Title:
PREPARATION METHOD FOR GRAPHENE-BASED MODIFIER, HEAVILY-SHIELDED NETWORK CABLE MATERIAL CONTAINING GRAPHENE-BASED MODIFIER
Document Type and Number:
WIPO Patent Application WO/2021/212898
Kind Code:
A1
Abstract:
A preparation method for a graphene-based modifier, comprising the following steps: dispersing graphene oxide in an organic solvent to produce a graphene oxide suspension; adding an esterification modifier into the graphene oxide suspension, adding concentrated sulfuric acid, heating and refluxing for 1-3 hours; when reaction is finished, stratifying by standing still, removing the supernatant, collecting, rinsing, and drying a product to produce an esterification-modified graphene oxide; mixing the esterification-modified graphene oxide with a silane coupling agent at a high speed for 5-30 min to produce a graphene-based modifier. The application of the esterification-modified graphene oxide modifier in a cable material significantly increases the shielding level of a cable and increases the flame retardancy of the cable.
Inventors:
LIU HUA (CN)
ZHANG YAN (CN)
HU JIANYOU (CN)
ZHANG DINGGEN (CN)
ZHANG ZHONGGUI (CN)
ZHANG YAN (CN)
HU JIANYOU (CN)
ZHANG DINGGEN (CN)
ZHANG ZHONGGUI (CN)
Application Number:
PCT/CN2020/140254
Publication Date:
October 28, 2021
Filing Date:
December 28, 2020
Export Citation:
Assignee:
NINGBO SHIP PLASTIC CO LTD (CN)
International Classes:
C01B32/194; H01B11/06
Foreign References:
| CN111484007A | 2020-08-04 | |||
| CN108690262A | 2018-10-23 | |||
| CN109232982A | 2019-01-18 | |||
| CN108410079A | 2018-08-17 | |||
| CN106882802A | 2017-06-23 | |||
| CN106046638A | 2016-10-26 | |||
| KR20180092150A | 2018-08-17 |
Attorney, Agent or Firm:
NINGBO YINZHOU SHENGFEI PATENT ATTORNEY (SPECIAL GENERAL PARTNERSHIP) (CN)
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