CN102731928A - Plant fiber-PVC composite material and preparation method thereof - Google Patents
Plant fiber-PVC composite material and preparation method thereof Download PDFInfo
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- CN102731928A CN102731928A CN2012101971738A CN201210197173A CN102731928A CN 102731928 A CN102731928 A CN 102731928A CN 2012101971738 A CN2012101971738 A CN 2012101971738A CN 201210197173 A CN201210197173 A CN 201210197173A CN 102731928 A CN102731928 A CN 102731928A
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Abstract
The invention discloses a plant fiber-PVC composite material, which includes, by weight: 100 parts of PVC fine particle powder, 60 parts of straw fiber powder, 10-20 parts of an assistant, 10-20 parts of a maleic anhydride grafted compatilizer, and 5 parts of an antioxidant. The composite material of the invention has the beneficial effects that: the employment of the maleic anhydride grafted compatilizer to replace a silane coupling agent and a resin compatilizer can save a raw material blending process, and the mechanical properties of products are obviously enhanced compared with products of the prior art adopting a coupling agent and a compatilizer. The invention develops a plant fiber-PVC nano-composite material that can degrade crop straws, bamboo shoot shells and the like. While reducing the cost and increasing the benefits, the composite material of the invention realizes high quality utilization of plant fiber, and helps to solve the problem of environmental pollution.
Description
Technical field
The present invention relates to a kind of vegetable fibre and PVC matrix material and preparation method thereof.
Background technology
Stalk is the general name of ripe farm crop cauline leaf (fringe) part.Be often referred to wheat, paddy rice, corn, potato class, oil plant, cotton, sugarcane and other farm crop remainder behind the results seed.The photosynthetic product of farm crop has over half being present in the stalk, and stalk is rich in nitrogen, phosphorus, potassium, calcium, magnesium and organic matter etc., is a kind of multiduty reproducible Biological resources that have, and stalk also is a kind of feed.Characteristics are group fibre contents high (30%-40%), and contain xylogen etc.
China seldom utilizes stalk at present, is basically to wait until that after the wheat maturation, unnecessary stalk big area is burned, and causes the air severe contamination.And China is main in the world grain big country, if the total amount of stalk good use in addition is a waste greatly of china natural resources.
Domestic wood plastic composite is main raw material with the wood powder, PE, PP, PVC are carried out compound, like CN1482166A, CN1445285A, CN1513918A etc.Also have some research staff proposed the bamboo shoot case fibre of similar stalk and PVC are carried out compound, like disclosed a kind of bamboo shoot case fibre PVC matrix material of C N 101885884A and preparation method thereof.But adopted coupling agent and compatilizer in this method simultaneously, allocating technology is complicated, and cost is high, and the proportioning that needs two kinds of auxiliary agents of debugging to be to find best embodiment, and technology difficulty is big.
Summary of the invention
The purpose of this invention is to provide a kind of stalk fibre and PVC matrix material and preparation method thereof; Solve in existing stalk fibre and the PVC Composite Preparation process; Adopted coupling agent and compatilizer, allocating technology is complicated, and cost is high; And the proportioning that needs two kinds of auxiliary agents of debugging is to find best embodiment, the problem that technology difficulty is big.
The objective of the invention is to realize through following technical scheme:
A kind of stalk fibre and PVC matrix material comprise 5 parts in 60 parts in 100 parts of PVC fine-grained powder, stalk fibre powder, auxiliary agent 10-20 part, maleic anhydride graft compatilizer 10-20 part, oxidation inhibitor according to weight ratio.
Said stalk fibre particulate maximum particle diameter is at least 20 orders, and water cut is no more than 5%.
Said auxiliary agent is selected paraffin, lime carbonate, Calcium hydrogen carbonate or talcum powder.
Said oxidation inhibitor is selected from lead stearate, dibasic lead stearate or tribasic lead stearate.
The preparation method of stalk fibre and PVC matrix material comprises the pre-treatment of stalk fibre powder and mixing, and the pre-treatment of said stalk fibre powder is meant, under the faintly acid condition, with the maleic anhydride graft compatilizer physical mixed of stalk fibre powder and proportional quantity; The described mixing PVC fine-grained powder of proportional quantity, pretreated stalk fibre powder, maleic anhydride graft compatilizer, oxidation inhibitor and the present high speed kneader of auxiliary agent of being meant disperseed 5-10 minute under rotating speed 1000-1500rpm, temperature 50-60 ℃ condition; Then through double roll mill in 150-180 ℃ mixing 10-20 minute down, perhaps under temperature 150-180 ℃, extrude through twin screw extruder.
