Preparation method of organic-silicone-modified flame-retarding nylon-6

The invention relates to the field of organic high-molecular materials and particularly relates to a preparation method of organic-silicone-modified flame-retarding nylon-6. A particular scheme in the method comprises following steps: (a) filling a container with a certain amount of a caprolactam monomer; (b) heating the container, and vacuumizing and dehydrating the caprolactam monomer; (c) adding a proper amount of an accelerant and an activating agent to initiate polymerization; and (d) quickly adding an organic silicon modifier, uniformly stirring the mixture to enable nylon to co-polymerize with organic silicon and meanwhile the organic silicon to disperse uniformly in the nylon base body, thereby obtain the flame-retarding MC nylon composite material. The preparation method can maximumly utilize the advantages, such as toughening and reinforcing, wear resistance enhancing, water absorption reducing and flame retarding and the like, of organic silicon, thereby obtaining the composite material being excellent in both flame retarding and mechanical properties. The method is quick in synthesis, is toxic-free, is safe and pollution-free and satisfies requirement of green chemistry. The nylon composite material is reduced in water absorption, is enhanced in size stability and is better in wear resistance.