Atụmatụ na tebụl arụmọrụ nke Nitrile Rubber

Nkọwa zuru ezu nke njirimara nke nitrile roba

Nitrile rọba bụ copolymer nke butadiene na acrylonitrile, yana ọdịnaya acrylonitrile jikọtara ọnụ na-enwe mmetụta dị ukwuu na ihe eji arụ ọrụ ya, ihe nrapado, na nguzogide okpomọkụ.N'ihe gbasara njirimara butadiene na acrylonitrile monomers, butadiene nwere polarity na-esighị ike, ebe acrylonitrile nwere polarity siri ike karị.Ya mere, ọdịnaya acrylonitrile na-eme ka ọ bụrụ isi ihe nke nitrile roba, na-eme ka mgbanwe nke isi ihe dị njọ.Nke dị elu nke obere okpomọkụ brittleness okpomọkụ, na-akawanye njọ na obere okpomọkụ na-eguzogide arụmọrụ;N'aka nke ọzọ, acrylonitrile nwere ezigbo nguzogide okpomọkụ n'ihi na n'oge usoro ikpo ọkụ, acrylonitrile na roba nitrile nwere ike ịmepụta ihe ndị na-aṅụ mmanya na-aba n'anya iji gbochie mmebi oxidative thermal.Ya mere, nguzogide okpomọkụ nke nitrile roba na-abawanye na mmụba nke ọdịnaya acrylonitrile;Ka ọ dị ugbu a, n'ihi polarity factor nke acrylonitrile, ịba ụba ọdịnaya nke acrylonitrile nwere ike imeziwanye ike nrapado nke nitrile roba.Ya mere, ọ dị ezigbo mkpa iji nwalee ọdịnaya nke bound acrylonitrile na nitrile roba.

Ọdịnaya nke acrylonitrile nwere mmetụta dị ukwuu na arụmọrụ nke NBR.Ọdịnaya acrylonitrile nke izugbe acrylonitrile nitrile roba dị n'etiti 15% na 50%.Ọ bụrụ na ọdịnaya acrylonitrile na-abawanye karịa 60%, ọ ga-esi ike, dị ka akpụkpọ anụ, na enweghịzi ihe onwunwe roba.

1. Nguzogide mmanụ na ihe mgbaze: Nitrile roba nwere nguzogide mmanụ na roba nkịtị.Nitrile rọba na-eguzogide mmanụ mmanụ, benzene, na ihe ndị ọzọ na-adịghị na polar karịa rọba eke, styrene butadiene roba, butyl rubber, na roba ndị ọzọ na-abụghị polar, mana ọ dịkwa mma karịa roba chlorinated polar.Otú ọ dị, rọba nitrile adịghị eguzogide mmanụ pola na ihe mgbaze (dị ka ethanol), ma ọ dịghị mma iguzogide rọba na-abụghị polar.

2. Njirimara arụmọrụ anụ ahụ: Nitrile roba bụ usoro enweghị usoro nke copolymer nitrile nke na-adịghị kristal n'okpuru esemokwu.Ya mere, ihe arụrụ arụ na arụrụ arụ nke rọba dị ọcha nitrile rọba vulcanized dị ka nke rọba styrene nitrile, dị nnọọ ala karịa rọba eke.Mgbe ịgbakwunye ihe nrụnye ume dị ka carbon ojii na resin phenolic, ike ike nke rọba nitrile vulcanized nwere ike iru ọkwa roba eke, na-adịkarị gburugburu 24.50mpa.Ka ọdịnaya polarity nke NBR na-abawanye, mgbanwe nke yinye macromolecular na-ebelata, ike atomiki n'etiti ụmụ irighiri ihe na-abawanye, agbụ abụọ na-ebelata, na agbụ macromolecular adịghị agwụ agwụ, na-ebute mgbanwe mgbanwe mgbanwe.Mgbe ọdịnaya ACN dị n'etiti 35% na 40%, ọ bụ isi ihe dị mkpa maka nrụrụ mkpakọ, ngbanwe, na ike na 75 ℃.Ọ bụrụ na nguzogide mmanụ na-emezu ihe achọrọ, a ga-eji ụdị ACN na-erughị 40% mee ihe dịka o kwere mee.Ngbanwe nke rọba nitrile dị obere karịa nke rọba eke na styrene butadiene rọba.Ngbanwe nke NBR nwere njikọ chiri anya na okpomọkụ.E jiri ya tụnyere NBR, ohere nke okpomọkụ na mmụba dị ukwuu.Ya mere, rọba nitrile dabara adaba maka imepụta ihe na-akpata ujo nwere oke mmanu mmanu.Njirimara nke ngbanwe nke rọba nitrile na-agbanwe na njikọ nke acrylonitrile

3. Nku ume: Nitrile rọba nwere ikuku siri ike karịa rọba eke na styrene butadiene rọba, mana ọ dịghị mma dị ka roba polysulfide, nke yiri butyl rubber.

