CN101985527B - Environment-friendly plant fiber wood-plastic composite material and preparation method thereof - Google Patents
Environment-friendly plant fiber wood-plastic composite material and preparation method thereof Download PDFInfo
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- CN101985527B CN101985527B CN2010105234799A CN201010523479A CN101985527B CN 101985527 B CN101985527 B CN 101985527B CN 2010105234799 A CN2010105234799 A CN 2010105234799A CN 201010523479 A CN201010523479 A CN 201010523479A CN 101985527 B CN101985527 B CN 101985527B
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- styrene
- vegetable fibre
- waste
- butadiene
- wood
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- 239000000835 fiber Substances 0.000 title claims abstract description 59
- 239000000463 material Substances 0.000 title claims abstract description 18
- 229920001587 Wood-plastic composite Polymers 0.000 title claims abstract description 16
- 239000011155 wood-plastic composite Substances 0.000 title claims abstract description 16
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 229920003023 plastic Polymers 0.000 claims abstract description 43
- 239000004033 plastic Substances 0.000 claims abstract description 43
- 239000004793 Polystyrene Substances 0.000 claims abstract description 33
- 229920002223 polystyrene Polymers 0.000 claims abstract description 33
- 239000002699 waste material Substances 0.000 claims abstract description 22
- FACXGONDLDSNOE-UHFFFAOYSA-N buta-1,3-diene;styrene Chemical compound C=CC=C.C=CC1=CC=CC=C1.C=CC1=CC=CC=C1 FACXGONDLDSNOE-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229920000468 styrene butadiene styrene block copolymer Polymers 0.000 claims abstract description 20
- 239000006087 Silane Coupling Agent Substances 0.000 claims abstract description 12
- 235000021355 Stearic acid Nutrition 0.000 claims abstract description 9
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims abstract description 9
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000008117 stearic acid Substances 0.000 claims abstract description 9
- 235000013311 vegetables Nutrition 0.000 claims description 33
- 239000000843 powder Substances 0.000 claims description 19
- 239000002023 wood Substances 0.000 claims description 19
- 241000196324 Embryophyta Species 0.000 claims description 16
- 239000011236 particulate material Substances 0.000 claims description 14
- 238000005453 pelletization Methods 0.000 claims description 12
- 241000209094 Oryza Species 0.000 claims description 10
- 235000007164 Oryza sativa Nutrition 0.000 claims description 10
- 235000009566 rice Nutrition 0.000 claims description 10
- 238000007599 discharging Methods 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 239000008188 pellet Substances 0.000 claims description 7
- 239000012752 auxiliary agent Substances 0.000 claims description 6
- 239000002131 composite material Substances 0.000 claims description 5
- 239000010903 husk Substances 0.000 claims description 5
- 238000000748 compression moulding Methods 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 4
- 230000004927 fusion Effects 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000000465 moulding Methods 0.000 claims description 4
- 238000002203 pretreatment Methods 0.000 claims description 4
- 238000005406 washing Methods 0.000 claims description 4
- 229920000426 Microplastic Polymers 0.000 claims description 2
- 239000002245 particle Substances 0.000 abstract description 3
- 241000238631 Hexapoda Species 0.000 abstract description 2
- 239000000654 additive Substances 0.000 abstract description 2
- 230000000996 additive effect Effects 0.000 abstract description 2
- 229920002678 cellulose Polymers 0.000 abstract description 2
- 239000001913 cellulose Substances 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- 238000005260 corrosion Methods 0.000 abstract 1
- 230000007797 corrosion Effects 0.000 abstract 1
- 238000000354 decomposition reaction Methods 0.000 abstract 1
- 230000002265 prevention Effects 0.000 abstract 1
- 238000011084 recovery Methods 0.000 abstract 1
- 239000011159 matrix material Substances 0.000 description 10
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- -1 polytetrafluoroethylene Polymers 0.000 description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 239000007822 coupling agent Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000010893 paper waste Substances 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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- Dry Formation Of Fiberboard And The Like (AREA)
Abstract
The present invention provides an environment-friendly plant fiber wood-plastic composite material and a preparation method thereof. The environment-friendly plant fiber wood-plastic composite material is prepared from the following components serving as base stock by weight percent: 50-90% of plant fibers, 5-40% of waste polystyrene plastic recovery particles and 5-10% of styrene butadiene styrene (SBS), as well as a proper amount of an assistant-silane coupling agent and stearic acid, wherein the use amount of the silane coupling agent accounts for 1-10wt% of the plant fibers while the use amount of the stearic acid accounts for 2-5wt% of the plant fibers. The environment-friendly plant fiber wood-plastic composite material has the advantages of insect prevention, moth resistance, chemical corrosion resistance, large additive amount of cellulose, high physical and mechanical strength, low cost, easy decomposition and wide application, and is environment-friendly.
