Distearyl thiodipropionate;Antioxidant DSTDP, ADCHEM DSTDP
DSTDP Poda
DSTDP Pastille
Kemikari zita:Distearyl thiodipropionate
Chemical formula:S(CH2CH2COOC18H37)2
Molecular uremu:683.18
Nhamba yeCAS:693-36-7
Tsanangudzo yezvivakwa: Ichi chigadzirwa ichena crystalline poda kana granules.Isoluble mumvura, soluble mu benzene uye toluene.
Shoko rakafanana
Antioxidant DSTDP,
Irganox PS 802, Cyanox Stdp
3,3-Thiodipropionic acid di-n-octadecyl ester
Distearyl 3,3-thiodipropionate
Antioxidant DSTDP
Distearyl thiodipropionate
Antioxidant-STDP
3,3'-Thiodipropionic acid dioctadecyl ester
Tsanangudzo
Kuonekwa: White crystalline poda / Pastilles
Madota:Max.0.10%
Kunyungudika nzvimbo: 63.5-68.5 ℃
Application
Antioxidant DSTDP yakanaka yekubatsira antioxidant uye inoshandiswa zvakanyanya mu polypropylene, polyethylene, polyvinyl chloride, ABS uye mafuta ekuzora.Iine high-melting uye yakaderera-volatility.
DSTDP inogona zvakare kushandiswa pamwe chete ne phenolic antioxidants uye ultraviolet absorbers kuburitsa synergistic effect.
Kubva pamaonero ekushandiswa kwemaindasitiri, unogona kunongedzera kune anotevera misimboti yekusarudza:
1. Kugadzikana
Munguva yekugadzira, iyo antioxidant inofanirwa kuramba yakagadzikana, isingaite volatilized, isina kusvibiswa (kana isina ruvara), isina kunyungudutswa, isingaite pamwe nemamwe makemikari ekuwedzera, uye isingaite nemamwe makemikari ekuwedzera panguva yekushandiswa kwezvakatipoteredza uye yakakwirira-tembiricha kugadzirisa.Zvimwe zvinhu zviri pamusoro zvinotsinhaniswa uye hazvizoparadze michina yekugadzira, nezvimwe.
2. Kugarisana
Iwo macromolecules epurasitiki mapolymers anowanzo asiri-polar, nepo mamorekuru e antioxidants ane madhigirii akasiyana e polarity, uye maviri acho asina kuenderana.Antioxidant mamorekuru anogarwa pakati pepolymer mamorekuru panguva yekurapa.
3. Kutama
Iyo oxidation maitiro ezvizhinji zvigadzirwa zvinonyanya kuitika mune isina kudzika layer, iyo inoda kuenderera mberi kweiyo antioxidants kubva mukati mechigadzirwa kuenda pamusoro kuti ishande.Nekudaro, kana mwero wekutamisa uchimhanyisa, zviri nyore kunyungudika mukati menharaunda uye kurasika.Kurasikirwa uku hakudzivisiki, asi isu tinogona kutanga neformula dhizaini kuti tideredze kurasikirwa.
4. Processability
Kana mutsauko uripo pakati pekunyunguduka kweiyo antioxidant uye kunyunguduka kwezvinhu zvekugadzirisa zvakakurisa, chiitiko che anti-oxidant drift kana anti-oxidant screw ichaitika, zvichikonzera kusaenzana kwekugovera kwe antioxidant muchigadzirwa.Naizvozvo, kana nzvimbo yekunyungudika yeantioxidant yakadzikira pane tembiricha yekugadzira zvinhu neinopfuura 100 ° C, iyo antioxidant inofanirwa kugadzirwa kuita masterbatch yekumwe kusungwa, yozosanganiswa neresin isati yashandiswa.
5. Chengetedzo
Panofanira kunge paine basa rekugadzira mukugadzira, saka iyo antioxidant inofanirwa kunge isiri-chepfu kana yakaderera-chepfu, isina guruva kana yakaderera-guruva, uye haizove nezvinokuvadza pamuviri wemunhu panguva yekugadziriswa kana kushandiswa, uye pasina kusvibiswa. kunharaunda yakapoteredza.Hapana chakaipa kumhuka nemiti.
Antioxidants ibazi rakakosha repolymer stabilizers.Mukuita kwekugadzirisa zvinhu, kutarisisa kwakanyanya kunofanirwa kubhadharwa kune iyo nguva, mhando uye huwandu hwema antioxidants akawedzerwa kudzivirira kukundikana nekuda kwezvakatipoteredza zvinhu.