Halaye da tebur wasan kwaikwayon Nitrile Rubber

Cikakken bayani game da halayen nitrile roba

Nitrile rubber shine copolymer na butadiene da acrylonitrile, kuma haɗewar abun cikin acrylonitrile yana da tasiri mai mahimmanci akan kaddarorin injinsa, kayan ɗamara, da juriya na zafi.Dangane da sifofin butadiene da acrylonitrile monomers, butadiene yana da raunin polarity, yayin da acrylonitrile ya fi ƙarfin polarity.Sabili da haka, mafi yawan abun ciki na acrylonitrile akan babban sarkar nitrile roba, mafi muni da sassauci na babban sarkar.Mafi girma da ƙananan zafin jiki brittleness zafin jiki, mafi muni da low-zazzabi juriya yi;A gefe guda, acrylonitrile yana da tsayayyar zafi mai kyau saboda a lokacin aikin dumama, acrylonitrile a cikin roba na nitrile na iya haifar da abubuwa masu narkewar barasa don hana lalatawar thermal oxidative.Sabili da haka, juriya na zafi na roba na nitrile yana ƙaruwa tare da haɓaka abun ciki na acrylonitrile;A halin yanzu, saboda polarity factor na acrylonitrile, ƙara abun ciki na acrylonitrile iya inganta m ƙarfi na nitrile roba.Sabili da haka, yana da matukar muhimmanci a gwada abun ciki na acrylonitrile mai ɗaure a cikin roba na nitrile.

Abubuwan da ke cikin acrylonitrile yana da tasiri mai mahimmanci akan aikin NBR.Abubuwan da ke cikin acrylonitrile na roba na gabaɗaya acrylonitrile nitrile yana tsakanin 15% da 50%.Idan abun ciki na acrylonitrile ya karu zuwa sama da 60%, zai yi tauri, kama da fata, kuma ba ya da kaddarorin roba.

1. Oil juriya da sauran ƙarfi juriya: Nitrile roba yana da juriya mai a cikin talakawa roba.Robar Nitrile ya fi juriya ga man fetur, benzene, da sauran abubuwan da ba na polar ba fiye da roba na halitta, styrene butadiene rubber, butyl rubber, da sauran rubbers marasa iyaka, amma kuma ya fi robar chlorinated polar.Duk da haka, robar nitrile ba shi da ƙarancin juriya ga mai da sauran abubuwan da ake amfani da su (irin su ethanol), amma ƙarancin juriya ga robar mara iyaka.

2. Halayen aikin jiki: Nitrile roba wani tsari ne na bazuwar nitrile copolymers wanda ba ya yin kisa a ƙarƙashin tashin hankali.Don haka, abubuwan da suke da su na zahiri da na injina na roba mai tsaftataccen ruwan nitrile roba iri daya ne da na roba na nitrile na styrene, kasa da na roba na halitta.Bayan ƙara abubuwan ƙarfafawa irin su carbon baki da resin phenolic, ƙarfin tensile na roba vulcanized nitrile zai iya kaiwa matakin roba na halitta, yawanci a kusa da 24.50mpa.Yayin da abun ciki na polarity na NBR ya karu, sassaucin sarkar macromolecular yana raguwa, ƙarfin atomic tsakanin kwayoyin halitta yana ƙaruwa, raguwa biyu, kuma sarkar macromolecular ba ta cika ba, wanda ya haifar da jerin canje-canjen aiki.Lokacin da abun ciki na ACN ya kasance tsakanin 35% da 40%, shine mahimmin mahimmanci don nakasar matsawa, elasticity, da taurin a 75 ℃.Idan juriyar mai ya cika buƙatun, yakamata a yi amfani da iri tare da ACN ƙasa da 40% gwargwadon yiwuwar.Nauyin roba na nitrile ya fi na roba na halitta da na roba butadiene na styrene.Lalacewar NBR yana da alaƙa da yanayin zafi.Idan aka kwatanta da NBR, yuwuwar yawan zafin jiki da haɓakar elasticity ya fi girma.Saboda haka, roba nitrile ya dace sosai don kera masu ɗaukar girgiza tare da juriya mai tsayi.Halaye na elasticity na nitrile roba canza tare da dauri na acrylonitrile

3. Numfasawa: Nitrile robar yana da mafi kyawun iska fiye da roba na halitta da kuma styrene butadiene rubber, amma ba shi da kyau kamar polysulfide rubber, wanda yayi kama da butyl rubber.

