CN106009173A - PE-based wood-plastic composite material - Google Patents

PE-based wood-plastic composite material Download PDF

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Publication number
CN106009173A
CN106009173A CN201610481039.9A CN201610481039A CN106009173A CN 106009173 A CN106009173 A CN 106009173A CN 201610481039 A CN201610481039 A CN 201610481039A CN 106009173 A CN106009173 A CN 106009173A
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CN
China
Prior art keywords
plastic composite
composite material
maleic anhydride
parts
stabilizer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610481039.9A
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Chinese (zh)
Inventor
严秀芹
陆绍荣
卢李勤
曾岑
卢秋宇
谢超
韦明
罗崇禧
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GUILIN SHUKANG BUILDING MATERIAL CO Ltd
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GUILIN SHUKANG BUILDING MATERIAL CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by GUILIN SHUKANG BUILDING MATERIAL CO Ltd filed Critical GUILIN SHUKANG BUILDING MATERIAL CO Ltd
Priority to CN201610481039.9A priority Critical patent/CN106009173A/en
Publication of CN106009173A publication Critical patent/CN106009173A/en
Pending legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/06—Polyethene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
    • C08J9/10—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
    • C08J9/102—Azo-compounds
    • C08J9/103—Azodicarbonamide
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2203/00—Foams characterized by the expanding agent
    • C08J2203/04—N2 releasing, ex azodicarbonamide or nitroso compound
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2323/04—Homopolymers or copolymers of ethene
    • C08J2323/06—Polyethene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2497/00—Characterised by the use of lignin-containing materials
    • C08J2497/02—Lignocellulosic material, e.g. wood, straw or bagasse
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/011—Nanostructured additives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

The invention discloses a PE-based wood-plastic composite material. The PE-based wood-plastic composite material is mainly prepared from, by weight, 20-30 parts of straw powder, 60-80 parts of polyethylene, 1-2 parts of stabilizer, 1-2 parts of plasticizer, 1-2 parts of lubricant, 1-2 parts of activator, 0.3-1 part of anti-oxidant, 1-2 parts of maleic anhydride, 8-15 parts of maleic anhydride grafted polyethylene, 12-18 parts of azodicarbonamide, 10-15 parts of ethylene-vinyl acetate copolymer and 4-8 parts of nano calcium carbonate. Maleic anhydride serves as compatilizer, maleic anhydride grafted polyethylene serves as coupling agent, azodicarbonamide serves as foaming agent, ethylene-vinyl acetate copolymer serves as modifying agent, the raw materials are matched based on a certain dosage ratio and combined with components of ordinary wood-plastic materials, and then the PE-based wood-plastic composite material low in specific gravity and high in mechanical property is obtained.

