Rubber waa nooc ka mid ah maadada laastikada ah ee polymer-ka, iyada oo la raacayo ficilka xoogga yar ee dibadda, waxay muujin kartaa heer sare oo qallafsan, ka dib marka xoogga dibadda laga saaro, waxay ku noqon kartaa qaabkeedii asalka ahaa.Sababo la xiriira barti sare ee caag ah, waxaa si weyn loo isticmaalaa in barkinta, shockproof, shaabadeynta firfircoon, iwm Codsiga in warshadaha daabacaadda ka mid ah rollers caag kala duwan iyo bustayaal daabacaadda.Horumarka warshadaha caagga ah, alaabooyinka caaggu waxay ka soo baxeen hal isticmaal oo caag dabiici ah ilaa noocyo kala duwan oo caag ah.
1. caag dabiici ah
Caag dabiici ah waxa u badan caag hydrocarbons (polyisoprene), oo ka kooban qadar yar oo borotiin ah, biyo, acids resin, sonkor iyo cusbada aan noolaha ahayn.Caag dabiici ah ayaa leh barti weyn, xoog xoog badan, iska caabin jeexjeex ah oo aad u fiican iyo korantada korantada, caabbinta xirashada wanaagsan iyo caabbinta abaarta, habsocodka wanaagsan, caag dabiici ah ayaa fudud in lagu xidho qalabka kale, iyo waxqabadkiisa guud ayaa ka fiican inta badan caag synthetics.Cilladaha caagga dabiiciga ah waa iska caabbinta liidata ee ogsijiinta iyo ozone, si fudud u gabow iyo xumaan;caabbinta liidata ee saliidda iyo dareerayaasha, caabbinta hoose ee aashitada iyo alkali, iska caabbinta daxalka hoose;iska caabin kulayl yar.Kala duwanaanshaha heerkulka hawlgalka ee caagga dabiiciga ah: qiyaastii -60℃~+80℃.Caag dabiici ah ayaa loo isticmaalaa in lagu sameeyo taayirrada, kabaha caagga ah, tuubooyinka, cajaladaha, lakabyada dahaarka iyo galka fiilooyinka iyo fiilooyinka, iyo alaabada kale ee guud.Caag dabiici ah ayaa si gaar ah ugu habboon soo saarista baabi'iyayaasha gariirrada torsional, matoorada shoogga nuuga, taageereyaasha mishiinnada, canaasiirta birta-joojinta, diaphragms, iyo alaabada la shubay.
2. SBR
SBR waa copolymer of butadiene iyo styrene.Waxqabadka caagga styrene-butadiene wuxuu ku dhow yahay midka dabiiciga ah ee dabiiciga ah, oo hadda waa wax soo saarka ugu weyn ee caag-guud oo ujeedo leh.Astaamaha caagga styrene-butadiene waa in ay xirashada iska caabin ah, caabbinta gabowga iyo caabbinta kulaylku ka badan yihiin caagga dabiiciga ah, iyo qaab-dhismeedku waa ka lebbisan yahay caagga dabiiciga ah.Khasaarooyinka caagga styrene-butadiene waa: dabacsanaan hooseeya, caabbinta dabacsanaan liidata iyo iska caabbinta ilmada;wax qabad liidata, gaar ahaan is-ku-dhejinta liidata iyo xoogga caag cagaaran oo hooseeya.Heerkulka kala duwan ee caagga styrene-butadiene: ilaa -50℃~+100℃.Styrene butadiene caagga inta badan waxaa loo isticmaalaa in lagu beddelo caag dabiici ah si loo sameeyo taayirrada, go'yaasha caagga ah, tuubooyinka, kabaha caagga ah iyo alaabta kale ee guud.
3. caag Nitrile ah
Rabadhka Nitrile waa copolymer of butadiene iyo acrylonitrile.Rabadhka Nitrile waxa lagu gartaa caabbinta aadka u fiican ee gaaska iyo saliidaha hydrocarbon aliphatic, ka labaad oo kaliya caag polysulfide, acrylic ester iyo fluorine caag ah, halka nitrile caag ka sarreeya caagadaha kale ee guud.Iska caabbinta kulaylka wanaagsan, cidhiidhiga hawada wanaagsan, xidhashada caabbinta iyo iska caabinta biyaha, iyo ku dheggan xooggan.Dhibaatooyinka caagga nitrile waa iska caabin qabow oo liita iyo iska caabbinta ozone, xoogga hoose iyo barti, caabbinta aashitada oo liita, korantada liidata, iyo caabbinta liidata ee dareerayaasha polar.Kala duwanaanshaha heerkulka caagga nitrile: qiyaastii -30℃~+100℃.Rabadhka Nitrile waxaa inta badan loo isticmaalaa in lagu soo saaro alaabooyin kala duwan oo saliida adkaysi u leh, sida tuubooyinka, alaabta wax lagu xidho, rollers-ka, iwm.
