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为降低成本,树脂制品制造商通常用廉价矿物和某些填料来取代大量昂贵的树脂。因填料也可提高材料的结构强度,因此可作为增强剂,以明显改进某些物理性质,如抗弯模数和抗拉强度。然而,改进这些性质的代价是抗冲击强度的下降。如果矿物成分提高到体积百分比的15～20％以上,大多数合成材料混合体就要变脆。因此生产厂家努力寻找一个兼顾结构强度和韧度的方案,使抗拉强度和抗弯模数都不会降低,同时调整类似高岭土这样的矿物增强剂的表面化学性质,以大大提高合成材料的抗冲击强度。
To reduce costs, resin manufacturers often replace expensive, expensive resins with cheap minerals and certain fillers. Because fillers also increase the structural strength of the material, they act as reinforcements to significantly improve certain physical properties such as flexural modulus and tensile strength. However, the cost of improving these properties is a reduction in impact strength. If the mineral content is increased to more than 15-20% by volume, most composites will become brittle. Therefore, manufacturers strive to find a balance between structural strength and toughness of the program, the tensile strength and bending modulus will not be reduced, while adjusting the surface chemistry of minerals such as kaolin to greatly enhance the synthetic material resistance Impact strength.