Anti-bacterial thermoplastic composite and preparation method thereof

A technology for thermoplastics and compositions, applied in the field of thermoplastics and their preparation, can solve the problems of increased cost, complicated steps and the like, and achieve the effects of easy operation, simple process and good antibacterial effect

Active Publication Date: 2010-06-09
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is cumbersome to make the antibacterial agent into antibacterial masterbatch first, and then add it to the raw materials that need to be modified, which undoubtedly increases the cost, and it is difficult to promote it in large petrochemical plants

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Weigh 60.0 g of inorganic montmorillonite (Zhejiang Fenghong Clay Chemical Co., Ltd. DK4, the thickness of the montmorillonite sheet is 20-30 nm, and the width is 1 μm-30 μm), and add it to 20.0 g of polyhexamethylene guanidine propionate (Shanghai High Polymer Co., Ltd. P3000) in an aqueous solution (concentration is 10%), heated to 80 ° C, stirred vigorously for 8 hours, then put the suspension in an oven to dry, and put the dried product into a pulverizer to pulverize to obtain polymer Hexamethylene guanidine propionate / montmorillonite (weight ratio 1:3) composite antibacterial agent ( Compound antibacterial agent 1 ).

Embodiment 2

[0039] Weigh 800.0 g of wollastonite (Shanggao Sidiman Mining Co., Ltd., wollastonite diameter is 300nm ~ 5 μm, length is 3 μm ~ 100 μm), and add it to 20.0 g polyhexamethyleneguanidine stearate (Shanghai Mountain Industrial Co., Ltd. (PHGS) in ethanol solution (concentration: 10%), heated to 50°C, and vigorously stirred for 8h. Then the suspension is put into an oven for drying, and the dried product is put into a pulverizer to pulverize to obtain polyhexamethyleneguanidine stearate / wollastonite (weight ratio 1: 40) composite antibacterial agent ( Compound antibacterial agent 2 ).

Embodiment 3

[0041] Weigh 60.0 g of nano-zeolite (ZSM-5 from Tianjin Dyestuff Factory, zeolite particle size is 300nm~2 μm), and add it into an aqueous solution containing 20.0 g of polyhexamethyleneguanidine hydrochloride (P1000 from Shanghai High Polymer Co., Ltd.) (concentration: 20%), heated to 80°C and stirred vigorously for 8h. Then the suspension is put into an oven for drying, and the dried product is put into a pulverizer to pulverize to obtain polyhexamethyleneguanidine hydrochloride / zeolite composite antibacterial agent (weight ratio 1: 3) ( Compound antibacterial agent 3 ).

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Abstract

The invention relates to an anti-bacterial thermoplastic composite, which comprises the following mixed components: 100 parts of thermoplastic by weight and 0.1-40 parts of composite antibacterial agent by weight, wherein the composite antibacterial agent comprises micronano inorganic/organic particles and guanidinesalt polymers which are coated on the surfaces of the micro/nano particles and/or embedded among pores and layers of the micronano particles; the weight ratio of the guanidinesalt polymers to the micro/nano particles is 1:1-1:50; and the micro/nano particles have at least a one-dimensional average size of 1nm-1000mum. The anti-bacterial thermoplastic composite is obtained by melting and mixing the components such as the thermoplastic, the composite antibacterial agent, and the like, therefore the antibacterial rate of the anti-bacterial thermoplastic composite is higher and the preparation method is simple.

Description

technical field [0001] The invention relates to a thermoplastic and a preparation method thereof. Specifically, it relates to a thermoplastic with antibacterial properties and a preparation method thereof. technical background [0002] In recent years, with the improvement of people's living standards and the enhancement of hygiene awareness, the demand for various antibacterial material products has been increasing, of which antibacterial plastic products account for a large proportion, including various daily products, such as refrigerators, air conditioners, various A variety of food containers, packaging bags, washing machines, toy products, vacuum cleaners, etc., all use a variety of thermoplastic antibacterial plastics, these thermoplastic antibacterial plastics include antibacterial polypropylene (PP), antibacterial polyethylene (PE), antibacterial polystyrene (PS), antibacterial polyvinyl chloride (PVC), antibacterial polyacrylonitrile-butadiene-styrene (ABS), antib...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L101/00C08L79/02C08K7/00
Inventor 李杰张师军张薇张丽英刘涛张浩尹华邵静波王小兰李魁吕明福邹浩杨庆泉张洪波徐萌陈力吕芸
Owner CHINA PETROLEUM & CHEM CORP
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