Nothing Special   »   [go: up one dir, main page]

CN107793687A - A kind of anti-ageing wood-plastic packaging material and preparation method thereof - Google Patents

A kind of anti-ageing wood-plastic packaging material and preparation method thereof Download PDF

Info

Publication number
CN107793687A
CN107793687A CN201710879612.6A CN201710879612A CN107793687A CN 107793687 A CN107793687 A CN 107793687A CN 201710879612 A CN201710879612 A CN 201710879612A CN 107793687 A CN107793687 A CN 107793687A
Authority
CN
China
Prior art keywords
parts
wood
packaging material
temperature
plastic packaging
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
CN201710879612.6A
Other languages
Chinese (zh)
Inventor
王静
王海峰
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.)
Suzhou City Wood Packaging Material Co Ltd
Original Assignee
Suzhou City Wood Packaging 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 Suzhou City Wood Packaging Material Co Ltd filed Critical Suzhou City Wood Packaging Material Co Ltd
Priority to CN201710879612.6A priority Critical patent/CN107793687A/en
Priority to PCT/CN2017/112136 priority patent/WO2019061757A1/en
Publication of CN107793687A publication Critical patent/CN107793687A/en
Pending legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L51/00Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F255/00Macromolecular compounds obtained by polymerising monomers on to polymers of hydrocarbons as defined in group C08F10/00
    • C08F255/02Macromolecular compounds obtained by polymerising monomers on to polymers of hydrocarbons as defined in group C08F10/00 on to polymers of olefins having two or three carbon atoms
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F289/00Macromolecular compounds obtained by polymerising monomers on to macromolecular compounds not provided for in groups C08F251/00 - C08F287/00
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08HDERIVATIVES OF NATURAL MACROMOLECULAR COMPOUNDS
    • C08H8/00Macromolecular compounds derived from lignocellulosic materials
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/30Sulfur-, selenium- or tellurium-containing compounds
    • C08K2003/3045Sulfates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biochemistry (AREA)
  • Materials Engineering (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Laminated Bodies (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)

Abstract

The invention discloses a kind of preparation method of anti-ageing wood-plastic packaging material, and wood fibre is crushed into the wood powder that granularity is 80 120 mesh, adds dimethyl suflfate and polyethylene glycol, it is placed in high-pressure reaction vessel, under 4 8MPa pressure, 30 40min are reacted, obtain modified wood powder;Polypropylene particles, alkali magnesium sulfate crystal whisker, endoxan and ethyl-para-hydroxyphenyl ketone are mixed into 5 10min;Subsequent extruded machine melt blending is simultaneously granulated, and obtains modified polypropene particle;By modified wood powder and modified polypropene mix particles, and azodicarbonamide, cumyl peroxide, 4 butanediol esters and acrylic acid are added, in 90 120 DEG C of 40min of stirring reaction 20 of temperature;Feed the mixture into extruder, extruded under 175 190 DEG C of temperature, the 45rpm of screw speed 25;It is molded after through mould in 190 210 DEG C of temperature, the 12MPa lower pressed films of pressure 8;It can obtain the anti-ageing wood-plastic packaging material after cooling.

