排序方式: 共有13条查询结果,搜索用时 390 毫秒
1.
目的 探讨热熔胶贴膏基质及热熔胶贴膏制备技术。方法 通过不同配方分析出合理的热熔胶基质组分;结合设备论述热熔胶贴膏生产工艺,探讨热熔胶贴膏生产操作要点,分析生产热熔胶贴膏的优点、存在问题与解决方法,展望热熔胶贴膏的发展前景。结果 由符合中国药典2020年版制剂通则的聚合基体、增塑剂、增黏剂组成的热熔载体胶,比较适合作为热熔胶贴膏剂的基质;混料和涂胶是生产热熔胶贴膏的重点岗位,低温操作与合理的加药顺序能够减少药物有效成分损失,透气性好的骨架材料和小分子量高相容性的药物有利于药物释放,亲水性材料制成的热熔胶基质能够改善其耐汗性。结论 生产热熔胶贴膏与天然橡胶贴膏相比,产品外型美观,贴用舒适,无刺激性、弱过敏,设备投资少,工艺简单,生产效率高,安全,环保。以热熔胶作基质代替天然橡胶基质生产贴膏剂是未来发展方向,热熔胶贴膏有很好的发展前景。 相似文献
2.
3.
4.
5.
BACKGROUND: Hot-melt adhesive is safe and environmental friendly adhesive due to free of solvent, which is particularly suitable for medical applications.
OBJECTIVE: To describe the types and characteristics of currently used hot-melt adhesives and to prospect the technical research and development of hot-melt adhesive for polyolefin tubes or catheters as well as to point out the corresponding key points to the hot-melt adhesion.
METHODS: Literature search was carried out in SCI, Elsevier, and CNKI with the key words of “hot melt adhesive, medical application” in English and Chinese, respectively, for the initial retrieval of relevant articles or patents published January 1995 to December 2015.
RESULTS AND CONCLUSION: To date, the medical hot-melt adhesives reported in the literature could be grouped as amorphous polyolefin, thermoplastic elastomer, acrylic and polyurethane types. The heat resistance of the most of the hot-melt adhesives does not meet the requirement for steam sterilizing process. In the present review, a strategy is proposed to develop a novel hot-melt adhesive which is good for binding polyolefin parts and can undergo the sterilization process. Given this, it is essential to choose a kind of polypropylene random copolymer with a suitable melting point as a substrate. With the aid of an adjuvant agent, therefore, we can develop a novel hot-melt adhesive that exhibits a lower melting point than the polyolefin tube, withstands steam sterilization temperature to ensure that the tube is not deformed during melt adhesion and is not become invalid during sterilization. 相似文献
6.
7.
故障一:经常性报错207,每次重新连接键盘下方从HOST过来到CPM的USB连线后,系统就能正常工作一段时间。分析及解决:对于键盘问题的207,由于设计上的原因,设备使用一段时间后,连接线会出现磨损的现象,导致无法使用小键盘。使用新型卡扣接口之后就基本消除了这一问题。查看手册,经过对比,确认从后端到键盘的线的Seg1和Seg2的接头是完全一样的。 相似文献
8.
环状碳酸乙烯酯(EC)分别与乙二胺、己二胺开环反应合成1,2-乙二氨基甲酸羟乙酯(EDHU)与1,6-己二氨基甲酸羟乙酯(HDHU),用FT-IR、1H-NMR、13C-NMR等手段对其结构进行表征并作为扩链剂与二异氰酸酯(MDI)、聚酯多元醇反应制备聚氨酯热熔胶,对热熔胶的黏结性能、结晶性能、微相分离程度、表面张力及流变性能进行研究,结果表明:EDHU与HDHU作为扩链剂合成的聚氨酯热熔胶的微相分离程度分别为91.2%和83.9%,与传统的1,4-丁二醇(BDO)扩链剂合成的热熔胶相比,EDHU合成的热熔胶黏结强度提高了20%。 相似文献
9.
本文对旧的高压电缆气密性试验装置进行了技术缺陷分析,创新设计了一种新型的高压电缆快速充气试验装置,阐述了新型高压电缆快速充气试验装置的优点,并且对新研制的气密性试验装置进行了试验应用说明。 相似文献
10.