Izinzuzo ze-PEEK—–Ukumelana Nokushisa Okuphezulu kanye Nokumelana Nokugqwala

I-PEEK (i-poly-ether-ether-ketone) iyi-polymer ekhethekile equkethe ibhondi ye-ketone eyodwa namabhondi e-ether amabili eketango eliyinhloko.

Ngenxa yobuningi besakhiwo sendandatho ye-benzene, i-PEEK ikhombisa izinto ezinhle kakhulu ezihlanganisa konke, njengokumelana nezinga lokushisa eliphakeme kakhulu, ukumelana nokugqwala, izici ezinhle zemishini, ukumelana nomthelela, ukuzigcoba, ukunqanda ilangabi nokunye.

Namuhla, sikhuluma ngezinzuzo ze-PEEK mayelana nokumelana nokushisa okuphezulu nokumelana nokugqwala.

1.I-PEEK ukumelana nezinga lokushisa eliphakeme kakhulu

Embonini ye-petrochemical, impahla ye-PEEK isetshenziswa kakhulu ngenxa yokumelana kwayo nezinga lokushisa eliphakeme, ngakho-ke yiziphi izinzuzo ze-PEEK uma ziqhathaniswa namanye amapulasitiki onjiniyela akhethekile we-thermoplastic?

Umdwebo 1. Iphuzu lokuncibilika kanye nomdwebo wokushisa wokusetshenziswa kwesikhathi eside wamapulasitiki obunjiniyela be-thermoplastic avame ukusetshenziswa

Kusuka ku-Fig1., singabona ukuthi indawo yokuncibilika kanye nezinga lokushisa lesevisi yesikhathi eside le-PEEK liphakeme kunalawo amanye amapulasitiki obunjiniyela akhethekile we-thermoplastic. Ngakho-ke, izinto ze-PEEK zingabonisa ukumelana nokushisa okuhle kakhulu.

Ukusebenza okuqondile kokumelana nezinga lokushisa eliphezulu kwe-PEEK kungahlolwa ngokugoba okuphezulu kwezinga lokushisa nokucindezelwa kwezinga lokushisa eliphezulu.

Njengoba kuboniswe emfanekisweni olandelayo:

I-Fig.2 PEEK5600G kanye ne-PEEK5600CF30.

Impahla yokugoba izinga lokushisa eliphezulu kanye nejika lokucindezelwa kwezinga lokushisa eliphezulu

Kungabonakala ku-Fig.2 ukuthi, njengawo wonke amapulasitiki, izakhiwo zabo zemishini ziyancipha kancane kancane ngokunyuka kwezinga lokushisa. Nokho, ngenxa yokumelana okuhle kakhulu kwezinga lokushisa kwe-PEEK yayo, isengakwazi ukugcina cishe u-70% wokusebenza kwasekuqaleni ku-100C.

2. I-PEEK ukumelana nokugqwala okukhulu

Ekukhiqizeni kwangempela nokuphila, izinto ze-PEEK nazo zisebenzisa ukumelana nokugqwala, njengama-capillaries e-PEEK wezinsimbi zokuhlaziya, amalunga e-PEEK nokunye.

Tab.1 Amathebula okumelana nokugqwala kwamapulasitiki amaningana wobunjiniyela akhethekile

Kungabonwa ku-Tab.1 ukuthi ukumelana nokugqwala kwe-PPS ngokuyisisekelo kuyafana nalokho kwe-PEEK, kuyilapho ukumelana nokugqwala kwe-PPSU,PEI,PI kubi kakhulu kunalokho kwe-PEEK.

Imikhiqizo ye-PEEK inokumelana namakhemikhali okuhle kakhulu. Emakhemikhalini avamile, i-sulfuric acid egxilile kuphela engakwazi ukuyiqeda noma ukuyibhubhisa, futhi ukumelana kwayo nokugqwala kufana nalokho kwensimbi ye-nickel.