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A method of preparing a high-performance wood plastic composite by utilization of waste polystyrene

A technology of wood-plastic composite materials and waste polystyrene, which is applied in the field of wood-plastic composite materials, can solve the problems of unsatisfactory flame retardancy, low impact strength, and limited application range, etc., and achieve uniform and continuous stress distribution at the phase interface, Strong interface binding force and good mixing effect

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

Polystyrene has the advantages of transparency, good formability, good rigidity, good electrical insulation, easy dyeing, low hygroscopicity and low price. It has been widely used in packaging, electronics, construction, automobiles, home appliances, instruments, daily necessities and toys. Widely used, it is one of the plastics commonly used in the preparation of wood-plastic composite materials, but polystyrene is brittle, the impact strength is not high, and the flame retardancy is not very ideal, thus limiting the application range of the wood-plastic composite materials made

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A kind of method that utilizes waste polystyrene to prepare high-performance wood-plastic composite material that the present invention proposes, comprises the following steps:

[0019] S1. Dry 50 parts of corn stalks at 90°C for 3 hours by weight, pass through a 200-mesh sieve after crushing, then add 20 parts of hydrochloric acid with a mass fraction of 20%, soak at 35°C for 60 minutes, and then add 3 parts of silane Combine agent KH-550 and 5 parts of N,N-bishydroxyethyl alkylamide, stir for 50 minutes, wash and dry to obtain modified corn stalks;

[0020] S2, adding waste polystyrene foam plastics into a pulverizer and pulverizing to a diameter of 0.5-1 cm to obtain pretreated polystyrene;

[0021] S3, by weight, 30 parts of modified corn stalks, 5 parts of nano-titanium dioxide, 5 parts of molybdenum disulfide, 2 parts of nano-aluminum hydroxide, 10 parts of nano-zinc stannate, 0.5 parts of silane coupling agent KH-560, 1.5 parts Silane coupling agent KH-570, 0.1 ...

Embodiment 2

[0024] A kind of method that utilizes waste polystyrene to prepare high-performance wood-plastic composite material that the present invention proposes, comprises the following steps:

[0025] S1. Dry 30 parts of corn stalks by weight at 100°C for 2 hours, pass through a 200-mesh sieve after crushing, then add 35 parts of hydrochloric acid with a mass fraction of 10%, soak at 50°C for 30 minutes, and then add 5 parts of silane Combine agent KH-550 and 1 part of N,N-bishydroxyethyl alkylamide, stir for 100 minutes, wash and dry to obtain modified corn stalks;

[0026] S2, adding waste polystyrene foam plastics into a pulverizer and pulverizing to a diameter of 0.5-1 cm to obtain pretreated polystyrene;

[0027] S3, by weight, 10 parts of modified corn stalks, 20 parts of nano-titanium dioxide, 1 part of molybdenum disulfide, 10 parts of nano-aluminum hydroxide, 2 parts of nano-zinc stannate, 2 parts of silane coupling agent KH-560, 0.5 parts Silane coupling agent KH-570, 1 par...

Embodiment 3

[0030] A kind of method that utilizes waste polystyrene to prepare high-performance wood-plastic composite material that the present invention proposes, comprises the following steps:

[0031] S1. Dry 38 parts of corn stalks at 98°C for 2.2 hours in parts by weight, pass through a 200-mesh sieve after crushing, then add 33 parts of hydrochloric acid with a mass fraction of 13%, soak at 46°C for 40 minutes, and then add 4.3 parts of silane Coupling agent KH-550 and 3.2 parts of N,N-bishydroxyethyl alkylamide, stirred for 75 minutes, washed and dried to obtain modified corn stalks;

[0032] S2, adding waste polystyrene foam plastics into a pulverizer and pulverizing to a diameter of 0.5-1 cm to obtain pretreated polystyrene;

[0033]S3, by weight, 18 parts of modified corn stalks, 16 parts of nano-titanium dioxide, 3.2 parts of molybdenum disulfide, 8 parts of nano-aluminum hydroxide, 5 parts of nano-zinc stannate, 1 part of silane coupling agent KH-560, 1.2 parts Silane coupli...

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Abstract

A method of preparing a high-performance wood plastic composite by utilization of waste polystyrene is disclosed. The method includes a step of drying corn straw, smashing, sieving, dipping with an acid, and adding a silane coupling agent KH-550 and N,N-bis(2-hydroxyethyl) alkyl amine to obtain modified corn straw; a step of smashing waste polystyrene foam to obtain pretreated polystyrene; a step of fully mixing the modified corn straw, nanometer titanium dioxide, molybdenum disulfide, nanometer aluminium hydroxide, nanometer zinc stannate, a silane coupling agent KH-560, a silane coupling agent KH-570, a foaming agent, polytetrafluoroethylene, dicumyl peroxide and the pretreated polystyrene, maintaining the temperature at 140-155 DEG C for 2.5-5 min, and allowing the mixture to stand to obtain a preheated material; and a step of fully mixing the preheated material, nylon, polycarbonate, sulfonated polystyrene, benzotriazole, tris(2,4-ditert-butylphenyl) phosphite, pentaerythritol dioleate and butadiene styrene rubber, and performing hot press processing.

Description

technical field [0001] The invention relates to the technical field of wood-plastic composite materials, in particular to a method for preparing high-performance wood-plastic composite materials by using waste polystyrene. Background technique [0002] Combining the advantages of both wood and plastic, wood-plastic composites have good processability, high mechanical strength, water resistance and corrosion resistance, and have been widely used in the construction industry, automobile industry and other fields. Polystyrene has the advantages of transparency, good formability, good rigidity, good electrical insulation, easy dyeing, low hygroscopicity and low price. It has been widely used in packaging, electronics, construction, automobiles, home appliances, instruments, daily necessities and toys. Widely used, it is one of the plastics commonly used in the preparation of wood-plastic composite materials, but polystyrene is brittle, the impact strength is not high, and the fl...

Claims

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Application Information

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IPC IPC(8): C08L97/02C08L25/06C08L27/18C08L77/00C08L69/00C08L9/06C08K13/02C08K3/22C08K3/30C08K3/24C08K5/3447C08K5/526C08K5/103
Inventor 梁晓燕
Owner ANHUI GUANGYUAN TECH DEV
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