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Formulating of a novel polyolefin hazy film and the origins of haze thereof

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Abstract

A novel and thin polyolefin hazy film with high haze (>75%), low gloss, and high light transmittance was prepared by the blending polyethylene (PE) with polypropylene (PP) rather than the reverse applying measurements which improved clarity, although Chen and Lue et al. (Annual Technical Conference Proceedings of SPE (2004), pp 2117–2121 and 2140–2143) employed blending to reduce haze. This study also presents the low melt flow rate, high density PE1 blending with PP1, and the blending ratio of 50/50 (wt/wt), are the key factors to prepare the novel polyolefin hazy film. The major origin of total haze of the hazy film was explored. It is found that surface haze is the overwhelming majority of total haze, which is opposite to earlier works about the source of total haze of the films prepared from polymer blend. That rough surface textures was the intrinsic source yielding surface haze, and also huge surface roughness degree (Ra) was the reason of the excellent haze properties in the hazy film, was confirmed based on haze measurement, surface topology images and Ra data from haze instrument, optical microscopy, and atomic force microscope, respectively.

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Acknowledgments

The authors thank Zhongda Group Co., Nanjing, for supplying some resins, test apparatus, and samples employed in this study, and also thank to teacher, Fang Lan, fellow, Yang Feng and schoolmates, Xiao-Feng Yu and Ya-Juan Gao for their kindly support in writing and editing this paper and operating some apparatus.

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Authors and Affiliations

  1. School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 200240, Shanghai, People’s Republic of China

    Xiao-Yong Chen

  2. School of Materials Science and Engineering, North University of China, 030051, Taiyuan, People’s Republic of China

    Xiao-Yong Chen

  3. The State Key Laboratory of Polymer Materials Engineering, Institute of Polymer Research, Sichuan University, 610065, Chengdu, People’s Republic of China

    Ming Xiang

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  1. Xiao-Yong Chen
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  2. Ming Xiang
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Correspondence to Ming Xiang.

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Chen, XY., Xiang, M. Formulating of a novel polyolefin hazy film and the origins of haze thereof. Polym. Bull. 64, 925–937 (2010). https://doi.org/10.1007/s00289-009-0229-6

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  • DOI: https://doi.org/10.1007/s00289-009-0229-6

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