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A preparing method of a rice hull powder/waste polystyrene wood-plastic composite material

A technology of waste polystyrene and wood-plastic composite materials, which is applied in the field of wood-plastic composite materials, can solve the problems of unsatisfactory performance, poor flame retardancy, and not many researches, and achieve uniform and continuous stress distribution at the phase interface. Improve the effect of low impact strength and increase crosslink density

Inactive Publication Date: 2016-02-24
ANHUI GUANGYUAN TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Wood-plastic composite material combines the advantages of wood and plastic, good processing performance, high mechanical strength, and has the characteristics of water resistance and corrosion resistance. It has been widely used in the construction industry, automobile industry and other fields, but its flame retardancy is not very good. OK, need to modify
[0003] Rice husk powder has a wide range of sources. It is an energy-saving and environmentally friendly biomass raw material. It can be used as wood powder for wood-plastic composite materials. However, there are not many studies on the preparation of wood-plastic composite materials, and the performance is not very ideal.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The method for preparing rice husk powder / waste polystyrene wood-plastic composite material provided by the present invention includes the following steps:

[0021] S1. Dry 10 parts by weight of rice husk powder at 100°C for 2h, and crush it to a particle size of less than 1cm, then add 35 parts of 5% sodium hydroxide solution by weight, soak at 40°C for 20 minutes, then Add 5 parts of silane coupling agent and 1 part of sodium dodecylbenzene sulfonate, stir for 100 minutes, wash and dry to obtain modified rice husk powder;

[0022] S2. Add waste polystyrene foam plastic into a pulverizer and pulverize to a diameter of 0.5-1 cm to obtain pretreated polystyrene;

[0023] S3. Combine 10 parts of modified rice husk powder, 25 parts of talc powder, 1 part of nano calcium carbonate, 10 parts of nano aluminum hydroxide, 2 parts of nano zinc borate, 3 parts of coupling agent, 0.1 parts of foaming agent, Mix 0.5 part of lanthanum stearate and 1 part of benzoyl peroxide, then add 100 ...

Embodiment 2

[0026] The method for preparing rice husk powder / waste polystyrene wood-plastic composite material provided by the present invention includes the following steps:

[0027] S1. Dry 15 parts of rice husk powder by weight at 90℃ for 3h, and crush it to a particle size of less than 1cm, then add 20 parts of 10% sodium hydroxide solution by mass, soak at 30℃ for 50min, then Add 2 parts of silane coupling agent and 5 parts of sodium dodecylbenzene sulfonate, stir for 50 minutes, wash and dry to obtain modified rice husk powder;

[0028] S2. Add waste polystyrene foam plastic into a pulverizer and pulverize to a diameter of 0.5-1 cm to obtain pretreated polystyrene;

[0029] S3. According to parts by weight, mix 30 parts of modified rice husk powder, 10 parts of talc powder, 5 parts of nano calcium carbonate, 3 parts of nano aluminum hydroxide, 10 parts of nano zinc borate, 1 part of coupling agent, 1 part of foaming agent, 0.1 part of lanthanum stearate and 0.2 part of benzoyl peroxide ar...

Embodiment 3

[0032] The method for preparing rice husk powder / waste polystyrene wood-plastic composite material provided by the present invention includes the following steps:

[0033] S1. Dry 12 parts of rice husk powder by weight at 98°C for 2.2h, and crush it to a particle size of less than 1cm, then add 30 parts of sodium hydroxide solution with a mass fraction of 6%, and soak at 38°C for 30 minutes. Then add 1 part of silane coupling agent A-151, 1 part of vinyl trimethoxysilane, 0.5 part of silane coupling agent KH-550, 0.5 part of silane coupling agent KH-560, 1.2 part of silane coupling agent KH-570 And 2.6 parts of sodium dodecylbenzene sulfonate, stirred for 80min, washed and dried to obtain modified rice husk powder;

[0034] S2. Add waste polystyrene foam plastic into a pulverizer and pulverize to a diameter of 0.5-1 cm to obtain pretreated polystyrene;

[0035] S3. According to parts by weight, 18 parts of modified rice husk powder, 24 parts of talc powder, 2.5 parts of nano calcium...

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Abstract

A preparing method of a rice hull powder / waste polystyrene wood-plastic composite material is disclosed. The method includes drying and smashing rice hull powder, adding into a sodium hydroxide solution, dipping, adding a silane coupling agent and sodium dodecylbenzenesulfonate to obtain modified rice hull powder, smashing waste polystyrene foam to obtain pretreated polystyrene, adding the modified rice hull powder, talcum powder, nanometer calcium carbonate, nanometer aluminium hydroxide, nanometer zinc borate, a coupling agent, a foaming agent, lanthanum stearate and benzoyl peroxide into the pretreated polystyrene, mixing, heating to 125-135 DEG C, maintaining the temperature for 3-5 min, allowing the mixture to stand at room temperature to obtain a preheated material, fully mixing the preheated material, carboxylated polyethylene and polycarbonate, adding the obtained mixture into a forming machine, and performing hot press processing. The preparing method is simple in process. A product prepared by the method is good in flame resistance, good in impact resistance, environmental friendly and long in service lifetime.

Description

Technical field [0001] The invention relates to the technical field of wood-plastic composite materials, in particular to a method for preparing rice husk powder / waste polystyrene wood-plastic composite materials. Background technique [0002] Wood-plastic composite material combines the advantages of wood and plastic, good processing performance, high mechanical strength, and has the characteristics of water resistance and corrosion resistance. It has been widely used in the construction industry, automobile industry and other fields, but its flame retardancy is not very good. Well, it needs to be modified. [0003] Rice husk powder has a wide range of sources. It is an energy-saving and environmentally friendly biomass raw material. It can be used as wood powder for wood-plastic composite materials. However, there are not many researches used to prepare wood-plastic composite materials, and the performance is not very satisfactory. Summary of the invention [0004] Based on the t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L25/06C08L97/02C08L23/26C08L69/00C08K13/02C08K3/34C08K3/26C08K3/22C08K3/38C08K5/098C08K5/14C08J9/04B29C43/02B29B13/00
Inventor 梁晓燕
Owner ANHUI GUANGYUAN TECH DEV