海管封堵用聚乙烯醇弹性体的制备及性能
Plant Maintenance Engineering（2022）
Abstract
以甘油为增塑剂对PVA进行增塑改性制备PVA弹性体,采用TGA、DSC、XRD等对弹性体的热性能、分子间氢键相互作用以及结晶性进行研究.结果表明,PVA弹性体水溶性良好,30℃溶解3 h后样品溶解率达到90％;甘油与PVA间的氢键作用,使得PVA弹性体熔点和结晶性下降.相关力学测试结果表明,该材料以弹性为主,最大拉伸强度可达57.0 MPa,断裂伸长率达83.6％.
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