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Antibacterial thermoplastic plastic composition and preparation method thereof

A technology of thermoplastics and compositions, applied in botany equipment and methods, chemicals for biological control, animal repellents, etc., can solve the problems of cumbersome steps and increased costs, and achieve simple process, easy operation, The effect of good antibacterial effect

Active Publication Date: 2011-05-04
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

[0030] (1) Weigh 100.0 g (0.465 M) of polyhexamethylene guanidine propionate (Shanghai High Poly, F3000), add it to 300 mL of deionized water solution, stir to dissolve it, and call it solution A; (2) Weigh 70.0g (0.246M) of sodium silicate (chemically pure), add it to 300mL deionized water, stir to dissolve it, and call it solution B; (3) at room temperature (about 25°C), mix solution A and solution B Mix and fully stir for 30 minutes to form solution C; (4) weigh ZnSO 4 (Chemically pure) 180.0g (0.626M), slowly poured into solution C, and vigorously stirred for 5min, the precipitate was filtered, dried, and pulverized to obtain polyhexamethylene guanidine propionate / zinc polysilicate antibacterial agent (compound antibacterial agent one).

Embodiment 2

[0032] (1) Weigh 100.0 g (0.465 M) of polyhexamethylene guanidine propionate (Shanghai High Poly, F3000), add it to 300 mL of deionized water solution, stir to dissolve it, and call it solution A; (2) Weigh 100.0g (0.352M) of sodium silicate (chemically pure), add it to 500mL of deionized water, stir to dissolve it, and call it solution B; (3) Mix solution A and solution B, and stir well at 50°C for 1h , to form solution C; (4) weigh ZnSO 4 (Chemically pure) 120.0g (0.417M), slowly poured into solution C, and vigorously stirred for 10min, the precipitate was filtered, dried, and pulverized to obtain polyhexamethylene guanidine propionate / polysilicate zinc composite antibacterial agent (composite antibacterial agent II).

Embodiment 3

[0034] (1) Weigh 100.0g (0.635M) of polyhexamethyleneguanidine hydrochloride (Shanghai Gaoju F1000), add it to 300mL deionized aqueous solution, stir to dissolve it, and call it solution A; (2) call it solution A; Sodium silicate (chemically pure) 150.0g (0.528M), was added to 600mL deionized water, stirred to dissolve, called solution B; (3) at room temperature (about 25°C), mix solution A and solution B , and fully stirred for 1.5h to form solution C; (4) weigh Ca(NO 3 ) 2 (chemically pure) 120.0g (0.508M), slowly poured into solution C, and vigorously stirred for 10min, the precipitate was filtered, dried, and pulverized to obtain polyhexamethyleneguanidine hydrochloride / calcium polysilicate composite antibacterial agent (compound antibacterial agent three).

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PUM

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Abstract

The invention provides an antibacterial thermoplastic plastic composition, comprising the following blending components in parts by weight: 100 parts of thermoplastic plastic, 0.1-20 parts of polymer guanidine / polysilicate compound antibacterial agent, 0-0.5 part of antioxidant, 0-5 parts of dispersing agent and 0-30 parts of compatilizer, wherein the polymer guanidine / polysilicate compound antibacterial agent is obtained by mixing inorganic acid salt aqueous solution or organic acid salt aqueous solution of water-soluble polymer guanidine with water-soluble silicate aqueous solution and thenadding water-soluble metal salt aqueous solution, wherein the molar ratio of the inorganic acid salt or organic acid salt of the water-soluble polymer guanidine 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 antibacterial thermoplastic plastic has the characteristics of high antibacterial effectand strong water resistance, and simultaneously, 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 Polyethylene (PS), antibacterial polyvinyl chloride (PVC), antibacterial polyacrylonitrile-butadiene-styrene...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L23/06C08L27/06C08L55/02C08L77/00C08L25/06C08L67/00C08L33/12C08L69/00C08L79/00C08K3/34A01N59/16A01N59/06A01N47/44A01P1/00
Inventor 李杰张师军张丽英邵静波刘涛张浩尹华张薇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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