http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104607058-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D67-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D69-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D71-30 |
| filingDate | 2014-12-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2017-06-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2017-06-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-104607058-B |
| titleOfInvention | A kind of production method of polyvinyl chloride hollow fiber microfiltration membranes |
| abstract | The present invention relates to a kind of production method of polyvinyl chloride hollow fiber microfiltration membranes, each substances in percentage by weight meter, polyvinyl chloride 16-25%, composite pore-forming 10-30%, balance of solvent are carried out according to the following steps：(1) by polyvinyl chloride, a certain amount of solvent input agitator, dissolving in 24 hours is stirred at 80 DEG C and forms uniform solution；(2) composite pore-forming and balance solvent are put into, continues to be stirred 24 hours at 80 DEG C；(3) deaeration in 48 hours is stood after filtering, and is cooled to 55 DEG C and obtain casting solution；(4) with conventional dry-wet spinning.The polyvinyl chloride hollow fiber microfiltration membranes for preparing in the process of the present invention, tensile strength is more than 2.5MPa, and bubble point pressure is 0.03-0.4MPa, and intensity is ensure that while uniform large aperture is obtained, and can be applied to the projects such as sewage disposal, concentrating and separating. |
| priorityDate | 2014-12-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 37.