Antimicrobial low-warpage low-flash PPS composite material and preparation method thereof

A composite material, low warpage technology, applied in the field of polymer functional composite materials, can solve the problems of affecting antibacterial properties and mechanical properties, very high processing technology requirements, easy oxidation and discoloration of silver, etc., to achieve highly ordered atomic arrangement, antibacterial Significant effect, good antibacterial effect

Inactive Publication Date: 2017-09-22
GUANGZHOU SUPER DRAGON ENG PLASTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The invention adopts silver zirconium phosphate inorganic antibacterial agent or zeolite silver-loaded inorganic antibacterial agent, which has the common disadvantages of inorganic silver antibacterial agent: high cost; silver is easy to oxidize and discolor; easy to agglomerate and difficult to disperse, which affects antibacterial and mechanical properties;
High mold temperature and excellent fluidity lead to flashing in the production process, poor processing adaptability, very high requirements on molds, machines and processing technology, large material loss, and many post-processes

Method used

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  • Antimicrobial low-warpage low-flash PPS composite material and preparation method thereof
  • Antimicrobial low-warpage low-flash PPS composite material and preparation method thereof
  • Antimicrobial low-warpage low-flash PPS composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Weigh the raw materials except glass fiber according to the weight ratio in Table 1, mix them evenly and add them to the hopper of the twin-screw extruder, and at the same time feed the glass fiber from the side of the extruder, and then melt extrusion, water cooling, and air knife cooling , granulation and homogenization to obtain an antibacterial PPS composite material with low warpage and low flash. The processing technology is as follows: the temperature of the first zone of the twin-screw extruder is 250-260°C, the temperature of the second zone is 275-285°C, the temperature of the third zone is 280-290°C, the temperature of the fourth zone is 280-290°C, the temperature of the fifth zone is 265-275°C, and the temperature of the sixth zone is 265-275°C. Zone temperature 265~275℃, zone 7 temperature 255~265℃, zone 8 temperature 245~255℃, head temperature 285~295℃; screw speed 400~450r / min, vacuum: ≥600mmHg, cooling water temperature: 40~ 60°C, drying time 2~4h, dryin...

Embodiment 2

[0041] Weigh the raw materials except glass fiber according to the weight ratio in Table 1, mix them evenly and add them to the hopper of the twin-screw extruder, and at the same time feed the glass fiber from the side of the extruder, and then melt extrusion, water cooling, and air knife cooling , granulation and homogenization to obtain an antibacterial PPS composite material with low warpage and low flash. The processing technology is as follows: the temperature of the first zone of the twin-screw extruder is 250-260°C, the temperature of the second zone is 275-285°C, the temperature of the third zone is 280-290°C, the temperature of the fourth zone is 280-290°C, the temperature of the fifth zone is 265-275°C, and the temperature of the sixth zone is 265-275°C. Zone temperature 265~275℃, zone 7 temperature 255~265℃, zone 8 temperature 245~255℃, head temperature 285~295℃; screw speed 400~450r / min, vacuum: ≥600mmHg, cooling water temperature: 40~ 60°C, drying time 2~4h, dryin...

Embodiment 3

[0043] Weigh the raw materials except glass fiber according to the weight ratio in Table 1, mix them evenly and add them to the hopper of the twin-screw extruder, and at the same time feed the glass fiber from the side of the extruder, and then melt extrusion, water cooling, and air knife cooling , granulation and homogenization to obtain an antibacterial PPS composite material with low warpage and low flash. The processing technology is as follows: the temperature of the first zone of the twin-screw extruder is 250-260°C, the temperature of the second zone is 275-285°C, the temperature of the third zone is 280-290°C, the temperature of the fourth zone is 280-290°C, the temperature of the fifth zone is 265-275°C, and the temperature of the sixth zone is 265-275°C. Zone temperature 265~275℃, zone 7 temperature 255~265℃, zone 8 temperature 245~255℃, head temperature 285~295℃; screw speed 400~450r / min, vacuum: ≥600mmHg, cooling water temperature: 40~ 60°C, drying time 2~4h, dryin...

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Abstract

The invention discloses an antimicrobial low-warpage low-flash PPS composite material and a preparation method thereof. The material is prepared from, by weight, 31.5-48% of PPS resin, 6-12% of PPE resin, 40-45% of glass fibers, 8-12% of antimicrobial agent, 0.5-1% of nucleating agent, 0.4-0.5% of antioxidant and 0.5-0.6% of lubricating agent. An engineering plastic, namely PPS, serves as a main body, the PPE resin, the glass fibers, the antimicrobial agent, the nucleating agent the antioxidant and the lubricating agent are added, the raw materials are mixed together and melted through a double-screw extruder, and then the antimicrobial low-warpage low-flash PPS composite material which is capable of meeting the antimicrobial requirements of household appliances is prepared. The material has the advantages of being antimicrobial, low in warpage and low in flash on the basis of ensuring the original excellent mechanical performance, heat resistance, fire resistance and electrical performance of PPS.

Description

technical field [0001] The invention belongs to the field of polymer functional composite materials, and in particular relates to an antibacterial low warpage and low flash PPS composite material and a preparation method thereof. Background technique [0002] PPS has excellent electrical properties, heat resistance, chemical resistance, flame retardancy and mechanical properties, and is often used in household appliances such as microwave oven swivels, water heater kits, hair straighteners, electric oven parts, and electric iron bases. With the improvement of the quality of life, antibacterial PPS materials will become a new development trend. [0003] At present, the antibacterial agents commonly used in plastics are divided into two categories: 1. Inorganic silver antibacterial agents, which slowly release antibacterial ions through the carrier to achieve the purpose of antibacterial. This type of antibacterial agent has the characteristics of low toxicity, durability, sa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L81/02C08L71/12C08K13/06C08K9/06C08K7/14C08K7/08B29C47/92B29C48/92
CPCC08L81/02B29C48/92B29C2948/9258B29C2948/92704C08K2201/003C08K2201/006C08L2201/02C08L2201/08C08L2205/24C08L71/12C08K13/06C08K9/06C08K7/14C08K7/08
Inventor 郝建鑫曾德明黄泽彬郝源增陈瑜邓爵安任萍李齐添
Owner GUANGZHOU SUPER DRAGON ENG PLASTICS
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