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Antibacterial and high-performance PS composite material and preparation method thereof

A composite material, high-performance technology, applied in the field of antibacterial high-performance PS composite material and its preparation, can solve the problems of poor compatibility between mica powder and PS matrix

Active Publication Date: 2017-03-08
ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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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 an antibacterial high-performance PS composite material and its preparation method to solve the problem of poor compatibility between mica powder and PS matrix

Method used

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  • Antibacterial and high-performance PS composite material and preparation method thereof
  • Antibacterial and high-performance PS composite material and preparation method thereof
  • Antibacterial and high-performance PS composite material and preparation method thereof

Examples

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preparation example Construction

[0041] The preparation method of above-mentioned any antibacterial high-performance PS composite material, comprises the following steps:

[0042] 1) Weigh 60-80 parts of PS, 20-40 parts of modified mica powder, 8-12 parts of antibacterial agent, 0.1-0.5 parts of antioxidant, 0.1-0.3 parts of lubricant, mix and Stir evenly to obtain a mixture;

[0043] 2) extruding and granulating the mixture obtained in step 1), to obtain the PS composite material.

[0044] Preferably, the step 2) specifically includes: putting the mixture obtained in the step 1) into the hopper of a twin-screw extruder for extrusion and granulation to obtain a PS composite material, wherein the twin-screw extruder Including six temperature zones arranged in sequence, the temperature of the first zone is 160-180°C, the temperature of the second zone is 200-240°C, the temperature of the third zone is 200-240°C, the temperature of the fourth zone is 200-240°C, and the temperature of the fifth zone is 200-240°C...

preparation example 1

[0051] Described modified mica powder, its preparation method is as follows:

[0052] 1) Weigh a certain amount of mica powder, acetone, dibenzoyl peroxide (BPO), and acrylic acid (AA); the mica powder is phlogopite, with a particle size of 5 μm-10 μm. The mass ratio of mica powder, acetone, BPO, and AA is 60:240:1:4, and BPO acts as an initiator.

[0053] 2) Add mica powder into a three-necked flask filled with acetone, add AA and BPO under rapid stirring, react at 60-80°C for 2-4h, filter the reaction product, and dry in an oven at 80-100°C for 6-8h , the obtained mica powder A after acrylic surface modification.

[0054] 3) Add A and polyethylene wax into the extruder according to a certain mass ratio to extrude and granulate to obtain the modified mica powder. The mass ratio of A and polyethylene wax is 40:6.

[0055] The extruder includes six temperature zones arranged in sequence, the temperature of the first zone is 140-160°C, the temperature of the second zone is 180-...

preparation example 2

[0057] Described modified mica powder, its preparation method is as follows:

[0058] 1) Weigh a certain amount of mica powder, acetone, dibenzoyl peroxide (BPO), and acrylic acid (AA); the mica powder is phlogopite, with a particle size of 5 μm-10 μm. The mass ratio of mica powder, acetone, BPO, and AA is 80:360:3:8, and BPO acts as an initiator.

[0059] 2) Add mica powder into a three-necked flask filled with acetone, add AA and BPO under rapid stirring, react at 60-80°C for 2-4h, filter the reaction product, and dry in an oven at 80-100°C for 6-8h , the obtained mica powder A after acrylic surface modification.

[0060] 3) Add A and polyethylene wax into the extruder according to a certain mass ratio to extrude and granulate to obtain the modified mica powder. The mass ratio of A and polyethylene wax is 60:12.

[0061] The extruder includes six temperature zones arranged in sequence, the temperature of the first zone is 140-160°C, the temperature of the second zone is 1...

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Abstract

The invention relates to an antibacterial and high-performance PS composite material and a preparation method thereof. The antibacterial and high-performance PS composite material is prepared by, by weight, 60-80 parts of PS, 20-40 parts of modified mica powder, 8-12 parts of antibacterial agent, 0.1-0.5 part of antioxidant and 0.1-0.3 part of lubricating agent. The reaction activity of acrylic acid is quite high, one end of the acrylic acid is highly-acidic carboxyl and can have chemical bonding with the surface of the mica powder to generate acrylate combined to the surface of the mica powder, the other end of the acrylic acid has double bonds and can have copolymerization or grafting reaction with unsaturated monomer or polymer, and accordingly the mica powder and polyethylene wax can be connected by the 'bridge' effect of the acrylic acid, and the polyethylene wax can firmly wrap the surface of the mica powder to form core-shell filler which uses the mica powder as the core and the polyethylene wax as the shell.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, in particular to an antibacterial high-performance PS composite material and a preparation method thereof. Background technique [0002] PS is an important general-purpose plastic with a wide range of applications, and its filling modification is of great significance. As one of the most common PS modified fillers, mica powder has the advantages of low price, wide range of sources, non-toxic and tasteless, high whiteness, low hardness, high chemical purity, good thermal stability, low oil absorption, etc. industry. [0003] The dispersion of mica powder in the matrix and whether the interface formed with the matrix is ​​good or not directly affects the comprehensive mechanical properties of the composite material. Although mica powder shows certain advantages and application prospects when filling modified PS, because the surface of mica powder is hydrophilic and oleophobic, its surfa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L25/06C08K13/06C08K9/10C08K9/04C08K3/34C08K3/08C08K5/134C08K5/526C08K5/13C08K5/098
CPCC08K3/08C08K3/34C08K5/098C08K5/13C08K5/1345C08K5/526C08K9/04C08K9/10C08K13/06C08K2003/0806C08K2201/014C08L25/06
Inventor 刘凯
Owner ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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