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以浓缩天然胶乳并用20份MG49天甲胶乳作胃管基础管身胶料可有效提高管身硬度和撕裂强度,并解决纯天然胶乳管身硬度不足、临床不易插管的难题,而对产品工艺性能及其他性能无不良影响。用“硝酸钙+工业酒精+表面活性剂”代替“硝酸钙+生粉附型剂+表面活性剂”作凝固体系,可改善胃管球囊胶膜厚度的均匀性。对胃管球囊内表面做适度氯化处理,可克服球囊与胃管管身产生的粘连或粘伤。适当改变绑线位置可有效减少胃管球囊胶膜出现的龟裂纹;球囊绑线处涂覆氯仿值二中~三中(见表9注)、总固体25%~35%的胶料3~4次,可获得较好涂胶效果。
In order to concentrate the natural latex and use 20 MG49 days of latex as a basic plastic tube body tube can effectively improve the body hardness and tear strength and to solve the lack of hardness of natural latex tube difficult clinical intubation problems, Process performance and other properties without adverse effects. With “calcium nitrate + industrial alcohol + surfactant” instead of “calcium nitrate + raw meal powder + surfactant” as the coagulation system, can improve the uniformity of gastric tube capsule film thickness. Right gastric tube balloon surface to do moderate chlorination, can overcome the balloon and stomach tube body adhesion or stick injury. Appropriate changes in the location of tie line can effectively reduce the occurrence of turtle cracks in the gastric tube capsule; coated with chloroform at the balloon line two ~ three (see Table 9 Note), the total solids of 25% to 35% of the plastic Material 3 to 4 times, get better glue effect.