Said mild acid conditions is meant; The organic acid soln that does not have oxidisability is sprayed onto uniformly on the mixture of stalk fibre powder and maleic anhydride grafted compatilizer; The mixture of stalk fibre powder and maleic anhydride grafted compatilizer and the weight proportion of weakly acid soln are 5: 1, and the acidity of weakly acid soln requires in the pH value 6-6.5 scope.Said organic acid soln is selected from any one or the multiple mixing in acetic acid, tartaric acid, lactic acid, the Hydrocerol A.
The invention has the beneficial effects as follows, adopt the maleic anhydride graft compatilizer to replace silane coupling agent and resin compatible agent, can the conservation allocating technology, and mechanical performance of products will have obvious lifting than the product of existing process using coupling agent and compatilizer.The present invention has developed a kind of degradable agricultural crop straw vegetable fibre/PVC nano composite material, in the time of cost efficiency, has realized the high materialization utilization to vegetable fibre, helps to solve problem of environmental pollution.
Embodiment
Embodiment one
A kind of vegetable fibre and PVC matrix material comprise 100 parts of PVC fine-grained powder, 60 parts in bamboo shoot case fibre powder, 10 parts of auxiliary agents, 10 parts of maleic anhydride graft compatilizers, 5 parts in oxidation inhibitor according to weight ratio.
Embodiment two
A kind of vegetable fibre and PVC matrix material comprise 20 parts of 20 parts of 60 parts in 100 parts of PVC fine-grained powder, stalk fibre powder, auxiliary agents, maleic anhydride graft compatilizers, 5 parts in oxidation inhibitor according to weight ratio.
Embodiment three
A kind of vegetable fibre and PVC matrix material comprise 15 parts of 15 parts of 60 parts in 100 parts of PVC fine-grained powder, stalk fibre powder, auxiliary agents, maleic anhydride graft compatilizers, 5 parts in oxidation inhibitor according to weight ratio.
Embodiment four
A kind of vegetable fibre and PVC matrix material comprise 20 parts of 10 parts of 60 parts in 100 parts of PVC fine-grained powder, stalk fibre powder, auxiliary agents, maleic anhydride graft compatilizers, 5 parts in oxidation inhibitor according to weight ratio.
Embodiment five
A kind of vegetable fibre and PVC matrix material comprise 10 parts of 20 parts of 60 parts in 100 parts of PVC fine-grained powder, stalk fibre powder, auxiliary agents, maleic anhydride graft compatilizers, 5 parts in oxidation inhibitor according to weight ratio.
Embodiment six
A kind of vegetable fibre and PVC matrix material comprise 18 parts of 12 parts of 60 parts in 100 parts of PVC fine-grained powder, stalk fibre powder, auxiliary agents, maleic anhydride graft compatilizers, 5 parts in oxidation inhibitor according to weight ratio.
Embodiment seven
A kind of vegetable fibre and PVC matrix material comprise 12 parts of 18 parts of 60 parts in 100 parts of PVC fine-grained powder, stalk fibre powder, auxiliary agents, maleic anhydride graft compatilizers, 5 parts in oxidation inhibitor according to weight ratio.
Embodiment eight
A kind of vegetable fibre and PVC matrix material comprise 20 parts of 15 parts of 60 parts in 100 parts of PVC fine-grained powder, stalk fibre powder, auxiliary agents, maleic anhydride graft compatilizers, 5 parts in oxidation inhibitor according to weight ratio.
Embodiment nine
A kind of vegetable fibre and PVC matrix material comprise 15 parts of 20 parts of 60 parts in 100 parts of PVC fine-grained powder, stalk fibre powder, auxiliary agents, maleic anhydride graft compatilizers, 5 parts in oxidation inhibitor according to weight ratio.
Embodiment ten
A kind of vegetable fibre and PVC matrix material comprise 15 parts of 10 parts of 60 parts in 100 parts of PVC fine-grained powder, stalk fibre powder, auxiliary agents, maleic anhydride graft compatilizers, 5 parts in oxidation inhibitor according to weight ratio.
Embodiment 11
A kind of vegetable fibre and PVC matrix material comprise 10 parts of 15 parts of 60 parts in 100 parts of PVC fine-grained powder, stalk fibre powder, auxiliary agents, maleic anhydride graft compatilizers, 5 parts in oxidation inhibitor according to weight ratio.
Among the embodiment one to embodiment 11, said stalk fibre particulate maximum particle diameter is at least 20 orders, and water cut is no more than 5%.
Said auxiliary agent is selected paraffin, lime carbonate, Calcium hydrogen carbonate or talcum powder.
Said oxidation inhibitor is selected from lead stearate, dibasic lead stearate or tribasic lead stearate.
