SEBS (Styrene Ethylene Butylene Styrene)
STYRENE-ETHYLENE-BUTYLENE-STYRENE THERMOPLASTIC ELASTOMER (SEBS)
HANTIDA IYO CODSIGA
Styrene-etylene-butylene-styrene, sidoo kale loo yaqaan SEBS, waa elastomer thermoplastic muhiim ah (TPE) kaas oo u dhaqma sidii caag oo kale iyada oo aan la marin vulcanization.SEBS waa mid xoog badan oo dabacsan, leh kulayl aad u fiican iyo iska caabin UV oo ay fududahay in la farsameeyo.Waxaa soo saara qayb ka mid ah hydrogenating-ka xulashada ee styrene-butadiene-styrene copolymer (SBS) taas oo wanaajisa xasiloonida kulaylka, cimilada iyo caabbinta saliidda, waxayna ka dhigaysaa SEBS uumi nadiif ah. .
Elastomers SEBS waxaa inta badan lagu daraa polymers kale si kor loogu qaado waxqabadkooda.Waxa loo isticmaalaa sidii wax-ka-beddelayaasha saamaynta ku leh heerkulbeegyada injineernimada iyo sidii kuwo qallafsan / adkaynaya polypropylene cad (PP).Badiyaa saliid iyo wax-buuxiyeyaasha ayaa lagu daraa qiimo jaban iyo / ama si wax looga beddelo guryaha.Codsiyada muhiimka ah waxaa ka mid ah xabagta xasaasiga ah ee cadaadiska kulul, alaabta ay ku ciyaarto, kabaha kabaha, iyo alaabada bitumen ee TPE-ga wax laga beddelay ee loogu talagalay codsiyada saqafka waddooyinka iyo saqafka.
Styrenics, ama styrenic block copolymers ayaa ah kuwa ugu badan ee loo isticmaalo dhammaan TPE-yada.Waxay si fiican isugu daraan agabka kale iyo sidoo kale buuxinta iyo wax ka beddelayaasha.SEBS (styrene-ethylene/butylene-styrene) waxaa lagu gartaa qaybo adag oo jilicsan oo ku dhex jira xargaha polymer-ka ee gaarka ah.Baloogyada dhamaadka waa styrene crystalline halka baloogyada dhexe ay yihiin blocks ethylene-butylene jilicsan.Heerkulka sare ee alaabtani way jilicsanaan oo noqdaan dareere.Marka la qaboojiyo, xargaha ayaa ku biira styrene-dhamaadka-blocks ee samaynta isku-xidhka jireed oo bixiya caag la mid ah dabacsanaanta.Caddaynta iyo oggolaanshaha FDA ayaa SEBS ka dhigaya ikhtiyaar aad u fiican oo loogu talagalay codsiyada dhamaadka-sare.
SEBS waxay hagaajin kartaa waxqabadka cadaadiska-xasaasiga ah iyo codsiyada kale ee dhejiska ah.Qaar ka mid ah codsiyada aadka loo isticmaalo waxaa ka mid ah cajalado kala duwan, calaamado, balaastiirro, xabag dhisme, dhaymo caafimaad, dahaar, dahaar iyo rinji calaamadeeya waddooyinka.
SEBS waa la isku dari karaa si loo soo saaro walxo hagaajinaya xajinta, dareenka, muuqaalka iyo ku habboonaanta codsiyada kala duwan.Isboortiga iyo madadaalada, alaabta lagu ciyaaro, nadaafadda, baakadaha, baabuurta, iyo alaabada farsamada ee la qaabeeyey ama la soo saaray ayaa ah tusaalayaal caan ah.
SEBS waxaa loo isticmaali karaa iyadoo lagu darayo buuxinyaal kala duwan.Compounders ayaa ku dari doona buuxinyaashan haddii nuugista saliida la xoojiyey, dhimista qiimaha, dareenka dusha sare, ama xasilin dheeraad ah ayaa looga baahan yahay SEBS saafi ah.
Malaha buuxinta ugu badan ee SEBS waa saliid.Saliidahan waxaa la dooran doonaa iyadoo ku xiran shuruudaha codsiga gaarka ah.Ku darida saliida caraf udgoon waxay jilcisaa xannibaadaha PS iyadoo balaastigis lagu samaynayo taasoo hoos u dhigaysa adkaanta iyo sifooyinka jidhka.Saliidu waxay ka dhigaan alaabada jilicsan waxayna sidoo kale u dhaqmaan sidii qalab qalabaysan.Saliidaha paraffinic ayaa la door bidaa sababtoo ah waxay aad ugu habboon yihiin block EB.Saliidaha udgoonka ah ayaa guud ahaan laga fogaadaa sababtoo ah waxay soo galaan oo ay balaajiyaan xayndaabyada polystyrene.
SEBS waxay wanaajin kartaa codsiyada styrene sare, filimada, bacaha, filimada fidsan iyo baakadaha la tuuri karo.Waxay hagaajin karaan waxqabadka polyolefins si loogu isticmaalo heerkulka aadka u daran, waxay wanaajiyaan caddaynta iyo iska caabinta xoqan, waxayna kor u qaadaan barti.
Guryaha ugu muhiimsan ee Fasalo kasta oo ah Alaabooyinka Taxanaha SEBS (Qiimaha caadiga ah)
| Darajo | Qaab dhismeedka | Saamiga xannibaadda | 300% Xoog Fidinta MPa | Xoojinta Xoojinta MPa | Elonga tion % | Dejinta Joogtada % | Hardness Shore A | Xalka Toluene Viscosity at 25 ℃ iyo 25%,mpa.s |
| YH-501/501T | toosan | 30/70 | 5 | 20.0 | 490 | 24 | 76 | 600 |
| YH-502/502T | toosan | 30/70 | 4 | 27.0 | 540 | 16 | 73 | 180 |
| YH-503/503T | toosan | 33/67 | 6 | 25.0 | 480 | 16 | 74 | 2,300 |
| YH-504/504T | toosan | 31/69 | 5 | 26.0 | 480 | 12 | 74 | |
| YH-561/561T | Isku dhafan | 33/67 | 6.5 | 26.5 | 490 | 20 | 80 | 1,200 |
| YH-602/602T | Xiddiga u qaabaysan | 35/65 | 6.5 | 27.0 | 500 | 36 | 81 | 250 |
| YH-688 | Xiddiga u qaabaysan | 13/87 | 1.4 | 10.0 | 800 | 4 | 45 | |
| YH-604/604T | Xiddiga u qaabaysan | 33/67 | 5.8 | 30.0 | 530 | 20 | 78 | 2,200 |
Fiiro gaar ah: Viscosity xalka toluene ee YH-501/501T waa 20%, iyo kuwa kale waa 10%.
"T" macnaheedu waa biyo macaan.