CAJ | 학술논문

为研究β-晶对碳酸钙填充PP复合材料力学性能的影响，该文采用负载β-成核剂的纳米碳酸钙（β-CC）混合纳米碳酸钙（CC）或微米碳酸钙（WC）填充PP制备了β-PP复合材料及其PP-g-MA、POE-g-MA和EVA-g-MA作为相容剂的增容复合材料。力学性能研究结果表明，随着CC和WC用量增加，PP拉伸强度降低、模量提高；β-CC填充PP复合材料模量提高，拉伸强度变化不大。PP-g-MA增容提高填充PP复合材料拉伸强度、杨氏模量和冲击强度；POE-g-MA增容明显提高冲击强度，EVA-g-MA增容降低拉伸性能。β-CC/PP复合材料冲击强度随着β-CC用量增加而提高，β-CC/CC/PP和β-CC/WC/PP冲击强度高于CC/PP（w（CC）/w（PP）＝5/95）和WC/PP（w（WC）/w（PP）＝5/95）复合材料归结于高韧性β-晶形成。
위연구β-정대탄산개전충PP복합재료역학성능적영향，해문채용부재β-성핵제적납미탄산개（β-CC）혼합납미탄산개（CC）혹미미탄산개（WC）전충PP제비료β-PP복합재료급기PP-g-MA、POE-g-MA화EVA-g-MA작위상용제적증용복합재료。역학성능연구결과표명，수착CC화WC용량증가，PP랍신강도강저、모량제고；β-CC전충PP복합재료모량제고，랍신강도변화불대。PP-g-MA증용제고전충PP복합재료랍신강도、양씨모량화충격강도；POE-g-MA증용명현제고충격강도，EVA-g-MA증용강저랍신성능。β-CC/PP복합재료충격강도수착β-CC용량증가이제고，β-CC/CC/PP화β-CC/WC/PP충격강도고우CC/PP（w（CC）/w（PP）＝5/95）화WC/PP（w（WC）/w（PP）＝5/95）복합재료귀결우고인성β-정형성。
In order to investigate the influence of β-phase on the mechanical properties of CaCO3/poly-propylene (CaCO3/PP)composites,β-PP composites were prepared by PP filled with the mixture of nano-CaCO3 (CC)supported with β-nucleating agent (β-CC)and CC or micro-CaCO3 (WC).Using PP-g-MA,POE-g-MA and EVA-g-MA as compatibilizers,the compatibilized composites were also pre-pared.The results indicated that the tensile strength of PP composites decreased and tensile modulus in-creased with increasing the content of CaCO3 .Addition ofβ-CC increased tensile modulus of PP and had no influence on the tensile strength of PP.Compatibilization of PP-g-MA increased the tensile strength, tensile modulus and impact strength of filled PP composites.Compatibilization of POE-g-MA significantly increased the impact strength of filled PP composites.Compatibilization of EVA-g-MA decreased the ten-sile properties of filled PP composites.The impact strength of β-CC/PP composites increased with in-creasing the content ofβ-CC and the impact strength ofβ-CC/CC/PP and β-CC/WC/PP were higher than those of CC/PP(w(CC)/w(PP)=5/95 )and WC/PP(w(WC)/w(PP)=5/95 ),due to the for-mation ofβ-phase.