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Preparation and Performance of Compound Polyurethane Foam Plastic Board for Freezing Prevention in Channel Lining Wuquan He 1,a, Mingke Cai 1, b, Yubao Wang 1,c, Shuirong Zheng 2,d 1College of Water Resources and Architecture Engineering, Northwest A&F University, Yang ling, Shaanxi 712100, China 2School of Science，Northwestern Polytechnical University，Xian, Shaanxi 710072, China aemail：hewuquan1967@sina.com, bemail：cmk197006@163.com, cemail：wyb0406@sina.com, demail：zhengsr@nwpu.edu.cn Keywords: Canal Lining; Freezing Prevention; Particles of Cornstalks; Polyurethane Foam Plastic Abstract：The influence of different particle size and filling amount of particles of cornstalks on the density and compressive strength of polyurethane foam plastic board has been studied in this paper.
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