Method for making laminated glass interlayer film and laminated glass and method for making the laminated glass

A method for making a laminated glass interlayer film, comprising the steps of:

• a) providing an ethylene-vinyl acetate copolymer;
• b) mixing an ethylene-vinyl acetate copolymer, an initiator, a coupling agent, a crosslink-assisting agent, an ultraviolet light absorber, and a radical scavenger to obtain a mixture, wherein the mixture consists of the ethylene-vinyl acetate copolymer, the initiator, the coupling agent, the crosslink-assisting agent, the ultraviolet light absorber, and the radical scavenger, and the initiator consists of a photoinitiator;
• and
• c) forming the mixture at a specific temperature to obtain the laminated glass interlayer film consisting of the mixture;
• wherein the ethylene-vinyl acetate copolymer contains 5 wt % to 70 wt % vinyl acetate groups;
• the ethylene-vinyl acetate copolymer has a melt flow rate ranging from 5 g/10 min to 50 g/10 min;
• the amount of the photoinitiator ranges from 0.1 wt % to 10 wt % based on the total amount of the mixture;
• the amount of the crosslink-assisting agent ranges from 0.1 wt % to 4 wt %;
• the amount of the coupling agent ranges from 0.01 wt % to 10 wt %;
• the coupling agent comprises tetra-n-propyl zirconate, tetra-n-butyl zirconate, titanate coupling agent LICA 12, titanate coupling agent LICA 38, butyl titanate phosphate, and titanium diisopropoxide bis(acetylacetonate), 3-(methacryloxypropyl) trimethoxysilane, 3-(methacryloyloxy) propyltriethoxysilane, (3-glycidoxypropyl) trimethoxysilane), (3-glycidoxypropyl) triethoxysilane, 3,4-epoxycyclohexylthyltrimethoxysilane, 3-aminopropyltriethoxysilane, or trimethoxysilyl ethene;
• the photoinitiator comprises a benzoin-based compound, a benzophenone-based compound or a rhodium-based compound;
• the ultraviolet light absorber comprises a benzophenone-based compound, a triazine-based compound or an amide-based compound;
• the crosslink-assisting agent comprises a polyfunctional compound containing an acrylic group or a vinyl group;
• the radical scavenger comprises a hindered phenol antioxidant or a hindered amine light stabilizer.