| abstract |
A kind of method of vinyl monomer reactive extrursion combined polymerization, it is the first spiral shell section that double screw extruder is sent into by vinyl monomer or with least one vinyl comonomer and initiator, and modified resin is added in spiral shell section below；Continue to add corresponding monomer in the spiral shell section that system enters after automatically speeding up area, continue to add initiator corresponding with barrel temperature after it's half-life period pasts initiator, and for modified micro-nano inorganic modified material；And antioxidant and anti ultraviolet agent are added in polymerization, unconverted monomer and accessory substance are then removed by devolatilization spiral shell section；By controlling the temperature of different spiral shell sections, reacting and extruding polymerization obtains predetermined molecular weight as 5 × 10 2 To 6 × 10 5 Vinyl copolymer resin.Instant invention overcomes the defects of radical reaction extruding polymerization technology is present is currently used for, the short requirement of reacting and extruding polymerization residence time can be both fully met, has integrated functionalization and high performance, while can meet that polymer reaches the requirement of HMW again. |