Kodi halogens ndi chiyani?
Zinthu monga fluorine, chlorine, bromine, ayodini ndi astate ndi halogens ndipo zimawonekera mu gulu lalikulu lachisanu ndi chiwiri mu tebulo la periodic la zinthu.Amapezeka m'magulu ambiri amankhwala, mwachitsanzo mu polyvinylchloride.PVC, monga imadziwika mwachidule, imakhala yolimba kwambiri, chifukwa chake imagwiritsidwa ntchito pazinthu zambiri zaluso, komanso pakutchinjiriza ndi zida za sheath mu zingwe.Chlorine ndi ma halogens ena nthawi zambiri amaphatikizidwa ngati zowonjezera kuti apititse patsogolo chitetezo chamoto.Koma izo zimabwera ndi mtengo.Ma halojeni amawononga thanzi.Pachifukwa ichi, mapulasitiki omwe alibe ma halogen amagwiritsidwa ntchito kwambiri pazingwe.
Kodi chingwe chopanda halogen ndi chiyani?
Monga dzina lawo likusonyezera, zingwe zopanda halogen zimakhala zopanda halogen pamapulasitiki.Mapulasitiki okhala ndi ma halojeni amatha kudziwika ndi zinthu zomwe zili m'maina awo, monga polyvinyl chloride yomwe tatchula kale, mphira wa chloroprene, mphira wa fluoroethylene, rabala ya fluoro polima, ndi zina zambiri.
Ngati mukufuna kapena muyenera kugwiritsa ntchito zingwe zopanda halogen, onetsetsani kuti izi zimakhala ndi mphira wa silikoni, polyurethane, polyethylene, polyamide, polypropylene, thermoplastic elastomers (TPE) kapena rabara ya ethylene propylene diene.Zilibe heavy metal based stabilizers kapena softeners, ndipo zowonjezera zotetezera lawi ndi zotetezedwa ku chilengedwe.
Kodi zingwe zopanda halogen zimasankhidwa bwanji?
Chingwe chimakhala chopanda halogen ngati palibe ma halogen monga chlorine, fluorine kapena bromine omwe amagwiritsidwa ntchito potchingira chingwe ndi zinthu za sheath.Zingwe zolumikizira zingwe, makina a payipi, zolumikizira kapena zocheperako, mongaTETEZANI HF chubu likucheperacheperakuchokera ku Mingxiu, amathanso kupangidwa ndi mapulasitiki opanda halogen ndipo motero amakhala opanda halogen.Ngati mukufuna zingwe zopanda halogen, mwachitsanzo, chonde dziwani izi:
| Mapulasitiki a halojeni | Mapulasitiki opanda halogen |
| Chlorinephen-mphiraUfaethylene Propylene Fluorpmphira wa olymer PolyvinylChloride | Mpira wa siliconePolyurethane Polyethylene Polyamide Polypropylene Thermoplastic Elastomers |
Chifukwa chiyani zingwe zopanda halogen zili zofunika pachitetezo chamoto?
Ma halojeni amatha kuwononga thanzi.Izi ndizochitika makamaka pamene mapulasitiki a halogenated, makamaka PVC, amawotcha.Moto ukabuka, ma hydrogen halide amatulutsidwa m’pulasitiki.Ma halojeni amaphatikizana ndi madzi, monga madzi ozimitsa omwe amagwiritsidwa ntchito ndi ozimitsa moto kapena madzimadzi ochokera ku mucous nembanemba, kupanga ma acid - chlorine imakhala hydrochloric acid, fluorine ndi hydrofluoric acid yowononga kwambiri.Kuphatikiza apo, chisakanizo cha ma dioxin ndi mankhwala ena oopsa kwambiri amatha kupangidwa.Ngati alowa munjira zodutsa mpweya, amatha kuwononga ndikuyambitsa kukomoka.Ngakhale munthu atapulumuka pamoto, thanzi lawo likhoza kuwonongeka kotheratu.Izi ndizochepa kwambiri pazingwe zopanda halogen.
Pofuna kuteteza moto wophatikizika, zingwe ziyeneranso kukhala ndi chitetezo chamoto komanso kutulutsa utsi wochepa.Kutetezedwa kwa lawi kumachepetsa kuyaka ndi kufalikira kwa lawi ndipo kumathandizira kuzimitsa.Opanga akukumana ndi vuto pano, popeza chlorine ndi bromine ndizomwe zimaletsa moto, ndichifukwa chake nthawi zambiri zimasakanizidwa ndi mapulasitiki a zingwe.Komabe, chifukwa cha ngozi zomwe zatchulidwazi, izi ndi zotsutsana ndipo zimaloledwa pokhapokha ngati palibe anthu omwe ali pachiwopsezo.Zotsatira zake, Mingxiu amagwiritsa ntchito zida zokhala ndi chitetezo chambiri chamoto koma wopanda ma halojeni.
Ubwino wa zingwe zopanda halogen ndi chiyani?
Ngati zingwe zopanda halogen zatenthedwa kwambiri kapena kutenthedwa, zimapanga ma asidi osawononga kwambiri kapena mipweya yomwe imawononga thanzi.Zingwe za XLPE kapena zingwe za data zochokera ku Mingxiu ndizoyenera kugwiritsidwa ntchito mnyumba za anthu, zoyendera kapena nthawi zambiri pomwe moto ukhoza kuvulaza kwambiri anthu kapena nyama kapena kuwononga katundu.Amakhala ndi utsi wochepa kwambiri wa utsi, motero amatulutsa utsi wocheperako ndikupangitsa kuti anthu otsekeredwa azitha kupeza njira zothawira mosavuta.
Zingwe zopanda halogen ndizothandiza makamaka ngati mukufuna kutsimikizira kuti zitha kusungidwa bwino pakayaka moto.Izi zikhoza kukhala zofunikira m'nyumba zomwe makamera owonetsetsa amapereka zithunzi za gwero la moto.Chingwe cha data chothamanga kwambiri chochokera ku Mingxiu chimatumiza zidziwitso pamlingo wonse wotumizira ngakhale patatha maola awiri pamoto.
Nthawi yotumiza: Mar-25-2022