CORROSION BEHAVIOUR OF POLYPROPYLENE IN ITACONIC ACID

J Chin Soc Corr Pro

1998, Vol. 18

Issue (2): 95-101 DOI:

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CORROSION BEHAVIOUR OF POLYPROPYLENE IN ITACONIC ACID

LONG Jin-ming FAN Ai-min SI Yun-sen ZHANG Xiao-yu (Kunming University of Science and Technology; Kunming 650093)

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Abstract The corrosion behaviour of polypropylene (PP) plastics was studied by examining the weight change, appearance, mechanical properties (hardness and impact strength) and molecular structure of specimens after immersion in itaconic acid aqueous solutions. It was found that the corrosion of PP plastics could be attributed to the diffusion and permeation of the media, dissolution of certain assistants and oxidation of PP resin, which were dependent on the composition and temperature of the media. As a result, the impact strength of the plastics decreased to some extent whereas the hardness remained almost unchanged. It could be concluded that the corrosion resistance of PP plastics in itaconic acid aqueous solutions was quite good.

Key words: Plastics Polypropylene Corrosion Itaconic acid

Received: 25 April 1998

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LONG Jin-ming FAN Ai-min SI Yun-sen ZHANG Xiao-yu (Kunming University of Science and Technology; Kunming 650093). CORROSION BEHAVIOUR OF POLYPROPYLENE IN ITACONIC ACID. J Chin Soc Corr Pro, 1998, 18(2): 95-101.

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https://www.jcscp.org/EN/ OR https://www.jcscp.org/EN/Y1998/V18/I2/95

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