| In this paper, the synthesis of high molecular weight bromic bromine-carbon phenolic epoxy resin was achieved using flame-retardant element bromine of polymeric. And the bromine-carbon phenolic epoxy resin was applied in flame-retardant coatings. The bromic intrinsical flame-retardant polymers was used as binder of fire retardant coatings as well as reinforced compatibility of resin, but also flame-retardant macromolecule flame-retardant not only improved timeliness of fire retardant, thus extending the effectiveness of fire retardant coating.Bromine-carbon phenolic epoxy resin was prepared using bromophenol and formaldebyde as raw materials while sodium hydroxide as catalyst. As prepared bromine-carbon phenolic epoxy resin was synthesized with epoxy chlorp-ropane solution using carbon as catalyst. Pentaerythritol is used in microencapsulation by interfacial polymerization. Both tetramethylolmethane and isophorone diisocyanate were regard as core materials and mechanical properties, respectively,which formed microcapsules through monomer polycondensation in the core material surface. Synthesis conditions were explored to determine the ratio of raw material and reaction temperature,and the influence factors of product functions were analyzed.The bromine-carbon phenol resin, bromine-carbon phenolic epoxy resin and pentaeruthritol microcapsule were characterized by IR spectrum. It showed that resin and pentaerythritol microcapsules were synthetized correspondingly. Additionally, we used thermogravimetric to analyze dynamic equation for fireproofing coating of bromine-carbon phenol epoxy resin with extra-thin steel structure. And the flame retardant mechanism was also discussed.Through the different viscosity and different bromine content, it was found that when the bromine phenol resin viscosity and bromine content reached 16.32% and 24.8 mpa.s, respectively, the flame retardant systems was the best. Expansion system on ammonium polyphosphate, melamine, pentaerythritol and urea were studied. Also the compound flame-retardant system of chlorinated paraffin and antimony trioxide, fillers such as titanium dioxide, antifoam and solvent with the composition of thin steel expansion structure fire retardant coating were studied.The base material, fire retardant additives of anti-rusty coating, and functional additives were analyzed to determine the optimum formula for bromine orthogonal thin carbon phenolic epoxy coating of steel structure fire. And fire-retardant coating of bromine- carbon phenolic epoxy extra-thin steel structure fire-proofing was tested to develop the excellent functions of fireproofing extra-thin steel structure.The bromine-carbon phenolic epoxy resin was modified by epoxy resin E-44 under room temperature, and the mass ratio of bromine-carbon phenolic epoxy resin and epoxy resin E-44, resin and pigment and padding and coatings on the influence of the performance of coatings were discussed. The performance of fire burning flame retardant coatings were tested by self-made simulation test device, and the optimum formula was determined.The mechanism of multi-synergetic fire retardant coating in P-C-N system, chloroparaffin, antimonous oxide and molybdic oxide were studied further by themrogrvaimertie analysis (TGA), which provided effective academic sustain and research and industrial production for fire retardant coating. |
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