Kwiminyaka yakutshanje, ukusetyenziswa kweplasitiki yobunjineli obukhethekileyo kudluliselwe ngokuthe ngcembe ukusuka kumkhosi wangaphambili womkhosi kunye neendawo ze-aerospaces ukuya kuthi ga kwi-Aerospaces ukuya kuthi ga kwii-Aguns, ezinjengeemoto, izixhobo zokuphelisa izixhobo, kunye nempahla yokuphela. Phakathi kwazo, iPolyphenylene Sulfiide (PPS) kunye nePolyngunetonetone (i-Peek) ziintlobo ezimbini zeplasitiki ezikhethekileyo ezinophuhliso olukhawulezileyo kunye noluhlu lwesicelo esiqhelekileyo.
I-Peek iphezulu kwi-PPs ngokwamandla, ukuqina, kunye nobushushu obuphezulu bokusebenza. Ngokumalunga nokunganyangeki kobushushu obuphezulu, ukumelana kobushushu be-Peek imalunga nama-50 ° ukuya phezulu kune-PPS. Kwelinye icala, ukuxabisa ixabiso elininzi kunye nokusebenza okungcono kwe-PPS kwenza ukuba isetyenziswe ngokubanzi.
I-PPS inezibonelelo zentsebenzo zilandelayo:
(1) idangatye le-Inrinsic Retisant
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) Ubugqwetha ultra
Kwindawo yokwenza isicelo senqaku lencwadi lencwadi, olu ncedo lubonakala ngakumbi kunelo ye-PC. Isixa esiphezulu sokudibanisa asiyi kuchaphazela kakubi ubuhluzi bezinto ezibonakalayo kwaye zibangele iingxaki, kodwa zikwabangela iingxaki ezifana nefreyini ezidadayo, imfazwe enkulu, kunye neendawo ezimbi zemfazwe. I-Semi-Crystalline PPS, i-fluidsing ephezulu kakhulu ivumela ukuba i-fiber ye-fiber igcwalisa ngokulula i-50%. Kwangelo xesha, kwinkqubo yamaqondo amaqondo aphezulu anyibilikisa kunye nokuphuma, ukubonwa ngezantsi kwe-PPS kunokwenza amanqanaba eglasi kwaye aphelelwe lixesha elide kwinqaku lokugqibela, Ukonyusa ngakumbi imodyuli.
(3) I-Ultra-eca
Inzuzo ikakhulu ye-PA. Ngokwemigaqo yolwelo, i-PPS egcwaliswe kakhulu kunye ne-PPs ziyafana; Kwaye kwiipropathi zoomatshini, izihluzo ze-PA kunye nexabiso elifanayo lokugcwalisa likhulu ngakumbi. Isiphumo kukuba ireyithi ye-PPS yemveliso yePPS ngenxa yokupheliswa kwamanzi iphantsi kakhulu kunezo zeemveliso ze-PA phantsi kweemeko ezifanayo.
(4) Ubungakanani besinyithi owodwa kunye nobunzima obuphezulu obuphezulu
Ngokudityaniswa kwe-gusms ekhethekileyo kunye neqondo lobuncwane elingqinayo, iinxalenye ze-PPs ze-PPS ziya kukhupha isandi esifanayo sokubetha izandla zensimbi, kwaye umphezulu uya kuba sisipili, kunye ne-metric luster.
I-Peks inezi propati ezilandelayo zilandelayo:
(1) Ukumelana nobushushu obuphakamileyo kakhulu.
Ingasetyenziselwa ixesha elide nge-250 ° C, amaqondo obushushu anokufikelela kuma-300 ° C ngephanyazo, kwaye akunzima ukuba aphuke ngexesha nje elifutshane nge-400 ° C.
(2) Iipropathi ezintle zendlela kunye nozinzo.
I-Peek inokugcina amandla aphezulu kubushushu obuphezulu. Amandla okugoba nge-200 ° C anokufikelela kwi-24 MPA, kunye namandla okugoba nge-250 ° Can unokufikelela kwi-12-16 MPA. Ilungele ngokukodwa kwiimveliso eziqhubekayo kwiqondo lobushushu. izinto zomsebenzi. I-Peek inozinzo oluphezulu, uzinzo oluhle kunye nokusebenza okuphantsi kolwandiso olunamagama, olusondeleyo kakhulu kwi-alminum yentsimbi. Ukongeza, i-Peek ikwanokumelana nokunyangwa okuhle, inokumelana noxinzelelo olukhulu ngexesha lenkonzo, kwaye ayiyi kubangelanga ulwandiso olubonakalayo ngenxa yolwandiso lwexesha.
(3) Ukungavisisani kweekhemikhali.
I-Peek iphinda ihlawule kakhulu iichemicals, nkqu nakwiqondo lobushushu eliphakamileyo, ngokuxhaphaza losulelo olufana ne-nickel sensi. Phantsi kweemeko eziqhelekileyo, ekuphela kwento enokuthi inyibilike i-veek is sulfuric acid.
(4) Ukunganyangeki okuhle kwe-hydrolysis.
Ukungaxhathisa ukonakaliswa kweekhemikhali ngamanzi okanye umphunga wamanzi oxinzelelo oluphezulu. Ngaphantsi kwemeko yobushushu obuphezulu kunye noxinzelelo oluphezulu, izinto zemfundo zinokusebenza ngokuqhubekayo kwindawo yamanzi kwaye zisagcina iipropathi ezintle. Njengokuntywiliselwa okuqhubekayo emanzini nge-100 ° C kangangeentsuku ezingama-200, amandla ehlala ephantse angaguqukanga.
(5) Umsebenzi ofanelekileyo wedakisi.
Inokufikelela kwi-UL 94 V-0 avest, kukuzicima, kwaye ikhupha umsi omncinci kunye neegesi eziyityhefu phantsi kweemeko zeflethi.
(6) Ukusebenza okuhle kombane.
I-Peek igcina iipropathi zombane kwi-frequency ebanzi kunye nodidi lobushushu.
(7) Ukunganyangeki kwe-radiation eqinileyo.
I-Peek inesimo esizinzileyo esizinzileyo, kwaye iinxalenye ze-Peks zinokusebenza kakuhle phantsi kweedosi eziphezulu zemitha ye-ioni.
(8) Ubuhle obulungileyo.
Ukuchasana nokuchasana nokutshintsha uxinzelelo yeyona nto ilungileyo kuzo zonke iiplasitiki kwaye uthelekiswa ne-alloys.
(9) Ukungqinelana okugqwesileyo kunye nokunganyangeki.
Ukunganyangeki okuphezulu kunye nokulingana okuphantsi kokuxabana kugcinwa nge-250 ° C.
(10) Ukusebenza okuhle ukuqhubekeka.
Ukukhutshwa ngokulula kunye nenaliti yokubumba, kunye nokubumba okuphezulu.
Ixesha lokuphumla: 01-09-22