Title:
MODIFIED GRAPHENE FLAME RETARDANT CONTAINING FLAME-RETARDANT ELEMENTS AND DOUBLE BONDS AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2022/233108
Kind Code:
A1
Abstract:
The present invention relates to the technical field of flame retardants in a polyurethane synthesis system, and provides a modified graphene flame retardant containing flame-retardant elements and double bonds and a preparation method therefor. The preparation method comprises: first performing ball milling on graphite flakes and sodium chloride; then adding p-aminostyrene and 6-pteridine amine, mixing and ball milling; and finally, adding nitrite, mixing and grinding, and obtaining the modified graphene flame retardant containing flame-retardant elements and double bonds by washing and vacuum drying. The modified graphene flame retardant contains graphene. 6-pteridine amine and p-aminostyrene are linked to the graphene by means of chemical groups, the carbon-carbon double bonds of the modified graphene flame retardant are introduced into polymeric polyol, and after a polyurethane product is prepared from the polymeric polyol, the flame retardant effect of the polyurethane product is relatively good.
Inventors:
WU DANDAN (CN)
CHEN DENGLONG (CN)
ZHENG XUELIN (CN)
LIN JINHUO (CN)
LǙ ZHIREN (CN)
CHEN DENGLONG (CN)
ZHENG XUELIN (CN)
LIN JINHUO (CN)
LǙ ZHIREN (CN)
Application Number:
PCT/CN2021/118381
Publication Date:
November 10, 2022
Filing Date:
September 15, 2021
Export Citation:
Assignee:
QUANGANG PETROCHEMICAL RESEARCH INSTITUTE OF FUJIAN NORMAL UNIV (CN)
International Classes:
C08K9/04; C08G18/63; C08K3/04
Domestic Patent References:
| WO2016196609A1 | 2016-12-08 |
Foreign References:
| CN113174087A | 2021-07-27 | |||
| CN105348578A | 2016-02-24 | |||
| CN106632958A | 2017-05-10 | |||
| CN101913592A | 2010-12-15 | |||
| CN105385148A | 2016-03-09 | |||
| CN105377998A | 2016-03-02 | |||
| CN110229304A | 2019-09-13 | |||
| CN107445148A | 2017-12-08 | |||
| CN108430642A | 2018-08-21 |
Other References:
CHENG CHUNGUI; JIA PAN; XIAO LINHONG; GENG JIANXIN: "Tandem chemical modification/mechanical exfoliation of graphite: Scalable synthesis of high-quality, surface-functionalized graphene", CARBON, ELSEVIER OXFORD, GB, vol. 145, 1 January 1900 (1900-01-01), GB , pages 668 - 676, XP085669936, ISSN: 0008-6223, DOI: 10.1016/j.carbon.2019.01.079
Attorney, Agent or Firm:
QUANZHOU TANSI PATENT AGENCY (GENERAL PARTNERSHIP) (CN)
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