Ibiranga nimbonerahamwe ya Nitrile Rubber

Ibisobanuro birambuye kubiranga nitrile rubber

Rubber ya Nitrile ni kopolymer ya butadiene na acrylonitrile, kandi ibiyigize byose hamwe na acrylonitrile bigira ingaruka zikomeye kumiterere yubukanishi, imiterere yumuti, hamwe no kurwanya ubushyuhe.Ukurikije ibiranga butadiene na acrylonitrile monomers, butadiene ifite polarite nkeya, mugihe acrylonitrile ifite polarite ikomeye.Kubwibyo, uko ibintu byinshi bya acrylonitrile kumurongo wingenzi wa reberi ya nitrile, niko bigenda byoroha guhuza urunigi nyamukuru.Iyo ubushyuhe buke buri hejuru yubushyuhe bukabije, niko imikorere mibi yo kurwanya ubushyuhe buke;Ku rundi ruhande, acrylonitrile ifite ubushyuhe bwiza kuko mu gihe cyo gushyushya, acrylonitrile muri reberi ya nitrile irashobora kubyara ibintu byangiza alcool kugirango ibuze kwangirika kwa okiside.Kubwibyo, kurwanya ubushyuhe bwa nitrile reberi yiyongera hamwe no kwiyongera kwa acrylonitrile;Hagati aho, bitewe na polarite yibintu bya acrylonitrile, kongera ibirimo bya acrylonitrile birashobora kunoza imbaraga zifatika za reberi ya nitrile.Kubwibyo, ni ngombwa cyane gusuzuma ibirimo acrylonitrile iboshye muri rubber ya nitrile.

Ibiri muri acrylonitrile bifite ingaruka zikomeye kumikorere ya NBR.Ibikoresho bya acrylonitrile muri rusange ya acrylonitrile nitrile reberi iri hagati ya 15% na 50%.Niba ibirimo acrylonitrile byiyongereye kugeza hejuru ya 60%, bizakomera, bisa nimpu, kandi ntibikiri bifite reberi.

1. Kurwanya amavuta no kurwanya ibishishwa: Nitrile reberi ifite amavuta yo kurwanya reberi isanzwe.Rubber ya Nitrile irwanya cyane amavuta ashingiye kuri peteroli, benzene, hamwe nandi mashanyarazi adafite polar kurusha reberi karemano, styrene butadiene reberi, butyl reberi, nibindi byuma bitari polar, ariko kandi birutwa na rubber ya chlorine.Ariko, reberi ya nitrile ifite imbaraga nke zo kurwanya amavuta ya polar hamwe na solide (nka Ethanol), ariko irwanya nabi reberi itari polar.

2. Ibiranga imikorere yumubiri: Nitrile reberi nuburyo butunguranye bwa nitrile copolymers idatobora munsi yuburakari.Kubwibyo, imiterere yumubiri nubukanishi bwa nitrile rubber itunganijwe neza irasa nkiya rubber styrene nitrile, munsi cyane ya reberi karemano.Nyuma yo kongeramo ibyuzuza imbaraga nka karubone yumukara na fenolike, imbaraga zingana za nitrile vulcanized rubber irashobora kugera kurwego rwa reberi karemano, mubisanzwe hafi 24.50mpa.Mugihe polarite yibiri muri NBR yiyongera, ihinduka ryurunigi rwa macromolecular ruragabanuka, imbaraga za atome hagati ya molekile ziriyongera, imigozi ibiri iragabanuka, kandi urunigi rwa macromolecular ntiruhaga, bikavamo urukurikirane rwimikorere ihinduka.Iyo ibirimo ACN biri hagati ya 35% na 40%, ni ingingo yingenzi yo guhinduranya ibintu, guhindagurika, no gukomera kuri 75 ℃.Niba kurwanya amavuta byujuje ibisabwa, ubwoko hamwe na ACN butageze kuri 40% bigomba gukoreshwa bishoboka.Elastique ya reberi ya nitrile ni ntoya kuruta iyo reberi isanzwe na styrene butadiene.Ubworoherane bwa NBR bufitanye isano cyane n'ubushyuhe.Ugereranije na NBR, amahirwe yo kwiyongera no kwiyongera kwa elastique ni menshi.Kubwibyo, nitrile reberi irakwiriye cyane mu gukora imashini zikoresha amavuta menshi.Ibiranga elastique ya nitrile reberi ihinduka hamwe no guhuza acrylonitrile

3. Guhumeka: Nitrile reberi ifite imbaraga zo guhumeka neza kuruta reberi karemano na styrene butadiene, ariko ntabwo ari byiza nka reberi ya polysulfide, isa na rubber.