Description

A kind of PE base wood-plastic composite material
Technical field
The present invention relates to a kind of wood plastic composite, be specifically related to a kind of PE base wood-plastic composite material.
Background technology
Wood plastic composite is mainly by former materials such as the vegetative fibers such as plastics, powder of straw or bamboo powder, coupling agent and additives Expect according to certain ratio composition.Wood plastic composite application prospect is very extensive, has been widely used in daily life Many fields, such as automobile, build and the industry such as packaging is applied widely.For plastics, wood plastic composite Some physical and mechanical propertiess, as the mechanical property such as ductility, impact strength has declined, add wood plastic composite The factors such as the fragility of itself all limit it and extensively apply.
Foam wood/plastic composite material, is to add appropriate foaming agent, nucleator, work on the basis of wood plastic composite Agents etc. carry out foaming and obtaining, and have light specific gravity and the good feature such as sound insulation, heat insulation, sound absorption.Foam wood/plastic composite material Birth, alleviate the usage amount of plastics and timber, environmental pollution and the big pollution problem of " white pollution " two largely very Have been resolved well.But the mechanical property of the foam wood/plastic composite material of existing routine is (with unexpanded wood plastic composite phase Than) poor.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of PE base wood and plastic composite using powder of straw as Plant fiber Material, this density of material is low and mechanical property good.
PE base wood-plastic composite material of the present invention, is mainly made up of the component of following weight proportioning:
Powder of straw 20-30, polyethylene 60-80, stabilizer 1-2, plasticizer 1-2, lubricant 1-2, activator 1-2, antioxygen Agent 0.3-1, maleic anhydride 1-2, maleic anhydride grafted polyethylene 8-15, azodicarbonamide 12-18, ethene-vinyl acetate are common Polymers 10-15, nano-calcium carbonate 4-8.
In above-mentioned PE base wood-plastic composite material, the weight proportion of each component is preferably:
Powder of straw 25-30, polyethylene 70-80, stabilizer 1-2, plasticizer 1-2, lubricant 1-2, activator 1-2, antioxygen Agent 0.5-1, maleic anhydride 1-2, maleic anhydride grafted polyethylene 8-12, azodicarbonamide 15-18, ethene-vinyl acetate are common Polymers 12-15, nano-calcium carbonate 5-8.
In above-mentioned PE base wood-plastic composite material the optimum weight of each component join for:
Powder of straw 30, polyethylene 70, stabilizer 1, plasticizer 2, lubricant 1, activator 1, antioxidant 0.8, maleic anhydride 2, maleic anhydride grafted polyethylene 12, azodicarbonamide 18, ethylene-vinyl acetate copolymer 12, nano-calcium carbonate 6.
In technical scheme of the present invention, described stabilizer can be organic tin stabilizer, calcium zinc stabilizer or lead salt Complex stabilizer.
In technical scheme of the present invention, described plasticizer can be selected from dioctyl phthalate, O-phthalic One or more combination in dibutyl phthalate and epoxy soybean oil.
In technical scheme of the present invention, described lubricant can be selected from stearic acid, lead stearate, barium stearate and A kind of or the most two or more combination in zinc stearate.
In technical scheme of the present invention, described antioxidant can be 2,6 ditertiary butyl p cresol or four [first Base-β-(3,5-di-tert-butyl-hydroxy phenyl) propionic ester] pentaerythritol ester.
In technical scheme of the present invention, described activator is preferably zinc oxide.
In technical scheme of the present invention, the particle diameter of described powder of straw is preferably 80-200 mesh.
The preparation method of PE base wood-plastic composite material of the present invention is same as the prior art, preferably can enter as follows Row preparation:
