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A kind of antibacterial polyethylene foam plastics and preparation method thereof

A technology of foamed plastics and polyethylene, applied in the field of antibacterial polyethylene foamed plastics and its preparation, achieving the effects of simple and easy preparation methods, easy industrial production, and mild reaction conditions

Active Publication Date: 2011-12-21
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In view of the defects in the prior art mentioned above, one of the purposes of the present invention is to provide a kind of antimicrobial polyethylene foam material composition, has advantages such as better washability, safety and reliability, not easy to change color, to meet the increasingly urgent needs from all aspects of production and life

Method used

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  • A kind of antibacterial polyethylene foam plastics and preparation method thereof

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preparation example Construction

[0042] One, the preparation of compound antibacterial agent

[0043] 1. Composite antibacterial agent 1: Preparation of polyhexamethylene guanidine propionate / polyzinc silicate composite antibacterial agent

[0044] Weigh 100.0 g (0.465 mol) of polyhexamethylene guanidine propionate (Shanghai Gaoju F3000), add it to 300 mL deionized water solution, stir to dissolve it, and call it solution A; (2) is also called sodium silicate (Chemically pure) 70.0g (0.246mol), added to 300mL deionized water, stirred to dissolve, called solution B; (3) at room temperature (about 25°C), mix solution A and solution B, and fully Stir for 30 minutes to form solution C; (4) weigh ZnSO 4 (Chemically pure) 180.0g (0.626mol), slowly poured into solution C, and vigorously stirred for 5min, the precipitate was filtered, dried, and pulverized to obtain polyhexamethylene guanidine propionate / polysilicate zinc composite antibacterial agent; wherein the molar ratio of polyhexamethylene guanidine propiona...

Embodiment 1～11

[0048] Put the polyethylene matrix resin material, composite antibacterial agent, AC foaming agent, antioxidant 1010, antioxidant 168, silicon dioxide, and white oil into a high-speed mixer, and stir at a high speed until the mixture is uniform, and it will be released after 1 to 3 minutes. material. Use a double-roller masticator to masticate the mixed materials at 155°C to 165°C, pass through for 5 to 10 minutes, and then release the sheet, then use a molding machine to mold and foam to form a 3mm thick sheet (the foaming temperature is 230°C), cut into the required sample size, and carry out the antibacterial performance test or boiling antibacterial performance test.

[0049] The above materials are all based on 100 parts by weight of polyethylene matrix resin, antioxidant 1010 and antioxidant 168 are used in combination, and the weight ratio is 1:1. The specific formulations of other components are shown in Table 1. The antibacterial performance test results before and a...

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Abstract

The invention relates to an antibacterial polyethylene foamed plastic and a preparation method thereof. The composition provided by the invention comprises blended polyethylene base resin, a composite antibacterial agent and a chemical foaming agent, wherein in terms of 100 parts by weight of polyethylene, the amount of the composite antibacterial agent is 0.2-2 parts by weight; the polyethylene base resin is selected from polyethylene with high melt strength or linear low-density polyethylene with a long chain branch structure; and the composite antibacterial agent is a polyguanidine / polysilicate composite antibacterial agent, which is prepared by mixing an aqueous solution of a water-soluble polyguanidine inorganic acid salt or organic acid salt with an aqueous solution of a water-soluble silicate and adding an aqueous solution of a water-soluble metal salt, the molar ratio of the water-soluble polyguanidine inorganic acid salt or organic acid salt to the water-soluble silicate is (10:1)-(1:50) and the molar ratio of the water-soluble silicate to the water-soluble metal salt is (5:1)-(1:3). The polyethylene foamed plastic material composition provided by the invention has the advantages of high sterilization efficiency, high water washing resistance, stable performance and the like.

Description

technical field [0001] The invention relates to an antibacterial plastic composition, more precisely, relates to an antibacterial polyethylene foam plastic and a preparation method thereof. Background technique [0002] The stable bubble layer in polyethylene (PE) foam can endow the material with good heat insulation, sound absorption and sound insulation, good flexibility and light weight, so it can be used as heat preservation materials such as heat preservation boards, heat preservation pots, heat preservation lunch boxes, Sound insulation materials, precision instruments, packaging materials for home appliances, automotive parts, lifesaving materials, sealing gaskets in container corks, etc. With the improvement of people's living standards, more and more fields have put forward higher requirements on the hygienic performance of materials, especially products directly with people, so it is necessary to endow polyethylene foam with antibacterial properties. [0003] Peop...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08J9/10
Inventor 刘涛李杰张师军徐凯张丽英王小兰邵静波张洪波
Owner CHINA PETROLEUM & CHEM CORP
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