Description

A kind of anti-ageing wood-plastic packaging material and preparation method thereof
Technical field
The invention belongs to wood moulding packaging material field, more particularly to a kind of anti-ageing wood-plastic packaging material and its preparation side Method.
Background technology
Greatly consumed with the resource such as quickening, timber, fossil energy of people's Development of China's Urbanization, all kinds of natural resources will Increasingly exhausted, at the same time, people's environmental consciousness progressively strengthens, and wooden material also gradually rises.Wood plastic composite (WPC), A kind of composite made of mainly material is with plastics based on the timber or cellulose, be exactly will a certain proportion of wood it is fine Dimension (such as wood powder, powder of straw, cotton stalk powder, bamboo powder, shell powder) by pretreatment be allowed to thermoplastic polymer resin or other A kind of new material that material is combined into.The new material is not only green but also has good mechanical stability, can play In material the advantages of each component, overcome because being used caused by strength of wood is low, variability is big and organic material modulus of elasticity is low etc. Limitation, therefore, more and more get more and more people's extensive concerning.
But only focus on mixing or the recycling of several materials in existing macromolecule composite wood-plastic material production process, with And the improvement of basic mechanical property, do not take into full account various materials compatibility and interface cohesion situation, Interface adhesive strength and Various materials are in the diffusion at interface, infiltration etc., it is impossible to ensure that string can fully dispersed, wood/modeling circle in macromolecule resin Face interaction is poor, and both affinity is low, and bond strength is low, thus cause the mechanical property of macromolecule composite wood-plastic material with Other performances are relatively low;And ageing-resistant performance is weaker, can not continue to apply.
The content of the invention
For drawbacks described above, it is an object of the invention to provide a kind of anti-ageing wood-plastic packaging material and preparation method thereof, leads to Cross and wood powder and polypropylene plastics are modified respectively, improve the ageing-resistant performance of wood moulding packaging material;By adding the formyl of azo two The many kinds of substance such as amine improve the interaction force at wood/modeling interface, make its compatibility good.
A kind of preparation method of anti-ageing wood-plastic packaging material, is comprised the following steps:
(1) by 60-70 part wood fibres be crushed to granularity be 80-120 mesh wood powder, add 6-10 parts dimethyl suflfate and 20-30 part polyethylene glycol, is placed in high-pressure reaction vessel, under 4-8MPa pressure, reacts 30-40min, obtains modified wood powder;
(2) by 20-30 parts polypropylene particles, 5-8 parts alkali magnesium sulfate crystal whisker, 3-5 parts endoxan and 1-4 parts to hydroxyl Propiophenone mixes 5-10min;Subsequent extruded machine melt blending is simultaneously granulated, and obtains modified polypropene particle;
(3) by step (1) modified wood powder and step (2) the modified polypropene mix particles, and 2-4 parts idol is added Nitrogen diformamide, 1-3 parts cumyl peroxide, 4-9 part 4- butanediol esters and 15-20 part acrylic acid, in 90-120 DEG C of temperature Stirring reaction 20-40min;
(4) mixture obtained by step (3) is added in extruder, under 175-190 DEG C of temperature, screw speed 25-45rpm Extrusion;
(5) it is molded after through mould in 190-210 DEG C of temperature, pressure 8-12MPa lower pressed films;It can obtain institute after cooling State anti-ageing wood-plastic packaging material.
Further, wood fibre described in step (1) is 65 parts, dimethyl suflfate is 8 parts, 28 parts of polyethylene glycol, Under 6.5MPa pressure, 35min is reacted.
