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Preparation method of PVC (polyvinyl chloride) wood-plastic plate having termite-preventing function and being applied to wall decoration

A termite and functional technology, applied in the field of building decoration materials, can solve the problems of strong concealment, difficulty in finding, and damage of target objects, and achieve the effect of simple process

Inactive Publication Date: 2015-06-03
HANGZHOU DIANZI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Chinese invention patents CN103740005A, CN102492245A and CN101275003, etc., disclose the production formula and process of using waste PVC to prepare wood-plastic composites; Chinese invention patents CN103319810A, CN103602088A and CN103304915A, etc. , discloses the process of using lead salt heat stabilizer to prepare wood-plastic composite materials; although the above-mentioned invention patent emphasizes the advantages of simple process and low cost, it is difficult to apply to indoor walls because the formula involves environmental problems such as waste PVC and heavy metal pollution. The use of surface decoration materials
In addition, termites are not only a serious hazard to agriculture and forestry, but also to housing construction and interior decorations. Termites are highly concealed and difficult to find. Once discovered, they often cause damage to the target object.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] (1) Add dry wood powder into a high-speed mixer, stir and heat, add ethanol solution of silane coupling agent to activate wood powder, and dry and discharge.

[0026] (2) Stir 80 parts of wood flour, 100 parts of PVC and 70 parts of inorganic filler (a mixture of calcium carbonate and pyrophyllite, the mass ratio is 4:1), heat up to 95 ° C, mix for 20 minutes, and fully dry; add 3 One part of calcium-zinc composite heat stabilizer, one part of anti-termite agent, mixed for 5 minutes; then the mixture was transferred to a low-speed mixer, stirred and cut cold; pelletized through an extruder.

[0027] (3) Put the prepared material into an extruder to melt and extrude, and then cold cut into a specified length to prepare a PVC wood-plastic board. The speed of the extruder is 50 rpm, the speed of the feeder is 5 rpm; the molding temperature of the extruder is 130°C in zone 1, 140°C in zone 2, 180°C in zone 3, 180°C in zone 4, and 180°C in zone 5. ℃, zone 6 170 ℃, head 190 ...

Embodiment 2

[0029] (1) Add dry wood powder into a high-speed mixer, stir and heat, add ethanol solution of silane coupling agent to activate wood powder, and dry and discharge.

[0030] (2) Stir 50 parts of wood flour, 100 parts of PVC and 50 parts of inorganic filler (a mixture of calcium carbonate and pyrophyllite, the mass ratio is 4:1), heat up to 95°C, mix for 25 minutes, and fully dry; add 6 1 part of calcium-zinc composite heat stabilizer, 5 parts of anti-termite agent, mixed for 8 minutes; then the mixture was transferred to a low-speed mixer, stirred and cut cold; granulated through an extruder.

[0031] (3) Put the prepared material into an extruder to melt and extrude, and then cold cut into a specified length to prepare a PVC wood-plastic board. The speed of the extruder is 60 rpm, the speed of the feeder is 8 rpm; the molding temperature of the extruder is 135°C in zone 1, 140°C in zone 2, 185°C in zone 3, 180°C in zone 4, and 185°C in zone 5 ℃, zone 6 175 ℃, head 190 ℃, wat...

Embodiment 3

[0033] (1) Add dry wood powder into a high-speed mixer, stir and heat, add ethanol solution of silane coupling agent to activate wood powder, and dry and discharge.

[0034] (2) Stir 100 parts of wood flour, 100 parts of PVC and 80 parts of inorganic filler (a mixture of calcium carbonate and pyrophyllite, the mass ratio is 3:1), heat up to 100°C, mix for 30 minutes, and fully dry; add 10 1 part of calcium-zinc composite heat stabilizer, 3 parts of anti-termite agent, mixed for 5 minutes; then the mixture was transferred to a low-speed mixer, stirred and cut cold; granulated through an extruder.

[0035] (3) Put the prepared material into the extruder to melt and extrude, and then cold cut into the specified length to prepare PVC wood-plastic board. The speed of the extruder is 55 rpm, the speed of the feeder is 7 rpm; the molding temperature of the extruder is 132°C in zone 1, 143°C in zone 2, 184°C in zone 3, 183°C in zone 4, and 182°C in zone 5 ℃, zone 6 174 ℃, head 190 ℃,...

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Abstract

The invention provides a method for preparing a PVC (polyvinyl chloride) wood-plastic plate which has a termite-preventing function and replaces wallpaper, curtain cloth and the like to be applied to indoor wall decoration without waste PVC and poisonous and harmful aids. The PVC wood-plastic plate is prepared from components as follows: 50-100 parts of wood meal, 100 parts of PVC, 5-10 parts of chlorinated PVC, 3-10 parts of a calcium-zinc heat stabilizer, 50-100 parts of inorganic filler and 1-5 parts of a termite-preventing agent through mixing. The method is simple in process, used equipment is common high-polymer machining equipment, industrial application can be realized, and the produced wood-plastic plate is excellent in performance and non-toxic.

Description

technical field [0001] The invention belongs to the field of building decoration materials, and relates to a PVC wood-plastic composite material, in particular to the preparation of a PVC wood-plastic composite material board for wall decoration with a termite-proof function. Background technique [0002] my country's buildings are moving towards the direction of green and environmental protection, and the requirements for residential buildings to reduce energy consumption and protect the environment are put forward. In 2014, according to a survey by the China Association for Standardization, 68% of diseases were related to indoor air pollution caused by decoration, especially leukemia, respiratory diseases, allergic diseases, and functional abnormalities. Wood-plastic composite material is a composite material related to concepts such as green, low carbon, energy saving and environmental protection, circular economy, and sustainable development. It has been widely used in C...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L97/02C08L27/24C08K13/02C08K5/1535C08K5/205C08K3/26B29C47/92B29C48/92
CPCC08L27/06B29C48/92B29C2948/9258B29C2948/92704C08L2205/03C08L97/02C08L27/24C08K13/02C08K2003/265C08K2003/2227C08K2003/2272C08K5/1535C08K5/205
Inventor 卢红伟楼晶晶俞卓君施晓阳柳菁菁郑灏亮崔永华朱宏杰王文
Owner HANGZHOU DIANZI UNIV