http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111548615-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K3-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K2003-265 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K2003-2241 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2367-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2467-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K2201-003 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K13-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2431-04 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J5-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29C55-143 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L31-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K13-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L67-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J5-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K3-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K3-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K3-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29C55-14 |
| filingDate | 2020-05-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-11-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-11-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-111548615-B |
| titleOfInvention | Bidirectional stretching stereo composite polylactic acid film and preparation method thereof |
| abstract | The invention belongs to the field of polymer composite materials, and particularly relates to a bidirectional stretching stereo composite polylactic acid film and a preparation method thereof. The stereo composite polylactic acid film provided by the invention is prepared by melting, blending and cooling raw materials and then performing biaxial tension; the raw materials comprise: 50 parts by weight of levorotatory polylactic acid; 50 parts by weight of dextrorotatory polylactic acid; 15-30 parts by weight of a compatible blend; 0.5-5 parts by weight of an anti-blocking agent; the compatible blend includes polyvinyl acetate and/or poly-racemic lactic acid. The polylactic acid film with higher stereoregular composite crystallinity, heat resistance and mechanical strength is obtained by strictly controlling the dosage and the proportion of the levorotatory polylactic acid and the dextrorotatory polylactic acid in raw materials, adding a certain amount of compatible blend and anti-blocking agent and adopting a biaxial stretching process. The stereo composite polylactic acid film provided by the invention has the advantages of simple preparation process, high production efficiency, realization of large-scale industrial production and good market prospect. |
| priorityDate | 2020-05-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 44.