The effect of repeated freezing-thawing cycle on the structure and operational properties of membrane fabrics is investigated. It is established that the resistance of membrane fabrics to repeated freezingthawing depends on the structure and properties of the membrane coating, temperature, humidity, and the number of cryolysis cycles. The greater the moisture content of the material and the number of cryolysis cycles, the faster the membrane fabrics lose their initial quality indicators. A decrease in temperature and an increase in the number of cryolysis cycles lead to a 6-11% loss of strength during rupture in fabrics with a porous membrane and an 8-19% loss in fabrics with a non-porous membrane, as well as a 20-41% loss in water resistance. Vapor permeability increases by 47-79% in fabrics with a porous membrane and almost by a factor of 3 in fabrics with a non-porous membrane, which indicates structural changes and an increase in the diameter of pores and capillaries of the membranes.

中文翻译：

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低温对衣服用膜织物操作性能的影响

研究了反复冻融循环对膜织物结构和操作性能的影响。已经确定，膜织物对反复冻融的抵抗力取决于膜涂层的结构和性质，温度，湿度和冷冻分解循环的次数。材料的水分含量越高，冷冻循环的次数越多，膜织物失去其初始质量指标的速度就越快。温度的降低和冷冻分解次数的增加导致具有多孔膜的织物在断裂过程中的强度损失6-11％，而具有无孔膜的织物则导致8-19％的强度损失，以及耐水性下降20-41％。