1) Kuyamwa ndi kuletsa HCL, kuletsa mphamvu yake yodzipangira yokha. Mtundu uwu wa stabilizer umaphatikizapo mchere wa lead, sopo wachitsulo wa organic acid, mankhwala a organotin, mankhwala a epoxy, mchere wosapangidwa, ndi mchere wachitsulo wa thiol. Amatha kuchitapo kanthu ndi HCL ndikuletsa kuchitapo kanthu kwa PVC kuti ichotse HCL.
2) Kusintha maatomu a chlorine osakhazikika m'mamolekyu a PVC kumaletsa kuchotsedwa kwa HCL. Ngati chokhazikika cha organic tin chikugwirizana ndi maatomu a chlorine osakhazikika a mamolekyu a PVC, organic tin idzalowedwa m'malo ndi maatomu a chlorine osakhazikika m'thupi logwirizana.
3) Kuphatikizika kwa kapangidwe ka polyene kumasokoneza kapangidwe ka dongosolo lalikulu lolumikizana ndipo kumachepetsa utoto. Mchere kapena ma ester osakhuta ali ndi ma bond awiri, omwe amakumana ndi diene addition reaction ndi mamolekyu a PVC mwa kuphatikiza ma bond awiri, motero amasokoneza kapangidwe kawo kolumikizana ndikuletsa kusintha kwa mtundu.
4) Kugwira ma free radicals ndikuletsa ma oxidation reactions, izi zolimbitsa thupi zimatha kukhala ndi zotsatirapo imodzi kapena zingapo.
Chokhazikika bwino cha kutentha kwa PVC chiyenera kukhala chinthu chogwira ntchito zambiri kapena kusakaniza zinthu zomwe zingathandize kukwaniritsa ntchito zotsatirazi: choyamba, kusintha zinthu zogwira ntchito komanso zosakhazikika; Chachiwiri ndi kuyamwa ndi kusokoneza HCL yomwe imatulutsidwa panthawi yokonza PVC, kuchotsa mphamvu ya HCL yowononga yokha; Chachitatu ndi kusokoneza kapena kuletsa ma ayoni achitsulo ndi zinthu zina zovulaza zomwe zimapangitsa kuti zinthu ziwonongeke; Chachinayi, mitundu yosiyanasiyana ya mankhwala imatha kuletsa kukula kwa maunyolo osakhuta ndikuletsa utoto wowonongeka; Chachisanu, imakhala ndi mphamvu yoteteza komanso yoteteza kuwala kwa ultraviolet. Nthawi zambiri, zokhazikika kutentha zimagwiritsidwa ntchito pamodzi kutengera mphamvu zawo, ndipo kugwiritsa ntchito kwawo payekha sikofunikira. Kuphatikiza apo, mitundu yambiri imakhala mu mawonekedwe a ufa, ndipo ina ndi mankhwala oopsa kwambiri. Kuti zitheke kugwiritsa ntchito mosavuta, kupewa poizoni wa fumbi, kuchepetsa zinthu zoopsa kapena kuzisintha ndi zinthu zopanda poizoni, mitundu yambiri ya zokhazikika zokhazikika zapangidwa mdziko muno komanso padziko lonse lapansi m'zaka zaposachedwa. Mwachitsanzo, mndandanda wa zinthu zokhazikika za mtundu wa German Bear, komanso zinthu zokhazikika za organic tin kapena organic tin stabilizers zochokera kumayiko monga United States, Germany, Japan, ndi Netherlands, zonse zili ndi gawo lalikulu pamsika ku China. Chifukwa chake, ndikofunikira kwambiri kuti makampani opanga pulasitiki aku China apititse patsogolo kugwiritsa ntchito zinthu zatsopano zokhazikika zomwe ndi zogwira mtima, zotsika mtengo, zopanda fumbi, zopanda poizoni kapena zotsika poizoni.
Nthawi yotumizira: Disembala-06-2023
