Xiamen University

Shicheng Wang

Lizong Dai

Yiting Xu

Birong Zeng

Conghui Yuan

Wei'ang Luo

Ting Chen

Cheng Liu

Guorong Cehn

Kaibin He

Zhiheng Shao

Disclosed are a fluorine-silicon-containing polyphosphate ester and method for preparation thereof, having a chemical structural formula of: wherein Ris Ris n=10&#x2dc;100. The fluorine-silicon-containing polyphosphate ester of the present invention uses silicon phosphorus and fluorine for improving flame retardancy. Phosphorus catalyzes the system to form a phosphorus-rich carbon layer, performing a protective-layer function and thereby preventing further breakdown of the epoxy resin. The silicon-containing epoxy resin forms a silica-containing carbon layer during the process of combustion, strengthening the carbon-layer structure and further improving the protective function of the carbon-layer. The introduction of elemental fluorine improves the thermal stability of the epoxy resin, thereby improving the flame retardancy performance of the system.

Method for preparing fluorine-silicon-containing polyphosphate ester and flame retardant epoxy resin

Provided are a 2-mercaptobenzothiazole modified graphene oxide anti-corrosion coating and a preparation method thereof, the raw materials of which comprising, by mass ratio: 2-mercaptobenzothiazole modified graphene oxide 5-20; a matrix resin 30-70; a leveling agent 0.5-1.0; a defoamant 0.5-1.0; a dispersant 0.5-1.0; a film-forming additive 0.5-1.0; a diluent 20-35. The method for the 2-mercaptobenzothiazole modified graphene oxide comprises first reacting graphene oxide with cyanuric chloride, then reacting with 2-mercaptobenzothiazole.

2-mercaptobenzothiazole modified graphene oxide anti-corrosion coating and method for preparation thereof

Disclosed are a preparation method of a phosphorus-nitrogen-silicon-containing polymeric flame retardant and application thereof. The chemical structure of the polymeric flame retardant is wherein m=10&#x2dc;100, n=10&#x2dc;100. The synergistic flame-retardant effect between the phosphorus, nitrogen, and silicon in the phosphorus-nitrogen-silicon-containing polymeric flame retardant increases the flame retardancy of epoxy resin.

Phosphorus-nitrogen-silicon-containing polymeric flame retardant and preparation method and application thereof

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Xiamen, China

Shicheng Wang