摘要
在接枝率为3.5%的马来酸酐接枝聚丙烯(PP-g-MAH)中分别掺入一定量的聚丙烯(PP)、高密度聚乙烯、聚烯烃弹性体、线型低密度聚乙烯和聚苯乙烯,在温度为200～210℃,时间为1～2 min的条件下挤出造粒,可制备高黏合性的共混物。结果表明,将其涂于金属材料表面,纯PP-g-MAH的黏合强度仅为0.936 N/mm,PP-g-MAH与PP以20/80(质量比)共混时,黏合强度提高到1.956 N/mm。通过扫描电镜观察黏合性树脂共混物的断面,PP-g-MAH(20份)与其他聚烯烃共混后,共混物与金属材料的接触面增大,渗透力增强,有利于酸酐与极性物质形成键合力。
The polyolefin adhesive resin blends were prepared by blending maleic anhydride grafted polypropylene （ PP - g - MAH） with grafting ratio of 3.5 % , polypropylene （PP） , high density polyethylene, polyolefin elastomer, low density polyethylene and polystyrene at screw temperature of 200- 210 ℃, and time of 1 -2 min. The results showed that the adhesion strength of PP- g- MAH was 0. 936 N/mm, and the adhesion strength of PP-g- MAH/PP （ mass ratio 20/80） was 1.956 N/mm when they were applied on the surface of metallic materials. The scanning electron microscopy observation showed that the blending of PP - g - MAH with other polyolefins got PP interface with metal magnified, penetration power enhanced, and was favorable for the formation of bond force between anhydride and polar substances.
出处
《石化技术与应用》
CAS
2010年第3期195-198,共4页
Petrochemical Technology & Application
关键词
PP-g—MAH
聚烯烃
共混物
黏合强度
物理机械性能
耐热性能
maleic anhydride grafted polypropylene
polyolefin
blend
adhesion strength
mechanicalproperty
thermal resistance
