Thermoplastic polyurethane elastomer(TPU),as a core intermediate film material,is easily affected by processing temperature and shear rate in the production process,resulting in unstable optical and mechanical properties and uneven thickness.Therefore,it is of great significance to study the process parameters and surface modification of TPU for improving the quality and cost control of bulletproof glass.The experimental data showed that the optimal head temperature for preparing the intermediate film was 180 ℃,and the optimal screw speed was 50 rpm.The thermal stability of the intermediate film could be improved by surface modification of silane coupling agent.
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