SEBS(Styrene Ethylene Butylene Styrene)
ISTYRENE-ETHYLENE-BUTYLENE-STYRENE THERMOPLASTIC ELASTOMER (SEBS)
IIPROPATI KUNYE NESICELO
I-Styrene-ethylene-butylene-styrene, eyaziwa ngokuba yi-SEBS, i-elastomer ye-thermoplastic ebalulekileyo (i-TPE) eziphatha njenge-rubber ngaphandle kokungena kwi-vulcanization.SEBS yomelele kwaye iguquguqukayo, inokushisa okuphezulu kunye nokuxhathisa kwe-UV kwaye kulula ukuyiqhuba.Iveliswa ngokuyinxenye kunye nokukhethwa kwe-hydrogenating ye-styrene-butadiene-styrene copolymer (SBS) ephucula ukuzinza kwe-thermal, imozulu kunye nokuchasana kweoli, kwaye yenza i-SEBS iqhube i-sterilisable. .
Ii-elastomers ze-SEBS zihlala zidityaniswa nezinye iipholima ukuze ziphucule ukusebenza kwazo.Zisetyenziswa njengeziguquli zempembelelo zobunjineli be-thermoplastics nanjengeziguquli-ziguquguqukayo / ii-tougheners zepolypropylene ecacileyo (PP).Amaxesha amaninzi ioyile kunye nezihluzi zongezwa kwiindleko eziphantsi kunye / okanye ukuguqula ngakumbi iipropathi.Usetyenziso olubalulekileyo lubandakanya izinto ezincamathelayo ezinoxinzelelo olunyibilikayo olushushu, iimveliso zokudlala, iipali zezihlangu, kunye neemveliso zebhitumene ezilungisiweyo ze-TPE zokugalela iindlela kunye nokufakwa kophahla.
I-styrenics, okanye i-styrenic block copolymers zezona zisetyenziswa kakhulu kuzo zonke ii-TPE's.Zidibanisa kakuhle nezinye izinto kunye nezihluzi kunye nezilungisi.I-SEBS (i-styrene-ethylene / i-butylene-styrene) ibonakaliswe yimimandla enzima kunye nethambileyo ngaphakathi kweentambo ze-polymer.Iibhloko zokuphela ziyi-crystalline styrene ngelixa i-mid-blocs zibhloko ezithambileyo ze-ethylene-butylene.Kubushushu obuphezulu ezi zixhobo ziyathamba kwaye zibe lulwelo.Xa ipholile, iintambo zijoyina kwiibhloko ze-styrene ekupheleni zenza ikhonkco elinqamlezayo kunye nokubonelela ngerabha efana ne-elasticity.Ukucaca kunye nokuvunywa kwe-FDA kwenza i-SEBS ibe yinto ebalaseleyo kwizicelo eziphezulu.
I-SEBS inokuphucula ukusebenza kwi-pressure-sensitive kunye nezinye izicelo zokubambelela.Ezinye zezona nkqubo zixhaphakileyo ziquka iindidi zeeteyiphu, iilebhile, iiplates, izinto zokuncamathelisa zokwakha, izinxibo zonyango, izitywini, iileyibhile kunye neepeyinti zophawu lwendlela.
I-SEBS inokudityaniswa ukuvelisa izixhobo eziphucula ukubamba, ukuziva, ukubonakala kunye nokulula kwezicelo ezahlukeneyo.Imidlalo kunye nolonwabo, iithoyi, ucoceko, ukupakishwa, iimoto, kunye nezinto ezibunjiweyo kunye nezandisiweyo zobugcisa zeminye imizekelo eqhelekileyo.
I-SEBS ingasetyenziswa ngokudityaniswa nezihluzi ezahlukeneyo.Ii-Compounders ziya kongeza ezi zihluzi ukuba ukufunxwa kwe-oyile okwandisiweyo, ukuncitshiswa kweendleko, ukuva okuphuculweyo komphezulu, okanye ukuzinza okongeziweyo kuyafuneka ngaphezulu kwe-SEBS esulungekileyo.
Mhlawumbi eyona nto iqhelekileyo yokuzalisa i-SEBS yioli.Ezi oyile ziya kukhethwa ngokuxhomekeke kwiimfuno ezithile zesicelo.Ukongeza ioyile enevumba elimnandi ithambisa iibhloko zePS ngokwenza iplastikhi enciphisa ubulukhuni kunye neempawu zomzimba.Ii-oyile zenza iimveliso zithambe kwaye zikwasebenza njengezinto zokunceda.Ioli yeParafini ikhethwa ngenxa yokuba ihambelana ngakumbi nebhloko yeziko le-EB.Ioyile ezinuka kamnandi ziyaphetshwa ngenxa yokuba zingena ngaphakathi kwaye zifake iplastiki kwimida yepolystyrene.
I-SEBS inokuphucula usetyenziso lwe-styrene ephezulu, iifilimu, iibhegi, ifilimu eyoluliweyo kunye nokupakishwa okulahlwayo.Banokuphucula ukusebenza kwee-polyolefins ukuze zisetyenziswe kumaqondo obushushu agqithisileyo, baphucule ukucaca kunye nokumelana nokukrweleka, kwaye baphucule ukunwebeka.
IiPropati eziPhambili zeBanga ngalinye leeMveliso zeSeBS Series (Ixabiso eliqhelekileyo)
| IBanga | Ulwakhiwo | Block Ratio | 300% Ukolula Amandla eMPa | Ensile Amandla MPa | Elongation % | uSeti olusiGxina % | Unxweme olunzima A | Isisombululo seToluene I-Viscosity kwi-25 ℃ kunye 25%, mpa.s |
| YH-501/501T | Umgca | 30/70 | 5 | 20.0 | 490 | 24 | 76 | 600 |
| YH-502/502T | Umgca | 30/70 | 4 | 27.0 | 540 | 16 | 73 | 180 |
| YH-503/503T | Umgca | 33/67 | 6 | 25.0 | 480 | 16 | 74 | 2,300 |
| YH-504/504T | Umgca | 31/69 | 5 | 26.0 | 480 | 12 | 74 | |
| YH-561/561T | Ixutyiwe | 33/67 | 6.5 | 26.5 | 490 | 20 | 80 | 1,200 |
| YH-602/602T | Imile okwenkwenkwezi | 35/65 | 6.5 | 27.0 | 500 | 36 | 81 | 250 |
| YH-688 | Imile okwenkwenkwezi | 13/87 | 1.4 | 10.0 | 800 | 4 | 45 | |
| YH-604/604T | Imile okwenkwenkwezi | 33/67 | 5.8 | 30.0 | 530 | 20 | 78 | 2,200 |
Qaphela: I-viscosity yesisombululo se-toluene ye-YH-501 / 501T yi-20%, kwaye enye i-10%.
“T” uthetha amanzi anetyuwa.