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Title:
POLYOLEFIN MATERIAL HAVING POLYMER GRAFTED ON SURFACE, AND PREPARATION METHOD AND APPLICATION THEREOF
Document Type and Number:
WIPO Patent Application WO/2021/052071
Kind Code:
A1
Abstract:
Provided are a polyolefin material having a polymer grafted on its surface, and a preparation method and application thereof; the preparation method comprises: (1) placing a polyolefin powder in a plasma apparatus, vacuumizing, and then feeding-in inert gas for glow discharge, generating a large amount of free radicals on the surface of the polyolefin powder; (2) placing the polyolefin powder having free radicals on its surface into the air to obtain a polyolefin powder containing peroxide on its surface; (3) adding the polyolefin powder having peroxide on its surface to a polymerized monomer solution and carrying out a free radical polymerization reaction to obtain a polymer powder; (4) after the polymer powder is washed and dried, obtaining a polyolefin powder having a polymer grafted on its surface; the polyolefin powder having the polymer grafted on its surface is used as a blending modifier, used for blending and modifying polyolefin products.

Inventors:
YING SHUNI (CN)
CHEN GUOGUI (CN)
ZHENG SIXUN (CN)
LI LEI (CN)
Application Number:
PCT/CN2020/108781
Publication Date:
March 25, 2021
Filing Date:
August 13, 2020
Export Citation:
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Assignee:
ZHEJIANG WEIXING NEW BUILDING MATERIALS CO LTD (CN)
UNIV SHANGHAI JIAOTONG (CN)
International Classes:
C08F255/02; C08F2/38; C08F220/20; C08F220/24; C08F259/08
Domestic Patent References:
WO2010031598A12010-03-25
Foreign References:
CN110698598A2020-01-17
CN103183781A2013-07-03
CN101463164A2009-06-24
CN102120829A2011-07-13
CN104356420A2015-02-18
US4396641A1983-08-02
JPS51130494A1976-11-12
Other References:
IDE, FUMIO, ET AL.: "Application of Low-Temperature Plasma Treatment in Polymeric Materials (Part II)", TEXTILE TECHNOLOGY OVERSEAS (FIBERS, DYEING AND FINISHING ENVIRONMENTAL PROTECTION), 21 January 1986 (1986-01-21), pages 60 - 61, XP055793158
Attorney, Agent or Firm:
HANGZHOU ZHEKE PATENT AGENCY (GENERAL PARTNERSHIP) (CN)
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