Description
Technical field
The present invention relates to a kind of wood plastic composite and preparation method thereof, especially relate to a kind of thermoplastics polystyrene and vegetable fibre and be matrix material that raw material makes and preparation method thereof.
Background technology
Existing composite wood such as composite floor board etc. all are directly to add binding agent by polylith timber to be composited, and its cost is higher; And the binding agent that uses usually contains formaldehyde; Cause pollution to environment; Also HUMAN HEALTH is produced and have a strong impact on, at present, the people is also arranged 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 the every performance of matrix material, influenced the popularization and application of this matrix material.On the other hand owing to consistency relatively poor between fiber and the plastic substrate makes the addition of fiber be subjected to serious restriction, the content of fiber has only 10-25% in the existing vegetable fibre wood plastic composite, these are very not many for the cost meaning that reduces wood plastic composite, and expensive additive cost makes the market value of this matrix material be equivalent to even be higher than general-purpose plastics and solid wood, thereby restricted the development and the application of wood plastic composite.
Summary of the invention
The object of the present invention is to provide a kind of cheap, environment protection plant fibre wood plastic composite of multiple good characteristic and preparation method thereof.
The objective of the invention is to be achieved through the following technical solutions:
The present invention's environment protection plant fibre wood plastic composite reclaims pellet and styrene-butadiene-styrene and auxiliary agent silane coupling agent and stearic acid marriage by base-material vegetable fibre, waste and old polystyrene plastics and makes, the weight proportion of vegetable fibre in base-material is 50～90wt%, it is 5～40 wt% that waste and old polystyrene plastics reclaims the weight proportion of pellet in base-material, the weight proportion of styrene-butadiene-styrene in base-material is 5～10wt%, auxiliary agent silane coupling agent consumption is 1～10 wt % of vegetable fibre, and stearic content is the 2%-5% of vegetable fibre.
Described vegetable fibre can be wood powder or/and powdered rice hulls etc.; Also can use the waste paper powder.
The preparation method of the present invention's environment protection plant fibre wood plastic composite, may further comprise the steps: (1) vegetable fibre pre-treatment: the wood working tankage or/and rice husk is made the vegetable fibre powder of 180-300 μ m with shredder, are put into air dry oven and be dried to water ratio less than 5% under 90-105 ℃; The vegetable fibre powder that drying is good is put into high mixer, adds silane coupling agent, mixed 5-8 minute, and discharging, standby; (2) reclaim the preparation of polystyrene plastic pellet: after the waste and old polystyrene plastics that reclaims is ground into 20-30 purpose powder with plastic crusher, with the clear water washing, extruding pelletization and dry in forcing machine then; (3) step (2) gained waste and old polystyrene plastics is reclaimed particulate material and styrene-butadiene-styrene and stearic acid and put into high mixer, adjusting rotating speed is 35-45r/min, and temperature is 4-6 ℃, mixed 8-10 minute, and discharging, standby; (4) extruding pelletization: step (1) gained modified plant fibers and step (3) gained waste and old polystyrene plastics are reclaimed particulate material pour vegetable fibre pressure loading hopper and plastics loading hopper respectively into styrene-butadiene-styrene and stearic mixture, earlier waste and old polystyrene plastics is reclaimed particulate material and styrene-butadiene-styrene and stearic mixture and add fusion in the twin screw extruder, add step (1) gained modified plant fibers again, extruding pelletization; (5) compression molding: step (4) gained pellet is joined in the mould, the control rate of heating is 7-9 ℃/min, be warmed up to 180-190 ℃, keep 7-9min, be pressurized to 9-11MPa again, and keep 14-16min, under molding pressure, naturally cool to room temperature then, die sinking, cut, obtain wood plastic product.
