CN101942207B - Wood powder-polyvinyl chloride compound material and preparation method thereof - Google Patents
Wood powder-polyvinyl chloride compound material and preparation method thereof Download PDFInfo
- Publication number
- CN101942207B CN101942207B CN2010105230105A CN201010523010A CN101942207B CN 101942207 B CN101942207 B CN 101942207B CN 2010105230105 A CN2010105230105 A CN 2010105230105A CN 201010523010 A CN201010523010 A CN 201010523010A CN 101942207 B CN101942207 B CN 101942207B
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- wood powder
- wood
- polyvinyl chloride
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- pvc resins
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92895—Barrel or housing
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Dry Formation Of Fiberboard And The Like (AREA)
Abstract
The invention provides a wood powder-polyvinyl chloride compound material and a preparation method thereof. The wood powder-polyvinyl chloride compound material comprises the following raw materials in percentage by weight: 50 to 70 percent of wood powder serving as a base material, 20 to 50 percent of polyvinyl chloride resin, 5 to 10 percent of calcium carbonate and 2 to 5 percent of stearic acid, and the silane coupling agent is 1 to 10 percent based on the content of the wood powder. The invention also provides a method for preparing the wood powder-polyvinyl chloride compound material. The wood powder content of the wood powder-polyvinyl chloride compound material is high, and the production cost is greatly lowered; not only the advantages of wood on processing property are kept, but also the defect that the wood is easily damaged by worms is overcome, so that the wood powder-polyvinyl chloride compound material can replace the wood packaging material and matting material, and also be applicable for decorative boards, floors and anti-corrosive work sheds, passages, racks, casting models, and the like in chemical engineering industry.
Description
Technical field
The present invention relates to a kind of wood plastic composite, specifically, relate to a kind of wood powder polyvinyl chloride composite materials and preparation method thereof.
Background technology
Existing composite wood such as composite floor board etc. all are directly to add sticker by polylith timber to be composited, and its cost is higher; And the sticker that uses usually contains formaldehyde; Cause pollution to environment; Also generation has a strong impact on to HUMAN HEALTH, the people is also arranged at present at research vegetable fibre wood plastic composite; But because vegetable fibre is different with the resin matrix surface property, both compound tense bonding interface effects are relatively poor, thereby cause the reduction of matrix material each item performance, influenced the popularization and application of this matrix material.On the other hand, because relatively poor consistency between fiber and the plastic substrate makes the addition of fiber receive serious limit; In the existing wood plastic composite; The content of vegetable fibre has only 10-25wt%, and the production cost of planting material like this is still higher, also has expensive additive cost; Make the market value of this matrix material be equivalent to even be higher than general-purpose plastics and solid wood, thereby restricted a kind of development and application of vegetable fibre wood plastic composite.
Summary of the invention
The objective of the invention is to overcome vegetable fibre and resin boundary surface two mutually compatible difficulties in the prior art; The not high shortcomings such as Wood-plastic material cost height that cause of vegetable fibre addition provide wood powder polyvinyl chloride composite materials of a kind of with low cost, excellent property and preparation method thereof.
The objective of the invention is to realize through following technical scheme:
The present invention's wood powder polyvinyl chloride composite materials; Be mixed by base-material wood powder, PVC RESINS and additive lime carbonate, Triple Pressed Stearic Acid and silane coupling agent and process; The content of said wood powder is 50%～70wt%, and the content of PVC RESINS is 20%～50 wt%, lime carbonate 5%-10 wt %; Stearic content is 2 wt%-5 wt%, and the content of silane coupling agent is 1 wt%-10 wt % of wood powder content.
