Heat stabilizer ndi imodzi mwazowonjezera zofunika kwambiri pakukonza PVC.PVC kutentha stabilizer amagwiritsidwa ntchito ochepa, koma udindo wake ndi waukulu.Kugwiritsa ntchito kutentha stabilizer mu PVC processing akhoza kuonetsetsa kuti PVC si zophweka kunyozeka ndi okhazikika.Thephula la polyethyleneZomwe zimagwiritsidwa ntchito mu PVC stabilizer zimakwaniritsa bwino mafuta.Mu ndondomeko ya mankhwala processing, ndi yabwino kwa plasticization, kubalalitsidwa ndi kusanganikirana, kupanga maonekedwe ndi bwino otaya mlingo;Ndi kukwaniritsa kutentha conduction ndi bwino popanda adhesion ndi kusunga;Nthawi zambiri, zimatengera njira ya PE sera (mafuta) ndi magawo oyambirira, apakati komanso mochedwa.Pa nthawi yomweyi, kutsekemera kwa stabilizer kudzaganiziridwa, poganizira za mkati ndi kunja kwabwino.

Zowongolera kutentha zomwe zimagwiritsidwa ntchito pokonza PVC zimaphatikizapo zoyambira zamchere zamchere, zotsitsimutsa sopo wazitsulo, zolimbitsa thupi za organotin, zokhazikika padziko lapansi, ma epoxy compounds, etc.
Kutsogolera mchere stabilizer
Mchere wotsogolera ndiwomwe umagwiritsidwa ntchito kwambiri kutentha kwa PVC, ndipo mlingo wake ukhoza kuwerengera theka la PVC kutentha stabilizer.
Ubwino wa lead salt stabilizer: kukhazikika kwamafuta bwino, kukhazikika kwamafuta kwanthawi yayitali, kutchinjiriza bwino kwamagetsi komanso kukana kwanyengo.
Kuipa kwa kutsogolera mchere stabilizer: osauka kubalalitsidwa, mkulu kawopsedwe, koyambirira mitundu, zovuta kupeza mandala mankhwala ndi zowala akuda mankhwala, kusowa lubricity, kuti apange sulfure ndi kudzipatula kuipitsa.
Ma salt stabilizer omwe amagwiritsidwa ntchito kwambiri ndi awa:
Tribasic lead sulfate, formula ya maselo: 3PbO · PbSO4 · H2O, code TLS, ufa woyera, kachulukidwe 6.4g / cm3.Tribasic lead sulfate ndi stabilizer yomwe imagwiritsidwa ntchito kwambiri.Nthawi zambiri amagwiritsidwa ntchito limodzi ndi dibasic lead phosphite.Mafuta ayenera kuwonjezeredwa chifukwa alibe mafuta.Amagwiritsidwa ntchito kwambiri pazinthu za PVC zolimba zowoneka bwino, ndipo mlingo wake nthawi zambiri ndi magawo 2 ~ 7.
Dibasic lead phosphite, formula ya maselo: 2PbO · pbhpo3 · 1 / 2H2O, code DL, ufa woyera, kachulukidwe 6.1g/cm3.Kukhazikika kwa kutentha kwa dibasic lead phosphite ndikotsika pang'ono poyerekeza ndi tribasic lead sulfate, koma kukana kwanyengo kuli bwinoko kuposa tribasic lead sulfate.Dibasic lead phosphite nthawi zambiri amagwiritsidwa ntchito limodzi ndi tribasic lead sulfate, ndipo mlingo wake umakhala pafupifupi theka la tribasic lead sulfate.
Dibasic lead stearate, code yotchedwa DLS, siyofala ngati tribasic lead sulfate ndi dibasic lead phosphite ndipo imakhala ndi lubricity.Nthawi zambiri amagwiritsidwa ntchito limodzi ndi tribasic lead sulfate ndi dibasic lead phosphite mu kuchuluka kwa 0.5 ~ 1.5 phr.
Pofuna kupewa poizoni ufa lead mchere stabilizer kuuluka kutali, kwambiri kuipitsa chilengedwe kupanga ndi kusintha kubalalitsidwa zotsatira za stabilizer, fumbi wopanda gulu kutsogolera mchere kutentha stabilizer wakhala anayamba ndi ntchito kunyumba ndi kunja.Njira yopangira ndi:
Pa kutentha ndi kusanganikirana zinthu, zosiyanasiyana lead mchere stabilizers ndi wothandiza kutentha stabilizers ndi synergistic zotsatira omwazika kwathunthu ndi kusakaniza mafuta mkati ndi kunja kupanga granular kapena flake lead mchere gulu stabilizers.Itha kukwaniritsa zofunikira zaukadaulo wamatenthedwe komanso kudzoza mkati ndi kunja ndikuwonjezera ku utomoni wa PVC malinga ndi kuchuluka kwa magawo (popanda kuwonjezera zowongolera ndi mafuta ena).
Akuti kutsogolera mchere stabilizer ntchito popanga fumbi wopanda kutsogolera mchere gulu stabilizer ali ndi tinthu tating'ono, amene kumawonjezera kudera anachita ndi wa hydrogen kolorayidi.Chifukwa amaphatikizidwa ndi mafuta amkati ndi akunja, amakhala ndi kubalalitsidwa kwakukulu, kumathandizira kwambiri kukhazikika kwamafuta komanso kuchepetsa mlingo.

