CN106117703A - The PE base wood-plastic composite material that a kind of mechanical property is good - Google Patents

The PE base wood-plastic composite material that a kind of mechanical property is good Download PDF

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Publication number
CN106117703A
CN106117703A CN201610471885.2A CN201610471885A CN106117703A CN 106117703 A CN106117703 A CN 106117703A CN 201610471885 A CN201610471885 A CN 201610471885A CN 106117703 A CN106117703 A CN 106117703A
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CN
China
Prior art keywords
plastic composite
composite material
good
mechanical property
maleic anhydride
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
CN201610471885.2A
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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.)
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Publication date
Application filed by GUILIN SHUKANG BUILDING MATERIAL CO Ltd filed Critical GUILIN SHUKANG BUILDING MATERIAL CO Ltd
Priority to CN201610471885.2A priority Critical patent/CN106117703A/en
Publication of CN106117703A publication Critical patent/CN106117703A/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
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • 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)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

The invention discloses the PE base wood-plastic composite material that a kind of mechanical property is good, be mainly made up of the component of following weight proportioning: bamboo powder 20 30, polyethylene 60 80, stabilizer 12, plasticizer 12, lubricant 12, activator 12, antioxidant 0.3 1, maleic anhydride 12, maleic anhydride grafted polyethylene 8 15, azodicarbonamide 12 18, ethylene-vinyl acetate copolymer 10 15, nano-calcium carbonate 48.The present invention use maleic anhydride as compatilizer, maleic anhydride grafted polyethylene as coupling agent, azodicarbonamide as foaming agent, ethylene-vinyl acetate copolymer as modifying agent, the component of conventional Wood-plastic material is combined, with the PE base wood-plastic composite material obtaining light specific gravity, mechanical property is good with the proportioning of specific consumption.