For the ease of the demoulding, can paste one deck polytetrafluoroethylene film at mould inner wall.
Thermoplastics of the present invention is the reclaiming polystyrene plastics, and vegetable fibre mainly comprises the crushed material of natural plant fibres such as wood powder, rice husk or waste paper etc.; Polystyrene plastic is a non-polar material because vegetable fibre is strong polarity, both polar repulsions, both are in conjunction with poor effect in mixing process, after adding coupling agent, because coupling agent contains the polar group that combines with the vegetable fibre fiber on the one hand, have the macromolecular chain compatible structure compatible on the other hand with macromolecular material, thereby between two individual system, form a kind of transition and both are closely linked together, and then improve the content of vegetable fibre in the intensity of matrix material and the matrix material.
The present invention's environment protection plant fibre wood plastic composite has insect protected, mothproof, resistance to chemical attack, and the Mierocrystalline cellulose addition is big, the physical mechanical strength height, and cost is low easily to be decomposed, be widely used, be a kind of environmental type material.
Embodiment
The invention will be further described below in conjunction with embodiment.
Embodiment 1
Present embodiment vegetable fibre polystyrene plastic matrix material, in the base-material, wood powder content is 60wt%, and it is 35wt% that waste and old polystyrene plastics reclaims particulate material content, and the content of styrene-butadiene-styrene is 5%; Auxiliary agent silane coupling agent consumption is 10 wt % of wood powder, and stearic acid dosage is 2 wt% of wood powder.
Preparation: (1) vegetable fibre pre-treatment: the timber tankage are made the wood powder of 200～220 μ m on shredder, put into air dry oven and under 100 ℃, be dried to water ratio less than 5%; The wood powder that drying is good is put into high mixer, adds silane coupling agent, mixes 5 minutes, and discharging is standby; (2) reclaim the preparation of polystyrene plastic particle: after the waste and old polystyrene plastics that reclaims is ground into 20 purpose powders with plastic crusher, with the clear water washing, extruding pelletization and dry in forcing machine then.(3) waste and old polystyrene plastics is reclaimed particulate material, styrene-butadiene-styrene and stearic acid and put into high mixer, adjusting temperature is 5 ℃, mixed 8 minutes, and discharging, standby; (4) extruding pelletization: step (1) gained modified plant fibers and step (3) gained waste and old polystyrene plastics are reclaimed particulate material pour vegetable fibre pressure loading hopper and plastics loading hopper respectively into styrene-butadiene-styrene and stearic mixture, earlier waste and old polystyrene plastics is reclaimed particulate material and styrene-butadiene-styrene and stearic mixture and add fusion in the twin screw extruder, add step (1) gained modified plant fibers again, extruding pelletization; (5) compression molding: step (4) gained pellet is joined in the mould, and the control rate of heating is 8 ℃/min, is warmed up to 185 ℃, keep 8min, be pressurized to 10MPa again, and keep 15min, under molding pressure, naturally cool to room temperature then, die sinking, cut, obtain wood plastic product; For the ease of the demoulding, post one deck polytetrafluoroethylene film at mould inner wall.
Present embodiment wood powder polystyrene plastic matrix material 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.The result is: tensile strength is 23MPa, and elongation at break is up to 36%, and bending strength reaches 41MPa, and the I-zod resistance to impact shock reaches 19KJ/m
2
Embodiment 2
Present embodiment vegetable fibre poly styrene composite material, in the base-material, powdered rice hulls content is 80wt%, and the content that waste and old polystyrene plastics reclaims particulate material is 10wt%, and the content of styrene-butadiene-styrene is 10%; Auxiliary agent silane coupling agent consumption is 10 wt % of powdered rice hulls, and stearic content is 3% of powdered rice hulls.
