http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112279972-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_378f502df7deaca01c01de9b8c3c003a |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F283-008 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F216-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F230-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F283-00 |
| filingDate | 2020-11-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_43e20d7213bf44153b2e25518ab82786 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_99e3a0901eddb8b0a955d8e23db4e72f |
| publicationDate | 2021-01-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-112279972-A |
| titleOfInvention | A kind of flame retardant polyurethane material and preparation method thereof |
| abstract | The invention discloses a flame-retardant polyurethane material and a preparation method thereof, comprising the following steps: (1) adding polyol, diol with double bond and polymerization inhibitor into a reaction kettle according to the mass fraction, stirring at 200 r/min while stirring Heat to 80‑120 o C, evacuate to ‑0.04 to ‑0.1Mpa, hold for 1‑3h, remove the water in the alcohol, then pass nitrogen to normal pressure, cool down, add catalyst of diisocyanate, and heat to 50‑ 90 o C, react for 2-4h, cool down to obtain prepolymer; (2) add chain extender, spiroindene monomer phosphorus-containing acrylate monomer, free radical initiator to prepolymer, 200r/min edge While stirring, heat to 50‑70 o C, react for 1‑3h, evacuate to ‑0.04 to ‑0.1Mpa, hold for 1‑3h, remove air bubbles, then inject the reaction solution into the mold, continue reaction 4 at 100‑130 o C ‑8h, cooling to 40‑50 o C and curing for 24‑48h to obtain a flame retardant polyurethane material. The polyurethane material obtained by the present invention has good flame retardancy and hydrophobicity, prevents fire from occurring during use, and reduces the performance of the polyurethane material due to water absorption during long-term use. |
| priorityDate | 2020-11-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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