However, these freezing point depression methods are not very effective in enhancing mechanical properties, and some methods even weaken the hydrogels (Sadeghi and Jahani, 2012). Herein, we proposed a method of fabricating tough polyvinyl alcohol (PVA) hydrogel with a low freezing point by ...
2.The method of manufacturing freeze proof rock expanded AN explosive through reducing thesolidifying pointof composite oil phase is introduced in this paper.介绍了通过降低复合油相的凝固点来制备抗冻型岩石膨化硝铵炸药的方法 ,对多种抗冻剂的抗冻性能进行了测试和分析 ,并得出最佳的抗冻复合油相配方及其炸药。
4d), which is likely corresponding to the freezing point of water in MAPAH fibers. The DSC result and the great stretchability at low temperatures indicate that MAPAH fibers possess a remarkable anti-freezing property. Upon the decrease of temperature, the conductivity of MAPAH fibers decreases ...