A polylactic acid fiber support material and a preparation method and application thereof
By improving the composite materials of polylactic acid fibers, a composite structure of a tough support layer and a fine filter layer is formed, which solves the problems of strength, thermal stability and hydrophilicity of polylactic acid fibers in meltblown filtration, achieving high-efficiency filtration and full degradation, and is suitable for a variety of filtration applications.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- ZHEJIANG SHENGLAN NEW MATERIAL&TECH CO LTD
- Filing Date
- 2026-04-09
- Publication Date
- 2026-07-17
AI Technical Summary
Polylactic acid fibers have problems such as low strength, high brittleness, poor thermal stability and strong hydrophilicity in meltblown filtration applications, making it difficult to achieve high filtration efficiency standards.
A combination of materials such as polylactic acid, polybutylene terephthalate, polybutylene succinate, and epoxidized soybean oil is used. The mechanical properties and processing fluidity of the materials are improved by composite modifiers, chain extenders, and interfacial compatibility modifiers, forming a composite structure of a tough support layer and a fine filtration layer.
It significantly improves the filtration efficiency and durability of materials, enhances flexibility and processing flowability, and meets the dual requirements of high performance and full degradation. It is suitable for medical masks, personal care products, food packaging filtration, and industrial filtration.
Smart Images
Figure CN122406418A_ABST