Description

The PE base wood-plastic composite material that a kind of mechanical property is good
Technical field
The present invention relates to a kind of wood plastic composite, be specifically related to the PE base wood-plastic composite material that a kind of mechanical property is good.
Background technology
Wood plastic composite is mainly pressed by raw materials such as the Plant fiber such as plastics, wood powder or bamboo powder, coupling agent and additives According to certain ratio composition.Wood plastic composite application prospect is very extensive, the many being widely used in daily life Field, such as automobile, builds and the industry such as packaging is applied widely.For plastics, the one of wood plastic composite A little physical and mechanical propertiess, as the mechanical property such as ductility, impact strength has declined, add wood plastic composite itself The factor such as fragility 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 the PE base wood-plastic composite material that a kind of mechanical property is good.
The PE base wood-plastic composite material that mechanical property of the present invention is good, mainly by the component system of following weight proportioning Become:
Bamboo powder 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.
In above-mentioned PE base wood-plastic composite material, the weight proportion of each component is preferably:
Bamboo powder 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.
In above-mentioned PE base wood-plastic composite material the optimum weight of each component join for:
Bamboo powder 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:
Bamboo powder is placed in high-speed mixer, stirring 3-6min (now material temperature reaches 100 DEG C-120 DEG C), opens the most mixed Hopper cover on conjunction machine, allows moisture content contained in bamboo powder distribute, when temperature of charge is down to 45-55 DEG C, adds maleic anhydride Grafted polyethylene and a small amount of lubricant, mix and blend 1-2min, when temperature of charge is down to 55-65 DEG C, add polyethylene with steady Determine agent, mix and blend 1-2min；When temperature of charge is down to 65-75 DEG C, add the lubricant of surplus, antioxidant, activator, second Alkene-acetate ethylene copolymer and maleic anhydride mix and blend 2-4min, add plasticizer when temperature of charge is down to 75-85 DEG C and mix Close stirring 2-3min, when temperature of charge is down to 85-95 DEG C, add azodicarbonamide mix and blend 2～5min, treat 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, by thing when 120 DEG C Material is discharged, and 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:
Bamboo powder is placed in high-speed mixer, stirs 5min, open the hopper cover on high-speed mixer, allow in bamboo powder contained Moisture content distribute, when temperature of charge is down to 50 DEG C, add maleic anhydride grafted polyethylene and the 1/4 of lubricant total amount, mixed Close stirring 2min, when temperature of charge is down to 60 DEG C, add polyethylene and stabilizer, mix and blend 2min；Treat that temperature of charge drops During to 70 DEG C, add the lubricant of surplus, antioxidant, activator, ethylene-vinyl acetate copolymer and maleic anhydride mix and blend 4min, adds plasticizer mix and blend 3min when temperature of charge is down to 80 DEG C, adds azo when temperature of charge is down to 85 DEG C Diformamide mix and blend 5min, adds nano-calcium carbonate when temperature of charge is down to 100 DEG C, mixes to temperature of charge and reach To stopping 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 (each parameter and prior art during injection moulding 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. the PE base wood-plastic composite material that a mechanical property is good, it is characterised in that: it is mainly by the component of following weight proportioning Make:
Bamboo powder 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, ethylene-vinyl acetate copolymer 10- 15, nano-calcium carbonate 4-8.
The PE base wood-plastic composite material that mechanical property the most according to claim 1 is good, it is characterised in that: the weight of each component Proportioning is:
Bamboo powder 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, ethylene-vinyl acetate copolymer 12- 15, nano-calcium carbonate 5-8.
The PE base wood-plastic composite material that mechanical property the most according to claim 1 is good, it is characterised in that: the weight of each component Proportioning is:
Bamboo powder 30, polyethylene 70, stabilizer 1, plasticizer 2, lubricant 1, activator 1, antioxidant 0.8, maleic anhydride 2, Malaysia Anhydride grafted lldpe 12, azodicarbonamide 18, ethylene-vinyl acetate copolymer 12, nano-calcium carbonate 6.
4. according to the PE base wood-plastic composite material that the mechanical property according to any one of claim 1-3 is good, it is characterised in that: institute The stabilizer stated is organic tin stabilizer, calcium zinc stabilizer or lead salt complex stabilizer.
5. according to the PE base wood-plastic composite material that the mechanical property according to any one of claim 1-3 is good, it is characterised in that: institute The plasticizer stated be in dioctyl phthalate, dibutyl phthalate and epoxy soybean oil one or both with On combination.
6. according to the PE base wood-plastic composite material that the mechanical property according to any one of claim 1-3 is good, it is characterised in that: institute The lubricant stated is a kind of or the most two or more group in stearic acid, lead stearate, barium stearate and zinc stearate Close.
7. according to the PE base wood-plastic composite material that the mechanical property according to any one of claim 1-3 is good, it is characterised in that: institute The antioxidant stated is 2,6 ditertiary butyl p cresol or four [methyl-β-(3,5-di-tert-butyl-hydroxy phenyl) propanoic acid Ester] pentaerythritol ester.
8. according to the PE base wood-plastic composite material that the mechanical property according to any one of claim 1-3 is good, it is characterised in that: institute The activator stated is zinc oxide.
CN201610471885.2A 2016-06-24 2016-06-24 The PE base wood-plastic composite material that a kind of mechanical property is good Pending CN106117703A (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4940363A (en) * 1972-08-25 1974-04-15
CN101092519A (en) * 2006-06-21 2007-12-26 丽方企业股份有限公司 Method for preparing plant fiber / plastics composite, and product prepared from the composite material
CN102838816A (en) * 2012-09-11 2012-12-26 桂林舒康建材有限公司 New macromolecule fiber composite material
CN103059381A (en) * 2013-01-14 2013-04-24 思伊纳化学科技（北京）有限公司 Inorganic mineral filled wood-plastic composite material and preparation method thereof
CN103374166A (en) * 2012-04-26 2013-10-30 上海杰事杰新材料(集团)股份有限公司 High-strength bamboo-plastic micro-foaming composite material and preparation method thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4940363A (en) * 1972-08-25 1974-04-15
CN101092519A (en) * 2006-06-21 2007-12-26 丽方企业股份有限公司 Method for preparing plant fiber / plastics composite, and product prepared from the composite material
CN103374166A (en) * 2012-04-26 2013-10-30 上海杰事杰新材料(集团)股份有限公司 High-strength bamboo-plastic micro-foaming composite material and preparation method thereof
CN102838816A (en) * 2012-09-11 2012-12-26 桂林舒康建材有限公司 New macromolecule fiber composite material
CN103059381A (en) * 2013-01-14 2013-04-24 思伊纳化学科技（北京）有限公司 Inorganic mineral filled wood-plastic composite material and preparation method thereof

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