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Non-releasing polymer antibacterial masterbatch containing guanidyl side chain, preparation method and applications

A technology of antibacterial masterbatch and polymer, which is applied in the field of non-releasing polymer antibacterial masterbatch and its preparation, can solve the problems of poor plastic compatibility and processing performance, and achieve good compatibility, good antibacterial effect, and preparation The effect of simple process

Active Publication Date: 2018-08-24
TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main reason is that the modification of SMA with polyguanidine salt can give it a new function, that is, antibacterial function, which broadens its application range, and at the same time solves the problems of poor processability and poor compatibility with plastics when polyguanidine salt is used in plastics

Method used

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  • Non-releasing polymer antibacterial masterbatch containing guanidyl side chain, preparation method and applications
  • Non-releasing polymer antibacterial masterbatch containing guanidyl side chain, preparation method and applications
  • Non-releasing polymer antibacterial masterbatch containing guanidyl side chain, preparation method and applications

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Experimental program
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Effect test

Embodiment 1

[0047] 50g maleic anhydride molar content is that the SMA of 35% and the PHGC of 2.5g carry out mechanical blending, obtain the first mixture; The first mixture is dried 24h in the oven of 60 ℃; Both are at 210°C, and the rotation speed is 50r / min; the dried first mixture is added into the cavity of the internal mixer, the time from feeding to discharging is 4min, and it is pulverized after discharging to obtain SMA with a ratio of PHGC to SMA of 5%. (35%)-PHGC antibacterial masterbatch.

Embodiment 2

[0049] 50g maleic anhydride molar content is that the SMA of 35% and the PHGC of 5.0g carry out mechanical blending, obtain the first mixture; The first mixture is dried 24h in the oven of 60 ℃; Both are at 210°C, and the rotation speed is 50r / min; the dried first mixture is added to the cavity of the internal mixer, and the time from feeding to discharging is 10 minutes, and it is pulverized after discharging to obtain SMA with a ratio of PHGC to SMA of 10%. (35%)-PHGC antibacterial masterbatch.

Embodiment 3

[0051] 50g maleic anhydride content is that the SMA of 35% and the PHGC of 10.0g carry out mechanical blending, obtain the first mixture; The first mixture is dried 24h in the baking oven of 60 ℃; It is 210 ℃, and the rotating speed is 50r / min; The first mixture that will dry is joined in the banbury mixer chamber, is 12min from charging to discharging time, pulverizes after discharging, obtains the SMA that PHGC and SMA ratio are 20% 35%)-PHGC antibacterial masterbatch.

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Abstract

The present invention discloses a non-releasing polymer antibacterial masterbatch containing a guanidyl side chain, wherein the molecular structure of the polymer antibacterial masterbatch is represented by a formula (1) defined in the specification, R is a polyguanidine salt, and m, n and x are polymerization degrees and are natural numbers of greater than 0. According to the present invention, the preparation process of the polyguanidine salt modified SMA is simple, and the polymer antibacterial masterbatch can be obtained through the one-step melt grafting reaction; the prepared polymer antibacterial masterbatch has good compatibility with various polymer materials so as to broaden the applications of the polyguanidine salt in the polymer materials and endow the SMA with the new antibacterial function; and with the application of the non-releasing polymer antibacterial masterbatch in the polymer materials, the material can have good antibacterial effect, the antibacterial efficiencycan reach more than 99.0%, the long-acting antibacterial property of the material is achieved, and the broad application prospects are provided in the field of plastic fibers.

Description

technical field [0001] The invention relates to the field of functional polymer materials; more specifically, it relates to a non-releasing polymer antibacterial masterbatch containing guanidine side chains, a preparation method and application thereof. Background technique [0002] Antibacterial plastics emerged in the 1980s and developed rapidly in the 1990s. As a new type of functional material, they have been widely used in many fields such as medical care, food packaging, home appliances, kitchen and bathroom supplies, and auto parts. . Antibacterial products have very important practical significance for improving people's quality of life and reducing the incidence of disease and infection. However, at present, most of the antibacterial agents that realize antibacterial function in antibacterial plastics are small-molecule antibacterial agents that dissolve. Due to the continuous dissolution of surface antibacterial agents, the antibacterial performance of this type o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G81/02C08J3/22
CPCC08G81/024C08J3/223C08J2323/06C08J2323/12C08J2325/06C08J2335/06C08J2377/00C08J2487/00
Inventor 季君晖孙潇潇甄志超王格侠王萍丽任中来陆波方葳
Owner TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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