CN106365678B - A kind of preparation method of wood plastic composite auxiliary agent - Google Patents

A kind of preparation method of wood plastic composite auxiliary agent Download PDF

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Publication number
CN106365678B
CN106365678B CN201610754241.4A CN201610754241A CN106365678B CN 106365678 B CN106365678 B CN 106365678B CN 201610754241 A CN201610754241 A CN 201610754241A CN 106365678 B CN106365678 B CN 106365678B
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aluminium
aluminium oxide
aluminium nitride
wood plastic
plastic composite
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CN106365678A (en
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严秀芹
陆绍荣
曾岑
罗崇禧
谢超
卢李勤
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Dongguan Zhenzhong Plastic Co.,Ltd.
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GUILIN SHUKANG BUILDING MATERIAL CO Ltd
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Abstract

The invention discloses a kind of preparation methods of wood plastic composite auxiliary agent, wherein the aluminium oxide that the auxiliary agent is made of aluminium oxide thermal conductive ceramic and aluminium nitride thermal conductive ceramic-aluminium nitride composite heat-conducting ceramics.The preparation method mainly has ball milling, calcining, again ball milling, granulation, sintering and crushing.By adding aluminium oxide prepared by the present invention-aluminium nitride composite heat-conducting ceramics, it can not only make wood plastic composite that there is good mechanical property, while also there is low water absorption rate, to make its application field more extensively and the service life is longer.In addition, aluminium oxide-aluminium nitride composite heat-conducting ceramics have certain air hole structure, pernicious gas can be adsorbed, air is purified, is good for the environment.Therefore, the present invention is a kind of preparation method of the wood plastic composite auxiliary agent of fine development prospect.

