结果表明：不同系列的SBS对不饱和聚酯树脂韧性均有提高；SEM测试表明该体系为共混多相体系。
The results proved that different series of SBS could increase the toughness of UP resin and the system was a blend multiphase system with SEM.
结果表明：不同系列的SBS对不饱和聚酯树脂韧性均有提高；SEM测试表明该体系为共混多相体系。
The results proved that different series of SBS could increase the toughness of UP resin and the system was a blend multiphase system with SEM.
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