CN102604261A - Formula for manufacturing wood-plastic composite section - Google Patents
Formula for manufacturing wood-plastic composite section Download PDFInfo
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- CN102604261A CN102604261A CN2012100564274A CN201210056427A CN102604261A CN 102604261 A CN102604261 A CN 102604261A CN 2012100564274 A CN2012100564274 A CN 2012100564274A CN 201210056427 A CN201210056427 A CN 201210056427A CN 102604261 A CN102604261 A CN 102604261A
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- plastic composite
- wood
- composite section
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- section bar
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Abstract
The invention discloses a formula for manufacturing a wood-plastic composite section. The formula comprises the following materials in percentage by weight: 33.23 percent of wood fiber powder, 36.93 percent of polyvinyl chloride resin, 18.46 percent of filler, 1.48 percent of chlorinated polyethylene, 1.11 percent of acrylate copolymer, 0.45 percent of lubricant, 2.95 percent of stabilizer, 3.18 percent of plasticizer, 0.96 percent of foaming agent and 1.25 percent of toughening agent. The wood-plastic composite section manufactured by the invention has the characteristics of raw material recycling, product plasticizing, environmentally-friendly application, economic cost and renewable recovery.
Description
Technical field
The present invention relates to a kind of prescription of making section bar, be specifically related to a kind of prescription of making Wood-plastic composite section bar.
Background technology
Wood plastic composite (Wood-polymer Composites, abbreviation WPC) is to be main component with xylon or vegetable fibre, makes it a kind of type material with THERMOPLASTIC RESINS or other materials be combined into through pre-treatment.This material can be given full play to the advantage of each component in the material, overcomes the shortcoming of single-material, not only can improve the physical and mechanical property and the processing characteristics of material, reduces cost and the broadened application scope, has also improved the added value of material.Because product is the heterogeneous state of crystal form (xylon or vegetable fibre) and disordered state (resin); Make its HS that had both had xylon or vegetable fibre, snappiness; The H.T. that has polymeric matrix again, and excellent in cushion effect, hot retractility and water-absorbent is all little than timber, dimensional stability good, wear-resisting, resistance to chemical attack, be not afraid of damage by worms, non-inflammable, the dual processing characteristics that has timber and plastics concurrently.
The staple of wood plastic composite is following:
(1) PVC (PVC RESINS); SE is the polymkeric substance that is formed by polymerization of vinyl choride monomer, and PVC is a kind of noncrystalline, polar high molecular polymer, and softening temperature and melt temperature are higher, and pure PVC generally must process in the time of 160～210 ℃ in the ability plasticization;
(2) wood powder; Can be that crop stalk powder, timber mill produce remaining sawdust, the bamboo tip, pine needle, wooden young shell, Pericarppium arachidis hypogaeae, straw, pine nut shell powder etc., require raw material not have peculiar smell;
(3) stablizer; The material that wood is moulded prescription to thermoae for responsive; When Heating temperature reaches more than 90 ℃; Slight pyrolysis will take place, and the decomposition reaction aggravation is following 10 minutes at 150 ℃ after temperature is raised to 120 ℃; Material just progressively becomes yellow-redness-brown-black by original white, therefore need prevent material generation Degradation through stablizer;
(4) toughner; Toughner can make the plasticizing of polyvinyl chloride resin work in-process evenly, and plasticization temperature is low, and the impact resistance of section bar is better;
(5) lubricant; The effect of lubricant is to reduce between the material and material and the surperficial frictional force of processing units, thereby reduces the resistance to flow of melt, reduces melt viscosity, improves the flowability of melt, avoids the adhesion of melt and equipment, improves the smooth finish of product surface;
(6) modifier; Modifier ACR (ACR) is a monomeric multipolymer such as TEB 3K and propenoate, vinylbenzene etc.; ACR also can be used as impact modifying agent except that can be used as processing aid, the vital role of ACR modifier is the plasticizing that promotes that wood is moulded prescription, shortens fusion time, improves melt plastifying homogeneity, reduces plasticization temperature;
(7) impact modifying agent; An important content of wood plastic composite modification is to improve its impact resistance, and polyvinyl chloride resin is a polarity amorphism superpolymer, and stronger reactive force is arranged between the molecule, is a hard and crisp material, and resistance to impact shock is lower; After adding impact modifying agent; The elastomerics particle of impact modifying agent can reduce total crazing and cause stress, and utilizes the distortion and the shear zone of particle self, stops crazing to enlarge and growth; Sponge and import the intravital striking energy of material into, thereby reach shock proof purpose.
