http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103521094-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_f99660f83211cb1afa97103ea29001d6 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D69-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D67-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D71-34 |
| filingDate | 2013-10-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1d62066895c54d4b8e1f1bac7cb42479 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_aeda96167e83b96a1b7849a3063fafa6 |
| publicationDate | 2014-01-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-103521094-A |
| titleOfInvention | Preparation method of composite hollow fiber membrane |
| abstract | The invention relates to a preparation method of a composite hollow fiber membrane. The preparation method is characterized by comprising the following steps of preparing casting membrane liquid; preparing core liquid and an outer coagulation bath; spinning hollow fibers: utilizing dry-wet spinning equipment to inject the core liquid and the casting membrane liquid into a spinning nozzle together, and extracting the core liquid and the casting membrane liquid from the spinning nozzle together, thus preparing hollow fiber membrane silk; after passing the hollow fiber membrane silk obtained in the previous step through a 0-25cm dry spinning line, enabling the hollow fiber membrane silk to enter a first coagulation bath and a second coagulation bath in sequence to undergo coagulation phase conversion, thus forming a polymer hollow fiber porous membrane with micropore canals. The composite membrane technology is adopted in the preparation method of the composite hollow fiber membrane, so that the composite hollow fiber membrane with stable performance, appropriate pore diameter, high water flux and high strength can be spun. The preparation method has the beneficial effects that the whole technological process is easy to control, the cost is low, and industrialization is easy to implement. |
| priorityDate | 2013-10-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 31.