Title:
ANTI-STATIC AND ANTI-MICROBIAL NYLON 6 AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2021/203240
Kind Code:
A1
Abstract:
The present invention provides a preparation method for anti-static and anti-microbial nylon 6, comprising the following steps: step I, adding caprolactam, nano-silver and deionized water into a high-pressure reaction kettle, filling the reaction kettle with protective gas to replace air, and carrying out a hydrolysis reaction of caprolactam to obtain a solution A; step II, putting the solution A prepared from step I and ethylene glycol into a polymerization reactor, filling the polymerization reactor with protective gas to replace air, adding concentrated sulfuric acid, raising the temperature up to 90-130°C, carrying out a normal-pressure reaction for 2-4 hours, then decreasing the pressure and removing water, maintaining the temperature at 90-130°C to continue the reaction for 1-3 hours, and lowering the temperature to obtain a solution B; and step III, adding caprolactam and a molecular weight regulating agent into the polymerization reactor in step II, under a protective atmosphere, heating to 260-280°C, carrying out a pressurized reaction for 2-4 hours, then lowering the temperature and decreasing the pressure, continuing the reaction for 1-2 hours, discharging the material, and carrying out extraction and drying, so as to obtain the anti-static and anti-microbial nylon 6. The present application enables nylon 6 to have a good anti-static property and anti-microbial property by means of modification on the nylon 6.
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Inventors:
LIU GUO (CN)
QIAN YANG (CN)
LI LONG (CN)
QIAN YANG (CN)
LI LONG (CN)
Application Number:
PCT/CN2020/083534
Publication Date:
October 14, 2021
Filing Date:
April 07, 2020
Export Citation:
Assignee:
JIANGSU HONGSHENG NEW MAT LIMITED BY SHARE LTD (CN)
International Classes:
C08G69/14; C08G69/16; C08K3/08; C08K9/04
Foreign References:
| CN109880079A | 2019-06-14 | |||
| CN110818893A | 2020-02-21 | |||
| CN108774318A | 2018-11-09 |
Attorney, Agent or Firm:
BEIJING CHINA IP LTD. (CN)
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