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Anti-bacterial polythene foamed plastics and preparation method thereof

A technology of foamed plastics and polyethylene, applied in fiber types, textiles and papermaking, fiber treatment, etc., can solve the problems of complex manufacturing process, unsatisfactory antibacterial plastic antibacterial effect, etc., and achieve simple and convenient equipment operation, good sterilization and antibacterial effect, the effect of improving mechanical properties

Inactive Publication Date: 2011-02-09
ZHEJIANG SCI-TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems of unsatisfactory antibacterial effect and complex manufacturing process of antibacterial plastics on the market, the present invention provides an antibacterial polyethylene foam plastic with high antibacterial rate and excellent mechanical properties

Method used

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  • Anti-bacterial polythene foamed plastics and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] a. Melt blending: first raise the temperature of the two-roll mill to 115°C, and then mix the dry polyethylene (PE-M-18D) and ethylene-vinyl acetate copolymer (EVA18-3) at 70: After mixing with a mass ratio of 30 to obtain 935g of the mixture, add it into a double-roller mill and knead for 5min, then cut 5g into 3mm silver-plated nylon fibers (resistivity<10Ω cm, Shanghai Pusheng Gold and Silver Silk Textile Co., Ltd.) In the refining machine, kneading 5min, then the zinc stearate of 10g (Wenzhou City Chemical Materials Factory), the azodicarbonamide of 40g (Hangzhou Haihong Fine Chemical Co., Ltd. provides), the diisopropyl peroxide of 10g Benzene (provided by Shanghai Lingfeng Chemical Reagent Co., Ltd.) was sequentially added into the open mill and kneaded for 3 minutes, then sliced ​​and cut into sheet-like samples.

[0044] b. Molding and foaming: place the above-mentioned sheet samples at room temperature for 24 hours, and then perform molding and foaming on a fla...

Embodiment 2

[0046] a. Melt blending: first raise the temperature of the two-roll mill to 115°C, and then mix the dry polyethylene (PE-M-18D) and ethylene-vinyl acetate copolymer (EVA18-3) at 70: After mixing at a mass ratio of 30 to obtain 930g of the mixture, add it to a double-roller mill and knead for 8 minutes, then cut 10g into 3mm silver-plated nylon fibers (resistivity<0.1Ω·cm, Shanghai Pusheng Gold and Silver Silk Textile Co., Ltd.) In the mill, knead for 5min, then pass 10g of zinc stearate (Wenzhou Chemical Material Factory), 40g of azodicarbonamide (Hangzhou Haihong Fine Chemical Co., Ltd.), 10g of cross-linking agent Dicumyl oxide (provided by Shanghai Lingfeng Chemical Reagent Co., Ltd.) was sequentially added into the open mill, mixed for 2 minutes while adding, and then sliced, and cut into sheet-like samples.

[0047] b. Molding and foaming: place the above-mentioned sheet samples at room temperature for 24 hours, and then perform molding and foaming on a flat vulcanizer. ...

Embodiment 3

[0049]a. Melt blending: first raise the temperature of the two-roll mill to 115°C, and then mix the dry polyethylene (PE-M-18D) and ethylene-vinyl acetate copolymer (EVA18-3) at 70: After mixing at a mass ratio of 30 to obtain 910g of the mixture, add it to a double-roller mill and knead for 5 minutes, then cut 30g into 3mm silver-plated nylon fibers (resistivity<0.1Ω·cm, Shanghai Pusheng Gold and Silver Silk Textile Co., Ltd.) In the mill, knead for 5min, then mix 10g of zinc stearate (Wenzhou Chemical Materials Factory), 40g of azodicarbonamide (Hangzhou Haihong Fine Chemical Co., Ltd.), 10g of diisoperoxide Propylbenzene (provided by Shanghai Lingfeng Chemical Reagent Co., Ltd.) was sequentially added into the open mill, mixed for 3 minutes while adding, and then sliced, and cut into sheet samples.

[0050] b. Molding and foaming: place the above-mentioned sheet samples at room temperature for 24 hours, and then perform molding and foaming on a flat vulcanizer. The temperat...

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Abstract

The invention discloses anti-bacterial polythene foamed plastics. The anti-bacterial polythene foamed plastics is made from the following raw materials in percentage by mass: 80.5 to 96.5 percent of base material, 0.5 to 5 percent of silver-plated fibers, 0.5 to 2 percent of cross linking agent, 2 to 10 percent of foaming agent and 0.5 to 2.5 percent of foaming promoter, wherein the base material comprises two polymers, namely polythene and ethylene-vinyl acetate copolymer. The anti-bacterial polythene foamed plastics has high antibacterial property, mechanical property and wide application range. The invention also discloses a preparation method for the anti-bacterial polythene foamed plastics. Process conditions of the method are easy to control; equipment is simple and convenient to operate; and the method has low requirement on mechanical equipment and is suitable for industrial production.

Description

technical field [0001] The invention relates to the field of organic polymer materials, in particular to an antibacterial polyethylene foam and a preparation method thereof. Background technique [0002] With the improvement of the country's comprehensive national strength, people's living standards have also been greatly improved, and people's health awareness is also increasing. Foam plastic products are widely used in people's daily life and industrial and agricultural production, and occupy a very important position. Ordinary foam plastics currently on the market have no antibacterial effect, and antibacterial plastics generally use inorganic silver ions as antibacterial agents, which are absorbed into inorganic nanoparticles such as activated carbon, montmorillonite, algae, etc., and then added to polymers Extrusion molding to form antibacterial plastics; or use titanium dioxide nano powder to mix with plastics, extrusion molding, and form antibacterial plastics throug...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M101/34C08K5/14C08L23/06C08L23/08C08L77/00D06M11/83C08J9/10D06M101/32C08L67/00
Inventor 陈海相王炳辉茅文良汪磊
Owner ZHEJIANG SCI-TECH UNIV
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