But existing wood plastic composite can not be as the raw material of making section bar.
Summary of the invention
Technical problem to be solved by this invention provides a kind of prescription of making Wood-plastic composite section bar, and it can form Wood-plastic composite section bar.
For solving the problems of the technologies described above, the technical solution that the present invention makes the prescription of Wood-plastic composite section bar is:
Comprise wood fiber powder 33.23%, PVC RESINS 36.93%, weighting material 18.46%, chlorinatedpolyethylene 1.48%; ACR 1.11%, lubricant 0.45%, stablizer 2.95%, softening agent 3.18%; Whipping agent 0.96%, toughner 1.25%, said each data are weight percentage.
Said wood fiber powder is that crop stalk powder, timber mill produce remaining sawdust, the bamboo tip, pine needle, wooden young shell, Pericarppium arachidis hypogaeae, straw or pine nut shell powder.
The size of said wood fiber powder is 80～100 orders.
Said weighting material is a lime carbonate.
Said lubricant is PE cured (polyethylene wax) or paraffin.
Said stablizer is a rare-earth stabilizer.
Said softening agent is the PVC processing aid.
Said whipping agent is AC whipping agent or foaming control agent.
Said toughner is chlorinatedpolyethylene.
The technique effect that the present invention can reach is:
The Wood-plastic composite section bar of made of the present invention has following characteristics:
1, raw material resourcesization; Its starting material have been realized the comprehensive utilization of resource and effectively utilization;
2, product plasticization; Can produce the goods of different performance and shape according to request for utilization;
3, use environmental protectionization; Wood molding base, usual auxiliaries and the equal safety and environmental protection of final product;
4, cost economization; Realized of the transfer of low value material to high value added product;
5, reclaimingization; Its scrap products and reclaim the regenerated using that waste material all can 100%.
Embodiment
The present invention makes the prescription of Wood-plastic composite section bar, makes Wood-plastic composite section bar through following steps:
The first step adopts wood fiber powder as major ingredient, and wood fiber powder is carried out drying; Wood fiber powder can be that crop stalk powder, timber mill produce remaining sawdust, the bamboo tip, pine needle, wooden young shell, Pericarppium arachidis hypogaeae, straw, pine nut shell powder etc., and the size of wood fiber powder is 80～100 orders;
In second step, in major ingredient, add batching;
The proportioning of major ingredient and batching (weight percent) is:
Wood fiber powder 33.23%, PVC (PVC RESINS) 36.93%, weighting material (can be lime carbonate) 18.46%; CPE (chlorinatedpolyethylene) 1.48%, ACR (ACR) 1.11%, lubricant (can be the cured or paraffin of PE) 0.45%; Stablizer (can be rare-earth stabilizer) 2.95%; Softening agent (can be the PVC processing aid) 3.18%, whipping agent (can be AC whipping agent or foaming control agent) 0.96%, toughner (can be chlorinatedpolyethylene) 1.25%;
Wherein, PVC and softening agent are the category-B raw material, and all the other are category-A raw material (comprising wood fiber powder, weighting material, CPE, ACR, lubricant, stablizer, whipping agent, toughner);
The 3rd step is with major ingredient and batch mixes;
Blending means is following:
Operation one, heat are mixed;
The category-A raw material is dropped into the heat of high-speed mixer and mix in the pot, start the motor that heat is mixed pot, the category-A raw material is heated, when the temperature of category-A raw material rises to 85 ℃, drop into the category-B raw material, continue material is heated, rise to 120 ℃ until material temperature;
Operation two, cold mixing;
With temperature is that 120 ℃ material drops in the cold mixer and mixes discharging when material temperature drops to 45 ℃.