Further, 27 parts of polypropylene particles described in step (2), 6 parts of alkali magnesium sulfate crystal whisker, 4 parts of endoxan and 3 parts of mixing 7min of ethyl-para-hydroxyphenyl ketone.
Further, the extrusion temperature of extruder described in step (2) is 160-180 DEG C, screw speed 20-30rpm.
Further, 3 parts of azodicarbonamide described in step (3), 2 parts of cumyl peroxide, 7 parts of 4- butanediol esters With 16 parts of acrylic acid;In 108 DEG C of stirring reaction 35min of temperature.
Further, 185 DEG C of temperature, screw speed 35rpm in step (4).
Further, 200 DEG C of temperature, pressure 10MPa described in step (5).
The anti-ageing wood-plastic packaging material being prepared described in above-mentioned any one.
Compared with prior art, its advantage is the present invention:
A kind of preparation method of anti-ageing wood-plastic packaging material of the present invention, passes through dimethyl suflfate and polyethylene glycol pair Wood fibre surface is modified, and polypropylene particles are carried out by alkali magnesium sulfate crystal whisker, endoxan, ethyl-para-hydroxyphenyl ketone It is modified, first improve wood fibre and the respective ageing-resistant performance of polypropylene particles.It is then different in azodicarbonamide, peroxidating two In the presence of propyl benzene, 4- butanediol esters and acrylic acid, the wood/enhancing of modeling interfacial interaction, Interface adhesive strength and various materials Diffusion, infiltration increase at interface, both affinity improve, and bond strength is high, and compatibility is good, and overall performance is improved.
Embodiment
The present invention is further illustrated with reference to embodiments.
Embodiment 1
(1) 60 parts of wood fibres are crushed to the wood powder that granularity is 80 mesh, add 6 parts of dimethyl suflfates and 20 parts of poly- second two Alcohol, it is placed in high-pressure reaction vessel, under 4MPa pressure, reacts 40min, obtain modified wood powder;
(2) 20 parts of polypropylene particles, 5 parts of alkali magnesium sulfate crystal whiskers, 5 parts of endoxan and 4 parts of ethyl-para-hydroxyphenyl ketones are mixed Close stirring 5min;Subsequent extruded machine melt blending is simultaneously granulated, and obtains modified polypropene particle;Extrusion temperature is 160 DEG C, screw rod Rotating speed 30rpm;
(3) by step (1) modified wood powder and step (2) the modified polypropene mix particles, and 2 parts of azos are added Diformamide, 1 part of cumyl peroxide, 9 parts of 4- butanediol esters and 15 parts of acrylic acid, in 120 DEG C of stirring reactions of temperature 20min;
(4) mixture obtained by step (3) is added in extruder, extruded under 175 DEG C of temperature, screw speed 25rpm;
(5) it is molded after through mould in 210 DEG C of temperature, pressure 8MPa lower pressed films;It can obtain after cooling described resistance to old Change wood moulding packaging material.
Embodiment 2
(1) 70 parts of wood fibres are crushed to the wood powder that granularity is 120 mesh, add 10 parts of dimethyl suflfates and 30 parts of poly- second Glycol, it is placed in high-pressure reaction vessel, under 8MPa pressure, reacts 30min, obtain modified wood powder;
(2) 30 parts of polypropylene particles, 8 parts of alkali magnesium sulfate crystal whiskers, 3 parts of endoxan and 1 part of ethyl-para-hydroxyphenyl ketone are mixed Close stirring 10min;Subsequent extruded machine melt blending is simultaneously granulated, and obtains modified polypropene particle;Extrusion temperature is 180 DEG C, spiral shell Bar rotating speed 20rpm;
(3) by step (1) modified wood powder and step (2) the modified polypropene mix particles, and 4 parts of azos are added Diformamide, 3 parts of cumyl peroxides, 4 parts of 4- butanediol esters and 20 parts of acrylic acid, in 90 DEG C of stirring reaction 40min of temperature;
(4) mixture obtained by step (3) is added in extruder, extruded under 190 DEG C of temperature, screw speed 45rpm;
(5) it is molded after through mould in 190 DEG C of temperature, pressure 12MPa lower pressed films;It can obtain after cooling described resistance to old Change wood moulding packaging material.
Embodiment 3
