N'afọ ndị na-adịbeghị anya, ngwa nke plastik injinịa pụrụ iche ejirila nke nta nke nta gbasaa site na mpaghara ndị agha gara aga na ikuku ikuku ruo ọtụtụ ndị nkịtị, dị ka ụgbọ ala, nrụpụta akụrụngwa, na ngwa ahịa dị elu.N'ime ha, polyphenylene sulfide (PPS) na polyethertherketone (PEEK) bụ ụdị plastik injinia pụrụ iche nwere mmepe ngwa ngwa yana oke ngwa ngwa.
PEEK dị elu karịa PPS n'ihe gbasara ike, ike na oke okpomọkụ ọrụ.N'ihe gbasara nguzogide okpomọkụ dị elu, nguzogide okpomọkụ nke PEEK dị ihe dịka 50°C dị elu karịa nke PPS.N'aka nke ọzọ, uru ọnụ ahịa pụtara ìhè na arụmọrụ nhazi ka mma nke PPS na-eme ka a na-ejikarị ya eme ihe.
PPS nwere uru arụmọrụ ndị a:
(1) Ihe na-egbochi ire ọkụ
Different from PC and PA, PPS pure resin and its glass fiber/mineral powder filled composites can easily achieve V-0 @ 0.8mm or even thinner thickness V-0 flame retardant without adding any flame retardant level. Although PC and PA have cheaper prices and better mechanical strength (especially impact strength) than PPS, the cost of PC and PA composites with halogen-free flame retardant formulations (V-0@0.8mm level) is higher than that of PPS. It will rise sharply, and in many cases even higher than PPS materials with the same mechanical strength.
(2) Oke mmiri mmiri dị elu
Na mpaghara ngwa nke mkpuchi akwụkwọ ndetu, uru a pụtara ìhè karịa nke PC.Ọnụ ego mgbakwunye dị elu ọ bụghị nanị na-emetụta mmiri nke ihe ahụ ma mee ka ihe isi ike nhazi, ma na-ebutekwa nsogbu dị ka eriri ndị na-ese n'elu mmiri, nnukwu warpage na ihe ndị na-adịghị mma.Maka ọkara kristal PPS, oke mmiri ya dị elu na-enye ohere ijuputa eriri iko ahụ ngwa ngwa gafere 50%.N'otu oge ahụ, na usoro nke elu okpomọkụ gbazee ngwakọta na extrusion, ala viscosity nke PPS tụnyere PC nwere ike ime ka Glass emep uta eri eri ala etoju nke shiee na extrusion, butere a ogologo njigide ogologo na ikpeazụ injection kpụrụ isiokwu, nke. ọzọ na-abawanye modul.
(3) Mmụba mmiri dị ala
Nke a uru bụ tumadi maka PA.N'ihe gbasara mmiri mmiri, PA na PPS juru eju bụ ihe atụnyere;yana maka ihe eji arụ ọrụ, ihe mejupụtara PA nwere otu ego ndochi na-achịkarị.Nsonaazụ bụ na ntụpọ ntụpọ nke ngwaahịa PPS n'ihi nrụrụ mmịpụta mmiri dị ala karịa nke ngwaahịa PA n'okpuru otu ọnọdụ ahụ.
(4) Ụdị ígwè pụrụ iche na ike elu elu
Site Nchikota nke pụrụ iche ebu na ezi uche ebu okpomọkụ, PPS injection ịkpụzi akụkụ ga-emit a ụda yiri iti metal n'okpuru aka nke mmadụ aka, na elu ga-adị ka ire ụtọ dị ka a mirror, na a dara luster.
PEEK nwere ihe ndị a pụtara ìhè:
(1) Nguzogide okpomọkụ dị oke elu.
Enwere ike iji ya ogologo oge na 250 Celsius, okpomọkụ nwere ike iru 300 Celsius C n'otu ntabi anya, ọ na-esikwa ike ire ere n'oge dị mkpirikpi na 400 Celsius.
(2) Magburu onwe n'ibu Njirimara na akụkụ kwụsie ike.
PEEK nwere ike idowe ike dị elu na oke okpomọkụ.Ike na-ehulata na 200 Celsius ka nwere ike iru 24 MPa, na ike na-ehulata na ike mkpakọ na 250 ° C nwere ike iru 12-13 MPa.Ọ kachasị mma maka ịmepụta ngwaahịa na-aga n'ihu na okpomọkụ dị elu.akụrụngwa arụ ọrụ.PEEK nwere nkwụsi ike dị elu, nkwụsi ike akụkụ dị mma yana ọnụ ọgụgụ dị ala nke mgbasawanye linear, nke dị nso na aluminom ọla.Na mgbakwunye, PEEK nwekwara ezigbo nguzogide na-akpụ akpụ, nwere ike iguzogide nrụgide dị ukwuu n'oge oge ọrụ, ọ gaghị eme ka mgbatị dị ịrịba ama n'ihi ịgbatị oge.
(3) Nguzogide kemịkalụ mara mma.
PEEK na-eguzogide ọtụtụ kemịkalụ nke ọma, ọbụlagodi na oke okpomọkụ, yana nguzogide corrosion yiri nchara nickel.N'okpuru ọnọdụ nkịtị, naanị ihe nwere ike igbari PEEK bụ sulfuric acid gbasiri ike.
(4) Ezigbo nguzogide hydrolysis.
Na-eguzogide mmebi kemịkalụ site na mmiri ma ọ bụ nnukwu ikuku mmiri.N'okpuru ọnọdụ okpomọkụ dị elu na nrụgide dị elu, ihe ndị PEEK nwere ike ịrụ ọrụ na-aga n'ihu na gburugburu mmiri ma ka na-ejigide ihe ndị dị mma.Dị ka imikpu n'ime mmiri na-aga n'ihu na 100 ° C maka ụbọchị 200, ike na-anọgide na-agbanweghị agbanwe.
(5) Ezi ọkụ retardant arụmọrụ.
Ọ nwere ike iru ọkwa UL 94 V-0, na-emenyụ onwe ya, ma na-ebunye obere anwụrụ ọkụ na gas na-egbu egbu n'okpuru ọnọdụ ọkụ.
(6) Ọrụ eletrik dị mma.
PEEK na-edobe akụrụngwa eletrik n'ogologo na oke okpomọkụ.
(7) Ike radieshon siri ike.
PEEK nwere usoro kemịkalụ kwụsiri ike, yana akụkụ PEEK nwere ike ịrụ ọrụ nke ọma n'okpuru oke ọgwụ ionizing radieshon.
(8) Ihe siri ike.
Nkwụsị ike ọgwụgwụ na nrụgide mgbanwe bụ ihe kachasị mma na plastik niile ma tụnyere alloys.
(9) Esemokwu dị mma ma na-eyi nguzogide.
A na-edobe nguzogide iyi dị elu na ọnụ ọgụgụ dị ala nke esemokwu na 250 Celsius.
(10) Ọrụ nhazi dị mma.
Mfe extrusion na injection ịkpụzi, na elu ịkpụzi arụmọrụ.
Oge nzipu: 01-09-22