Mu myaka yashize, Gushyira mu bikorwa Plastics idasanzwe yubuhanga bwakomeje buhoro buhoro mu mirima ya gisirikare yabanjirije iki gisirikare ndetse na Aerospace kugeza mu mirima myinshi kandi myinshi, nk'imodoka, ibikoresho byo gukora, n'ibikoresho byo hejuru. Muri bo, Polyphenylene sulfide (PPS) na Polyethereetherketoto
Peek ni uruta PPS ukurikije imbaraga, gukomera, nubushyuhe ntarengwa bwakazi. Kubijyanye no kurwanya ubushyuhe bwo hejuru, kurwanya ubushyuhe bwa peek ni 50 ° C hejuru kurenza iya PPS. Kurundi ruhande, inyungu zigaragara ugereranije nuburyo bwo gutunganya neza pps bikoreshwa cyane.
PPS ifite inyungu zikurikira:
(1) urumuri rwinshi
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) Ultra-Amazi menshi
Mu rwego rwo gusaba kwitwara ikaye, iyi nyungu iragaragara cyane kurenza PC. Umubare wo kwiyongera uzagira ingaruka gusa kumanuka yibikoresho kandi bigatera ibibazo byo gutunganya, ahubwo binatera ibibazo nka fibre zireremba, hakomeye, hamwe nubutaka bubi. Kuri Semi-Crystalline PPS, amazi yacyo menshi yemerera fibre fibre yuzuza byoroshye 50%. Mugihe kimwe, mugihe cyubushyuhe bwo hejuru gishonga kuvanga no gukandagira, vino yo hepfo ya PPS yagereranije na PC irashobora gutuma ikiruhuko cyikirahure kibamo inshinge zanyuma ingingo ya nyuma yabumbabumbwe Byongeye kandi byongera modulus.
(3) Ultra-Amazi make
Iyi nyungu ahanini kuri PA. Kubijyanye n'amazi, yuzuye cyane pa na PPS biragereranywa; Kandi kubikoresho bya mashini, pa comporite hamwe nubusabane bwuzuye burarushaho kwiga. Igisubizo nuko igipimo cy'ibicuruzwa cya PPS kubera uburyo bwo kwinjiza amazi ari munsi yicya PA ibicuruzwa bimwe.
(4) Icyuma kidasanzwe kandi kiri hejuru
Binyuze muburyo budasanzwe bwibikorwa bidasanzwe nubushyuhe bwumvikana, ibikoresho bya PPS bizanasohora kandi gukubita icyuma munsi yamaboko yabantu, kandi ubuso buzaba bworoshye nk'indorerwamo, hamwe na metallic.
Peek ifite imitungo ikurikira:
(1) Kurwanya ubushyuhe bwinshi.
Irashobora gukoreshwa igihe kirekire kuri 250 ° C, ubushyuhe bushobora kugera kuri 300 ° C mukanya, kandi ntiribora mugihe gito kuri 400 ° C.
.
Peek irashobora gukomeza imbaraga nyinshi ku bushyuhe bwinshi. Imbaraga zo kunama kuri 200 ° C zirashobora kugera kuri 24 MPA, n'imbaraga zo kunama no gutera imbaraga kuri 250 ° C zirashobora kugera kuri 12-13 MPA. Birakwiriye cyane cyane gukora ibicuruzwa bihoraho ku bushyuhe bwo hejuru. Ibikorwa. Peek afite ubushishozi bukomeye, umutekano mwiza wibipimo hamwe no guhuza bike byagutse umurongo, bikaba ari hafi cyane yo kwicyuma. Byongeye kandi, peek nanone ifite ubuhanga bwiza bwo kurwanya ibintu, birashobora kwihanganira imihangayiko ikomeye mugihe cya serivisi, kandi ntizatera imbaraga zikomeye kubera igihe cyo kwagura igihe.
(3) Kurwanya imiti myiza.
Peek arwanya imiti myinshi, ndetse no ku bushyuhe bwinshi, hamwe no kurwanya ruswa bisa na Nikel Icyuma. Mubihe bisanzwe, ikintu cyonyine gishobora gusenya peek kirimo aside sulfurike.
(4) Kurwanya Hydrolysis.
Kurwanya kwangirika kw'imiti n'amazi cyangwa imyuka y'umuyaga mwinshi. Muburyo bwubushyuhe bwinshi hamwe nigitutu kinini, ibice byihutirwa birashobora gukora ubudahwema mumazi kandi biracyakomeza imitungo myiza. Nka kwibiza mumazi kuri 100 ° C Ku minsi 200, imbaraga zidahinduka hafi.
(5) Imikorere myiza ya Flame.
Irashobora kugera muri UL 94 v-0 igipimo, ni kwizihiza, kandi zisohora imyuka mike nuburozi munsi yumuriro.
(6) Imikorere myiza y'amashanyarazi.
Peek abungabunga imitungo y'amashanyarazi hejuru inshuro nyinshi nubushyuhe.
(7) kurwanya imirasire ikomeye.
Peek afite imiterere yimiti ihamye cyane, hamwe nibice byamateka birashobora gukora neza munsi ya dosiye yo hejuru yimirase ya ionizing.
(8) Birakomeye.
Umunaniro wo kurwanya guhindura imihangayiko nibyiza bya plastike byose kandi biragereranywa na alloys.
(9) Gutera ubwoba neza no kwambara.
Kwambara cyane no kugenzura bike bikomezwa kuri 250 ° C.
(10) Imikorere myiza yo gutunganya.
Kugenda byoroshye no gutera inshinge, no kubumba byinshi.
Igihe cyo kohereza: 01-09-22