BPADA CAS 38103-06-9

CAS:38103-06-9

Te Parakore:≥98%

Tātai ngota:C31H20O8

EINECS:253-781-7

Kupu ōrite:4,4'-(4,4'-Isopropylidenediphenoxy) bis (phthalic anhydride)、2,2-Bis (4-(3,4-dicarboxyphenoxy) phenyl) propanedianhydride、BPADA、Bisphenol A dianhydride、4,4'-BISPHENOL A DIANHYDRIDE、5,5'-((1-methylethylidene) bis (4,1-phenyleneoxy)) bis-3-isobenzofurandione

Waiho tō karere

Taipitopito Hua

Tikiake

Ngā Tohu Hua

He aha te BPADA CAS 38103-06-9?

Ko te 4,4'-(4,4'-ISOPROPYLIDENEDIPHENOXY)BIS(PHTHALIC ANHYDRIDE) (BPADA) he monomer polyetherimide kua oti te whakarite, he momo polyimide whakarewa. Ehara i te mea ka mau tonu ngā āhuatanga pai katoa o te polyimide i te 4,4'-(4,4'-ISOPROPYLIDENEDIPHENOXY)BIS(PHTHALIC ANHYDRIDE) engari he rite tonu te mahi tukatuka ki ngā kirihou whānui. Heoi anō, he iti te utu o te 4,4'-(4,4'-ISOPROPYLIDENEDIPHENOXY)BIS(PHTHALIC ANHYDRIDE) ā, he pai mō te whakarite i ngā hua angiangi me ngā hua matatini hanganga.

Whakatakotoranga

TAONGA	PAEREWA
Āhua	Paura Mā
Te ihirangi matua % ≥	≥98%
Te pūwāhi rewa	188.0 - 192.0℃
Kiato	1.406g/cm³

Tono

1. Hangaia ngā hua polyimide (PI) mahi-teitei mō te kaupapa whānui

Koinei te whakamahinga matua me te tikanga o te BPADA. Ka whakakotahihia te BPADA ki ngā monomer diamine noa pēnei i te 4,4' -diaminodiphenyl ether (ODA) hei hanga polyimide e whakakotahi ana i te "ātete wera me te ngāwari o te tukatuka". Nā te noho mai o ngā here ether me ngā rōpū isopropyl i roto i tōna hanganga ngota, ka mau tonu te ātete pāmahana teitei o te PI (te pāmahana ratonga roa 180-220℃). He māmā ake hoki te hanga i te BPADA hei kiriata, hei pereti, me ētahi atu i te PI noa, ā, he mea whakamahi noa i roto i:

1) Ngā wāhanga ārai taketake i roto i te ao hikohiko: Kiriata turanga me te kiriata uhi mō te hanga papa ara iahiko tānga ngāwari (FPC), me te pepa ārai ātete pāmahana teitei/wani ārai mō ngā motuka me ngā whakawhiti hiko, hei whakatutuki i ngā whakaritenga "whakaiti me te ātete pāmahana" o ngā wāhanga hiko, pērā i te tiaki ārai ā-roto mō ngā hikohiko kaihoko me ngā motuka ahumahi.

2) Ngā wāhanga ā-ahumahi whānui e ātete ana ki te pāmahana teitei: I hangaia hei pereti me ngā ngongo PI, ka whakamahia hei whāriki ātete pāmahana teitei huri noa i ngā miihini motuka me ngā wāhanga ātete wera o roto o ngā taputapu whare (pēnei i ngā oumu me ngā oumu ngaruiti). Ka taea e rātou te tu atu ki ngā pāmahana neke atu i te 150℃ mō te wā roa, ā, he ātete ki te koroheketanga me te pakaru.

2. Whakarerekētia ngā kapia tuku iho hei whakarei ake i te mahi

I roto i te whakarerekētanga kapia tuku iho, ko te BPADA, hei "monomer whakapakari ātete-wera", e whakamahia whānuitia ana hei whakapai ake i te mahi a ngā kapia epoxy me ngā kapia phenolic me te whakawhānui ake i ngā āhuatanga tono:

1) Te whakarerekētanga o te kapia epoxy: Ina whakaranua ki te kapia epoxy noa, ka whakarei ake te BPADA i te ātete pāmahana teitei o te kapia (ka whakanui ake i te ātete pāmahana roa o te kapia kua rongoatia mai i te 120℃ ki te neke atu i te 180℃), ā, ka whakamahia hei here i ngā kurupae matua o ngā mata o te tāhū hau, hei paninga ārai hoki mō ngā taura ngaohiko teitei, kia tutuki ai ngā whakaritenga whakamahinga roa i roto i ngā taiao o waho, o ngā taiao ahumahi rānei.

2) Ngā rauemi mata taketake mō ngā paninga/piripiri ātete pāmahana teitei: Hei wāhanga honohono whakawhiti o ngā paninga me ngā piri, ka whakakotahihia te BPADA ki ngā kapia phenolic me ngā kapia silicone hei whakaputa paninga ātete pāmahana teitei mō ngā taputapu ahumahi (pēnei i ngā paninga ātete-waikura me te ātete-wera mō ngā pakitara o roto o ngā poiha me ngā paipa), me ngā piripiri ātete-mahana teitei e whakamaroke ana i te pāmahana rūma mō ngā konganuku me ngā uku. He mea whakamahi noa ēnei hei tiaki me te here i ngā taputapu miihini me ngā taputapu matū.