The preparation method of stalk fibre and PVC matrix material comprises the pre-treatment of stalk fibre powder and mixing, and the pre-treatment of said stalk fibre powder is meant, under the faintly acid condition, with the maleic anhydride graft compatilizer physical mixed of stalk fibre powder and proportional quantity; The described mixing PVC fine-grained powder of proportional quantity, pretreated stalk fibre powder, maleic anhydride graft compatilizer, oxidation inhibitor and the present high speed kneader of auxiliary agent of being meant disperseed 5-10 minute under rotating speed 1000-1500rpm, temperature 50-60 ℃ condition; Then through double roll mill in 150-180 ℃ mixing 10-20 minute down, perhaps under temperature 150-180 ℃, extrude through twin screw extruder.
Said mild acid conditions is meant; The organic acid soln that does not have oxidisability is sprayed onto uniformly on the mixture of stalk fibre powder and maleic anhydride grafted compatilizer; The mixture of stalk fibre powder and maleic anhydride grafted compatilizer and the weight proportion of weakly acid soln are 5: 1, and the acidity of weakly acid soln requires in the pH value 6-6.5 scope.Said organic acid soln is selected from any one or the multiple mixing in acetic acid, tartaric acid, lactic acid, the Hydrocerol A.
Claims (7)
1. vegetable fibre and PVC matrix material comprise 5 parts in 60 parts in 100 parts of PVC fine-grained powder, stalk fibre powder, auxiliary agent 10-20 part, maleic anhydride graft compatilizer 10-20 part, oxidation inhibitor according to weight ratio.
2. vegetable fibre and PVC matrix material according to claim 1 is characterized in that the maximum particle diameter of said plant fiber particle is at least 20 orders, and water cut is no more than 5%.
3. vegetable fibre and PVC matrix material according to claim 1 is characterized in that, said auxiliary agent is selected paraffin, lime carbonate, Calcium hydrogen carbonate or talcum powder.
4. vegetable fibre and PVC matrix material according to claim 1 is characterized in that said oxidation inhibitor is selected from lead stearate, dibasic lead stearate or tribasic lead stearate.
5. the preparation method of vegetable fibre and PVC matrix material; Comprise the pre-treatment of stalk fibre powder and mixing; The pre-treatment of said stalk fibre powder is meant, under the faintly acid condition, with the maleic anhydride graft compatilizer physical mixed of stalk fibre powder and proportional quantity; The described mixing PVC fine-grained powder of proportional quantity, pretreated stalk fibre powder, maleic anhydride graft compatilizer, oxidation inhibitor and the present high speed kneader of auxiliary agent of being meant disperseed 5-10 minute under rotating speed 1000-1500rpm, temperature 50-60 ℃ condition; Then through double roll mill in 150-180 ℃ mixing 10-20 minute down, perhaps under temperature 150-180 ℃, extrude through twin screw extruder.
6. like the preparation method of said vegetable fibre of claim 5 and PVC matrix material, it is characterized in that,
Said mild acid conditions is meant; The organic acid soln that does not have oxidisability is sprayed onto uniformly on the mixture of stalk fibre powder and maleic anhydride grafted compatilizer; The mixture of stalk fibre powder and maleic anhydride grafted compatilizer and the weight proportion of weakly acid soln are 5: 1, and the acidity of weakly acid soln requires in the pH value 6-6.5 scope.
7. like the preparation method of said vegetable fibre of claim 6 and PVC matrix material, it is characterized in that said organic acid soln is selected from any one or the multiple mixing in acetic acid, tartaric acid, lactic acid, the Hydrocerol A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101971738A CN102731928A (en) | 2012-06-15 | 2012-06-15 | Plant fiber-PVC composite material and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012101971738A CN102731928A (en) | 2012-06-15 | 2012-06-15 | Plant fiber-PVC composite material and preparation method thereof |
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| CN2012101971738A Pending CN102731928A (en) | 2012-06-15 | 2012-06-15 | Plant fiber-PVC composite material and preparation method thereof |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1338983A (en) * | 1999-11-01 | 2002-03-06 | 艾伯塔研究委员会公司 | Acid treatment of non-woody lignocellulosic material |
| CN101143952A (en) * | 2007-09-12 | 2008-03-19 | 东北林业大学 | Flame-proof smoke-inhibiting wood-plastic composite material |
| CN101333321A (en) * | 2008-07-31 | 2008-12-31 | 福建师范大学 | Method for preparing PVC wood-plastic composite material using graft copolymer as compatilizer |
-
2012
- 2012-06-15 CN CN2012101971738A patent/CN102731928A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1338983A (en) * | 1999-11-01 | 2002-03-06 | 艾伯塔研究委员会公司 | Acid treatment of non-woody lignocellulosic material |
| CN101143952A (en) * | 2007-09-12 | 2008-03-19 | 东北林业大学 | Flame-proof smoke-inhibiting wood-plastic composite material |
| CN101333321A (en) * | 2008-07-31 | 2008-12-31 | 福建师范大学 | Method for preparing PVC wood-plastic composite material using graft copolymer as compatilizer |
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Application publication date: 20121017 |