CN101967295B - Wood plastic starch composite material and preparation method thereof - Google Patents
Wood plastic starch composite material and preparation method thereof Download PDFInfo
- Publication number
- CN101967295B CN101967295B CN2010105189789A CN201010518978A CN101967295B CN 101967295 B CN101967295 B CN 101967295B CN 2010105189789 A CN2010105189789 A CN 2010105189789A CN 201010518978 A CN201010518978 A CN 201010518978A CN 101967295 B CN101967295 B CN 101967295B
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- CN
- China
- Prior art keywords
- starch
- paper fiber
- fluting board
- content
- board paper
- Prior art date
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Classifications
-
- 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
Abstract
The invention relates to a wood plastic starch composite material and a preparation method thereof. The wood plastic starch composite material is prepared by mixing base materials, an additive aluminium titanium composite coupling agent, glycerol, an antioxidant 1,010 and a lubricant zinc stearate, wherein the base materials comprise 40 to 65 weight percent of recycled corrugated paper fiber, 10 to 40 weight percent of low-density polyvinyl resin and 10 to 30 weight percent of starch; the using amount of the additive aluminium titanium composite coupling agent is 1 to 6 weight percent of the recycled corrugated paper fiber content; the glycerol content is 5 to 15 weight percent of the starch content; the antioxidant 1,010 content is 0.5 to 2 percent of the total weight of the base materials; and the weight of the lubricant zinc stearate is 1 to 4 percent of the total weight of the base materials. The wood plastic starch composite material has high recycled corrugated paper fiber content, low cost, high physical and mechanical strength, high surface finishment, water resistance and chemical corrosion resistance, is susceptible to degradation, and is a new environmentally-friendly wood-plastic product.
Description
Technical field
The present invention relates to a kind of wood and mould starch composite material and preparation method thereof, especially relating to a kind of is that the wood of base-material is moulded starch composite material and preparation method thereof to reclaim fluting board paper fiber, native corn starch and LDPE.
Background technology
The source of plastics is mainly natural oil, and the storage capacity of these energy has certain limit, and plastics very difficult degraded fast under natural condition, is difficult to recycle, thereby causes very big pressure for environment and resource.
Wood plastic composite is cheap, and excellent property is easy to use; Can saw, can dig, can follow closely; Both kept the advantage of timber aspect processing characteristics, and overcome timber again and be not durable and be afraid of the shortcoming of damaging by worms to substitute outward freight wooden package material and laying material; The corrosion resistant builder's temporary shed that also can be used for chemical industry is built, manufacturings such as decorative sheet, floor, passage, stand and foundry pattern bonnet, water pump shell, electrical structure spare.
Yet; Recovery fluting board paper fiber as one of xylon is different with the resin matrix surface property; Both compound tense bonding interface effects are relatively poor; Thereby cause having influenced the popularization and application of this kind matrix material by the reduction of reclaiming the wood plastic composite mechanical property that fluting board paper fiber and resin form.
On the other hand; Because relatively poor consistency and fiber itself between xylon and the resin matrix makes the addition of fiber receive serious limit in the wood plastic composite, at present in the wood plastic composite of suitability for industrialized production; The content of vegetable fibre is 10-25% mostly; This content of vegetable fibre is for the cost that reduces wood plastic composite, and meaning is very not big, and expensive property-modifying additive cost; Make the market value of this matrix material be equivalent to even be higher than general-purpose plastics and solid wood again, thereby restricted the development and the application of wood plastic composite.