(1) 62 parts of wood fibres are crushed to the wood powder that granularity is 100 mesh, add 8 parts of dimethyl suflfates and 26 parts of poly- second Glycol, it is placed in high-pressure reaction vessel, under 6MPa pressure, reacts 35min, obtain modified wood powder;
(2) 24 parts of polypropylene particles, 7 parts of alkali magnesium sulfate crystal whiskers, 3 parts of endoxan and 4 parts of ethyl-para-hydroxyphenyl ketones are mixed Close stirring 6min;Subsequent extruded machine melt blending is simultaneously granulated, and obtains modified polypropene particle;Extrusion temperature is 168 DEG C, screw rod Rotating speed 22rpm;
(3) by step (1) modified wood powder and step (2) the modified polypropene mix particles, and 3 parts of azos are added Diformamide, 1 part of cumyl peroxide, 8 parts of 4- butanediol esters and 17 parts of acrylic acid, in 100 DEG C of stirring reactions of temperature 28min;
(4) mixture obtained by step (3) is added in extruder, extruded under 180 DEG C of temperature, screw speed 30rpm;
(5) it is molded after through mould in 200 DEG C of temperature, pressure 10MPa lower pressed films;It can obtain after cooling described resistance to old Change wood moulding packaging material.
Embodiment 4
(1) 68 parts of wood fibres are crushed to the wood powder that granularity is 90 mesh, add 7 parts of dimethyl suflfates and 22 parts of poly- second two Alcohol, it is placed in high-pressure reaction vessel, under 7MPa pressure, reacts 38min, obtain modified wood powder;
(2) 28 parts of polypropylene particles, 6 parts of alkali magnesium sulfate crystal whiskers, 5 parts of endoxan and 2 parts of ethyl-para-hydroxyphenyl ketones are mixed Close stirring 9min;Subsequent extruded machine melt blending is simultaneously granulated, and obtains modified polypropene particle;Extrusion temperature is 175 DEG C, screw rod Rotating speed 27rpm;
(3) by step (1) modified wood powder and step (2) the modified polypropene mix particles, and 4 parts of azos are added Diformamide, 3 parts of cumyl peroxides, 6 parts of 4- butanediol esters and 19 parts of acrylic acid, in 110 DEG C of stirring reactions of temperature 24min;
(4) mixture obtained by step (3) is added in extruder, extruded under 185 DEG C of temperature, screw speed 40rpm;
(5) it is molded after through mould in 205 DEG C of temperature, pressure 12MPa lower pressed films;It can obtain after cooling described resistance to old Change wood moulding packaging material.
Embodiment 5
(1) 65 parts of wood fibres are crushed to the wood powder that granularity is 90 mesh, add 8 parts of dimethyl suflfates and 28 parts of poly- second two Alcohol, it is placed in high-pressure reaction vessel, under 6.5MPa pressure, reacts 35min, obtain modified wood powder;
(2) 27 parts of polypropylene particles, 6 parts of alkali magnesium sulfate crystal whiskers, 4 parts of endoxan and 3 parts of ethyl-para-hydroxyphenyl ketones are mixed Close stirring 7min;Subsequent extruded machine melt blending is simultaneously granulated, and obtains modified polypropene particle;Extrusion temperature is 175 DEG C, screw rod Rotating speed 25rpm;
(3) by step (1) modified wood powder and step (2) the modified polypropene mix particles, and 3 parts of azos are added Diformamide, 2 parts of cumyl peroxides, 7 parts of 4- butanediol esters and 16 parts of acrylic acid, in 108 DEG C of stirring reactions of temperature 35min;
(4) mixture obtained by step (3) is added in extruder, extruded under 185 DEG C of temperature, screw speed 35rpm;
(5) it is molded after through mould in 200 DEG C of temperature, pressure 10MPa lower pressed films;It can obtain after cooling described resistance to old Change wood moulding packaging material.
To above-mentioned each embodiment anti-ageing wood-plastic packaging material performance test, detailed results see the table below:
The invention is not restricted to embodiment here, those skilled in the art do not depart from the present invention according to the announcement of the present invention The improvement and modification that category is made all should be within protection scope of the present invention.

