CAJ | 학술논문

为研究高性能、低成本的汽车保险杠专用料,采用溶胶-凝胶法制备了CaCO3/SiO_2纳米复合粒子,并通过红外吸收光谱、X光电子能谱、透射电子显微镜对CaCO_3/SiO_2复合粒子的形貌和组成进行了分析.把制得的CaCO_3/SiO_2纳米复合粒子填充在聚丙烯(PP)中,对其弯曲强度(σ_w)、弯曲模量(E_w)、冲击强度(I)、拉伸强度(σ_f)、拉伸模量(E_f)以及硬度(H_D)进行了测试.结果表明:纳米复合粒子的加入使聚丙烯材料的邵氏硬度从49增加到58,当纳米复合粒子的质量含量在5%时,PP复合材料的拉伸强度和弯曲强度有所提高,而对材料的冲击强度影响不大.
위연구고성능、저성본적기차보험강전용료,채용용효-응효법제비료CaCO3/SiO_2납미복합입자,병통과홍외흡수광보、X광전자능보、투사전자현미경대CaCO_3/SiO_2복합입자적형모화조성진행료분석.파제득적CaCO_3/SiO_2납미복합입자전충재취병희(PP)중,대기만곡강도(σ_w)、만곡모량(E_w)、충격강도(I)、랍신강도(σ_f)、랍신모량(E_f)이급경도(H_D)진행료측시.결과표명:납미복합입자적가입사취병희재료적소씨경도종49증가도58,당납미복합입자적질량함량재5%시,PP복합재료적랍신강도화만곡강도유소제고,이대재료적충격강도영향불대.
The purpose to prepare a new type of inorganic nano-filler which filling into the polypropylene (PP) ,furthermore,to apply in the manufacturing of a special car bumper material with high-performance and low-cost. The sol-gel method has been used to prepare nano CaCO_3/SiO_2 composite particles. Subsequently, the morphology and composition of the resulting composite particles' surfaces using a combination of infrared absorption spectroscopy (IR), X-ray photoelectron spectroscopy (XPS) and transmission electron microscopy (TEM), were investigated.The bending strength (σw), bending modulus (E_w), tensible strength (σ_f), tensible modulus (E_f) impact strength (I), as well as hardness(H_D)of the suitable polypropylene (PP), filled with CaCO_3/SiO_2 composite nano-particle,were tested. The results indicate that the Shore hardness of polypropylene material supplemented with CaCO_3/SiO_2 nano-composite particles increased significantly from 49 to 58. When the amount of CaCO_3/SiO_2 nano-composite particles incorporation is around 5 wt %, the tensile strength and flexural strength of the PP composite material increase, nevertheless, the impact strength of the material is not obviously influenced.