Ungayibona kanjani futhi ukhethe kahle phakathi kwe-PA6 eguquliwe kanye ne-PA66 (Ingxenye 1)?

Ungayibona kanjani futhi ukhethe kahle phakathi kwe-PA6 eguquliwe kanye ne-PA66 (Ingxenye 1)?

Ngokukhula kokuvuthwa kobuchwepheshe be-R&D obuguquliwe be-nylon, ububanzi bokusetshenziswa kwe-PA6 ne-PA66 bukhule kancane kancane. Abakhiqizi abaningi bemikhiqizo yepulasitiki noma abasebenzisi bemikhiqizo yepulasitiki ye-nylon abacaci ngomehluko phakathi kwe-PA6 ne-PA66. Ngaphezu kwalokho, njengoba kungekho mehluko obonakalayo obonakalayo phakathi kwe-PA6 ne-PA66, lokhu kuholele ekudidekeni okukhulu. I-PA6 ne-PA66 zingahlukaniswa kanjani, futhi kufanele zikhethwe kanjani?

Okokuqala, Amathiphu Okuhlonza i-PA6 ne-PA66:
Uma ishisiwe, i-PA6 kanye ne-PA66 zikhipha iphunga elifana neloboya noma izinzipho ezishisiwe. I-PA6 ikhiqiza ilangabi eliphuzi, kuyilapho i-PA66 ishisa ngelangabi eliluhlaza okwesibhakabhaka. I-PA6 inokuqina okungcono, ishibhile kune-PA66, futhi inezinga lokuncibilika eliphansi (225°C). I-PA66 inikeza amandla aphezulu, ukumelana nokuguguleka okungcono, kanye nezinga lokuncibilika eliphakeme (255°C).

Okwesibili, Umehluko Ezimpahleni Ezibonakalayo:

• I-PA66:Iphuzu lokuncibilika: 260–265°C; izinga lokushisa lokushintsha kwengilazi (isimo esomile): 50°C; ukuminyana: 1.13–1.16 g/cm³.
• I-PA6:Ama-pellet e-polymer acwebezelayo acwebezelayo noma anombala okhanyayo; iphuzu lokuncibilika: 220°C; izinga lokushisa lokubola: ngaphezu kuka-310°C; ukuminyana okuhlobene: 1.14; ukumuncwa kwamanzi (amahora angu-24 emanzini ku-23°C): 1.8%. Inokumelana okuhle kakhulu nokuguguleka nokuzigcoba, amandla aphezulu omshini, ukumelana okuhle nokushisa kanye nezakhiwo zokuvikela ugesi, ukusebenza okuhle kokushisa okuphansi, izakhiwo zokuzicisha, kanye nokumelana namakhemikhali—ikakhulukazi ukumelana nowoyela.

Uma kuqhathaniswa ne-PA66, i-PA6 kulula ukuyicubungula nokuyibumba, inikeza ukukhanya okungcono kobuso emikhiqizweni eqediwe, futhi inobubanzi bokushisa obusebenziseka kabanzi. Kodwa-ke, inokumuncwa kwamanzi okuphezulu kanye nokuqina okungekuhle kobukhulu. Ayiqinile kangako, inephuzu eliphansi lokuncibilika, futhi ingasetshenziswa isikhathi eside ezindaweni ezinzima. Igcina ukumelana okuhle kokucindezeleka ebangeni elibanzi lokushisa, kanye nokushisa okuqhubekayo okungu-105°C.

Okwesithathu, Unganquma Kanjani Ukuthi Uzosebenzisa i-PA66 noma i-PA6?
Ukuqhathaniswa kokusebenza phakathi kwe-PA6 ne-PA66:

• Izakhiwo zemishini: PA66 > PA6
• Ukusebenza kokushisa: PA66 > PA6
• Intengo: PA66 > PA6
• Indawo yokuncibilika: PA66 > PA6
• Ukumuncwa kwamanzi: PA6 > PA66

Okwesine, Umehluko Ebubanzini Besicelo:

• Amapulasitiki obunjiniyela be-PA6zinamandla aphezulu okudonseka, ukumelana okuhle komthelela, ukumelana okuhle kokuguguleka, ukumelana kwamakhemikhali, kanye ne-coefficient ephansi yokungqubuzana. Ngokusebenzisa izinguquko ezifana nokuqinisa ifayibha yengilazi, ukugcwalisa amaminerali, noma izithasiselo ezivimbela ilangabi, ukusebenza kwazo konke kungathuthukiswa kakhulu. Zisetshenziswa kakhulu embonini yezimoto kanye nasemasimini kagesi/kagesi.
• I-PA66inokusebenza okuphezulu kakhulu, okuhlanganisa amandla aphezulu, ukuqina, ukumelana nokushayisana, ukumelana namafutha namakhemikhali, ukumelana nokuguguleka, kanye nokuzigcoba. Ihamba phambili kakhulu ebulukhunini, ukuqina, ukumelana nokushisa, kanye nokumelana nokukhukhuleka. Ngenxa yamandla ayo aphezulu uma kuqhathaniswa ne-PA6, i-PA66 isetshenziswa kakhulu ezisetshenziswa ezimbonini ezifana nokukhiqizwa kwezintambo zamathayi.

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