 湖南忠悦塑业有限公司 Crops waste material regenerated composite plastic plate and its production process
CN102485787B (en) * 2010-12-01 2013-07-31 湖南忠悦塑业有限公司 Bamboo shred waste regenerated composite plastic plate and production technology thereof
CN102532919B (en) * 2011-12-27 2014-03-12 深圳市乐普泰科技股份有限公司 Nano wax emulsion
CN103146212A (en) * 2013-03-14 2013-06-12 福建益源废物利用股份有限公司 Synthetic resin made of waste paper
CN103319803A (en) * 2013-06-20 2013-09-25 吴江市董鑫塑料包装厂 High-strength PVC (Polyvinyl Chloride) wood polymer plastic
CN104194374B (en) * 2014-09-12 2016-10-19 鑫盛(湖州)塑木科技有限公司 A kind of fretting map wood plastic composite board and preparation method thereof
CN106117870A (en) * 2016-06-29 2016-11-16 江苏金材科技有限公司 A kind of PVC composite utilizing straw to prepare and preparation method thereof
CN107266840A (en) * 2017-06-26 2017-10-20 雄九(杭州)资本管理有限公司 The preparation method of antiflaming heat insulation acrylic plate

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