Preparation: (1) rice husk pre-treatment: rice husk is made the vegetable fibre of 180～280 μ m on shredder, put into air dry oven and under 100 ℃, be dried to water ratio less than 5%; The vegetable fibre that drying is good is put into high mixer, and temperature is 30 ℃, adds silane coupling agent, mixes 5 minutes, and discharging is standby; (2) reclaim the preparation of polystyrene plastic particle: with the igelite that reclaims after plastic crusher is ground into 30 purpose powders, with the clear water washing, extruding pelletization and dry in forcing machine then; (3) waste and old polystyrene plastics is reclaimed particulate material, styrene-butadiene-styrene and stearic acid and put into high mixer, adjusting temperature is 5 ℃, mixes 8 minutes, and discharging is standby; (4) extruding pelletization: step (1) gained modified plant fibers and step (3) gained waste and old polystyrene plastics are reclaimed particulate material pour vegetable fibre pressure loading hopper and plastics loading hopper respectively into styrene-butadiene-styrene and stearic mixture, earlier waste and old polystyrene plastics is reclaimed particulate material and styrene-butadiene-styrene and stearic mixture and add fusion in the twin screw extruder, add step (1) gained modified plant fibers again, extruding pelletization; (5) compression molding: step (4) gained wood is moulded composite granule join in the mould, the control rate of heating is 8 ℃/min, be warmed up to 185 ℃, keep 8min, be pressurized to 10MPa again, and keep 15min, under molding pressure, naturally cool to room temperature then, die sinking, cut, obtain wood plastic product.For the ease of the demoulding, post one deck polytetrafluoroethylene film at mould inner wall.
Present embodiment wood powder polystyrene plastic matrix material 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.The result is: tensile strength is 21MPa, and elongation at break is up to 32%, and bending strength reaches 38MPa, and the I-zod resistance to impact shock reaches 23KJ/m
2
Claims (2)
1. environment protection plant fibre wood plastic composite, it is characterized in that, by the base-material vegetable fibre, waste and old polystyrene plastics reclaims pellet and styrene-butadiene-styrene and auxiliary agent silane coupling agent and stearic acid is composite makes, the weight proportion of vegetable fibre in base-material is 50～90wt%, it is 5～40 wt% that waste and old polystyrene plastics reclaims the weight proportion of pellet in base-material, the weight proportion of styrene-butadiene-styrene in base-material is 5～10wt%, auxiliary agent silane coupling agent consumption is 1～10 wt % of vegetable fibre, and stearic content is the 2-5 wt% of vegetable fibre; Its preparation method may further comprise the steps:
(1) vegetable fibre pre-treatment: the wood working tankage or/and rice husk is made the vegetable fibre powder of 180-300 μ m with shredder, are put into air dry oven and be dried to water ratio less than 5% under 90-105 ℃; The vegetable fibre powder that drying is good is put into high mixer, adds silane coupling agent, mixed 5-8 minute, and discharging, standby; (2) reclaim the preparation of polystyrene plastic pellet: after the waste and old polystyrene plastics that reclaims is ground into 20-30 purpose powder with plastic crusher, with the clear water washing, extruding pelletization and dry in forcing machine then; (3) step (2) gained waste and old polystyrene plastics is reclaimed particulate material and styrene-butadiene-styrene and stearic acid and put into high mixer, adjusting rotating speed is 35-45r/min, and temperature is 4-6 ℃, mixed 8-10 minute, and discharging, standby; (4) extruding pelletization: step (1) gained modified plant fibers and step (3) gained waste and old polystyrene plastics are reclaimed particulate material pour vegetable fibre pressure loading hopper and plastics loading hopper respectively into styrene-butadiene-styrene and stearic mixture, earlier waste and old polystyrene plastics is reclaimed particulate material and styrene-butadiene-styrene and stearic mixture and add fusion in the twin screw extruder, add step (1) gained modified plant fibers again, extruding pelletization; (5) compression molding: step (4) gained pellet is joined in the mould, the control rate of heating is 7-9 ℃/min, be warmed up to 180-190 ℃, keep 7-9min, be pressurized to 9-11MPa again, and keep 14-16min, under molding pressure, naturally cool to room temperature then, die sinking, cut, obtain wood plastic product.