Claims (8)

1. a kind of preparation method of anti-ageing wood-plastic packaging material, it is characterised in that comprise the following steps:
(1) 60-70 part wood fibres are crushed to the wood powder that granularity is 80-120 mesh, add 6-10 parts dimethyl suflfate and 20- 30 parts of polyethylene glycol, are placed in high-pressure reaction vessel, under 4-8MPa pressure, react 30-40min, obtain modified wood powder;
(2) by 20-30 parts polypropylene particles, 5-8 parts alkali magnesium sulfate crystal whisker, 3-5 parts endoxan and 1-4 parts para hydroxybenzene third Ketone mixes 5-10min;Subsequent extruded machine melt blending is simultaneously granulated, and obtains modified polypropene particle;
(3) by step (1) modified wood powder and step (2) the modified polypropene mix particles, and 2-4 parts azo two is added Formamide, 1-3 parts cumyl peroxide, 4-9 part 4- butanediol esters and 15-20 part acrylic acid, in 90-120 DEG C of stirring of temperature React 20-40min;
(4) mixture obtained by step (3) is added in extruder, squeezed under 175-190 DEG C of temperature, screw speed 25-45rpm Go out;
(5) it is molded after through mould in 190-210 DEG C of temperature, pressure 8-12MPa lower pressed films;It can obtain after cooling described resistance to Aging wood moulding packaging material.
A kind of 2. preparation method of anti-ageing wood-plastic packaging material according to claim 1, it is characterised in that step (1) Described in wood fibre be 65 parts, dimethyl suflfate is 8 parts, 28 parts of polyethylene glycol, under 6.5MPa pressure, react 35min.
A kind of 3. preparation method of anti-ageing wood-plastic packaging material according to claim 1, it is characterised in that step (2) Described in 27 parts of polypropylene particles, 6 parts of alkali magnesium sulfate crystal whisker, 4 parts of endoxan and the mixing of 3 parts of ethyl-para-hydroxyphenyl ketone 7min。
A kind of 4. preparation method of anti-ageing wood-plastic packaging material according to claim 1, it is characterised in that step (2) Described in extruder extrusion temperature be 160-180 DEG C, screw speed 20-30rpm.
A kind of 5. preparation method of anti-ageing wood-plastic packaging material according to claim 1, it is characterised in that step (3) Described in 16 parts of 3 parts of azodicarbonamide, 2 parts of cumyl peroxide, 7 parts of 4- butanediol esters and acrylic acid;In 108 DEG C of temperature Stirring reaction 35min.
A kind of 6. preparation method of anti-ageing wood-plastic packaging material according to claim 1, it is characterised in that step (4) Middle 185 DEG C of temperature, screw speed 35rpm.
A kind of 7. preparation method of anti-ageing wood-plastic packaging material according to claim 1, it is characterised in that step (5) Described in 200 DEG C of temperature, pressure 10MPa.
8. the anti-ageing wood-plastic packaging material being prepared according to any one of claim 1-7.
CN201710879612.6A 2017-09-26 2017-09-26 A kind of anti-ageing wood-plastic packaging material and preparation method thereof Pending CN107793687A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201710879612.6A CN107793687A (en) 2017-09-26 2017-09-26 A kind of anti-ageing wood-plastic packaging material and preparation method thereof
PCT/CN2017/112136 WO2019061757A1 (en) 2017-09-26 2017-11-21 Aging-resistant wood-plastic packaging material and preparation method therefor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710879612.6A CN107793687A (en) 2017-09-26 2017-09-26 A kind of anti-ageing wood-plastic packaging material and preparation method thereof

Publications (1)

Publication Number Publication Date
CN107793687A true CN107793687A (en) 2018-03-13

Family

ID=61532161

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710879612.6A Pending CN107793687A (en) 2017-09-26 2017-09-26 A kind of anti-ageing wood-plastic packaging material and preparation method thereof

Country Status (2)

Country Link
CN (1) CN107793687A (en)
WO (1) WO2019061757A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109082135A (en) * 2018-07-04 2018-12-25 合肥帧讯低温科技有限公司 High-strength composite packaging material and preparation method thereof
WO2019061757A1 (en) * 2017-09-26 2019-04-04 苏州市一木包装材料有限公司 Aging-resistant wood-plastic packaging material and preparation method therefor

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112143215A (en) * 2020-10-16 2020-12-29 界首市宏达塑业有限公司 High-flame-retardant polyurethane plastic particle and preparation method thereof

