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Preparation method of bamboo powder/montmorillonoid/polyvinyl chloride composite material

A technology of polyvinyl chloride and composite materials, applied in the field of preparation of bamboo powder/montmorillonite/polyvinyl chloride composite materials, can solve the problem of affecting the physical and mechanical properties of composite materials, affecting the application of bamboo/plastic composite materials, bamboo powder and plastics Low compatibility and other problems, to achieve the effect of easy industrial mass production, improved mechanical properties, and simple and easy preparation method

Inactive Publication Date: 2017-02-22
LONGYAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the defect that exists is: the compatibility of bamboo powder and plastic is relatively low, and the interfacial binding force is poor, so have influenced the overall physical and mechanical property of composite material, thus have influenced the application of bamboo / plastic composite material

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The present embodiment does not add montmorillonite, and intends to prepare bamboo powder / polyvinyl chloride composite material as a performance comparison; its raw materials include 30 parts of bamboo powder and 100 parts of polyvinyl chloride by mass ratio, and the operation steps are as follows:

[0020] (1) Bamboo powder was dried for 24 hours at 80°C in a vacuum oven;

[0021] (2) The bamboo powder of above-mentioned steps (1) is joined in the high mixer, then add 100 parts of polyvinyl chloride, mix 5 minutes, discharge;

[0022] (3) When extruding and granulating in the twin-screw extruder, the temperature of each section from the hopper to the machine head is set to 160, 165, 170, 175, 180, 180, 180, 175°C, and the screw speed is 50r / min. Granulation after extrusion;

[0023] (4) Dry the pellets in a 100°C vacuum oven for 4 hours, and prepare various standard specimens for testing with an injection molding machine. During injection, the temperature from the fir...

Embodiment 2

[0027] The raw material of the present embodiment comprises 30 parts of bamboo powder by mass ratio, 100 parts of polyvinyl chloride, 6 parts of montmorillonite, and concrete operation steps are as follows:

[0028] (1) Bamboo powder was dried for 24 hours at 80°C in a vacuum oven;

[0029] (2) Dry the montmorillonite in a vacuum oven at 80°C for 24 hours;

[0030] (3) The bamboo powder of above-mentioned steps (1) is joined in the high mixer, then add 6 parts of montmorillonite and 100 parts of polyvinyl chloride in step (1) in the high mixer, mix 5 minutes, discharge;

[0031] (4) When extruding and granulating in the twin-screw extruder, the temperature of each section from the hopper to the machine head is set to 160, 165, 170, 175, 180, 180, 180, 175°C, and the screw speed is 50r / min. Granulation after extrusion;

[0032] (5) Dry the pellets in a 100°C vacuum oven for 4 hours, and use an injection molding machine to prepare various standard specimens for testing. During...

Embodiment 3

[0036] The raw materials of this embodiment include 30 parts of bamboo powder, 100 parts of polyvinyl chloride, 6 parts of montmorillonite, and 1 part of coupling agent by mass ratio. The specific operation steps are as follows:

[0037] (1) Bamboo powder was dried for 24 hours at 80°C in a vacuum oven;

[0038] (2) Dry the montmorillonite in a vacuum oven at 80°C for 24 hours;

[0039] (3) Add the bamboo powder of the above step (1) into the high mixer, add the solution mixed with absolute ethanol and silane coupling agent according to the ratio of 1:2 and spray it on the bamboo powder, after that, add In step (1), 6 parts of montmorillonite and 100 parts of polyvinyl chloride were mixed for 5 minutes and discharged;

[0040] (4) When extruding and granulating in the twin-screw extruder, the temperature of each section from the hopper to the machine head is set to 160, 165, 170, 175, 180, 180, 180, 175°C, and the screw speed is 50r / min. Granulation after extrusion;

[0041...

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Abstract

The invention discloses a preparation method of a bamboo powder / montmorillonoid / polyvinyl chloride composite material. The bamboo powder / montmorillonoid / polyvinyl chloride composite material is prepared from raw materials, including 20-50 parts of bamboo powder, 100 parts of polyvinyl chloride, 1-20 parts of montmorillonoid, 0-2 parts of a KH550 silane coupling agent and 0-15 parts of maleic anhydride grafted polypropylene with a melt intercalation method through a double-screw extruder. The method comprises operation steps as follows: the bamboo powder and the montmorillonoid are dried, mixed in a high-speed mixer and extruded and granulated in the double-screw extruder, granules are dried and subjected to injection molding in an injection molding machine, and products are tested. The preparation environment is friendly, operation is simple and convenient, and the bamboo powder / montmorillonoid / polyvinyl chloride composite material is good in overall performance and stable in quality.

Description

technical field [0001] The invention relates to a preparation method of a composite material, in particular to a preparation method of a bamboo powder / montmorillonite / polyvinyl chloride composite material. Background technique [0002] Bamboo powder / plastic composite material (referred to as bamboo / plastic composite material) is a new type of composite material formed by compounding thermoplastics as a matrix, using bamboo fiber as a filling and reinforcing material, and compounding through different methods and processes. It breaks through the limitations of traditional bamboo applications, realizes the high-quality and high-value-added utilization of bamboo, combines the advantages of bamboo and plastic materials, can replace wood and some plastics, and has a very wide range of uses. The application fields involve the automobile industry and transportation industry, construction industry, packaging industry, furniture and decoration industry, office equipment and sports eq...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L97/02C08L51/06C08K3/34C08K5/544B29B9/06B29C45/78B29C47/92B29C48/92
CPCB29B9/06B29C45/78B29C2945/76531B29C48/92B29C2948/92704C08L27/06C08L2201/08C08L2205/03C08L97/02C08L51/06C08K3/346C08K5/544
Inventor 董雁
Owner LONGYAN UNIV
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