4. Ubushyuhe buke: reberi ya Nitrile ifite imikorere mibi yubushyuhe buke muri rubber rusange.Imikorere yubushyuhe buke ijyanye nibiri muri acrylonitrile, kandi ubushyuhe bwikirahure bwiyongera hamwe no kwiyongera kwa acrylonitrile.Irashobora kugabanya ubushyuhe bwikirahure cya nitrile reberi no kunoza imikorere yubushyuhe buke.

5. Kurwanya ubushyuhe: reberi ya Nitrile ifite ubushyuhe bwiza kuruta reberi karemano na reberi ya styrene butadiene.Muguhitamo formulaire ikwiye, nitrile reberi irashobora gukoreshwa ubudahwema kuri 120 ℃;Irashobora kwihanganira amavuta ashyushye kuri 150 ℃;Nyuma yo gushiramo amavuta kuri 191 ℃ mumasaha 70, iracyafite ubushobozi bwo kunama.6. Kurwanya Ozone: Rubber ya Nitrile ifite ubushobozi buke bwa ozone kandi muri rusange itezimbere wongeyeho imiti irwanya ozone.Nyamara, ibicuruzwa bihura namavuta mugihe cyo gukoresha bikunda gukuraho ozone irwanya ozone no gutakaza ozone.Ufatanije na PVC, ingaruka ni ngombwa.

7. Kurwanya amazi: reberi ya Nitrile ifite imbaraga zo kurwanya amazi.Iyo hejuru ya acrylonitrile, niko irwanya amazi.

8. Imikorere yo gukwirakwiza amashanyarazi: reberi ya Nitrile ifite imikorere mibi yo gukwirakwiza amashanyarazi kubera polarite yayo.Nibikoresho bya semiconductor reberi kandi ntibigomba gukoreshwa nkibikoresho byo kubika.

9. Kurwanya gusaza: NBR idafite imiti igabanya ubukana ifite ubukene bukabije bwo gusaza, mugihe NBR ifite imiti igabanya ubukana ifite gusaza no kurwanya ubushyuhe kuruta reberi karemano.Nyuma yo gusaza kwa okiside yumuriro, imbaraga zingana za reberi karemano ziragabanuka cyane, ariko kugabanuka kwa rubber nitrile mubyukuri ni bito cyane.

Kurwanya ubushyuhe bwa reberi ya nitrile ni kimwe no kurwanya gusaza.Iyo L0000H ifite imyaka 100 ℃, uburebure bwayo burashobora kurenga 100%.Ibicuruzwa bya Nitrile birashobora gukoreshwa mugihe gito kuri 130 ° C kandi birashobora gukoreshwa mubushyuhe bwinshi nta ogisijeni.Noneho rero, nitrile reberi ifite ubushyuhe bwiza kuruta reberi karemano na styrene butadiene.Ndetse kuruta reberi ya chloroprene.Rubber ya Nitrile ifite ikirere kimwe na ozone irwanya reberi karemano, ariko munsi ya reberi karemano.Kwongeramo polyvinyl chloride muri reberi ya nitrile birashobora kunoza ikirere cyayo no kurwanya ozone.

10. Kurwanya imirasire:

Rubber ya Nitrile irashobora kandi kwangizwa nimirasire ya kirimbuzi, bigatuma kwiyongera gukomera no kugabanuka kuramba.Ariko, ugereranije nizindi reberi yubukorikori, NBR ntabwo yibasiwe nimirase, kandi NBR ifite acrylonitrile ya 33% -38% ifite imbaraga zo kurwanya imirasire.Nyuma yimirasire ya kirimbuzi, imbaraga za NBR zifite acrylonitrile nyinshi zirashobora kwiyongera 140%.Ni ukubera ko NBR ifite acrylonitrile nkeya izagenda yangirika munsi yimirasire, mugihe NBR ifite acrylonitrile nyinshi izagira ingaruka zifatika munsi yimirasire ya kirimbuzi.

Imbonerahamwe yimikorere ya Nitrile Rubber

Ibikoresho bya reberi ikoreshwa cyane