Polyimide PI

E nwere ike kewapụ polymidise bụ ihe owuwu nwere polyclic hotocyclic nke njikọ dị na Benocyclic (PI POLYAMID (PI) na poliletamimide (PI)) ) usoro anọ.

PI dị ugbu a na ụdị kachasị mma nke injinịa nke ọma, ụfọdụ iche nwere ike iguzogide ogologo 290 ℃ elu okpomọkụ nke oge dị mkpụmkpụ nke 490 ℃, kamakwa dị ala, dịka -269 ℃ mmiri mmiri agaghị enwe ike. Na mgbakwunye, Njirimara arụ ọrụ, ike ọgwụgwụ, nkwụsi ike, ihe na-eguzogide mmanụ, na-eguzogide mmanụ na-eguzogide, Njirimara. A ga-eji ọgwụ na-egbu egbu, iji mepụta tebụl na akụrụngwa ọgwụ, yana iguzobe ọtụtụ puku ugboro.

Picingzọ ndị na-akpụzi usoro gụnyere ịkpụzikọ, impregnination, ịkpụ akpụ, na-egbu, mkpuchi, na-egbu egbu, na ịkpụzigharị.

Akụkọ banyere mmepe nke mmepe

Polymide (PI), nke mbụ pụtara na 1955 Edwards, na 1961 dupin mepụtara poly (retramethylene tetracarxylic acid) minitlene tetracarboxylic acid, ma ree na ahịa nke KABON. 1972 General Motors malitere nyocha na mmepe nke polyathamimide (pei) na United States, na 1982, ka e wuru 10,000 nkeji na-emepụta ihe n'okpuru azụmahịa nke Ezure. Mgbe nke ahụ gasịrị, ụlọ ọrụ ndị MUSUI, Mitsui Chemical na ụfọdụ mba Europe achọpụtala mmepụta azụmahịa nke Polylimide. Ruo ugbu a, pollimide nwere ihe karịrị 20 iche, United States, Europe na Japan, ihe karịrị ndị na-emepụta 40. South Korea, Malaysia, Russia na China nwere obere ndị na-emepụta ihe na mmepụta yana itinye Polyimide. 2005, ikike imepụta ụwa nke mkpụrụ 60,000, nke, China kwuru ihe dị ka puku tọrọ 5,000.

Akwukwo icho oru

PI nwere ngwa na ụgbọ ala, elektrọnik, igwe elektrọnik, igwe na-eme ihe, igwe na-eme ihe na kọntaktị igwe, na-ejikwa ya Dị ka injin ọdụ ụgbọ ala, ndị na-ahụ maka ụgbọ mmiri, ihe na-emegharị emegharị, ihe mgbochi na-emegharị, akụkụ na-eguzogide ya, oke ikuku na-apụta Gars n'ime ụlọ ọrụ igwe, a nwekwara ike iji ya na ụlọ ọrụ na-arụ ọrụ. Oke nke na-egbu maramara nke na-egbu maramara, igwe na-atọ ụtọ na Piston igwe, akara ọkụ, ndị na-ere ọkụ, ahịhịa, wdg.

Polyyatmidide nwere ihe eji arụ ọrụ na-arụ ọrụ dị mma, ihe mkpuchi mkpuchi ọkụ eletrik, ikuku na-emebi emebi, na-agbazekwa naanị 0,5% ~ 0.7%. Pei nwere ike ịbụ ọgwụ na ịkpụzi ịkpụzi, enwere ike ịghazi ụzọ na-emegharị ma ọ bụ usoro ịgbado ọkụ na ngwa ọrụ, a na-eji ngwa ngwa, akụrụngwa na ọrụ ndị ọzọ. GO bụ onye na - emepụta ụwa nke FEI, na ụfọdụ ụlọ ọrụ mgbanwe nke mba ọzọ iji nye alioys na ngwaahịa ndị ọzọ agbanweela. Ihe omume mmepe bu ihe eji eme ka p-phenylenestiamine ma ọ bụ ya na plastik ndị ọzọ pụrụ iche alloy ka melite okpomoku ya; ma ọ bụ jiri pc, pa na plastik nke ndị ọzọ na-eme ka ọ dịkwuo mma.

Ike polidide-modide kacha elu na-enweghị ike na-enweghị ike, agba a na-enwe ike nke 190MPA, na-agbagha ike nke 250MPA. 1.8MPA Ibu okpomoku na-agbagha nke 274 ℃. PAI nwere ezigbo nguzogide na okpomoku di elu, ugboro ugboro n'okpuru ngwongwo electromagnetic nke ọla na ihe ndị ọzọ nwere ezigbo nomba. A na-ejikarị ya eme ihe maka gears, rollers, na-ada ma kewaa canks nke conks, wdg.