Kuyaka kwa ma polima ndi njira yovuta kwambiri komanso yovuta yotenthetsera kutentha, yomwe imadziwika ndi kutulutsa utsi kapena lawi loyaka moto. Zoletsa moto ndi gulu la zowonjezera zomwe zimaletsa kuyaka kwa mapulasitiki kapena kuletsa kufalikira kwa lawi. Mphamvu yoletsa moto ya zoletsa moto ndikuletsa kapena kuletsa kuchuluka kwa kusintha kwa thupi kapena mankhwala pa kuyaka kwa zinthu za polima. Makamaka, mphamvu yoletsa moto imawonekera makamaka m'mbali zotsatirazi.
Flame retardant mu polima kuyaka njira ya flame retardant effect:
Flame retardant retardant flame retardant - kutentha mayamwidwe
Udindo wa kutentha mayamwidwe zotsatira ndi kupanga polima zinthu kutentha kukwera kumachitika movutikira.
Mwachitsanzo, borax ili ndi mamolekyu a 10 a madzi a crystalline, monga kutulutsidwa kwa madzi a crystalline kuti atenge 141.8kJ / mol kutentha, kotero kutentha kwa kutentha kotero kuti kutentha kwa zinthuzo kumaletsedwa, zomwe zimapangitsa kuti moto usawonongeke.
Flame retardant retardant flame retardant - kuphimba zotsatira
Zotsatira zake ndikupanga chivundikiro chokhazikika pamatenthedwe apamwamba kapena kuwola kuti apange chinthu chonga chithovu chomwe chimakwirira pamwamba pa zinthu za polymeric. Izi zimapangitsa kuti zikhale zovuta kuti kutentha komwe kumapangidwa ndi kuyaka kulowe mkati mwa zinthuzo komanso kuti mpweya woyaka moto utuluke chifukwa cha kuwonongeka kwa zinthu za polima. Zimakhala ngati chotchinga mpweya kwa zinthu, motero kuletsa kusweka zinthu ndi kukwaniritsa lawi retardant zotsatira.
Flame retardant flame retardant - dilution effect
Zinthuzi zimatha kutulutsa mpweya wochuluka wosayaka moto zikawonongeka ndi kutentha, kotero kuti mpweya woyaka moto wopangidwa ndi zinthu za polima ndi mpweya wa mlengalenga umachepetsedwa ndipo sufika pamtunda woyaka moto.
Flame retardant flame retardant - kusamutsa zotsatira
Zotsatira zake ndikusintha mawonekedwe a kutentha kwa zinthu za polima, motero zimalepheretsa kupanga mpweya woyaka.
Flame retardant retardant flame retardant - inhibition effect
Kutchera zinthu zapakati pa kuyaka, monga HO- ndi H-, kumalepheretsa kuchitapo kanthu kwa ma free radical chain ndikuchepetsa kuchuluka kwa kuyaka mpaka motowo uzimitsidwa.
Flame retardant flame retardant - mphamvu yowonjezera
Zida zina sizikhala ndi mphamvu yobwezeretsa lawi ngati zitagwiritsidwa ntchito zokha kapena zili ndi mphamvu zochepa zoyaka moto, koma zida zosiyanasiyana zitha kugwiritsidwa ntchito kupititsa patsogolo mphamvu yamoto, monga antimony trioxide ndi mankhwala a halogen omwe amagwiritsidwa ntchito palimodzi.
Njira yochepetsera moto mu ndondomeko yoyaka polima:
Flame retardant mechanism - gas phase retardant mechanism
Makina oletsa moto wa Vapor phase retardant amatanthawuza mphamvu yobwezeretsanso lawi la kusokoneza kapena kuchedwetsa kuyaka kwa unyolo mu gawo la gasi. Kuchedwa kwa lawi la Vapor phase makamaka kumakhala ndi:
- Ma free radical inhibitors amapangidwa pamene zinthu zoletsa moto zimatenthedwa kapena kuwotchedwa, motero zimasokoneza kuyaka kwa tcheni.
- Kupanga tinthu tating'onoting'ono tating'onoting'ono tating'onoting'ono tamoto tatenthedwa kapena kuwotchedwa, zomwe zimalimbikitsa kumangidwa kwa ma free radicals kuti athetse kuyaka kwa unyolo.
- Kutulutsidwa kwa mpweya wochuluka wa inert kapena mpweya wochuluka kwambiri pamene zinthu zoletsa moto zimatenthedwa kapena kuwotchedwa.
Njira zochepetsera malawi - njira zochepetsera gawo loyimitsa moto
Condensed phase retardancy retardancy imatanthawuza kubweza kwa malawi komwe kumachitika chifukwa chochedwetsa kapena kusokoneza kuwola kwazinthu zoletsa malawi mu gawo lofupika. Condensed phase retadancy makamaka imakhala ndi:
- Ma retardants amoto omwe amachedwetsa kapena kusokoneza kuwonongeka kwa mpweya woyaka ndi ma radicals omwe amatha kupangidwa panthawi ya coalescence.
- Ma Inorganic fillers okhala ndi mphamvu yayikulu yotentha muzinthu zoletsa moto, zomwe zimapangitsa kuti zinthuzo zisafike pa kutentha kwapang'onopang'ono posungira kutentha ndi kutenthetsa kwamafuta.
- Kuwola kotentha kwa chotchinga chamoto kumatenga kutentha, kotero kuti kutentha kwa zinthu zoletsa moto kumachepetsedwa kapena kuyimitsidwa.
- Zinthu zoletsa moto zikayaka, zimapanga kaboni wosanjikiza wa porous pamwamba pake, womwe ndi wovuta kuwotcha, umatsekereza kutentha ndi mpweya, ndikuletsa mpweya woyaka kulowa mugawo la gasi.
Flame retardant mechanism - kusokoneza njira yosinthira kutentha kwamoto
The inasokonekera kutentha kuwombola lawi retardant limagwirira zikutanthauza kuti mbali ya kutentha kwaiye chifukwa kuyaka kwa lawi retardant zinthu amachotsedwa, kotero kuti zinthu sangathe kusunga matenthedwe kuwola kutentha choncho sangathe kusunga kupanga mpweya kuyaka, choncho kuyaka ndi kudziletsa.
Zambiri zokhudza SINOYQX Melamine Cyanurate (MCA), chonde titumizireni imelo: [email protected] , kapena titumizireni uthenga pa: +86-28-8411-1861.
Zithunzi ndi zolemba zina zidapangidwanso kuchokera pa intaneti, ndipo kukopera ndi kwa wolemba woyamba. Ngati pali kuphwanya kulikonse, chonde titumizireni kuti tifufute.