The present invention's wood powder polyvinyl chloride composite materials preparation method; May further comprise the steps: (1) wood powder pre-treatment: wood working tankage or reclaimed waste paper are ground into 60-150 purpose wood powder on mill; Place 60-70 ℃ the dry 45-50 of baking oven hour, to water cut≤5%; Place high mixer again, add silane coupling agent, mix and stir 4-7min; (2) PVC RESINS is handled: PVC RESINS (or reclaiming the SE plastic waste), lime carbonate, Triple Pressed Stearic Acid are placed high mixer, and it is 70-100 ℃ that temperature is set, and mixes and stirs 25-35min; (3) extrusion moulding: set 140-185 ℃ of screw extrusion press temperature; It is viscous liquid that step (2) gained PVC RESINS, lime carbonate, stearic mixture are placed the screw extrusion press plastifying fusion; Then step (1) gained being added through the pretreated wood powder of silane coupling agent has become in the plastifying fusion thing of viscous liquid, and under screw acting, wood powder is homodisperse, orientation in the plastifying fusion thing; Obtain apparent homogeneous; Wood powder, the PVC RESINS that degree of scatter is higher also contains the compound system of relevant auxiliary agent, through corresponding mouthful of mould extrusion moulding, obtains wood plastic product again; Or through port mould and dicing machine extruding pelletization, form the wood plastic composite pellet, more resulting pellet is processed end article through mold pressing or injection molding method.
The advantage of wood powder SE wood plastic composite of the present invention: the wood powder amount in (1) matrix material reaches 50%～70wt%, greatly reduces production cost; (2) can make full use of a large amount of waste paper and plastic waste as raw material; Thereby realize the pollution of changing waste into valuables, minimizing environment, also can save timber resources; (3) behind a certain amount of coupling agent of introducing; Overcome polar repulsion between vegetable fibre and the xylon, combined the shortcoming of weak effect; Plastics or fiber are carried out surface-treated; Thereby improve its interface compatibility, improve the mechanical property of wood plastic composite, the content of vegetable fibre also can improve in the matrix material simultaneously; (4) wood plastic composite of being produced is easy to use, can saw, can dig, can follow closely, both kept the advantage of timber aspect processing characteristics, has overcome timber again and has not been durable and is afraid of the shortcoming of damaging by worms.(5) be widely used, can substitute wooden package material and laying material, also can be used for decorative sheet, the corrosion resistant builder's temporary shed of floor and chemical industry, passage, stand and foundry pattern etc.
Embodiment
Below in conjunction with embodiment the present invention is described further.
Embodiment 1:
The present embodiment wood plastic composite, its prescription is: the content of wood powder is 50wt%, and the content of PVC RESINS is 50 wt%, and lime carbonate 6 wt%, stearic content are 2.5 wt%, and the content of silane coupling agent is 8 wt% of wood powder content.
Preparing method: (1) wood powder pre-treatment: the wood working tankage are ground into 80 purpose wood powders on mill, place 65 ℃ dry 48 hours of baking oven, to water cut 4.8 wt%; The wood powder that drying is good places high mixer, and the adjustment rotating speed is 40r/min, pours silane coupling agent into, stirs 5min; (2) PVC RESINS is handled: PVC RESINS, lime carbonate, Triple Pressed Stearic Acid are placed high mixer, and it is 70 ℃ that temperature is set, and rotating speed is 50r/min, mixes 30min; (3) extrusion moulding: set 140-185 ℃ of screw extrusion press temperature; It is viscous liquid that step (2) gained PVC RESINS, lime carbonate, stearic mixture are placed the screw extrusion press plastifying fusion; Then step (1) gained being added through the pretreated wood powder of silane coupling agent has become in the plastifying fusion thing of viscous liquid, and under screw acting, wood powder is homodisperse, orientation in the plastifying fusion thing; Obtain apparent homogeneous; Wood powder, the PVC RESINS that degree of scatter is higher also contains the compound system of relevant auxiliary agent, again through corresponding mouthful mould and dicing machine extruding pelletization, and formation wood plastic composite pellet; Through corresponding mouthful of mould extrusion moulding, obtain wood plastic product again; Or through port mould and dicing machine extruding pelletization, form the wood plastic composite pellet, more resulting pellet is processed end article through mold pressing or injection molding method.
