Flame-retardant resin

Abstract

The invention relates to a flame-retardant resin which comprises the following components in parts by mass: 10-20 parts of chlorinated styrene, 10-15 parts of maleic anhydride, 20-30 parts of tetrachloro phthalic anhydride, 40-55 parts of neopentyl glycol, 2-7 parts of methyl methacrylate, 8-15 parts of fiber, 6-10 parts of copper naphthenate, 1-3 parts of cobalt isooctoate, 20-30 parts of calcium carbonate and 8-12 parts of silicon dioxide. The tetrachloro phthalic anhydride used as the raw material can enhance the flame retardancy of the resin, and the chlorinated styrene used as the curing agent further enhances the flame retardancy of the resin. The flame-retardant resin has the characteristics of high temperature resistance, corrosion resistance, high strength, long service life of the prepared part, simple processing technique, no toxicity after curing, high bonding strength, simple and controllable technical process, short production cycle and the like, and can be cured at normal temperature. In the resin synthesis process, the heat generated by chemical reaction is fully utilized, thereby saving the energy and avoiding generating three wastes.

Description

Technical field [0001] The invention relates to the technical field of polymer composite materials, in particular to the field of flame-retardant resins. Background technique [0002] With the continuous development of corrosion and protection and the improvement of industrialization, the application fields of composite materials are becoming wider and wider, the working conditions and media are becoming more and more complex, the use temperature is getting higher and higher, and the market's requirements for its performance are also increasing. taller and taller. However, because phosphorus-based (phosphate ester, etc.) flame-retardant PC resins and flame-retardant PC / ABS alloys have a large amount (a few wt% to more than 10 wt%) of phosphorus-based flame retardants added, there are some problems : Gas generation may occur during injection molding of the mold, and when recycled or placed under accelerated deterioration conditions (for high temperature and high humidity), the ph...

AI Technical Summary

Problems solved by technology

However, since phosphorus-based (phosphate ester, etc.) flame-retardant PC resins and flame-retardant PC / ABS alloys have a large amount (several % to more than 10% by weight) of phosphorus-based flame retardants added, there are some problems : Gas evolution may occur during mold injection molding, and when recycled or placed under accelerated degradation conditions (for high temperature and humidity), the physical properties of the resin decrease significantly; these problems can be attributed to phosphorus-based resistive Combustion agent hydrolyzes PC components, especially under high temperature and high humidity conditions

[0003] At present, the high-performance resin composite materials used in the domestic and foreign fields are relatively single, mainly unsaturated polyester, vinyl ester resin, and tough epoxy resin materials, but these materials have deficiencies to varying degrees; Ester, high brittleness, low use temperature, and low bonding strength; although vinyl ester resin has the advantages of good toughness, good bonding strength, and low toxicity after curing, it has disadvantages such as low use temperature; epoxy resin, although it has toughness Good, high bonding strength, etc., but there are poor weather resistance, easy pulverization, high viscosity, poor wettability, and poor ability to withstand strong corrosive media such as strong acids, alkalis and solvents at higher temperatures. Curing system Disadvantages such as high toxicity, long curing cycle, and high post-processing costs

Therefore, traditional composite materials are far from meeting the market's increasingly high performance requirements.