Full
Outline
Tubular ultrafiltration membrane technology is increasingly being adopted across various fields, including pharmaceutical purification, biomolecule separation, and wastewater treatment, owing to its outstanding performance. The current technology research and patent activities are primarily focused on material selection, structural optimization, and process improvement. Among these aspects, the chemical stability of tubular ultrafiltration membranes has become a central research focus and a prerequisite for broader application, which also drives the consistent annual growth in related patent filings. This paper focuses on the application trend of chemical-resistant tubular ultrafiltration membrane in the world and China, and the technology efficiency analysis of tubular ultrafiltration membrane. The hot spot, blank spot and weak spot of tubular ultrafiltration membrane technology are analyzed. The technical context of chemical-resistant tubular ultrafiltration membrane in separation layer material, support material and preparation method is thoroughly combed, the improvement law and evolution route of chemical-resistant tubular ultrafiltration membrane patent technology are sought, and the research and development advice from technical improvement level is provide.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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