Title:
ANTIMICROBIAL POLYLACTIC ACID MATERIAL AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2022/188513
Kind Code:
A1
Abstract:
An antimicrobial polylactic acid material and a preparation method therefor. The preparation method comprises: soaking a polylactic acid material in an antimicrobial solution, the surface of the polylactic acid material having a carboxyl functional group and/or a hydroxyl functional group; draining the soaked polylactic acid material; carrying out heat preservation on the drained polylactic acid material at a temperature of 100-150°C for 30-150 min; and after the heat preservation is completed, cleaning and drying the polylactic acid material, wherein the antimicrobial solution comprises a coupling agent and an organosilicon quaternary ammonium salt. The preparation method for the antimicrobial polylactic acid material does not require the pretreatment of a material; moreover, the polylactic acid material is soft in texture, can be obtained by coupling/grafting, directly using a chemical grafting method, an antimicrobial active ingredient to an active group on the surface of the material by means of a coupling agent, and has excellent and stable antimicrobial performance.
Inventors:
LI GUOPING (CN)
LUO JIYUE (CN)
LUO JIYUE (CN)
Application Number:
PCT/CN2021/141574
Publication Date:
September 15, 2022
Filing Date:
December 27, 2021
Export Citation:
Assignee:
SHENZHEN ANGEL DRINKING WATER INDUSTRY GROUP CORP (CN)
International Classes:
D06M13/507; D06M13/513; D06M101/32
Foreign References:
| CN113106750A | 2021-07-13 | |||
| CN110052083A | 2019-07-26 | |||
| CN110665374A | 2020-01-10 | |||
| CN110746630A | 2020-02-04 | |||
| CN108823977A | 2018-11-16 | |||
| CN111501342A | 2020-08-07 | |||
| CN110577662A | 2019-12-17 | |||
| CN105442308A | 2016-03-30 | |||
| JP2004270094A | 2004-09-30 |
Attorney, Agent or Firm:
BEIJING LAWSING IP FIRM (CN)
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