4. Low zazzabi yi: Nitrile roba yana da matalauta low-zazzabi yi a general roba.Ayyukan ƙarancin zafin jiki yana da alaƙa da abun ciki na acrylonitrile, kuma yanayin canjin gilashin yana ƙaruwa tare da haɓaka abun ciki na acrylonitrile.Zai iya rage zafin canjin gilashin na roba na nitrile kuma ya inganta yanayin yanayin zafi.

5. Juriyar zafi: Nitrile roba yana da mafi kyawun juriya na zafi fiye da roba na halitta da roba butadiene na styrene.Ta hanyar zabar dabarar da ta dace, ana iya amfani da samfuran roba na nitrile gabaɗaya a 120 ℃;iya jure zafi mai a 150 ℃;Bayan an jika man a 191 ℃ na tsawon awanni 70, har yanzu yana da ikon tanƙwara.6. Ozone juriya: Nitrile roba yana da rashin juriya na ozone kuma ana inganta shi gaba ɗaya ta hanyar ƙara ma'auni mai juriya.Duk da haka, samfuran da ke yin hulɗa da mai a lokacin amfani da su suna da wuyar cirewa mai juriya na ozone da rasa juriya na ozone.Haɗe tare da PVC, tasirin yana da mahimmanci.

7. Ruwan juriya: Nitrile roba yana da mafi kyawun juriya na ruwa.Mafi girman abun ciki na acrylonitrile, mafi kyawun juriya na ruwa.

8. Ayyukan insulation na lantarki: Nitrile rubber yana da mummunan aikin rufewar wutar lantarki saboda polarity.Nasa ne na roba semiconductor kuma bai kamata a yi amfani da shi azaman abin rufe fuska ba.

9. Juriya na tsufa: NBR ba tare da maganin tsufa ba yana da juriya na tsufa sosai, yayin da NBR tare da maganin tsufa yana da mafi kyawun tsufa da juriya na zafi fiye da roba na halitta.Bayan thermal oxidative tsufa, ƙarfin jujjuyawar roba na halitta yana raguwa sosai, amma raguwar roban nitrile a haƙiƙanin ƙanƙanta ne.

Juriyar zafi na roba nitrile iri ɗaya ne da juriyar tsufa.Lokacin da L0000H shekaru a 100 ℃, ta elongation iya har yanzu wuce 100%.Ana iya amfani da samfuran roba na Nitrile na ɗan gajeren lokaci a 130 ° C kuma ana iya amfani dashi a yanayin zafi mai girma ba tare da iskar oxygen ba.Saboda haka, roba nitrile yana da mafi kyawun juriya na zafi fiye da roba na halitta da roba butadiene na styrene.Har ma fiye da chloroprene roba.Nitrile roba yana da yanayi iri ɗaya da juriya na ozone kamar roba na halitta, amma ɗan ƙasa da roba na halitta.Ƙara polyvinyl chloride zuwa roba na nitrile zai iya inganta juriyar yanayinsa da juriya na ozone.

10. Juriyar Radiation:

Robar Nitrile kuma na iya lalacewa a ƙarƙashin radiation na nukiliya, wanda zai haifar da karuwa a cikin taurin da raguwa a tsawo.Koyaya, idan aka kwatanta da sauran rubbers na roba, NBR ba ta da tasiri ta hanyar radiation, kuma NBR tare da abun ciki na acrylonitrile na 33% -38% yana da juriya mai kyau.Bayan radiation na nukiliya, ƙarfin ƙarfin NBR tare da babban abun ciki na acrylonitrile na iya karuwa da 140%.Wannan saboda NBR tare da ƙananan abun ciki na acrylonitrile zai ƙasƙanta a ƙarƙashin radiation, yayin da NBR tare da babban abun ciki na acrylonitrile zai fuskanci halayen haɗin gwiwa a ƙarƙashin radiation na nukiliya.

Teburin Ayyuka na Nitrile Rubber

Kayayyakin kayan aikin roba na roba da aka saba amfani da su