Preparation and mechanical properties of polypropylene-clay hybrids using a maleic anhydride-modified polypropylene oligomer

✍ Scribed by Naoki Hasegawa; Masaya Kawasumi; Makoto Kato; Arimitsu Usuki; Akane Okada

• Publisher: John Wiley and Sons
• Year: 1998
• Tongue: English
• Weight: 192 KB
• Volume: 67
• Category: Article
• ISSN: 0021-8995
• DOI: 10.1002/(sici)1097-4628(19980103)67:1<87::aid-app10>3.0.co;2-2

✦ Synopsis

Polypropylene-clay hybrids (PPCH) were prepared using a maleic anhydride-modified PP oligomer (PP-MA) as a compatibilizer. PP was melt-blended with organophilic clay which was intercalated with PP-MA. In these PPCHs, the particles of silicate layers were dispersed at the nanometer level. The particles became smaller and were dispersed more uniformly, as the ratio of PP-MA to the clay was increased. The dynamic storage moduli of the PPCHs were higher than that of PP up to 130ЊC. For example, the modulus of the PPCH with 5 wt % clay and 22 wt % PP-MA was 1.8 times higher compared to that of PP at 80ЊC. As the dispersibility of the clays was improved, the reinforcement effect of the clays increased.