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Degradable antibacterial flocking-imitating composite material for automobile and preparation method of degradable antibacterial flocking-imitating composite material

A composite material and flocking imitation technology, which is applied in the field of degradable antibacterial flocking imitation composite material and its preparation field, can solve the problems of reduced production capacity, complicated process and high cost, so as to reduce carbon emissions, reduce processing steps, and reduce processing costs. Effect

Pending Publication Date: 2022-04-26
ZHEJIANG PRET NEW MATERIALS +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Automotive interior parts are usually covered with textile fabrics to enhance the high-end and luxurious feeling of the interior. However, the process is complicated, the production capacity is reduced, and the cost is high

Method used

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  • Degradable antibacterial flocking-imitating composite material for automobile and preparation method of degradable antibacterial flocking-imitating composite material

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Experimental program
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Effect test

Embodiment 1-5 and comparative example 1-4

[0047] (1) Dry the PLLA resin and PDLA resin until the moisture content is lower than 0.01%, then weigh them in a high-speed mixing machine according to the ratio of 1:1 and mix them for 10 minutes, and then put them into a twin-screw extruder at a processing temperature of 180 ℃, the host speed is 400rpm. Finally, the SCPLA resin particles are prepared by cooling in a water tank and pelletizing by a pelletizer.

[0048] (2) Dry the SCPLA resin particles until the moisture content is lower than 0.01%.

[0049] (3) Weigh the raw materials required in Table 1 in proportion, put them into a high-speed mixing machine for 10 minutes, and then put them into a twin-screw extruder. The processing temperature is 225°C, and the speed of the main machine is 400rpm. Finally, it can be cooled in a water tank and pelletized by a pelletizer.

[0050] The component of the degradable antibacterial imitation flocking composite material that table 1 automobile is used (component content is wei...

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Abstract

The invention discloses a degradable antibacterial flock-imitating composite material for automobiles and a preparation method thereof, and the degradable antibacterial flock-imitating composite material comprises the following components by weight: 45-65 parts of SCPLA resin; 35 to 55 parts of PBS resin; 1-4 parts of natural fiber; 1-4 parts of plant powder; 0.2 to 2 parts of an antibacterial agent; 0.2 to 3 parts of a processing aid; 0.1 to 1 part of an antioxidant; and 0.1-1 part of a light stabilizer. The invention has the following positive effects: 1, the SCPLA and PBS blended system has good rigid-tough balance performance, and is beneficial for replacing some automobile interior and exterior decoration materials; 2, both the SCPLA and the PBS have complete biodegradability; a flock-imitating effect is designed by combining a material formula with part textures, an interior trim part product coated with low-pressure injection molding fabric can be replaced, processing steps are reduced, and the processing cost is reduced. And reduction of carbon emission is facilitated. And 3, PLA and part of natural fibers have certain antibacterial activity, and a small amount of antibacterial agent is combined, so that the antibacterial effect of the prepared composite material on escherichia coli and staphylococcus aureus reaches 99.9%.

Description

technical field [0001] The invention relates to the technical field of polymer material modification, in particular to a degradable antibacterial flocking imitation composite material for automobiles and a preparation method thereof. Background technique [0002] With China's goal of carbon peaking by 2030 and carbon neutrality by 2060, the auto industry is facing the huge challenge of energy conservation and emission reduction, and how to reduce carbon emissions is on the agenda. The materials used in the interior and exterior parts of automobiles are mainly PP, ABS, PA and other general-purpose plastics produced by petrochemical industry. Replacing these general-purpose plastics with materials that emit less carbon will help advance carbon peaking and carbon neutrality in the automotive industry. Degradable materials are the most popular development direction at present. Among them, PLA and PBS are the best among degradable plastics. They have good processing performance ...

Claims

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Application Information

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IPC IPC(8): C08L67/02C08L67/04C08L97/02C08L1/02
CPCC08L67/02C08L67/04C08L2201/06C08L2205/16C08L97/02C08L1/02
Inventor 季诺周楠婷王溢冯钰璐周炳张锴蔡莹蔡青周文
Owner ZHEJIANG PRET NEW MATERIALS