Present embodiment wood plastic composite tensile strength is pressed the GB/T1040-92 test; The socle girder notched Izod impact strength is pressed the GB/T1843-80 test; Flexural strength is pressed the GB/T1042-79 test.Through test, the result is: tensile strength 23MPa, elongation at break are up to 57%, and bending strength reaches 41MPa, and the I-zod resistance to impact shock reaches 21KJ/m
2
Embodiment 2:
The present embodiment wood plastic composite, its prescription is: the content of wood powder is 65wt%, and the content of PVC RESINS is 35wt%, and lime carbonate 8%, stearic content are 2.5%, and the content of silane coupling agent is 10 wt % of wood powder content.
Preparing method: (1) wood powder pre-treatment: the timber tankage are ground into 80 purpose particle diameters on mill, place 65 ℃ dry 48 hours of baking oven, to water cut 4.6%; The wood powder that drying is good places high mixer, and the adjustment rotating speed is 40r/min, pours silane coupling agent into and stirs 5min; (2) PVC RESINS is handled: PVC RESINS, lime carbonate, Triple Pressed Stearic Acid are placed high mixer, and it is 70 ℃ that temperature is set, and rotating speed is 50r/min, mixes 30min; (3) extruding pelletization: set 140-185 ℃ of screw extrusion press temperature; It is viscous liquid that step (2) gained PVC RESINS, lime carbonate, stearic mixture are placed the screw extrusion press plastifying fusion; Then step (1) gained being added through the pretreated wood powder of silane coupling agent has become in the plastifying fusion thing of viscous liquid; Under screw acting; Wood powder is homodisperse, orientation in the plastifying fusion thing, obtains apparent homogeneous, and wood powder, the PVC RESINS that degree of scatter is higher also contains the compound system of relevant auxiliary agent; Through corresponding mouthful of mould extrusion moulding, obtain wood plastic product again; Or through port mould and dicing machine extruding pelletization, form the wood plastic composite pellet, more resulting pellet is processed end article through mold pressing or injection molding method.
Present embodiment wood plastic composite tensile strength is pressed the GB/T1040-92 test; The socle girder notched Izod impact strength is pressed the GB/T1843-80 test; Flexural strength is pressed the GB/T1042-79 test.Through test, the result is: tensile strength 26MPa, elongation at break are up to 48%, and bending strength reaches 45MPa, and the I-zod resistance to impact shock reaches 16KJ/m
2
Claims (2)
1. wood powder polyvinyl chloride composite materials; Be mixed by base-material wood powder, PVC RESINS and additive lime carbonate, Triple Pressed Stearic Acid and silane coupling agent and process, it is characterized in that: the content of said wood powder is 50 wt%～70wt%, and the content of PVC RESINS is 20 wt %～50 wt%; Lime carbonate 5 wt %-10 wt %; Stearic content is 2 wt%-5 wt%, and the content of silane coupling agent is 1 wt%-10 wt % of wood powder content, and each component sum is 100%.