Summary of the invention
The objective of the invention is provides a kind of cheap, novel wood-plastic starch composite material of high comprehensive performance and preparation method thereof in order to overcome the above-mentioned defective that existing wood plastic composite exists.。
The objective of the invention is to realize through following technical scheme:
The present invention's wood is moulded starch composite material; Main ingredient comprises that base-material reclaims fluting board paper fiber, ldpe resin and starch; And additive-aluminium titanium composite coupler, glycerine, antioxidant 1010 (i.e. four [methyl-β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic ester] pentaerythritol ester) and lubricant stearic acid zinc; The content of said recovery fluting board paper fiber in base-material is 40-65wt%, and the content of ldpe resin in base-material is 10-40wt%, and the content of starch in base-material is 10-30wt%; Additive-aluminium titanium composite coupler addition is for reclaiming the 1-6 wt % of fluting board paper fibre content; The glycerine addition is the 5-15 wt% of starch content; The antioxidant 1010 addition is the 0.5-2 wt% of base-material gross weight, and lubricant stearic acid zinc addition is the 1-4 wt% of base-material gross weight.
The present invention's wood is moulded the starch composite material preparation method and may further comprise the steps: the pre-treatment of fluting board paper fiber is reclaimed in (1): will reclaim fluting board paper fiber and be ground into 40-120 purpose powder; Use mass concentration to soak 1-8 hour again as the sodium hydroxide solution of 1%-8%; Extremely neutral with the clear water washing then; Be placed on after the drying and use mass concentration that aluminium titanium composite coupler is made into to be immersion in the ethanolic soln of 8-12% (being about to the solution that aluminium titanium composite coupler and ethanol are made into by the mass ratio of 0.8-1.2:10) 1-5 hour; With the paper fiber from the solution of above-mentioned preparation, take out the back in 70-80 ℃ dry to water ratio control 4%, subsequent use; (2) will pass through the pretreated recovery fluting board of step (1) paper fiber and place the high-speed mixer mixing 8-12 minute with additive antioxidant 1010 and lubricant stearic acid zinc; (3) starch, ldpe resin were placed the high-speed mixer mixing 4-6 minute with glycerine; (4) extrusion moulding: set 165-180 ℃ of screw extrusion press temperature; It is viscous liquid that the mixture of step (3) gained starch, ldpe resin and glycerine is placed the screw extrusion press plastifying fusion; Then step (2) gained being reclaimed fluting board paper fiber has become in the plastifying fusion thing of viscous liquid with the mixture adding of relevant auxiliary agent; Under screw acting; Reclaim fluting board paper fiber dust homodisperse, orientation in the plastifying fusion thing, obtain apparent homogeneous, the fluting board paper fiber ldpe resin starch that degree of scatter is higher also contains the compound system of relevant auxiliary agent; The required section bar of the direct extrusion moulding of through port mould again; Perhaps, form wood and mould the starch composite material pellet, more resulting pellet is processed end article through mold pressing or injection molding method through corresponding mouthful mould and dicing machine extruding pelletization.
The staple that reclaims fluting board paper fiber comprises Mierocrystalline cellulose, semicellulose, xylogen, pectin substance, gumminess and non-cellulose sugar, and the non-cellulose composition except that Mierocrystalline cellulose structurally molecular weight is less relatively, and intensity is lower; To improving the mechanical property of matrix material; Effect is little, if but add in the matrix material in the lump, just need use more coupling agent to handle; This will increase cost; And do not have positive effect to improving mechanical property, thus carry out pre-treatment with the sodium hydroxide solution of 1%-8wt% to reclaiming fluting board paper fiber, to remove non-cellulosic impurity.
Ldpe resin is a non-polar material because recovery fluting board paper fiber is strong polarity; Both polar repulsions; Both combine poor in mixing process; After adding coupling agent,, have macromolecular chain compatible or compatible structure on the other hand with ldpe resin because coupling agent contains on the one hand and reclaims the polar group that fluting board paper fiber combines; Thereby between two individual system, form a kind of transition and both are closely linked together, and then improve the content that reclaims fluting board paper fiber in intensity and the matrix material of matrix material.
It is high that wood according to the invention is moulded the starch composite material fibre content, and cost is low, and physical mechanical strength is high, and surface smoothness is good, and water-fast resistance to chemical attack is prone to degraded, and applied range is that a kind of Dai Mudai of environmental protection moulds product innovation.