Powder of straw is placed in high-speed mixer, stirring 3-6min (now material temperature reaches 100 DEG C-120 DEG C), opens at a high speed Hopper cover on mixer, allows moisture content contained in powder of straw distribute, when temperature of charge is down to 45-55 DEG C, adds Malaysia Anhydride grafted lldpe and a small amount of lubricant, mix and blend 1-2min, when temperature of charge is down to 55-65 DEG C, add polyethylene And stabilizer, mix and blend 1-2min；When temperature of charge is down to 65-75 DEG C, add the lubricant of surplus, antioxidant, activation Agent, ethylene-vinyl acetate copolymer and maleic anhydride mix and blend 2-4min, add when temperature of charge is down to 75-85 DEG C and increase Mould agent mix and blend 2-3min, when temperature of charge is down to 85-95 DEG C, add azodicarbonamide mix and blend 2-5min, treat thing Material temperature degree is down to when 95-105 DEG C add nano-calcium carbonate, mixes to temperature of charge and reaches to stop mixed at high speed when 120 DEG C, Being discharged by material, single screw rod sent into by gained premix material or dual-screw pelletizer carries out pelletize (processing temperature is 140-170 DEG C)； Finally by pellet by injector injection moulding.
Compared with prior art, the present invention uses maleic anhydride as compatilizer, maleic anhydride grafted polyethylene as idol Connection agent, azodicarbonamide, are tied with the proportioning of specific consumption as modifying agent as foaming agent, ethylene-vinyl acetate copolymer Close the component of conventional Wood-plastic material, with the PE base wood-plastic composite material obtaining light specific gravity, mechanical property is good.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described in further detail, to be more fully understood that present disclosure, but The present invention is not limited to following example.
Following embodiment all uses following method to be processed:
Powder of straw is placed in high-speed mixer, stirs 5min, open the hopper cover on high-speed mixer, allow in powder of straw Contained moisture content distributes, and when temperature of charge is down to 50 DEG C, adds maleic anhydride grafted polyethylene and the 1/ of lubricant total amount 4, mix and blend 2min, when temperature of charge is down to 60 DEG C, add polyethylene and stabilizer, mix and blend 2min；Treat material temperature When degree is down to 70 DEG C, add the lubricant of surplus, antioxidant, activator, ethylene-vinyl acetate copolymer and maleic anhydride mixing Stirring 4min, adds plasticizer mix and blend 3min when temperature of charge is down to 80 DEG C, adds when temperature of charge is down to 85 DEG C Azodicarbonamide mix and blend 5min, adds nano-calcium carbonate when temperature of charge is down to 100 DEG C, mixes to material temperature Degree reaches to stop mixed at high speed when 120 DEG C, is discharged by material, and single screw rod sent into by gained premix material or dual-screw pelletizer is carried out Pelletize (processing temperature is 140-170 DEG C)；Finally by pellet, by injector injection moulding, (during injection moulding, each parameter is with existing Technology is identical), the sample of employing is GB GB/T 1040.2-2006, obtains product sample.
Embodiment 1
Formula according to embodiment in table 1 below 1 weighs each component, prepares sample as stated above.
Embodiment 2
Formula according to embodiment in table 1 below 2 weighs each component, prepares sample as stated above.
Embodiment 3
Formula according to embodiment in table 1 below 3 weighs each component, prepares sample as stated above.
Embodiment 4
Formula according to embodiment in table 1 below 4 weighs each component, prepares sample as stated above.
Table 1:
The density of sample prepared according to embodiment 1-4, bending strength, hot strength, impact strength are tested, knot The most as described in Table 2:
Table 2:
Note: the method for testing of (1) density is: sample mass uses electronic scale (precision is one thousandth), with tensile sample For test object, weighing up multiple sample mass and seek its meansigma methods, volume is obtained by Pro/E three-dimensional software Modeling Calculation, presses State formula calculate density of material:
ρ=M/V
In formula:
ρ density of material (g/cm3)
The quality (g) of M material；
Volume (the cm of V material3)。
(2) method of testing of bending strength is: on universal testing machine, controls pressure head and moves with 2.0mm/min speed, makes Sample bends.There is the maximum load value destroyed in record sample, then according to below equation calculates bending strength.
α = 3 P L 2 bd 2
In formula: P load value (N)；
The span (40mm) of L sample；
The width (mm) of b sample；
The thickness (mm) of d sample.

