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Plant straw reinforced polyolefin composite material and manufacturing method thereof

A plant straw and composite material technology, which is applied in the field of composite material manufacturing, can solve the problems of waste polyolefin plastic environmental white pollution, difficult manufacturing process, and high production cost, and achieve the effects of stable size, reduced production cost, and simplified manufacturing process

Inactive Publication Date: 2017-11-28
蒋寿悟
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a plant straw reinforced polyolefin composite material, which solves the problem of a large amount of waste caused by insufficient utilization of plant straw and environmental pollution caused by incineration, and the problem of white pollution caused by waste polyolefin plastics to the environment
[0005] Another object of the present invention is to provide a preparation method for the above-mentioned composite material, which solves the problems of difficult manufacturing process and high production cost

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Step 1: Grinding the wheat straw into a 20-mesh wheat straw powder in a pulverizer, and then putting it into a drying equipment for drying for later use; sorting the recycled polyvinyl chloride, and then crushing it into plastic pellets, Washing and drying for subsequent use, so that the moisture content of wheat straw powder and plastic pellets is less than 5%;

[0025] Step 2: Weigh the wheat straw as 70% according to the weight percentage, and the recovered polyvinyl chloride is 30%, and the total weight percentage is 100%. In addition, the processing aid phthalic anhydride to be added is weighed as plant straw and 3% of the total weight of recycled polyolefin plastics, 1% of stearic acid;

[0026] Step 3; 3% of the processing aid phthalic anhydride weighed in step 2, 1% stearic acid and the weighed wheat straw powder were premixed in a high-speed mixer for 20 minutes, and then added in step 2. The amount of reclaimed polyvinyl chloride pellets continued to mix for ...

Embodiment 2

[0031] According to the following steps and specific parameters to implement,

[0032] Step 1: Grind rapeseed stalks in a grinder to 20-mesh rapeseed stalk powder, and then put them into drying equipment for drying for later use; sort the recycled polyethylene, and then use a plastic crusher to crush them into plastic pellets, wash them , drying for subsequent use, so that the moisture content of the rapeseed stalk powder and polyethylene plastic pellets is less than 5%;

[0033] Step 2: Weigh the rapeseed stalk as 50% according to the weight percentage, and the recycled polyethylene is 50%, and the total weight percentage is 100%, and then weigh the processing aid polyethylene wax to be added as the rapeseed stalk and recycled 1% of the total weight of polyethylene, 1% of stearic acid;

[0034] Step 3: 1% polyethylene wax, 1% stearic acid and the weighed rapeseed stalk powder weighed in step 2 were premixed in a high-speed mixer for 20 minutes, then added the weighed recycle...

Embodiment 3

[0039] Step 1: Grind rapeseed stalks and wheat straws in a grinder to 20-mesh rapeseed stalks and wheat straw powder, and then put them into drying equipment for drying for later use; recover polyethylene for sorting, and then use a plastic crusher to Crushing into plastic pellets, washing and drying for later use, so that the moisture content of rapeseed stalks, wheat straw powder and plastic pellets is less than 5%;

[0040] Step 2: according to weight percentage, the rapeseed stalk is weighed to be 30%, the wheat straw is 30%, the recycled polyethylene is 40%, and the total weight percentage is 100%, and the phthalic anhydride to be added is weighed in addition as 2% of the total weight of plant straw and recycled polyolefin plastics, 1% of polyethylene wax;

[0041] Step 3: Premix 1% polyethylene wax and 2% phthalic anhydride weighed in step 2 with rapeseed stalk powder and wheat straw powder in a high-speed mixer for 20 minutes, then add the 2. Continue mixing the weighe...

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Abstract

The invention discloses a plant straw reinforced polyolefin composite material and a preparation method thereof. The composite material is composed of natural plant straw, polyolefin plastic and processing aids, wherein the plant straw is 50% to 70%, and the polyolefin plastic is 30%. % to 50%, the total is 100%, and the processing aid is 2% to 5% of the total weight of plant straw and recycled polyolefin plastics. For plant straw, use wheat straw or rapeseed stalk or a mixture of the two; for polyolefin plastics, use recycled waste polyvinyl chloride or polyethylene, or a mixture of the two; processing aids include coupling agents, compatibilizers, and lubricants. Any combination of two or three. The preparation method of the present invention is that the plant straw is crushed and dried, mixed with a processing aid, then blended with polyolefin pellets, pelletized, extruded, cooled and shaped, dragged and cut into a plastic wood material of a certain specification. The composite material prepared by the invention has the appearance of wooden products and the processing characteristics of plastic-wood materials, and has a wide range of applications.

Description

technical field [0001] The invention belongs to the technical field of composite material manufacturing, and in particular relates to a plant straw reinforced polyolefin composite material, and also relates to a manufacturing method of the composite material. Background technique [0002] Wood-plastic composite material is a new material, which has the properties of both wood and plastic, and has received more and more attention. Wood-plastic composite material can be recycled and processed repeatedly, has certain biodegradability, and is a new type of environmentally friendly material. [0003] my country's timber resources are poor, and my country's annual output of crop straw is more than 1 billion tons. Crop straws used as plastic-wood composite materials have been involved, but they are mainly concentrated in rice husks, bamboo, cotton stalks, etc. Plastic-wood composite materials made of wheat straw and rapeseed stalks are rarely reported. Wheat straw and rapeseed st...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L97/02C08L23/06C08L27/06C08K5/1539C08K5/09
CPCC08L97/02C08L23/06C08L27/06C08L2201/06C08L2205/03C08L2207/20C08K5/1539C08K5/09
Inventor 蒋寿悟
Owner 蒋寿悟
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