2. preparation method of wood powder polyvinyl chloride composite materials according to claim 1; It is characterized in that: may further comprise the steps: (1) wood powder pre-treatment: the wood working tankage are ground into 60-150 purpose wood powder on mill; Place 60-70 ℃ the dry 45-50 of baking oven hour, to water cut≤5%; Place high mixer again, add silane coupling agent, mix and stir 4-7min; (2) PVC RESINS is handled: PVC RESINS, lime carbonate, Triple Pressed Stearic Acid are placed high mixer, and it is 70-100 ℃ that temperature is set, and mixes and stirs 25-35min; (3) extrusion moulding: set 140-185 ℃ of screw extrusion press temperature; It is viscous liquid that step (2) gained PVC RESINS, lime carbonate, stearic mixture are placed the screw extrusion press plastifying fusion; Then step (1) gained being added through the pretreated wood powder of silane coupling agent has become in the plastifying fusion thing of viscous liquid, and under screw acting, wood powder is homodisperse, orientation in the plastifying fusion thing; Obtain apparent homogeneous; Wood powder, the PVC RESINS that degree of scatter is higher also contains the compound system of relevant auxiliary agent, through corresponding mouthful of mould extrusion moulding, obtains wood plastic product again; Or through port mould and dicing machine extruding pelletization, form the wood plastic composite pellet, more resulting pellet is processed end article through mold pressing or injection molding method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105230105A CN101942207B (en) | 2010-10-28 | 2010-10-28 | Wood powder-polyvinyl chloride compound material and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010105230105A CN101942207B (en) | 2010-10-28 | 2010-10-28 | Wood powder-polyvinyl chloride compound material and preparation method thereof |
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| CN101942207A CN101942207A (en) | 2011-01-12 |
| CN101942207B true CN101942207B (en) | 2012-03-21 |
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| CN2010105230105A Expired - Fee Related CN101942207B (en) | 2010-10-28 | 2010-10-28 | Wood powder-polyvinyl chloride compound material and preparation method thereof |
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| CN102229729B (en) * | 2011-05-10 | 2013-04-10 | 江苏明天材料科技有限公司 | Wood plastic composite plate capable of adsorbing toxic gas, and preparation method thereof |
| CN102329466B (en) * | 2011-07-27 | 2013-06-05 | 福建弘景木塑科技股份有限公司 | Method for preparing wood-plastic composite material |
| CN102585537A (en) * | 2012-03-13 | 2012-07-18 | 林仕华 | Wood and calcium plastic mixed and co-extruded material |
| 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 |
| CN103659946A (en) * | 2013-11-30 | 2014-03-26 | 北京林业大学 | Directional wood-plastic composite plate and manufacturing method thereof |
| CN104130589B (en) * | 2014-07-24 | 2016-06-22 | 武夷山市美华实业有限公司 | A kind of Wood-plastic floor and manufacture method thereof |
| CN104277376A (en) * | 2014-10-31 | 2015-01-14 | 安徽省三乐门窗幕墙工程有限公司 | Calcium carbonate filler for plastic doors and windows and preparation method of calcium carbonate filler |
| CN104327529A (en) * | 2014-11-04 | 2015-02-04 | 浙江红高梁木业有限公司 | New preparation method of novel composite resin wood floor material |
| CN104559277A (en) * | 2014-12-26 | 2015-04-29 | 芜湖职业技术学院 | Wood-plastic composite material and preparation method thereof |
| CN105647212A (en) * | 2015-12-16 | 2016-06-08 | 广东华慧生环保科技有限公司 | Paper wood-plastic composite material, preparation process and application thereof |
| CN106221071A (en) * | 2016-08-22 | 2016-12-14 | 江阴市富华包装材料有限公司 | A kind of electrostatic that disappears, PVC floor that inking is good and preparation method thereof |
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| CN106243566A (en) * | 2016-08-22 | 2016-12-21 | 江阴市富华包装材料有限公司 | A kind of color inhibition, PVC floor that inking is good and preparation method thereof |
| CN106221070A (en) * | 2016-08-22 | 2016-12-14 | 江阴市富华包装材料有限公司 | A kind of shock resistance, the PVC floor that inking is good and preparation method thereof |
| CN106317684A (en) * | 2016-08-22 | 2017-01-11 | 江阴市富华包装材料有限公司 | PVC (polyvinyl chloride) floor with good inking property and preparation method thereof |
| CN108099227B (en) * | 2017-12-22 | 2020-01-31 | 湖南工业大学 | Preparation method of bamboo fiber/polyvinyl chloride composite material and composite material prepared based on method |
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Assignee: Zhuzhou Hongda Polymer Materials Co., Ltd. Assignor: Zeng Guangsheng Contract record no.: 2012430000125 Denomination of invention: Wood powder-polyvinyl chloride compound material and preparation method thereof Granted publication date: 20120321 License type: Exclusive License Open date: 20110112 Record date: 20120607 |
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