Zitsulo sopo
Kuchuluka kwa stabilizer yayikulu ndi gawo lachiwiri lalikulu pambuyo pa mchere wotsogolera.Ngakhale kuti kutentha kwake sikokwanira ngati mchere wotsogolera, umakhalanso ndi mafuta.Ndiwopanda poizoni kupatula ma CD ndi Pb, owonekera kupatula Pb ndi Ca, ndipo alibe kuipitsidwa kwa vulcanization.Choncho, amagwiritsidwa ntchito kwambiri mu PVC yofewa, monga yopanda poizoni komanso yowonekera.
Sopo zachitsulo zimatha kukhala zitsulo ( lead, barium, cadmium, zinki, calcium, etc.) mchere wa mafuta acids (lauric acid, stearic acid, naphthenic acid, etc.), pakati pawo stearate amagwiritsidwa ntchito kwambiri.Dongosolo la kukhazikika kwa kutentha ndi: mchere wa zinki > mchere wa cadmium > mchere wotsogolera > mchere wa calcium / mchere wa barium.
Sopo wazitsulo nthawi zambiri sagwiritsidwa ntchito payekha.Nthawi zambiri amagwiritsidwa ntchito pakati pa sopo zachitsulo kapena kuphatikiza ndi mchere wotsogolera ndi malata achilengedwe.
Zinc stearate (znst), yopanda poizoni komanso yowonekera, ndiyosavuta kuyambitsa "kuwotcha kwa zinki", yomwe nthawi zambiri imagwiritsidwa ntchito limodzi ndi sopo wa BA ndi Ca.
Calcium stearate (CAST), yokhala ndi processability yabwino, yopanda kuipitsidwa ndi sulfide komanso kuwonekera, imagwiritsidwa ntchito limodzi ndi sopo wa Zn.
Cadmium stearate (cdst), monga chokhazikika chowonekera bwino, ili ndi kawopsedwe wamkulu ndipo sichilimbana ndi kuipitsidwa kwa sulfide.Nthawi zambiri amagwiritsidwa ntchito limodzi ndi sopo wa BA.
Lead stearate (PBST), yokhala ndi kukhazikika kwamafuta abwino, itha kugwiritsidwanso ntchito ngati mafuta.Zoyipa zake ndizosavuta kugwa, kusawonekera bwino, kuipitsidwa kwapoizoni komanso koopsa kwa sulfide.Nthawi zambiri amagwiritsidwa ntchito limodzi ndi BA ndi CD sopo.
Barium stearate (BST), yopanda poizoni, anti sulfide kuipitsa, yowonekera, yomwe imagwiritsidwa ntchito nthawi zambiri ndi Pb ndi Ca sopo.
Zotsatira zafukufuku ndi machitidwe akuwonetsa kuti sopo wachitsulo kutentha stabilizer nthawi zambiri si yoyenera kugwiritsidwa ntchito yokha, ndipo zotsatira zabwino za synergistic zitha kupezeka pogwiritsa ntchito pawiri.Chifukwa cha kusiyana kwa gawo la anionic, synergist, zosungunulira kapena kubalalitsidwa kwazitsulo zosungunulira sopo wazitsulo, sopo wazitsulo wophatikizika wazitsulo amatha kugawidwa kukhala olimba ndi madzi.
Calcium stearate ndi zinki ndizopanda poizoni zolimbitsa thupi zotsika mtengo, zomwe ndizoyenera kupangira zinthu za PVC pakuyika chakudya.Zotsatira zikuwonetsa kuti sopo wa zinc stabilizer ali ndi mphamvu yayikulu ya ionization, imakhudzidwa ndi allyl chloride pa molekyulu ya PVC, imatha kukhazikika PVC ndikuletsa kutulutsa koyambirira.Komabe, ZnCl2 yopangidwa ndi zomwe zimachitika ndi chothandizira kuchotsa HCl ndipo ikhoza kulimbikitsa kuwonongeka kwa PVC.Sopo wa kashiamu wophatikizidwa sangangoyankhidwa ndi HCl, komanso kuchitapo kanthu ndi ZnCl2 kupanga CaCl2 ndikukonzanso sopo wa zinki.CaCl2 ilibe mphamvu yochotsa HCl, ndipo kuphatikizika kwa ZnCl2 ndi zotumphukira za calcium kumachepetsa mphamvu yake yochotsa HCl.Kuphatikiza kwa epoxy mankhwala ndi calcium ndi nthaka sopo ali ndi synergistic kwenikweni.Nthawi zambiri, choyimitsa kutentha chopanda poizoni chimakhala ndi calcium stearate, zinc stearate ndi epoxy soya oleate.Ndikoyenera kudziwa kuti, β- Kuphatikiza kwa diketone yatsopano yothandizira kutentha kwa stabilizer ndi calcium ndi zinki sopo stabilizer kumalimbikitsa kufalikira kwa kugwiritsa ntchito calcium yopanda poizoni ndi zinc composite stabilizer.Amagwiritsidwa ntchito pazinthu zina zopangira zakudya monga mabotolo a PVC ndi mapepala.
Malingaliro a kampani Qingdao Sainuo Chemical Co.,Ltd.Ndife opanga sera PE, PP sera, OPE sera, EVA sera, PEMA, EBS, Zinc / Calcium Stearate….Zogulitsa zathu zadutsa REACH, ROHS, PAHS, FDA kuyesa.
Sainuo khalani otsimikiza sera, landirani kufunsa kwanu!
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