Description

A kind of preparation method of wood plastic composite auxiliary agent
Technical field
The present invention relates to a kind of preparation methods of wood plastic composite auxiliary agent, belong to technical field of composite materials.
Background technique
Wood plastic composite (Wood-Plastic Composites, WPC) is using thermoplastic as matrix, with warp Pretreated plant powder or wood-fibred are crossed as filler or reinforcement, is carried out by a certain percentage with various auxiliary agents needed for addition Mixing, a kind of composite material being prepared by extrusion, lamination, molding or the mode of injection molding.It is with preferable springform The performances such as amount, resistance to compression, counter-bending, durable, while also there are raw material resources, cost economization, product plasticization, use environmental protection The features such as changing with reclaiming.Therefore, wood plastic composite is suffered from many fields and is widely applied.
Currently, the research in relation to wood plastic composite is to improve interface compatibility emphatically and improves processing technology to obtain The more excellent material of mechanical property, processing performance, to meet the needs of various application fields.It is fast with wood plastic composite Speed development, people propose increasingly higher demands to wood plastic composite.Chinese patent notification number is CN102702602B public The patent of entitled " a kind of wood plastic composite " is opened, which mainly improves wood by addition metal powder The heat transfer property of plastic composite materials.Although it can obtain certain heat transfer property, mechanical property can't be satisfactory.Cause This, the mechanical property for continuing to explore with study wood plastic composite is necessary.
Summary of the invention
The present invention provides a kind of preparation method of wood plastic composite auxiliary agent, solves power existing for existing wood plastic composite Learn the problem of performance difference.
A kind of aluminium oxide-nitrogen that wood plastic composite auxiliary agent is made of aluminium oxide thermal conductive ceramic and aluminium nitride thermal conductive ceramic Change aluminium composite heat-conducting ceramics.
The aluminium oxide-aluminium nitride composite heat-conducting ceramics are to be prepared according to the following steps to obtain:
1) by purity be 99.9% or more aluminium oxide and aluminium nitride starting powder press 1: 1 weight ratio ingredient, be added nothing Water-ethanol, wet ball-milling mix 6~8h, after drying in 1100~1150 DEG C of air atmospheres pre-burning 6h；
2) in the powder made from step 1), dehydrated alcohol is added, rewetting formula 8~10h of ball milling mixing adds 2 after drying ~5% BaCu (B2O5), 1~3% La2O3With 1~3% Y2O3It is uniformly mixed；
3) in the powder made from step 2), addition dosage accounts for 3% poly-vinyl alcohol solution and 3% charcoal of total powder quality Powder, and after granulation, re-compacted molding, wherein the mass concentration of poly-vinyl alcohol solution is 5%；
4) first in 550~600 DEG C of air atmospheres, 1~3h of dumping, then be warming up in 1200~1250 DEG C of air atmospheres and burn 4h is tied, last cooled to room temperature is ground into 200~300 mesh, and aluminium oxide-aluminium nitride composite heat-conducting ceramics can be obtained.
Preferably,
The aluminium oxide-aluminium nitride composite heat-conducting ceramics are to be prepared according to the following steps to obtain:
1) by purity be 99.9% or more aluminium oxide and aluminium nitride starting powder press 1: 1 weight ratio ingredient, be added nothing Water-ethanol, wet ball-milling mixing 7h, after drying in 1125 DEG C of air atmospheres pre-burning 6h；
2) in the powder made from step 1), dehydrated alcohol is added, rewetting formula ball milling mixing 9h adds 4% after drying BaCu(B2O5), 2% La2O3With 2% Y2O3It is uniformly mixed；
3) in the powder made from step 2), addition dosage accounts for 3% poly-vinyl alcohol solution and 3% charcoal of total powder quality Powder, and after granulation, re-compacted molding, wherein the mass concentration of poly-vinyl alcohol solution is 5%；
4) first in 575 DEG C of air atmospheres, dumping 2h, then be warming up in 1225 DEG C of air atmospheres and be sintered 4h, it is last natural It is cooled to room temperature, is ground into 300 mesh, aluminium oxide-aluminium nitride composite heat-conducting ceramics can be obtained.
Compared with prior art, the beneficial effects of the present invention are:
Aluminium oxide-aluminium nitride composite heat-conducting ceramics, not only plays the role of filling, improves the tension of wood plastic composite Stretch the performances such as intensity, bending strength, thermal stability, moreover it is possible to which the heat transfer property for improving material improves the crystallization of wood plastic composite Rate and crystallinity keep its application field more extensive so as to improve the mechanical property and water absorption rate of wood plastic composite.Meanwhile Aluminium oxide-aluminium nitride composite heat-conducting ceramic density is smaller than density metal, is conducive to the lighting of wood plastic composite, is more advantageous to The development of wood plastic composite.In addition, aluminium oxide-aluminium nitride composite heat-conducting ceramics have certain air hole structure, can adsorb Pernicious gas purifies air, is good for the environment.
Specific embodiment
The present invention provides a kind of preparation method of wood plastic composite auxiliary agent, for make the purpose of the present invention, technical solution and Effect is clearer, clear, and the present invention is described in more detail below.
A kind of aluminium oxide-nitrogen that wood plastic composite auxiliary agent is made of aluminium oxide thermal conductive ceramic and aluminium nitride thermal conductive ceramic Change aluminium composite heat-conducting ceramics；
