Pyromellitic Dianhydride Ine CAS 89-32-7
Iyo pyromellitic dianhydride (yakapfupikiswa sePMDA), iyo inonyanya kushandiswa kugadzira polyimide, nekuti polyimide ine yakanakisa-yakanyanya kupisa kupisa, asidhi uye alkali kuramba, yakanakisa Nekuda kwema mechanical properties, magetsi emagetsi uye dimensional kugadzikana, yakawanda kwazvo. inoshandiswa munzvimbo dzepamusoro-soro dzakadai sendege, aerospace, microelectronics uye atomic simba, izvo zvine zvinodiwa zvakasimba pane zvinhu zvenyama.
| Item | Standard |
| Chitarisiko | Makristasi machena |
| Melting point | 286 ℃-288 ℃ |
| Free acid kukwikwidza | ≤0.5wt% |
| PURITY(%) | ≥99.5% |
Pyromellitic dianhydride (PMDA) chinhu chakakosha mbishi muindasitiri yeorganic synthesis, pamwe neyakaomeswa mbishi yekugadzirwa kwezvinhu zvitsva zvemakemikari uye yakakwira kukosha-yakawedzerwa zvigadzirwa zvemakemikari.Inonyanya kushandiswa kugadzira polyimide monomers, uye inogona zvakare kushandiswa seMushonga wekurapa epoxy resin uye cross-linking agent yepolyester resin, inoshandiswa mukugadzira phthalocyanine dhayi yebhuruu uye zvimwe zvakakosha zvinobva, nezvimwewo, uye ine kushandiswa kwakasiyana-siyana.Pyromellitic dianhydride, inozivikanwawo sehomoanhydride, ine yakakosha mamolecular chimiro uye inogona kushandiswa kugadzira zvinhu zvine kupisa kupisa, kuvharwa kwemagetsi uye kupikisa kwemakemikari, pakati peiyo inonyanya kukosha kushandiswa ndeye monolayer ye polyimide.Inogadzirwa neine anonhuwirira diamine kuwana polyimide purasitiki, asi kuchena kwepyromellitic dianhydride kwakakwira zvakanyanya, inoda kudarika 99%.
25kgs/drum, 9tons/20'container
25kgs/bag, 20tons/20'container
Pyromellitic Dianhydride Ine CAS 89-32-7
Pyromellitic Dianhydride Ine CAS 89-32-7
