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Preparation method of PLA modified material

A modified material and modified technology, applied in the field of PLA materials, can solve the problems of not easy to degrade, poor flame retardant effect, not environmentally friendly, etc.

Pending Publication Date: 2021-09-07
福建凯基高分子材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the shortcomings of poor flame retardant effect, not easy to degrade and not environmentally friendly in the prior art, and propose a preparation method of PLA modified materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A kind of preparation method of PLA modified material that the present invention proposes, comprises the following steps:

[0028] S1. Prepare the following components and their respective mass percentages: 22 parts of PLA, 22 parts of polyamide resin, 19 parts of carbon fiber, 13 parts of sodium perborate, 11 parts of montmorillonite, and 12 parts of diphenylmethane diisocyanate , 9 parts of activated carbon, 9 parts of modified nano titanium dioxide, 8 parts of polyol, 6 parts of polyvinyl alcohol, 3 parts of ultraviolet absorber, 3 parts of flame retardant, 2 parts of plasticizer, 1 part of antibacterial agent, 0.5 part of initiator ;

[0029] S2. Add the PLA, polyamide resin, montmorillonite, diphenylmethane diisocyanate and polyvinyl alcohol in step S1 to the ultrasonic disperser, disperse for 20min at a speed of 800r / h, and then transfer to mixing In the machine, sequentially add modified nano-titanium dioxide, carbon fiber, and activated carbon, stir evenly, and...

Embodiment 2

[0034] A kind of preparation method of PLA modified material that the present invention proposes, comprises the following steps:

[0035] S1. Prepare the following components and their respective mass percentages: 24 parts of PLA, 23 parts of polyamide resin, 19.5 parts of carbon fiber, 14 parts of sodium perborate, 12 parts of montmorillonite, and 12.5 parts of diphenylmethane diisocyanate , 10 parts of activated carbon, 10 parts of modified nano titanium dioxide, 8.5 parts of polyol, 7 parts of polyvinyl alcohol, 4 parts of ultraviolet absorber, 4 parts of flame retardant, 3 parts of plasticizer, 1.5 parts of antibacterial agent, 1 part of initiator ;

[0036] S2. Add the PLA, polyamide resin, montmorillonite, diphenylmethane diisocyanate and polyvinyl alcohol in step S1 to the ultrasonic disperser, disperse for 25min at a speed of 850r / h, and then transfer to mixing In the machine, add modified nano-titanium dioxide, carbon fiber, and activated carbon in sequence, stir eve...

Embodiment 3

[0041] A kind of preparation method of PLA modified material that the present invention proposes, comprises the following steps:

[0042] S1. Prepare the following components and their respective mass percentages: 26 parts of PLA, 24 parts of polyamide resin, 20 parts of carbon fiber, 15 parts of sodium perborate, 13 parts of montmorillonite, and 13 parts of diphenylmethane diisocyanate , 12 parts of activated carbon, 12 parts of modified nano titanium dioxide, 9 parts of polyol, 8 parts of polyvinyl alcohol, 5 parts of ultraviolet absorber, 5 parts of flame retardant, 4 parts of plasticizer, 2 parts of antibacterial agent, 1.3 parts of initiator ;

[0043] S2. Add the PLA, polyamide resin, montmorillonite, diphenylmethane diisocyanate and polyvinyl alcohol in step S1 to the ultrasonic disperser, disperse for 30min at a speed of 900r / h, and then transfer to mixing In the machine, sequentially add modified nano-titanium dioxide, carbon fiber, and activated carbon, stir evenly,...

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PUM

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Abstract

The invention discloses a preparation method of a PLA modified material. The method comprises the following steps: S1, preparing the following raw materials in parts by mass: 22 to 30 parts of PLA, 22 to 26 parts of polyamide resin, 19 to 21 parts of carbon fiber, 13 to 17 parts of sodium perborate, 11 to 15 parts of montmorillonite, 12 to 14 parts of diphenylmethane diisocyanate, 9 to 14 parts of activated carbon, 9 to 14 parts of modified nano titanium dioxide, 8 to 10 parts of polyol, 6 to 10 parts of polyvinyl alcohol, 3 to 7 parts of an ultraviolet light absorber, 3-7 parts of a flame retardant, 2-6 parts of a plasticizer, 1-3 parts of an antibacterial agent and 0.5-2 parts of an initiator; and S2, adding the PLA, the polyamide resin, the montmorillonite, the diphenylmethane diisocyanate and the polyvinyl alcohol in the step S1 into an ultrasonic dispersion machine. The flame-retardant rubber has the advantages of excellent flame-retardant effect, high tensile strength and wear resistance, long service cycle and environmental friendliness.

Description

technical field [0001] The invention relates to the technical field of PLA materials, in particular to a preparation method of PLA modified materials. Background technique [0002] Plastic is one of the greatest inventions of mankind in the 20th century. Its application involves all aspects of human production and life, and it is one of the most important materials. However, due to the non-degradable characteristics of traditional petroleum-based plastics, their use has brought huge damage to the environment, and plastic fragments cannot be degraded, which greatly affects the natural ecological cycle. [0003] The development of biodegradable plastics will be able to solve this problem. Biodegradable plastics refer to plastic materials that can degrade in nature. In a natural burial or composting environment with sufficient humidity, oxygen and appropriate microorganisms, it can be metabolized and decomposed by microorganisms to produce water and carbon dioxide, which has ...

Claims

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Application Information

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IPC IPC(8): C08L67/04C08L77/00C08L29/04C08K9/06C08K9/04C08K7/06C08K7/24C08K3/22C08K5/29C08K3/34C08K5/03C08K3/26
CPCC08L67/04C08L77/00C08K2201/011C08K2003/2241C08L2201/02C08K2003/2224C08K2003/2227C08L29/04C08K9/06C08K9/08C08K7/06C08K7/24C08K3/22C08K5/29C08K3/346C08K5/03C08K3/26C08K3/2279C08K3/34
Inventor 张文俊
Owner 福建凯基高分子材料股份有限公司
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