http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109721751-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L67-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-682 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-86 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K3-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J5-18 |
| filingDate | 2018-12-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-02-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-02-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109721751-B |
| titleOfInvention | Polyester film and preparation method thereof |
| abstract | The invention relates to a polyester film and a preparation method thereof, wherein the preparation method comprises the following steps: after the modified polyester melt is melted and extruded, cooling and solidifying, and then carrying out multi-stage longitudinal stretching, transverse stretching, heat setting and rolling to obtain a polyester film; the prepared polyester film is made of modified polyester, the molecular chain of the modified polyester comprises a terephthalic acid chain segment, a glycol chain segment, a 2,2,3,4,5, 5-hexamethyl-3, 4-hexanediol chain segment and a fluorine-containing diacid chain segment, and doped modified Bi is dispersed in the modified polyester 2 O 3 Powder; the doping modification process comprises the following steps: first, Ca is contained 2+ And a solution containing Bi 3+ The solution is uniformly mixed, then a precipitator is dripped until the pH value of the mixed solution is 9-10, and finally the precipitation product is calcined. The preparation method has simple process and low cost, and the degradation rate of the polyester is accelerated by modifying the polyester; the prepared product has good mechanical property and high degradation efficiency, and is beneficial to environmental protection. |
| priorityDate | 2018-12-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 57.