The main effect that heat of the present invention is mixed is to make in the prescription each component fully carry out physical mixed, it is uniformly dispersed, and discharges water vapor wherein; The origin of heat that heat is mixed is to lean on the high speed rotating of high-speed mixer to drive the material high-speed motion, and material and pot wall and stirring rake frictional heat, the frictional heat between the material rise temperature.The temperature of this process is provided with main consideration and does not use resin to decompose, the moisture volatilization of fully vaporizing, and lubricant class material can melt and be uniformly dispersed.After heat mix to finish material entered in the cold mixer and lowers the temperature, when temperature drops to 45 ℃ of left and right sides, material is discharged, if there is not this process of cooling, the solid accumulation of heat together, heat distributes and does not go out, and can cause material to cross thermolysis.
The 4th step, granulation;
Adopt tablets press to carry out granulation;
The 5th step, extrusion moulding; Adopt forcing machine with material forming;
Make material get into barrel from the hopper of forcing machine, material is through the effect between barrel and screw rod, and the limit receives thermoplastification, and the limit is pushed forward by screw rod, passes through head continuously, thereby forms the goods or the work piece in various cross sections;
The screw rod of forcing machine is divided into three sections along the heading of material; Feeding section, fusing section, fluxing zone; Under the turning effort of screw rod; Through the fricting shearing effect of material tube inner wall and screw surface, through the feeding section, loose solid materials is compacted in proal process material simultaneously earlier;
The temperature of feeding section is 145～160 ℃; If temperature is low excessively, can make the mass transport time lengthening, reduce the length of fusing section and fluxing zone, cause the effect that plasticizing is bad, influence quality product;
Material moves forward to the fusing section, and under the effect of the outer heating of barrel and screw rod and material tube inner wall fricting shearing, temperature of charge raises and begins fusion;
Material moves forward to fluxing zone, and material is extruded through fluxing zone, to the head aftershaping, obtains goods.
The temperature of fluxing zone is 150～160 ℃; The bad plasticizing rate that can influence product of plasticization temperature control, product plastified low, and material is harder, causes product that bubble is arranged easily.
The processing parameter setting of forcing machine is: 59 amperes in electric current, main frame revolution 16 commentaries on classics/PMs, feeding revolution 16 commentaries on classics/PMs, chamber pressure 15 handkerchiefs, 1 m/min of pulling speed.
Claims (9)
1. a prescription of making Wood-plastic composite section bar is characterized in that, comprises wood fiber powder 33.23%; PVC RESINS 36.93%, weighting material 18.46%, chlorinatedpolyethylene 1.48%; ACR 1.11%, lubricant 0.45%, stablizer 2.95%; Softening agent 3.18%, whipping agent 0.96%, toughner 1.25%.
2. the prescription of making Wood-plastic composite section bar according to claim 1 is characterized in that, said wood fiber powder is that crop stalk powder, timber mill produce remaining sawdust, the bamboo tip, pine needle, wooden young shell, Pericarppium arachidis hypogaeae, straw or pine nut shell powder.
3. the prescription of making Wood-plastic composite section bar according to claim 1 is characterized in that, the size of said wood fiber powder is 80～100 orders.
4. the prescription of making Wood-plastic composite section bar according to claim 1 is characterized in that, said weighting material is a lime carbonate.
5. the prescription of making Wood-plastic composite section bar according to claim 1 is characterized in that, said lubricant is the cured or paraffin of PE.
6. the prescription of making Wood-plastic composite section bar according to claim 1 is characterized in that, said stablizer is a rare-earth stabilizer.
7. the prescription of making Wood-plastic composite section bar according to claim 1 is characterized in that, said softening agent is the PVC processing aid.
8. the prescription of making Wood-plastic composite section bar according to claim 1 is characterized in that, said whipping agent is AC whipping agent or foaming control agent.