4. Ọrụ okpomọkụ dị ala: Nitrile rubber nwere obere okpomọkụ na-adịghị mma na roba n'ozuzu.Arụ ọrụ dị ala na-ejikọta ya na ọdịnaya nke acrylonitrile, na iko mgbanwe okpomọkụ na-abawanye na mmụba nke ọdịnaya acrylonitrile.Ọ nwere ike ibelata okpomọkụ mgbanwe iko nke rọba nitrile ma melite arụmọrụ ya dị ala.

5. Nguzogide okpomọkụ: Nitrile roba nwere nguzogide okpomọkụ dị mma karịa roba eke na styrene butadiene roba.Site na ịhọrọ usoro kwesịrị ekwesị, ngwaahịa rọba nitrile nwere ike iji na-aga n'ihu na 120 ℃;Nwere ike iguzogide mmanụ ọkụ na 150 ℃;Mgbe ịsachara mmanụ na 191 ℃ maka awa 70, ọ ka nwere ikike ịgbagọ.6. Ozone eguzogide: Nitrile roba nwere ogbenye ozone eguzogide na a na-adịkarị mma site n'ịgbakwụnye ozone eguzogide ọgwụ.Otú ọ dị, ngwaahịa ndị na-abanye na mmanụ mgbe a na-eji ya eme ihe na-adịkarị mfe iwepụ ihe na-eguzogide ozone ma tụfuo nkwụsị ozone ya.Ejikọtara ya na PVC, mmetụta ahụ dị ịrịba ama.

7. Mmiri na-eguzogide: Nitrile roba nwere mma mmiri na-eguzogide.Dị elu ọdịnaya nke acrylonitrile, ka mma mmiri na-eguzogide ya.

8. Ọrụ mkpuchi eletriki: Nitrile rubber nwere arụ ọrụ mkpuchi ọkụ na-adịghị mma n'ihi polarity ya.Ọ bụ nke rubber semiconductor na e kwesịghị iji ya mee ihe dị ka ihe mkpuchi.

9. Nguzogide ịka nká: NBR na-enweghị ndị na-ahụ maka ịka nká na-enwe mmetụta na-adịghị mma nke ịka nká, ebe NBR nwere ihe mgbochi ịka nká nwere mma ịka nká na okpomọkụ na-eguzogide karịa roba eke.Mgbe thermal oxidative ịka nká, ike tensile nke roba eke na-ebelata nke ukwuu, mana mbelata na rọba nitrile dị obere n'ezie.

Nguzogide okpomọkụ nke rọba nitrile bụ otu ihe ahụ na nguzogide ya ịka nká.Mgbe L0000H afọ na 100 ℃, ya elongation ka nwere ike gafere 100%.Enwere ike iji ngwaahịa rọba nitrile maka oge dị mkpirikpi na 130 Celsius C ma nwee ike iji ya mee ihe na okpomọkụ dị elu na-enweghị oxygen.Ya mere, rọba nitrile nwere nguzogide okpomọkụ dị mma karịa rọba eke na styrene butadiene rọba.Ọbụna karịa chloroprene roba.rọba Nitrile nwere otu ihu igwe na nguzogide ozone dị ka rọba eke, mana ọ dị ntakịrị ala karịa rọba eke.Ịtinye polyvinyl chloride na rọba nitrile nwere ike melite nguzogide ihu igwe na nguzogide ozone.

10. Nguzogide radieshon:

Enwere ike mebie roba nitrile n'okpuru radieshon nuklia, na-eduga n'ịbawanye ike na mbelata elongation.Otú ọ dị, e jiri ya tụnyere rubbers sịntetik ndị ọzọ, NBR na-enwechaghị mmetụta site na radieshon, na NBR nwere ọdịnaya acrylonitrile nke 33% -38% nwere ezigbo nguzogide radieshon.Mgbe radieshon nuklia gasịrị, ike tensile nke NBR nwere nnukwu ọdịnaya acrylonitrile nwere ike ịbawanye site na 140%.Nke a bụ n'ihi na NBR nwere obere acrylonitrile ọdịnaya ga-eweda n'okpuru radieshon, mgbe NBR nwere nnukwu acrylonitrile ọdịnaya ga-enweta crosslinking mmeghachi omume n'okpuru nuklia radieshon.

Okpokoro arụmọrụ nke Nitrile Rubber

Njirimara akụrụngwa nke rọba sịntetịt a na-ejikarị eme ihe