Claims (8)

1. a PE base wood-plastic composite material, it is characterised in that: it is mainly made up of the component of following weight proportioning:
Powder of straw 20-30, polyethylene 60-80, stabilizer 1-2, plasticizer 1-2, lubricant 1-2, activator 1-2, antioxidant 0.3-1, maleic anhydride 1-2, maleic anhydride grafted polyethylene 8-15, azodicarbonamide 12-18, ethene-vinyl acetate copolymerization Thing 10-15, nano-calcium carbonate 4-8.
PE base wood-plastic composite material the most according to claim 1, it is characterised in that: the weight proportion of each component is:
Powder of straw 25-30, polyethylene 70-80, stabilizer 1-2, plasticizer 1-2, lubricant 1-2, activator 1-2, antioxidant 0.5-1, maleic anhydride 1-2, maleic anhydride grafted polyethylene 8-12, azodicarbonamide 15-18, ethene-vinyl acetate copolymerization Thing 12-15, nano-calcium carbonate 5-8.
PE base wood-plastic composite material the most according to claim 1, it is characterised in that: the weight proportion of each component is:
Powder of straw 30, polyethylene 70, stabilizer 1, plasticizer 2, lubricant 1, activator 1, antioxidant 0.8, maleic anhydride 2, horse Maleic anhydride grafted polyethylene 12, azodicarbonamide 18, ethylene-vinyl acetate copolymer 12, nano-calcium carbonate 6.
4. according to the PE base wood-plastic composite material according to any one of claim 1-3, it is characterised in that: described stabilizer is Organic tin stabilizer, calcium zinc stabilizer or lead salt complex stabilizer.
5. according to the PE base wood-plastic composite material according to any one of claim 1-3, it is characterised in that: described plasticizer is One or more combination in dioctyl phthalate, dibutyl phthalate and epoxy soybean oil.
6. according to the PE base wood-plastic composite material according to any one of claim 1-3, it is characterised in that: described lubricant is A kind of or the most two or more combination in stearic acid, lead stearate, barium stearate and zinc stearate.
7. according to the PE base wood-plastic composite material according to any one of claim 1-3, it is characterised in that: described antioxidant is 2,6 ditertiary butyl p cresol or four [methyl-β-(3,5-di-tert-butyl-hydroxy phenyl) propionic ester] pentaerythritol ester.
8. according to the PE base wood-plastic composite material according to any one of claim 1-3, it is characterised in that: described activator is Zinc oxide.
CN201610481039.9A 2016-06-24 2016-06-24 PE-based wood-plastic composite material Pending CN106009173A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109370005A (en) * 2018-10-08 2019-02-22 南京聚隆科技股份有限公司 One kind can silk-screen blow molding fretting map tool box and preparation method thereof
CN113087986A (en) * 2020-01-08 2021-07-09 辽宁东盛塑业有限公司 EVA (ethylene-vinyl acetate copolymer) modified straw/LDPE (low-density polyethylene) wood-plastic composite material and preparation method thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1621440A (en) * 2004-10-21 2005-06-01 俞立群 Plastic lignified board and its making method
JP2006282906A (en) * 2005-04-01 2006-10-19 Sekisui House Ltd Manufacturing method of extruded and foamed molding
CN102838816A (en) * 2012-09-11 2012-12-26 桂林舒康建材有限公司 New macromolecule fiber composite material
CN104830085A (en) * 2015-05-25 2015-08-12 吴江华诚复合材料科技有限公司 Light environment-friendly wood-plastic composite material
CN104861250A (en) * 2014-12-23 2015-08-26 王玉燕 Flame retardant enhancing simulation wood and preparation method thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1621440A (en) * 2004-10-21 2005-06-01 俞立群 Plastic lignified board and its making method
JP2006282906A (en) * 2005-04-01 2006-10-19 Sekisui House Ltd Manufacturing method of extruded and foamed molding
CN102838816A (en) * 2012-09-11 2012-12-26 桂林舒康建材有限公司 New macromolecule fiber composite material
CN104861250A (en) * 2014-12-23 2015-08-26 王玉燕 Flame retardant enhancing simulation wood and preparation method thereof
CN104830085A (en) * 2015-05-25 2015-08-12 吴江华诚复合材料科技有限公司 Light environment-friendly wood-plastic composite material

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109370005A (en) * 2018-10-08 2019-02-22 南京聚隆科技股份有限公司 One kind can silk-screen blow molding fretting map tool box and preparation method thereof
CN113087986A (en) * 2020-01-08 2021-07-09 辽宁东盛塑业有限公司 EVA (ethylene-vinyl acetate copolymer) modified straw/LDPE (low-density polyethylene) wood-plastic composite material and preparation method thereof

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Application publication date: 20161012