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Investigation on preparation and property of nano‐CaCO 3 /PP masterbatch modified by reactive monomers

2006; Wiley; Volume: 101; Issue: 6 Linguagem: Inglês

10.1002/app.24523

1097-4628

Lin Zhidan, Zishou Zhang, Zhenzhen Huang, Mai Kan-cheng,

biodegradable polymer synthesis and properties

Abstract Nano‐CaCO 3 /polypropylene (PP) masterbatch containing above 80 wt % nano‐CaCO 3 was prepared by nano‐CaCO 3 coated PP modified by reactive monomers. The chemical interaction, crystallization and melting behavior, thermal stability, morphology, and surface contact angle of masterbatch were investigated with IR, DSC, TEM, TGA, ESCA, and surface contact angle. The results indicated that nano‐CaCO 3 was coated by PP graft copolymers in the masterbatch modified by reactive monomers. The graft ratio and crystallization and melting behavior of PP in the masterbatch depended on the type and content of reactive monomer. The crystallization temperatures of masterbatch modified by reactive monomer is methyl methacrylate > butyl acrylate > methyl acrylate ≈ mixture of acrylic acid and styrene > unmodified ≈ maleic anhydride ≈ acrylic acid > styrene. Modification by reactive monomer increased the thermal stability and surface contact angle of masterbatch. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 101: 3907–3914, 2006