The aluminium oxide-aluminium nitride composite heat-conducting ceramics are to be prepared according to the following steps to obtain:
1) by purity be 99.9% or more aluminium oxide and aluminium nitride starting powder press 1: 1 weight ratio ingredient, be added nothing Water-ethanol, wet ball-milling mix 6~8h, after drying in 1100~1150 DEG C of air atmospheres pre-burning 6h；
2) in the powder made from step 1), dehydrated alcohol is added, rewetting formula 8~10h of ball milling mixing adds 2 after drying ~5% BaCu (B2O5), 1~3% La2O3With 1~3% Y2O3It is uniformly mixed；
3) in the powder made from step 2), addition dosage accounts for 3% poly-vinyl alcohol solution and 3% charcoal of total powder quality Powder, and after granulation, re-compacted molding, wherein the mass concentration of poly-vinyl alcohol solution is 5%；
4) first in 550~600 DEG C of air atmospheres, 1~3h of dumping, then be warming up in 1200~1250 DEG C of air atmospheres and burn 4h is tied, last cooled to room temperature is ground into 200~300 mesh, and aluminium oxide-aluminium nitride composite heat-conducting ceramics can be obtained.
Embodiment 1
A kind of aluminium oxide-nitrogen that wood plastic composite auxiliary agent is made of aluminium oxide thermal conductive ceramic and aluminium nitride thermal conductive ceramic Change aluminium composite heat-conducting ceramics；
The aluminium oxide-aluminium nitride composite heat-conducting ceramics are to be prepared according to the following steps to obtain:
1) by purity be 99.9% or more aluminium oxide and aluminium nitride starting powder press 1: 1 weight ratio ingredient, be added nothing Water-ethanol, wet ball-milling mixing 7h, after drying in 1125 DEG C of air atmospheres pre-burning 6h；
2) in the powder made from step 1), dehydrated alcohol is added, rewetting formula ball milling mixing 9h adds 4% after drying BaCu(B2O5), 2% La2O3With 2% Y2O3It is uniformly mixed；
3) in the powder made from step 2), addition dosage accounts for 3% poly-vinyl alcohol solution and 3% charcoal of total powder quality Powder, and after granulation, re-compacted molding, wherein the mass concentration of poly-vinyl alcohol solution is 5%；
4) first in 575 DEG C of air atmospheres, dumping 2h, then be warming up in 1225 DEG C of air atmospheres and be sintered 4h, it is last natural It is cooled to room temperature, is ground into 300 mesh, aluminium oxide-aluminium nitride composite heat-conducting ceramics can be obtained.
Embodiment 2
A kind of aluminium oxide-nitrogen that wood plastic composite auxiliary agent is made of aluminium oxide thermal conductive ceramic and aluminium nitride thermal conductive ceramic Change aluminium composite heat-conducting ceramics；
The aluminium oxide-aluminium nitride composite heat-conducting ceramics are to be prepared according to the following steps to obtain:
1) by purity be 99.9% or more aluminium oxide and aluminium nitride starting powder press 1: 1 weight ratio ingredient, be added nothing Water-ethanol, wet ball-milling mixing 6h, after drying in 1100 DEG C of air atmospheres pre-burning 6h；
2) in the powder made from step 1), dehydrated alcohol is added, rewetting formula ball milling mixing 8h adds 2% after drying BaCu(B2O5), 1% La2O3With 1% Y2O3It is uniformly mixed；
3) in the powder made from step 2), addition dosage accounts for 3% poly-vinyl alcohol solution and 3% charcoal of total powder quality Powder, and after granulation, re-compacted molding, wherein the mass concentration of poly-vinyl alcohol solution is 5%；
4) first in 550 DEG C of air atmospheres, dumping 1h, then be warming up in 1200 DEG C of air atmospheres and be sintered 4h, it is last natural It is cooled to room temperature, is ground into 200 mesh, aluminium oxide-aluminium nitride composite heat-conducting ceramics can be obtained.
Embodiment 3
A kind of aluminium oxide-nitrogen that wood plastic composite auxiliary agent is made of aluminium oxide thermal conductive ceramic and aluminium nitride thermal conductive ceramic Change aluminium composite heat-conducting ceramics；
The aluminium oxide-aluminium nitride composite heat-conducting ceramics are to be prepared according to the following steps to obtain:
1) by purity be 99.9% or more aluminium oxide and aluminium nitride starting powder press 1: 1 weight ratio ingredient, be added nothing Water-ethanol, wet ball-milling mixing 8h, after drying in 1150 DEG C of air atmospheres pre-burning 6h；
2) in the powder made from step 1), dehydrated alcohol is added, rewetting formula ball milling mixing 10h adds 5% after drying BaCu(B2O5), 3% La2O3With 3% Y2O3It is uniformly mixed；
3) in the powder made from step 2), addition dosage accounts for 3% poly-vinyl alcohol solution and 3% charcoal of total powder quality Powder, and after granulation, re-compacted molding, wherein the mass concentration of poly-vinyl alcohol solution is 5%；
4) first in 600 DEG C of air atmospheres, dumping 3h, then be warming up in 1250 DEG C of air atmospheres and be sintered 4h, it is last natural It is cooled to room temperature, is ground into 300 mesh, aluminium oxide-aluminium nitride composite heat-conducting ceramics can be obtained.
Auxiliary agent made from above-described embodiment 1-3 is replaced into background technique (CN102702602B) metal powder, other compositions Constant, the wood plastic composite that the wood plastic composite and background technique metal powder being prepared are prepared is using existing skill Art is tested, and test result is as follows shown in table 1:
1 wood-plastic composite performance test result of table
As can be seen that the opposite addition metal powder of addition aluminium oxide-aluminium nitride composite heat-conducting ceramics wood plastic composite For wood plastic composite, have the advantages that mechanical property is good and water absorption rate is low etc., is a kind of rising wood plastics composite Material additive.
Certainly, above it is that the preferred embodiments of the disclosure is described in detail, the present invention is not limited with this Practical range, equivalence changes made by all principles under this invention, construction and structure should all be covered by protection of the invention In range.