Embodiment
Below in conjunction with embodiment the present invention is done further elaboration.
Present embodiment wood is moulded the prescription of starch composite material: base-material reclaims fluting board paper fiber 45wt%, ldpe resin 20wt%, W-Gum 35wt%; Additive-aluminium titanium composite coupler weight is for reclaiming the 2wt% of fluting board paper fibre weight; Glycerine is 10 wt % of W-Gum weight; The weight of antioxidant 1010 is 1.5 wt % of base-material gross weight, and lubricant stearic acid zinc weight is the 2.5wt% of base-material gross weight.
Preparation: (1) will reclaim fluting board paper fiber and be ground into 80 purpose powder; Sodium hydroxide solution with 8wt% soaked 10 hours; Extremely neutral with the clear water washing again; Be placed on after the drying in the ethanolic soln that is made into aluminium titanium composite coupler and soaked 3 hours, wash in a pan out the back and dry to water ratio 3.8% in 75 ℃, subsequent use; (2) will be through the pretreated recovery fluting board of step (1) paper fiber and antioxidant 1010, lubricant stearic acid zinc) place high-speed mixer to mix 10 minutes; (3) place high-speed mixer to mix 5 minutes with glycerine starch, ldpe resin; (4) extrusion moulding: set 170 ℃ of screw extrusion press temperature; It is viscous liquid that the mixture of step (3) gained starch, ldpe resin and glycerine is placed the screw extrusion press plastifying fusion; The mixture adding of then step (2) gained being reclaimed fluting board paper fiber and auxiliary agent antioxidant 1010, lubricant stearic acid zinc has become in the plastifying fusion thing of viscous liquid; Under screw acting; Reclaim fluting board paper fiber dust homodisperse, orientation in the plastifying fusion thing, obtain apparent homogeneous, the fluting board paper fiber ldpe resin starch that degree of scatter is higher also contains the compound system of relevant auxiliary agent; The required section bar of the direct extrusion moulding of through port mould again; Perhaps, form wood and mould the starch composite material pellet, more resulting pellet is processed end article through mold pressing or injection molding method through corresponding mouthful mould and dicing machine extruding pelletization.
The wood that obtains is moulded starch composite material carry out Mechanics Performance Testing: 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.Detected result is: tensile strength 29MPa, elongation at break are up to 57%, and bending strength reaches 57MPa, and the I-zod resistance to impact shock reaches 21KJ/m
2
Claims (1)
1. a wood is moulded starch composite material, it is characterized in that, reclaims fluting board paper fiber, ldpe resin and starch by base-material, and additive-aluminium titanium composite coupler, glycerine, antioxidant 1010 and lubricant stearic acid zinc are mixed and process; The content of said recovery fluting board paper fiber in base-material is 40-65wt%, and the content of ldpe resin in base-material is 10-40wt%, and the content of starch in base-material is 10-30wt%; The aluminium titanium composite coupler addition is for reclaiming the 1-6 wt% of fluting board paper fibre content; The glycerine addition is the 5-15wt% of starch content; The antioxidant 1010 addition is the 0.5-2 wt% of base-material gross weight, and lubricant stearic acid zinc addition is the 1-4 wt% of base-material gross weight;
Said wood is moulded the preparation method of starch composite material; May further comprise the steps: the pre-treatment of fluting board paper fiber is reclaimed in (1): will reclaim fluting board paper fiber and be ground into 40-120 purpose powder; Use mass concentration to soak 1-8 hour again as the sodium hydroxide solution of 1%-8%; Extremely neutral with the clear water washing then; Being placed on after the drying and using the mass concentration that aluminium titanium composite coupler is made into is to soak 1-5 hour in the ethanolic soln of 8-12%, with the paper fiber from the solution of above-mentioned preparation, takes out the back in 70-80 ℃ dry to water ratio control 4%, subsequent use; (2) will pass through the