4. caag nitrile hydrogenated
Caag Nitrile Hydrogenated ah waa copolymer of butadiene iyo acrylonitrile.Rabadhka nitrile hydrogenated waxaa lagu helaa iyada oo si buuxda ama qayb ahaan hydrogenating bond bonds ee butadiene ee NBR.Caag nitrile hydrogenated ah waxaa lagu gartaa xoog farsamo sare iyo iska caabin abrasion, caabbinta kulaylku waa ka fiican yahay NBR marka la crosslinked leh peroxide, iyo guryaha kale waxay la mid yihiin caag nitrile ah.Khasaarada caagga nitrile ee hydrogenated waa qiimaheeda sare.Kala duwanaanshaha heerkulka ee caag nitrile hydrogenated: qiyaastii -30℃~+150℃.Rabadhka nitrile hydrogenated waxa inta badan loo isticmaalaa alaabada xidhidhiyaha saliida iyo heerkulka u adkaysta.
5. caag Ethylene propylene
Rabadhka Ethylene propylene waa copolymer ethylene iyo propylene, waxaana guud ahaan loo qaybiyaa laba yuan ethylene propylene rober iyo saddex yuan ethylene propylene.Rabadhka Ethylene-propylene waxa lagu gartaa caabbinta ozone heer sare ah, iska caabin ultraviolet ah, iska caabin cimilo iyo caabbinta gabowga, oo kaalinta koowaad ka gashay caagag ujeedo guud ah.Rabadhka Ethylene-propylene wuxuu leeyahay dahaar koronto oo wanaagsan, iska caabin kiimikaad, dabacsanaanta saamaynta, caabbinta aashitada iyo alkali, cufnaanta gaarka ah oo hooseeya, waxaana loo isticmaali karaa buuxinta sare.Cadaadiska kulaylku wuxuu gaari karaa 150°C, waxayna u adkeysaneysaa dareerayaasha polar-ketones, esters, iwm., laakiin caagga ethylene propylene ma aha mid u adkaysata hydrocarbons aliphatic iyo hydrocarbons caraf udgoon.Qalabka kale ee jirka iyo farsamada ee caagga ethylene propylene ayaa wax yar ka hooseeya caagga dabiiciga ah oo ka sarreeya caagga butadiene ee styrene.Khasaarada caagga ethylene-propylene ayaa ah in uu leeyahay isku dhejinta liidata iyo isku dhejinta labada dhinac, mana fududa in la isku xidho.Kala duwanaanshaha heerkulka ee caagga ethylene propylene: qiyaastii -50℃~+150℃.Caag Ethylene-propylene waxaa inta badan loo isticmaalaa sida dahaarka qalabka kiimikaad, silig iyo fiilada xiirtay, tuubada uumiga, suunka qaada kulaylka u adkaysta, alaabta caag baabuurta iyo alaabta kale ee warshadaha.
6. caag silikoon ah
Caag silikoon ah waa caag gaar ah oo leh silikoon iyo atamka oksijiinta ee silsiladda ugu weyn.Curiyaha silikoonka ayaa door weyn ka ciyaara caag silikoon ah.Astaamaha ugu muhiimsan ee caag silikoon waa labadaba iska caabin heerkul sare ah (ilaa 300°C) iyo iska caabbinta heerkulka hooseeya (ugu hooseeya -100°C).Hadda waa caag u adkaysta heerkulka sare ee ugu fiican;Isla mar ahaantaana, caag silikoon ah ayaa leh dahaar koronto oo heer sare ah waxayna ku xasilan tahay oksaydhka kulaylka iyo ozone.Aad bay u adkaysi u leedahay oo kimikal ahaan ma dhaqaaqdo.Khasaarooyinka caagga silikoonku waa xoog farsamo oo hooseeya, caabbinta saliidda oo liidata, caabbinta dareeraha, caabbinta aashitada iyo alkali, ay adagtahay in la vulcanize, iyo ka qaalisan.Caag silikoon ah oo shaqaynaysa: -60℃~+200℃.Caag silikoon ah ayaa inta badan loo isticmaalaa in lagu sameeyo alaab heerkulkiisu sarreeyo iyo mid hooseeya (tubooyinka, shaabadda, iwm.), iyo silig heerkul sare u adkaysta iyo dahaarka fiilada.Sababtoo ah maaha mid sun ah oo aan dhadhamin, caag silikoon ah ayaa sidoo kale loo isticmaalaa cuntada iyo warshadaha caafimaadka.
7. caag poliurethane
Caag polyurethane ah ayaa leh elastomer ka samaysan polymerization of polyester (ama polyeter) iyo xeryahooda diisocyanate.Caag poliurethane waxaa lagu gartaa caabbinta abrasion wanaagsan, taas oo ah midka ugu fiican dhammaan noocyada caag ah;caag poliurethane waxa uu leeyahay xoog sare, barti wanaagsan iyo caabbinta saliid aad u fiican.Caag polyurethane sidoo kale aad ayuu ugu fiican yahay iska caabinta ozone, caabbinta gabowga, iyo cidhiidhiga hawada.Dhibaatooyinka caagga poliurethane waa caabbinta heerkulka liidata, biyaha liidata iyo caabbinta alkali, iyo caabbinta liidata ee hydrocarbons, hydrocarbons koloriin ah, iyo dareerayaasha sida ketones, esters, iyo alkolada.Kala duwanaanta heerkulka isticmaalka ee caagga poliurethane: qiyaastii -30℃~+80℃.Caag polyurethane waxaa loo isticmaalaa in lagu sameeyo taayir ku dhow qaybaha, gaasaska, alaabada aan shoogga lahayn, rollers-ka caagga ah, iyo xirashada, xoogga sare iyo alaabta caagga ah ee saliidda.
Waqtiga boostada: Jul-07-2021