Pyromellitic Dianhydride ine CAS 89-32-7

CAS:89-32-7

MF:C10H2O6

MW:218.12

EINECS Nhamba:201-898-9

Mazwi akafanana:1,2,4,5-Benzenetetracarboxylic1,2:4,5-dianhydride; 1,2,4,5benzenetetracarboxylic1,2:4,5dianhydride; 1,2,4,5-benzenetetracarboxylic1,2:4,5-dianhydride; 1,2,4,5-Benzenetetracarboxylic1,2:4,5-dianhydride; 1,2,4,5-Benzenetetracrboxylicdianhydride; pyromelliticacidanhydride; pyromelliticaciddianhydride; Pyromelliticanhydride; 1,2,4,5-BENZENETETRACARBOXYLICANHYDRIDE

Siya Mharidzo Yako

Ruzivo rweChigadzirwa

Dhawunirodha

Matagi eChigadzirwa

Chii chinonzi Pyromellitic Dianhydride neCAS 89-32-7?

Iyo pyromellitic dianhydride (yakapfupikiswa sePMDA), iyo inonyanya kushandiswa pakugadzira polyimide, nekuti polyimide ine simba rekudzivirira kupisa kwakanyanya, inodzivirira asidhi uye alkali, yakanaka kwazvo. Nekuda kwehunhu hwayo hwemakanika, hunhu hwemagetsi uye kugadzikana kwehukuru, inoshandiswa zvakanyanya muminda yepamusoro-soro senge ndege, aerospace, microelectronics uye atomic energy, ine zvinodiwa zvakanyanya pahunhu hwezvinhu.

Tsanangudzo

Chinhu	Zvakajairika
Chitarisiko	Makristasi machena
Mnzvimbo yekuwedzera	286℃ -288℃
Kukwikwidzana kweasidhi yemahara	≤0.5wt%
KUCHENA(%)	≥99.5%

Kushandiswa

Pyromellitic dianhydride (PMDA) chinhu chakakosha muindasitiri yekugadzira organic synthesis, pamwe chete nezvinhu zvakakosha zvekugadzira zvinhu zvitsva zvemakemikari uye zvigadzirwa zvemakemikari akanaka zvakanyanya. Inonyanya kushandiswa kugadzira polyimide monomers, uye inogona zvakare kushandiswa seCuring agent ye epoxy resin uye cross-linking agent ye polyester resin, inoshandiswa mukugadzira phthalocyanine blue dye nezvimwe zvinhu zvakakosha, nezvimwewo, uye ine mashandisirwo akasiyana-siyana. Pyromellitic dianhydride, inozivikanwawo se homoanhydride, ine chimiro chakakosha chemorecular uye inogona kushandiswa kugadzira zvinhu zvine resistance yekupisa, insulation yemagetsi uye resistance yemakemikari, pakati pazvo kushandiswa kwakanyanya kuri se monolayer ye polyimide. Inogadzirwa ne aromatic diamine kuti iwane polyimide plastic, asi kuchena kwe pyromellitic dianhydride kwakanyanya, izvo zvinoda kupfuura 99%.