一种可重复使用医用手术衣的热熔胶贴条及其制备方法
By employing a three-layer structure consisting of a hot melt adhesive layer, a waterproof layer, and a bird's-eye fabric substrate layer, and utilizing the cross-linking and curing of fluorinated polyurethane and closed polyurethane, the problem of hot melt adhesive strips easily melting at high temperatures is solved, achieving the heat resistance and waterproof performance of reusable medical surgical gowns.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- ZHEJIANG SCI-TECH UNIV
- Filing Date
- 2023-07-13
- Publication Date
- 2026-07-17
AI Technical Summary
The hot melt adhesive strips on existing medical surgical gowns are prone to absorbing water, swelling, and melting during steam sterilization and high-temperature washing, resulting in loss of protective function and failing to meet the requirements for reusability, temperature resistance, and waterproofing.
It adopts a three-layer structure of hot melt adhesive layer, waterproof layer and bird's eye cloth substrate layer. The hot melt adhesive layer is composed of hot melt polyurethane elastomer, fluorinated polyurethane and blocked polyurethane hot melt adhesive, which is prepared by extrusion casting through a twin screw extruder. Fluorinated polyurethane increases hydrophobicity, and blocked polyurethane crosslinks and cures at high temperature to improve temperature resistance.
The hot melt adhesive strip remains stable at high temperatures, with an adhesion strength of over 11 N/cm. After 50 cycles of "wash-disinfection", the hydrostatic pressure still reaches 10,000 mmH2O, ensuring the protective effect at the seams of the surgical gown.
Smart Images
Figure CN116875216B_ABST