Additives for wood-plastic composites (WPC) and preparation method thereof

A technology of wood-plastic composite materials and additives, applied in the field of composite materials, can solve problems such as poor mechanical properties, achieve the effects of prolonging life, improving tensile strength, improving mechanical properties and water absorption

Active Publication Date: 2017-02-01
浙江祥景科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides an additive for wood-plastic composite materials and a preparation method thereof, which solves the problem of poor mechanical properties of existing wood-plastic composite materials

Method used

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  • Additives for wood-plastic composites (WPC) and preparation method thereof

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[0021] The present invention provides an auxiliary agent for wood-plastic composite materials and a preparation method thereof. In order to make the purpose, technical solution and effect of the present invention clearer and clearer, the present invention will be further described in detail below.

[0022] An additive for wood-plastic composite materials is alumina-aluminum nitride-boron nitride composite heat-conducting ceramics composed of alumina heat-conducting ceramics, aluminum nitride heat-conducting ceramics and boron nitride heat-conducting ceramics;

[0023] The alumina-aluminum nitride-boron nitride composite heat-conducting ceramic is prepared according to the following steps:

[0024] 1) Mix the original powders of alumina, aluminum nitride and boron nitride with a purity of more than 99.9% according to a weight ratio of 1:1:1, add absolute ethanol, mix by wet ball milling for 6 to 8 hours, and dry at 1150 to 1200 ℃ pre-fired in the air atmosphere for 4 hours;

...

Embodiment 1

[0030] An additive for wood-plastic composite materials is alumina-aluminum nitride-boron nitride composite heat-conducting ceramics composed of alumina heat-conducting ceramics, aluminum nitride heat-conducting ceramics and boron nitride heat-conducting ceramics;

[0031] The alumina-aluminum nitride-boron nitride composite heat-conducting ceramic is prepared according to the following steps:

[0032] 1) Mix the original powders of alumina, aluminum nitride and boron nitride with a purity of more than 99.9% in a weight ratio of 1:1:1, add absolute ethanol, mix for 7 hours by wet ball milling, and dry them in an atmospheric atmosphere at 1175°C Medium pre-burning for 4 hours;

[0033] 2) Add dehydrated ethanol to the powder obtained in step 1), then wet ball mill and mix for 6-8 hours, and add 3% BaCu(B 2 o 5 ), 2% La 2 o 3 , 2% of Y 2 o 3 and 2% TiO 2 well mixed;

[0034] 3) In the powder obtained in step 2), add 3% polyvinyl alcohol solution and 3% carbon powder in a...

Embodiment 2

[0038] An additive for wood-plastic composite materials is alumina-aluminum nitride-boron nitride composite heat-conducting ceramics composed of alumina heat-conducting ceramics, aluminum nitride heat-conducting ceramics and boron nitride heat-conducting ceramics;

[0039] The alumina-aluminum nitride-boron nitride composite heat-conducting ceramic is prepared according to the following steps:

[0040] 1) Mix the original powders of alumina, aluminum nitride and boron nitride with a purity of more than 99.9% in a weight ratio of 1:1:1, add absolute ethanol, mix by wet ball milling for 6 hours, and dry them in an atmospheric atmosphere at 1150°C Medium pre-burning for 4 hours;

[0041] 2) Add dehydrated ethanol to the powder obtained in step 1), then wet ball mill and mix for 6 hours, and add 2% BaCu(B 2 o 5 ), 1% La 2 o 3, 1% of Y 2 o 3 and 1% TiO 2 well mixed;

[0042] 3) In the powder obtained in step 2), add 3% polyvinyl alcohol solution and 3% carbon powder in an a...

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Abstract

The invention discloses additives for wood-plastic composites (WPC) and a preparation method of the additives for the WPC, wherein the additives are alumina-aluminum nitride-boron nitride composite conductive ceramic which comprises alumina conductive ceramic, and aluminum nitride and boron nitride conductive ceramic. The preparation method mainly comprises the steps of ball milling, calcining, secondary ball milling, granulation, sintering, grinding and the like. According to the invention, the prepared alumina-aluminum nitride-boron nitride composite conductive ceramic is added, thereby being capable of making the WPC have good mechanical properties, and further have lower water absorption rates to facilitate wider application fields and longer service life of the WPC. In addition, the alumina-aluminum nitride-boron nitride composite conductive ceramic has a certain pore structure, so that harmful gases can be absorbed and the air can be purified, thereby being conducive to environmental protection.

Description

technical field [0001] The invention relates to an auxiliary agent for wood-plastic composite materials and a preparation method thereof, belonging to the technical field of composite materials. Background technique [0002] Wood-plastic composites (Wood-Plastic Composites, WPC) use thermoplastics as a matrix, pretreated plant powder or wood fiber as a filler or reinforcement, and are mixed with various additives required in a certain proportion. A composite material prepared by extrusion, lamination, molding or injection molding. It has good elastic modulus, compression resistance, bending resistance, durability and other properties, and also has the characteristics of raw material resources, cost economy, product plasticization, environmental protection and recycling. Therefore, wood-plastic composite materials are widely used in many fields. [0003] At present, research on wood-plastic composites focuses on improving interfacial compatibility and improving processing t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/10C04B35/582C04B35/5835C04B35/626C08L97/02C08L101/00C08K3/22C08K3/28C08K3/38
CPCC04B35/10C04B35/581C04B35/583C04B35/62615C04B35/62695C04B2235/3225C04B2235/3227C04B2235/3232C04B2235/3409C04B2235/408C04B2235/422C08L97/02C08L101/00C08K2003/2227C08K2003/282C08K2003/385
Inventor 严秀芹陆绍荣曾岑罗崇禧谢超卢李勤
Owner 浙江祥景科技有限公司
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