【摘要】 研究了玻纤布、短切玻纤及碳酸钙对不饱和聚酯片状模塑料力学性能的影响,实验发现:玻纤布增强不饱和聚酯片状模塑料的力学性能比短切玻纤好,随着玻纤含量的增加,不饱和聚酯片状模塑料的拉伸强度先增加,达到一极大值之后减少。碳酸钙填充不饱和聚酯片状模塑料,随着碳酸钙含量的增加,不饱和聚酯片状模塑料的拉伸强度明显降低,弯曲强度增加。更多还原

【Abstract】 The effect of glassfiber cloth,short glass fiber and calcium carbonate on mechanical properties of unsaturated polyester sheet molding compounds was studied.It was discovered that glassfiber cloth reinforced unsaturated polyester had better mechanical properties than shortglass fiber.At first,ultimate tensile and flexure strength rose until maximum values as amount of glassfiber increased,and decreased afterwards.Ultimate tensile stength of calcium carbonate reinforced unsaturated polyester sheet sheet molding compounds dropped sharply and flexural strength increased with increasing of calcium carbonate loadings.更多还原