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PVC plastic with self-antibacterial property and preparation method thereof

A performance and plastic technology, applied in the field of PVC plastic with self-antibacterial properties and its preparation, can solve the problems of biological safety doubts, harmfulness, poor dispersion and poor stability and durability, and achieve shortened processing cycle, wide sterilization range, and reduced The effect of melting point

Inactive Publication Date: 2019-12-03
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this technology uses nano-silver to enhance the antibacterial ability of nano-silica, and the silver metal ions produced by nano-silver are harmful to the human body, and the biological safety is questioned; and there are disadvantages such as poor dispersion, stability and durability.

Method used

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  • PVC plastic with self-antibacterial property and preparation method thereof
  • PVC plastic with self-antibacterial property and preparation method thereof
  • PVC plastic with self-antibacterial property and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] In parts by mass, the raw material formula of the PVC plastic sheet with self-antibacterial properties is as follows:

[0048]

[0049] During preparation, polyvinyl chloride, chlorinated polyethylene, nano-SiO 2 Filler, heat stabilizer, silane coupling agent, acrylate copolymer, calcium stearate, and paraffin are weighed according to the mass ratio of the formula. First, the silane coupling agent KH-460 was used for nano-SiO 2 The surface modification of the filler is carried out by first using deionized water to modify the nano-SiO 2 The filler is made into a slurry with a mass fraction of 10% and added to a three-necked flask using a magnetic stirring water bath (DF-101S, Shenzhen Dingxinyi Experimental Equipment Co., Ltd.) to heat up to 75 ° C. After stirring evenly, according to the above ratio A corresponding amount of silane coupling agent KH-460 was added, reacted at 75°C for 2 hours, and then the reacted slurry was filtered, dried, pulverized and sieved to...

Embodiment 2

[0052] The difference from Example 1 is that nano-CaCO is used in the raw material formula of this example. 3 As inorganic non-metallic nanofillers, other types of coupling agents, stabilizers, acrylate copolymers and different ratios, as well as other processing and molding methods are selected.

[0053] In parts by mass, the raw material formula of the PVC plastic sheet with self-antibacterial properties is as follows:

[0054]

[0055] During preparation, polyvinyl chloride, chlorinated polyethylene, nano-CaCO 3 Filler, heat stabilizer, aluminate coupling agent, acrylate copolymer, calcium stearate, and paraffin are weighed according to the mass ratio shown in the formula.

[0056] First, a coupling agent was used to synthesize nano-CaCO 3 The filler is surface modified, specifically, nano-CaCO2 is treated with deionized water. 3 The filler is made into a slurry with a mass fraction of 15% and added to a three-necked flask using a magnetic stirring water bath (DF-101S...

Embodiment 3

[0060] The difference from Example 1 is that nano-TiO is used in the raw material formula of this example. 2 As inorganic non-metallic nanofillers, other types of coupling agents, stabilizers, acrylate copolymers and different ratios were selected.

[0061] In parts by mass, the raw material formula of the PVC plastic sheet with self-antibacterial properties is as follows:

[0062]

[0063]

[0064] During preparation, polyvinyl chloride, chlorinated polyethylene, nano-TiO 2 Filler, heat stabilizer, titanate coupling agent TM-200S, acrylate copolymer (stone-plastic ACR), calcium stearate, and paraffin are weighed according to the mass ratio shown in the formula.

[0065] First, the coupling agent was used to 2 Surface modification of fillers, specifically using deionized water to transform nano-TiO 2 The DK405 filler is made into a slurry with a mass fraction of 20%, and is added to a three-necked flask using a magnetic stirring water bath (DF-101S, Shenzhen Dingxinyi...

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Abstract

The invention discloses PVC plastic with a self-antibacterial property and a preparation method thereof. According to the raw material formula, the PVC plastic is prepared from the components in partsby mass: 60-70 parts of polyvinyl chloride, 5-15 parts of chlorinated polyethylene, 10-20 parts of inorganic nonmetallic nanometer filler, 3-6 parts of a heat stabilizer, 9-12 parts of a coupling agent, 2-5 parts of acrylate copolymer, 0.5-0.8 part of calcium stearate, and 0.3-0.6 part of paraffin. A bactericidal substance of the PVC plastic is an inorganic nonmetallic nanomaterial with high safety, the bactericidal substance uniformly disperses in a PVC matrix material without adding additional bactericidal substances, use of the bactericidal substance is more convenient, long-term effectiveness is achieved, the bactericidal substance of the PVC plastic has no selectivity to bacterial species, and has a wide antibacterial spectrum; and a PVC plastic sheet has the advantages of being non-toxic, being non-irritating, being non-corrosive, long acting time, repeated use and being environmental-friendly, the preparation process is simple, and operation is easy.

Description

technical field [0001] The invention relates to an antibacterial PVC plastic, in particular to a PVC plastic with self antibacterial properties and a preparation method thereof. Background technique [0002] Polyvinyl chloride (PVC) is a thermoplastic resin polymerized by vinyl chloride under the action of an initiator. It is a homopolymer of vinyl chloride. The homopolymer of vinyl chloride and the copolymer of vinyl chloride are collectively referred to as vinyl chloride resin. Because of its non-flammable, high chemical resistance, good electrical insulation performance, stable physical and chemical properties, low price and other advantages, it has a very important position in industrial production and is widely used in industry, agriculture, transportation, construction, electronics, etc. Communication, household appliances, furniture, packaging and medical and health fields. It is also applied to infusion tubes, infusion bags, oxygen masks, toys, shoes, pipes, food pa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L23/28C08L33/04C08K13/06C08K9/06C08K3/36C08K3/26C08K3/22C08K9/04
CPCC08K2003/2241C08K2003/265C08K2201/011C08L27/06C08L2205/035C08L23/286C08L33/04C08K13/06C08K9/06C08K3/36C08K9/04C08K3/26C08K3/22
Inventor 牟文杰黄佳美赵良知
Owner SOUTH CHINA UNIV OF TECH
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