摘要
目的研究一种既具有湿度调节功能,又具有缓冲吸能特性的新型缓冲包装材料的制备及性能,解决部分精密仪器运输存贮中受潮或过于干燥影响精度的问题。方法利用微波发泡方法制备得到具有调湿功能的发泡缓冲包装材料,研究影响该材料发泡性能、调湿性能、缓冲性能的因素,并对最佳组分配比下制得发泡材料的性能进行测试。结果微波发泡功率为122.5 W,丙烯酸-丙烯酸钠与丙烯酰胺质量比为4∶1,KGM基调湿材料初始含水体积为6.5 m L时,所制得调湿发泡材料的性能最佳,能在180min内将密闭容器内环境的相对湿度调节至(50±5)%,同时该材料还具有优异的缓冲吸能特性,单位体积总吸收能量为1.73 J/cm^3,最小缓冲系数为3.32。结论影响该新型发泡材料的发泡性能、调湿性能和缓冲性能的因素有微波发泡功率,丙烯酸-丙烯酸钠与丙烯酰胺的质量比,魔芋葡甘聚糖(KGM)基调湿材料的初始含水体积。
The work aims to research the preparation and performance of a new cushion packaging material with the humidity regulation function and buffer energy-absorption property, so as to solve the problem that the precision is affected because part of the precision instruments is damped or excessively dry during the transportation and storage. The foaming buffer packaging material with humidity regulation function was prepared by microwave foaming process. The factors affecting the foaming performance, humidity regulation performance and cushioning performance were researched. The performances of foaming material prepared under the best component ratio were tested. When the microwave foaming power was 122.5 W, the mass ratio of acrylic acid-sodium acrylate and acrylamide was 4 ： 1, and the initial water content of KGM-based humidity regulation material was 6.5 mL, the prepared foaming humidity regulation material had the best performance, and such material could regulate the relative humidity of an air-tight container to （50±5）% within 180 min; meanwhile, such material had excellent buffer energy absorption property, with total absorbed energy in unit volume of 1.73 J/cm^3 and the minimum cushioning coefficient of 3.32. The factors affecting the foaming performance, humidity regulation performance and cushioning performance of such new foaming material include microwave foaming power, mass ratio of acrylic acid-sodium acrylate and acrylamide, and initial water content of konjac glucomannan （KGM）-based humidity regulation material.
出处
《包装工程》
CAS
北大核心
2017年第11期38-44,共7页
Packaging Engineering
基金
国家自然科学基金(51303160)
浙江理工大学521人才培养计划
关键词
调湿功能
发泡材料
KGM基调湿材料
humidity regulation function
foam material
KGM-based humidity regulation material