2. environment protection plant fibre wood plastic composite according to claim 1 is characterized in that, described vegetable fibre is that wood powder is or/and powdered rice hulls.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2010105234799A CN101985527B (en) | 2010-10-29 | 2010-10-29 | Environment-friendly plant fiber wood-plastic composite material and preparation method thereof |
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| CN2010105234799A CN101985527B (en) | 2010-10-29 | 2010-10-29 | Environment-friendly plant fiber wood-plastic composite material and preparation method thereof |
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| Publication Number | Publication Date |
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| CN101985527A CN101985527A (en) | 2011-03-16 |
| CN101985527B true CN101985527B (en) | 2011-11-02 |
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102423907A (en) * | 2011-11-03 | 2012-04-25 | 李发中 | Process for recycling rosin packaging bags |
| CN103183872A (en) * | 2011-12-29 | 2013-07-03 | 周永固 | Environment-friendly plastic wood composite plate and preparation method thereof |
| CN105348837A (en) * | 2015-11-13 | 2016-02-24 | 安徽广源科技发展有限公司 | A method of preparing a high-performance wood plastic composite by utilization of waste polystyrene |
| CN105348664A (en) * | 2015-11-13 | 2016-02-24 | 安徽广源科技发展有限公司 | A preparing method of a rice hull powder/waste polystyrene wood-plastic composite material |
| CN105348840B (en) * | 2015-12-14 | 2018-05-18 | 湖南工业大学 | A kind of Poplar Powder based biomass composite material and preparation method thereof |
| CN106273302A (en) * | 2016-08-23 | 2017-01-04 | 张海 | A kind of preparation method of high-performance wood-plastic composite material |
| CN106589649A (en) * | 2016-12-20 | 2017-04-26 | 长春远洋特种工业材料有限公司 | Thermoplastic composite and preparation method thereof |
| CN106589648A (en) * | 2016-12-20 | 2017-04-26 | 长春远洋特种工业材料有限公司 | Thermoplastic composite material and preparation method thereof |
| CN106589650A (en) * | 2016-12-27 | 2017-04-26 | 郑州源冉生物技术有限公司 | Fine-performance plastic material and preparation method thereof |
| CN109517403A (en) * | 2018-11-30 | 2019-03-26 | 成都其其小数科技有限公司 | A method of preparing inexpensive anticorrosive mildewproof wood-plastic clad plate |
| TWI818736B (en) * | 2022-09-20 | 2023-10-11 | 莊承翰 | Plastic composite material and preparation method thereof |
Citations (3)
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|---|---|---|---|---|
| CN1324884A (en) * | 2001-06-09 | 2001-12-05 | 高界平 | Method of preparing composite material with waste plastics |
| CN101698749A (en) * | 2009-11-03 | 2010-04-28 | 北京林业大学 | Wood-plastic composite material and prepration method thereof |
| CN101747644A (en) * | 2008-12-16 | 2010-06-23 | 金发科技股份有限公司 | Plant powder modified thermoplastic wood-plastic composite and preparation method and application |
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2010
- 2010-10-29 CN CN2010105234799A patent/CN101985527B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1324884A (en) * | 2001-06-09 | 2001-12-05 | 高界平 | Method of preparing composite material with waste plastics |
| CN101747644A (en) * | 2008-12-16 | 2010-06-23 | 金发科技股份有限公司 | Plant powder modified thermoplastic wood-plastic composite and preparation method and application |
| CN101698749A (en) * | 2009-11-03 | 2010-04-28 | 北京林业大学 | Wood-plastic composite material and prepration method thereof |
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