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102417738A (en) * 2011-11-23 2012-04-18 常熟钰泰隆摩擦新材料科技有限公司 Titanium oxide fiber and lignin modified anti-aging wood-plastic composite material and preparation method thereof

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2635908B2 (en) * 1993-06-14 1997-07-30 木質新素材技術研究組合 Wood filler reinforced resin material
CN102732044B (en) * 2012-07-20 2014-04-09 鑫盛(湖州)塑木科技有限公司 Anti-aging wood-plastic composite material board and preparation method thereof
CN104231430B (en) * 2014-08-26 2016-09-07 广东红运家具有限公司 The preparation method of anti-soiling aging-resisting Wood-plastic material and goods
CN104725719A (en) * 2015-01-19 2015-06-24 中国科学院合肥物质科学研究院 Method for preparing wood-plastic material by coating polyacrylate with wood powder
CN107793687A (en) * 2017-09-26 2018-03-13 苏州市木包装材料有限公司 A kind of anti-ageing wood-plastic packaging material and preparation method thereof

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102417738A (en) * 2011-11-23 2012-04-18 常熟钰泰隆摩擦新材料科技有限公司 Titanium oxide fiber and lignin modified anti-aging wood-plastic composite material and preparation method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019061757A1 (en) * 2017-09-26 2019-04-04 苏州市一木包装材料有限公司 Aging-resistant wood-plastic packaging material and preparation method therefor
CN109082135A (en) * 2018-07-04 2018-12-25 合肥帧讯低温科技有限公司 High-strength composite packaging material and preparation method thereof

Also Published As

Publication number Publication date
WO2019061757A1 (en) 2019-04-04

Similar Documents

Publication Publication Date Title
CN102140255B (en) Hot-press type wood plastic composite for toy and preparation method thereof
CN103772819B (en) A kind of preparation method of polypropylene powdered rice hulls foaming composite pallet
CN105542498B (en) A kind of modified composite material of woods and plastics and preparation method thereof
CN102492305B (en) Formula for preparing wood-plastic composite material from papermaking solid wastes and method thereof
CN103360776B (en) A kind of production technology of high-intensity wood plastic composite
CN107793687A (en) A kind of anti-ageing wood-plastic packaging material and preparation method thereof
CN102746579A (en) Dumbbell and barbell products manufactured from composite material and manufacturing method of dumbbell and barbell products
CN102643557A (en) Novel wood flour and rice hull powder mixed type thermoplastic wood-plastic composite material and preparation method thereof
CN108467602A (en) A method of preparing wood plastic composite using cherry sawdust
CN103709775A (en) Preparation method of high-strength wood-plastic composite section bar
CN103642122A (en) Basalt fiber enhanced wood plastic composite
CN102516592A (en) Preparation method of waste plastic composite material modified by waste circuit board non-metal powder
CN109385000A (en) A kind of fiber reinforcement co-extrusion foaming wood plastic composite and its production technology
CN106590005A (en) Plastic-wood composite floor and preparation method thereof
CN104387660A (en) Non-metal modified polypropylene plastic in waste circuit board and preparation method thereof
CN105949807A (en) Polyvinyl alcohol-based wood-plastic composite and melting processing method thereof
CN103642258B (en) A kind of wood is moulded composite fire-proof sheet material
CN106751436B (en) Phenolaldehyde moulding compound for thin-wall construction
CN107141569A (en) A kind of high rigidity PVC smooth surface wood-plastic boards and preparation method thereof
CN102888082A (en) Composite material and preparation method thereof
CN103613842A (en) High water resistant wood and plastic composite material
CN106243761A (en) A kind of high-intensity wood plastic composite
CN105001519A (en) Gallery frame wood-plastic composite and preparation method thereof
CN107118712B (en) A kind of adhesive, preparation method and application
CN104774369A (en) Method for preparing polyethylene-based wood-plastic composite material by using peanut shell powder

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20180313

WD01 Invention patent application deemed withdrawn after publication