i-distearyl thiodipropionate;I-Antioxidant DSTDP, ADCHEM DSTDP

DSTDP Umgubo
DSTDP Pastille

Igama lomchiza:I-Distearyl thiodipropionate

Ifomula yemichiza:S(CH2CH2COOC18H37)2
Ubunzima bemolekyuli:683.18
Inombolo yeCAS:693-36-7

Inkcazo yeepropati: Le mveliso ngumgubo omhlophe wekristale okanye i-granules.Ayinyibiliki emanzini, i-soluble kwi-benzene kunye ne-toluene.

Isithethantonye

I-Antioxidant DSTDP,
Irganox PS 802, Cyanox Stdp
I-3,3-Thiodipropionic acid di-n-octadecyl ester
I-Distearyl 3,3-thiodipropionate
I-Antioxidant DSTDP
I-Distearyl thiodipropionate
I-Antioxidant-STDP
I-3,3'-Thiodipropionic acid dioctadecyl ester

Inkcazo

Imbonakalo:Umgubo omhlophe wekristale/Iipastilles
Uthuthu:Max.0.10%
Indawo yokunyibilikisa: 63.5-68.5 ℃

Isicelo

I-Antioxidant DSTDP iyi-antioxidant encedisayo elungileyo kwaye isetyenziswa kakhulu kwi-polypropylene, i-polyethylene, i-polyvinyl chloride, i-ABS kunye neoli yokuthambisa.Inokunyibilika okuphezulu kunye nokuguquguquka okuphantsi.

I-DSTDP ingasetyenziselwa ngokudibanisa ne-phenolic antioxidants kunye ne-ultraviolet absorbers ukuvelisa umphumo we-synergistic.

Ngokwembono yokusetyenziswa kwemizi-mveliso, ungabhekisa ngokusisiseko kule migaqo mihlanu ilandelayo onokuyikhetha:

1. Uzinzo

Ngethuba lenkqubo yokuvelisa, i-antioxidant kufuneka ihlale izinzile, ingaguquguquki lula, ingatshintshi (okanye ingabi mbala), ingaboli, ingaphenduli kunye nezinye izongezo zekhemikhali, kwaye ingaphenduli kunye nezinye izongezo zemichiza ngexesha lokusetyenziswa kwendawo kunye nokushisa okuphezulu.Ezinye izinto eziphezu komhlaba ziyatshintshwa kwaye aziyi kugqwala izixhobo zokuvelisa, njl.

2. Ukuhambelana

Iimacromolecules zeepolymer zeplastiki ngokuqhelekileyo azikho-polar, ngelixa iimolekyuli ze-antioxidants zinedigri ezahlukeneyo ze-polarity, kwaye ezi zimbini azihambelani kakuhle.Iimolekyuli ze-Antioxidant zihlaliswa phakathi kweemolekyuli zepolymer ngexesha lokunyanga.

3. Ukufuduka

Ukusabela kwe-oxidation yeemveliso ezininzi kwenzeka ikakhulu kumaleko angekho nzulu, efuna ukuhanjiswa okuqhubekayo kwee-antioxidants ukusuka ngaphakathi kwemveliso ukuya kumphezulu ukusebenza.Nangona kunjalo, ukuba izinga lokudluliselwa likhawuleza kakhulu, kulula ukuguquguquka kwimo engqongileyo kwaye ilahleke.Le lahleko ayinakuthintelwa, kodwa sinokuqala ngoyilo lwefomula ukunciphisa ilahleko.

4. Ukuqhubekeka

Ukuba umehluko phakathi kwendawo yokuncibilika kwe-antioxidant kunye noluhlu lokunyibilika kwezinto zokucubungula lukhulu kakhulu, i-phenomenon ye-anti-oxidant drift okanye i-screw anti-oxidant iya kwenzeka, okubangela ukusabalalisa okungafaniyo kwe-antioxidant kwimveliso.Ke ngoko, xa iqondo lokunyibilika le-antioxidant lisezantsi kunobushushu bokulungisa izinto ezingaphezulu kwe-100 °C, i-antioxidant kufuneka yenziwe ibe yi-masterbatch yoxinaniso oluthile, emva koko ixutywe nentlaka phambi kokusetyenziswa.

5. Ukhuseleko

Kufuneka kubekho umsebenzi owenziweyo kwinkqubo yokuvelisa, ngoko ke i-antioxidant kufuneka ingabi netyhefu okanye ingabinayo ityhefu ephantsi, ingabinathuli okanye ibe nothuli oluphantsi, kwaye ayiyi kuba naziphi na iziphumo ezinobungozi emzimbeni womntu ngexesha lokusetyenzwa okanye ukusetyenziswa, kwaye akukho ngcoliseko. kwindawo engqongileyo.Akukho bungozi kwizilwanyana nakwizityalo.

I-Antioxidants lisebe elibalulekileyo le-polymer stabilizers.Kwinkqubo yokulungiswa kwezinto, ingqwalasela engaphezulu kufuneka ihlawulwe kwixesha, uhlobo kunye nesixa se-antioxidants eyongeziweyo ukuphepha ukusilela ngenxa yezinto ezisingqongileyo.