Claims (2)

1. a kind of preparation method of wood plastic composite auxiliary agent, it is characterised in that: the wood plastic composite auxiliary agent is by oxygen Change aluminium oxide-aluminium nitride composite heat-conducting ceramics of aluminium thermal conductive ceramic and aluminium nitride thermal conductive ceramic composition；
The aluminium oxide-aluminium nitride composite heat-conducting ceramics are to be prepared according to the following steps to obtain:
1) by purity be 99.9% or more aluminium oxide and aluminium nitride starting powder press 1: 1 weight ratio ingredient, anhydrous second is added Alcohol, wet ball-milling mix 6~8 h, after drying in 1100~1150 DEG C of air atmospheres 6 h of pre-burning；
2) in the powder made from step 1), dehydrated alcohol is added, 8~10 h of rewetting formula ball milling mixing adds 2~5% after drying BaCu (B2O5), 1~3% La2O3With 1~3% Y2O3It is uniformly mixed；
3) in the powder made from step 2, addition dosage accounts for 3% poly-vinyl alcohol solution and 3% that total powder quality is made in step 2 Powdered carbon, and after granulation, re-compacted molding, wherein the mass concentration of poly-vinyl alcohol solution is 5%；
4) first in 550 ~ 600 DEG C of air atmospheres, 1~3h of dumping, then be warming up in 1200 ~ 1250 DEG C of air atmospheres and be sintered 4 h, Last cooled to room temperature is ground into 200~300 mesh, and aluminium oxide-aluminium nitride composite heat-conducting ceramics can be obtained.
2. the preparation method of wood plastic composite auxiliary agent according to claim 1, it is characterised in that: the aluminium oxide- Aluminium nitride composite heat-conducting ceramics are to be prepared according to the following steps to obtain:
1) by purity be 99.9% or more aluminium oxide and aluminium nitride starting powder press 1: 1 weight ratio ingredient, anhydrous second is added Alcohol, wet ball-milling mix 7 h, after drying in 1125 DEG C of air atmospheres 6 h of pre-burning；
2) in the powder made from step 1), dehydrated alcohol is added, 9 h of rewetting formula ball milling mixing adds 4% BaCu after drying (B2O5), 2% La2O3With 2% Y2O3It is uniformly mixed；
3) in the powder made from step 2, addition dosage accounts for 3% poly-vinyl alcohol solution and 3% that total powder quality is made in step 2 Powdered carbon, and after granulation, re-compacted molding, wherein the mass concentration of poly-vinyl alcohol solution is 5%；
4) first in 575 DEG C of air atmospheres, dumping 2h, then be warming up in 1225 DEG C of air atmospheres and be sintered 4 h, last natural cooling To room temperature, 300 mesh are ground into, aluminium oxide-aluminium nitride composite heat-conducting ceramics can be obtained.
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CN106342080B (en) * 2007-11-26 2012-02-08 中国科学院上海硅酸盐研究所 A kind of carbon heat of aluminum oxynitride crystalline ceramics or aluminothermic reduction preparation method
CN105481345A (en) * 2015-12-16 2016-04-13 广东昭信照明科技有限公司 Low-temperature sintered ceramic material and preparing method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106342081B (en) * 2007-11-26 2012-02-08 中国科学院上海硅酸盐研究所 A kind of method for preparing solid phase of aluminum oxynitride crystalline ceramics
CN106342080B (en) * 2007-11-26 2012-02-08 中国科学院上海硅酸盐研究所 A kind of carbon heat of aluminum oxynitride crystalline ceramics or aluminothermic reduction preparation method
CN105481345A (en) * 2015-12-16 2016-04-13 广东昭信照明科技有限公司 Low-temperature sintered ceramic material and preparing method

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