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Anti-static wheat-straw wood-plastic composite material and preparation method thereof

A wood-plastic composite material and antistatic technology, which is applied in the field of antistatic straw wood-plastic composite materials, can solve the problems that the adhesive cannot play a good connection role and the performance of the board is unstable, and achieve high mixing uniformity of raw materials , Stirring and mixing efficiency is high, and the process conditions are easy to control

Inactive Publication Date: 2016-12-07
ANHUI GUOFENG WOOD PLASTIC COMPOSITE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In terms of wheat straw utilization, it is used for handicrafts and simple decorative materials. Although there are more and more researches on straw-based panels in recent years, and a small The waxy layer and xylem of various adhesives cannot play a good connection role, making the performance of the board unstable

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Example 1 Antistatic straw wood-plastic composite material

[0024] An antistatic straw wood-plastic composite material, comprising the following raw materials in parts by weight:

[0025] 20-70 parts of wood fiber material, 50-150 parts of polypropylene resin, 3-10 parts of coupling agent, 5-30 parts of antistatic agent, 2-6 parts of lubricant, 10-30 parts of calcium carbonate, 0.1- 1 part, 3-5 parts of other additives.

[0026] The lignocellulosic material is made by putting wheat straw into a mill and grinding it into fibers. After sieving, 20-60 mesh particles are obtained, and then dried in an oven for 24 hours at a temperature of 110° C., so that the average weight of the wood powder is The moisture content is kept below 1%.

[0027] The coupling agent is one or more of titanate coupling agent and silane coupling agent.

[0028] Described lubricant is one or more in paraffin, stearic acid, zinc stearate, calcium stearate.

[0029] The antistatic agent is silan...

Embodiment 2

[0042] 1) Soak the wheat straw in 20% sodium hydroxide for 3 hours, pretreatment temperature is 110°C, put it in 60°C for dehydration and drying, then put the wheat straw into a mill and grind it into fibers, after sieving The 50-mesh particles are obtained, and then dried in an oven at a temperature of 110° C. for 24 hours, so that the average moisture content of the wood powder is kept below 1%.

[0043] 2) Place the wood flour, resin powder and coupling agent in the dry-processed formula weight portion in a high-speed mixer and mix until they are evenly mixed. The stirring temperature is 100°C and the stirring time is 8 minutes to obtain a hot mixed Material, spare.

[0044] Raw material formula: 50 parts of wood flour, 100 parts of polypropylene resin, 5 parts of silane coupling agent.

[0045] 3) Place the hot mix obtained in requirement 2) in a cold mixer to cool, and after the temperature of the hot mix drops to 40°C, add antistatic agents, lubricants and other additiv...

Embodiment 3

[0051]1) Soak wheat straw in 20% sodium hydroxide for 3 hours, pretreatment temperature is 110°C, put it in 60°C for dehydration and drying, then put wheat straw into a mill and grind it into fibers, after sieving The 60-mesh particles are obtained, and then dried in an oven at a temperature of 110°C for 24 hours, so that the average moisture content of the wood powder is kept below 1%.

[0052] 2) Place the wood powder, resin powder and coupling agent in the dry-processed formula weight portion in a high-speed mixer and heat and mix until uniform. The stirring temperature is 110°C and the stirring time is 10 minutes to obtain a hot mixed Material, spare.

[0053] Raw material formula: 70 parts of wood fiber material, 150 parts of polypropylene resin, 10 parts of silane coupling agent,.

[0054] 3) Place the hot mix obtained in requirement 2) in a cold mixer to cool, and after the temperature of the hot mix drops to 40°C, add antistatic agents, lubricants and other additives ...

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Abstract

The invention provides an anti-static wheat-straw wood-plastic composite material and a preparation method thereof. The anti-static wheat-straw wood-plastic composite material is characterized by being prepared from, by weight, 20-70 parts of lignocellulosic material, 50-150 parts of polypropylene resin, 3-10 parts of coupling agent, 5-30 parts of antistatic agent, 2-6 parts of lubricating agent, 10-30 parts of calcium carbonate, 0.1-1 part of antioxidant and 3-5 parts of other additives. The preparation method comprises the steps that the lignocellulosic material, wood-plastic powder and the coupling agent are put in a high-speed mixer, thermal stirring and mixing are conducted to be uniform, and a thermal mixed material is obtained; the thermal mixed material is put in a cooling mixer to be cooled, the antistatic agent, the lubricating agent and other additives are added into the cooling mixer by weight after the temperature of the thermal mixed material is decreased to 40 DEG C, all the materials are put into a screw extruder after being stirred and mixed to be uniform, extrusion is conducted, and the anti-static wheat-straw wood-plastic composite material is obtained. According to the wood-plastic composite material, waste wheat straw serves as the lignocellulosic raw material, and by means of pretreatment and formula optimization, the obtained wood-plastic composite material is excellent in property and good in marketization prospect.

Description

technical field [0001] The invention is an antistatic straw wood-plastic composite material, which relates to the field of wood-plastic composite materials, antistatic polypropylene-based wood-plastic composite materials and a preparation method thereof. Background technique [0002] The high insulation, corrosion resistance and water resistance of most plastics and polymer materials make them have broad application space in industrial, agricultural and high-tech fields. However, high insulation also brings electrostatic hazards to plastics from the opposite side. Wood-plastic composite materials also have the same characteristics, so the antistatic property of wood-plastic composite materials is our concern. When wood-plastic composite materials are used in high-end apartments, sanatoriums, office buildings, and villas as building materials, decoration materials, and furniture, the dust on the surface is a major drawback, which greatly affects their appearance. The most w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L97/02C08L91/06C08L33/04C08K13/06C08K3/26C08K5/10C08K5/54C08K5/09C08K5/098C08K3/04C08K9/06C08K5/134B29B7/00
CPCC08L23/12B29B7/005C08L2201/04C08L2205/035C08L2205/16C08L97/02C08L91/06C08L33/04C08K13/06C08K2003/265C08K5/10C08K5/54C08K5/09C08K5/098C08K3/04C08K9/06C08K5/1345
Inventor 方晓钟肖磊马岩姚红焱高威威李丰奎贾红滢
Owner ANHUI GUOFENG WOOD PLASTIC COMPOSITE
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