pretreated recovery fluting board of step (1) paper fiber and place the high-speed mixer mixing 8-12 minute with additive antioxidant 1010 and lubricant stearic acid zinc; (3) starch, ldpe resin were placed the high-speed mixer mixing 4-6 minute with glycerine; (4) extrusion moulding: set 165-180 ℃ of screw extrusion press temperature; It is viscous liquid that the mixture of step (3) gained starch, ldpe resin and glycerine is placed the screw extrusion press plastifying fusion; Then step (2) gained being reclaimed fluting board paper fiber has become in the plastifying fusion thing of viscous liquid with the mixture adding of relevant auxiliary agent; Under screw acting; Reclaim fluting board paper fiber dust homodisperse, orientation in the plastifying fusion thing, obtain apparent homogeneous, the fluting board paper fiber ldpe resin starch that degree of scatter is higher also contains the compound system of relevant auxiliary agent; The required section bar of the direct extrusion moulding of through port mould again; Perhaps, form wood and mould the starch composite material pellet, more resulting pellet is processed end article through mold pressing or injection molding method through corresponding mouthful mould and dicing machine extruding pelletization.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105189789A CN101967295B (en) | 2010-10-26 | 2010-10-26 | Wood plastic starch composite material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105189789A CN101967295B (en) | 2010-10-26 | 2010-10-26 | Wood plastic starch composite material and preparation method thereof |
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| Publication Number | Publication Date |
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| CN101967295A CN101967295A (en) | 2011-02-09 |
| CN101967295B true CN101967295B (en) | 2012-01-04 |
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| CN2010105189789A Expired - Fee Related CN101967295B (en) | 2010-10-26 | 2010-10-26 | Wood plastic starch composite material and preparation method thereof |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102153804B (en) * | 2011-05-20 | 2013-03-20 | 刘立文 | Modified low-density polyethylene composite material and preparation method of modified low-density polyethylene composite material |
| CN102219952A (en) * | 2011-06-20 | 2011-10-19 | 刘立文 | Calcium sulfate corn starch low-density polyethylene composite material and preparation method thereof |
| CN102276900B (en) * | 2011-07-19 | 2012-10-24 | 林世旺 | Waste paper pulp moulding wood plastic composite material and preparation method thereof |
| CN104059372A (en) * | 2014-06-29 | 2014-09-24 | 柳江县联华纸制品厂 | Degradable packaging bag |
| CN106245394A (en) * | 2016-07-26 | 2016-12-21 | 华南农业大学 | A kind of preparation method of paper powder |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1500828A (en) * | 2002-11-18 | 2004-06-02 | 华昌工贸有限公司 | Polyethylene (PE) plastic-wood panel |
| CN1880376B (en) * | 2006-05-17 | 2010-05-12 | 安徽国风集团有限公司 | Bran powder type thermoplastic wood plastic composite material and its preparing process |
| CN101550278B (en) * | 2009-05-08 | 2011-11-30 | 东莞市贤林橡塑制品有限公司 | Manufacturing method of a regenesis wood plastic compound structures sectional materials |
| CN101570639B (en) * | 2009-06-10 | 2011-04-13 | 东北林业大学 | Flame-retardant wood-plastic composite and preparation method thereof |
| CN101747641B (en) * | 2010-02-05 | 2012-07-04 | 上海国成塑料有限公司 | Polyvinyl wood-plastic composite and method for preparing same |
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Owner name: HUNAN UNIVERSITY OF TECHNOLOGY Free format text: FORMER OWNER: CENG GUANGSHENG Effective date: 20121226 |
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Effective date of registration: 20121226 Address after: 412008 Hunan University of Technology, 88 West Taishan Road, Tianyuan District, Hunan, Zhuzhou Patentee after: Hunan University of Technology Address before: 410008 Hunan province Changsha Kaifu District, Furong Road five five building No. 701 Ling Plaza Patentee before: Zeng Guangsheng |
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Granted publication date: 20120104 Termination date: 20121026 |