MODIFICATION ON HYDROLYTIC STABILITY OF POLYURETHANE BY INTRODUCTION OF POLYPROPYLENE GLYCOL

Abstract

Abstract: The polyurethane elastomer is widely used in building materials, transportation products, machinery and medical applications and many other fields, due to its excellent overall performance. In this paper, the effects of HDI content and PPG content on mechanical properties of the polyurethane elastomers and hydrolytic stability were investigated. Infrared spectroscopy showed that, with the reduction and PPG, HDI content of hydrogen bond formation region, absorption peak intensity increased, indicating that the increase of hydrogen bonds in the polyurethane. Polyurethane elastomers hydrolytic stability test results showed that the increase on the content of PPG contributes to better hydrolytic stability and the decrease of HDI.

Key words: polyurethane, hydrolytic stability, composites

CLC Number:

TB332

TANG Ling, WEN Liang, WANG Jun. MODIFICATION ON HYDROLYTIC STABILITY OF POLYURETHANE BY INTRODUCTION OF POLYPROPYLENE GLYCOL[J]. Fiber Reinforced Plastics/Composites, 2016, 0(9): 86-90.

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MODIFICATION ON HYDROLYTIC STABILITY OF POLYURETHANE BY INTRODUCTION OF POLYPROPYLENE GLYCOL

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