1. Nkọwa nke roba
Okwu ahụ bụ "roba" sitere na asụsụ India cau uchu, nke pụtara "osisi na-akwa ákwá".
Nkọwa dị na ASTM D1566 bụ nke a: rọba bụ ihe nwere ike weghachite nrụrụ ya ngwa ngwa n'okpuru nnukwu nrụrụ ma nwee ike gbanwee ya.The modified roba enweghị ike ịbụ (ma enwere ike) agbaze na-esi ihe mgbaze dị ka benzene, methyl ethyl ketone, ethanol toluene ngwakọta, wdg. The gbanwetụrụ roba gbatịpụrụ ugboro abụọ ogologo mbụ ya na okpomọkụ ụlọ ma debe maka otu nkeji.Mgbe o wepụsịrị ike dị n'èzí, ọ nwere ike ịgbake ruo ihe na-erughị 1.5 ogologo ogologo ya n'ime otu nkeji.Ngbanwe a na-ezo aka na nkọwapụta na-ezo aka na vulcanization.
Enwere ike jikọta yinye molecular nke roba.Mgbe roba na-ejikọta obe na-agbanwe n'okpuru ike mpụga, ọ nwere ikike ịgbake ngwa ngwa, ma nwee ezigbo anụ ahụ na arụ ọrụ na nkwụsi ike nke kemịkal.rọba nwere njikọ dị ntakịrị bụ ihe na-agbanwe agbanwe dị elu.
Rubber bụ ihe eji eme ihe, nke nwere ọtụtụ njirimara ndị a na-ahụkarị nke ụdị ihe a, dị ka njupụta dị ala, ikike dị ala na mmiri, mkpuchi, viscoelasticity na ịka nká gburugburu ebe obibi.Tụkwasị na nke ahụ, rọba ahụ dị nro na nke siri ike.
2. Isi nhazi nke roba
A na-ekewa rọba ka ọ bụrụ rọba eke na roba sịntetik dịka akụrụngwa siri dị.Enwere ike kewaa ya na ngọngọ raw roba, latex, roba mmiri mmiri na rọba ntụ ntụ dịka ọdịdị ya si dị.
Latex bụ colloidal mmiri mgbasa nke roba;Mmiri rọba bụ oligomer nke roba, nke na-abụkarị mmiri mmiri viscous tupu vulcanization;
A na-eji rọba ntụ ntụ na-edozi latex ka ọ bụrụ ntụ ntụ maka nhazi na nhazi.
Thermoplastic rọba mepụtara na 1960 adịghị mkpa kemịkalụ vulcanization, kama na-eji ihe nhazi dị mkpa nke thermoplastic rọba na-etolite.Enwere ike kewaa rọba n'ime ụdị izugbe na ụdị pụrụ iche dịka eji.
3. Iji rọba
Rubber bụ ihe bụ isi akụrụngwa nke ụlọ ọrụ rọba, nke a na-ejikarị emepụta taya,eriri roba, teepu,ihe nkwụsị roba, eriri na ngwaahịa rọba ndị ọzọ.
4. Ngwa nke ngwaahịa vulcanized roba
A na-eji ụlọ ọrụ ụgbọ ala mepụta ngwaahịa vulcanized rọba.Mmepe ngwa ngwa nke ụlọ ọrụ ụgbọ ala na ụlọ ọrụ petrochemical na 1960 emeela ka ọkwa mmepụta nke ụlọ ọrụ rọba dịkwuo mma;Na 1970s, iji gboo mkpa nke oke ọsọ ọsọ, nchekwa, nchekwa ike, mkpochapụ mmetọ na mgbochi mmetọ nke ụgbọ ala, a kwalitere ụdị taya ọhụrụ.Oriri rọba raw na-akpata na-ebute oke oke n'ime njem.
Ọmụmaatụ;Ụgbọ ala Jiefang 4-ton chọrọ ihe karịrị kilogram 200 nke ngwaahịa rọba, ụgbọ ala oche siri ike kwesịrị ịkwado ya karịa kilogram 300 nke ngwaahịa rọba, ụgbọ mmiri 10000 ton chọrọ ihe fọrọ nke nta ka ọ bụrụ tọn 10 ngwaahịa rọba, ụgbọ elu jet chọrọ ihe fọrọ nke nta ka ọ bụrụ. 600 n'arọ nke roba.N'ime ụgbọ mmiri, ala na ikuku, ọ nweghị onye nwere ike ime ma ọ bụrụ na ngwaahịa adịghị mma nke rọba.
Oge nzipu: Jan-03-2023