9. the prescription of making Wood-plastic composite section bar according to claim 1 is characterized in that, said toughner is chlorinatedpolyethylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100564274A CN102604261A (en) | 2012-03-06 | 2012-03-06 | Formula for manufacturing wood-plastic composite section |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100564274A CN102604261A (en) | 2012-03-06 | 2012-03-06 | Formula for manufacturing wood-plastic composite section |
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| CN102604261A true CN102604261A (en) | 2012-07-25 |
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| CN2012100564274A Pending CN102604261A (en) | 2012-03-06 | 2012-03-06 | Formula for manufacturing wood-plastic composite section |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105128560A (en) * | 2015-08-27 | 2015-12-09 | 蚌埠市神龙笔业有限公司 | Sterilizing pencil with function of sawdust recycling |
| WO2020067859A1 (en) * | 2018-09-25 | 2020-04-02 | Corporativo Boro S.A. De C.V. | Biodegradable paste for multiple uses and method for preparing same |
| CN113004602A (en) * | 2021-03-02 | 2021-06-22 | 哈尔滨商业大学 | Pinecone powder filled degradable plastic and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101519534A (en) * | 2009-03-23 | 2009-09-02 | 季光明 | Wood-plastic composite material and manufacturing method thereof |
| CN101942158A (en) * | 2010-09-09 | 2011-01-12 | 鞍山大地建材科技发展有限公司 | Wood/plastic building template |
| CN102108168A (en) * | 2010-12-24 | 2011-06-29 | 上海国成塑料有限公司 | Preparation method of polyvinyl chloride (PVC) foamed wood-plastic window sectional material |
| CN102336978A (en) * | 2010-07-16 | 2012-02-01 | 中国科学院青岛生物能源与过程研究所 | Cotton stalk powder/polyvinyl chloride (PVC) crust foaming composite material and formation process thereof |
-
2012
- 2012-03-06 CN CN2012100564274A patent/CN102604261A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101519534A (en) * | 2009-03-23 | 2009-09-02 | 季光明 | Wood-plastic composite material and manufacturing method thereof |
| CN102336978A (en) * | 2010-07-16 | 2012-02-01 | 中国科学院青岛生物能源与过程研究所 | Cotton stalk powder/polyvinyl chloride (PVC) crust foaming composite material and formation process thereof |
| CN101942158A (en) * | 2010-09-09 | 2011-01-12 | 鞍山大地建材科技发展有限公司 | Wood/plastic building template |
| CN102108168A (en) * | 2010-12-24 | 2011-06-29 | 上海国成塑料有限公司 | Preparation method of polyvinyl chloride (PVC) foamed wood-plastic window sectional material |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105128560A (en) * | 2015-08-27 | 2015-12-09 | 蚌埠市神龙笔业有限公司 | Sterilizing pencil with function of sawdust recycling |
| WO2020067859A1 (en) * | 2018-09-25 | 2020-04-02 | Corporativo Boro S.A. De C.V. | Biodegradable paste for multiple uses and method for preparing same |
| CN113004602A (en) * | 2021-03-02 | 2021-06-22 | 哈尔滨商业大学 | Pinecone powder filled degradable plastic and preparation method thereof |
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Effective date of registration: 20130724 Address after: 5 floor, Century Towers, No. 277, labour Road, Tiantai County, Zhejiang, Taizhou, 317100 Applicant after: Ying Mingyou Address before: 311215, No. eight, No. eight, Hui Hui farm, Xiaoshan District, Zhejiang, Hangzhou Applicant before: Yingzida Decoration Material Co., Ltd. |
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Effective date of registration: 20130911 Address after: 317100 No. 277 labour Road, Tiantai County, Zhejiang, Taizhou Applicant after: Li Xuelian Address before: 5 floor, Century Towers, No. 277, labour Road, Tiantai County, Zhejiang, Taizhou, 317100 Applicant before: Ying Mingyou |
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Application publication date: 20120725 |