At the same content of chlorinated polyethylene (CPE) and nano-CaCO?3 in formulation, the impact strength of rare earth stabilizer system was 4.3 times higher than that of lead salt system, and their tensile strengths were comparable.

• 等量氯化聚乙烯(CPE)和纳米CaCO3加入情况下；稀土稳定剂体系冲击强度是铅盐体系的4.；3倍；拉伸强度相当。