Nkhani

Kodi mungathetse bwanji mavuto omwe amabwera chifukwa cha zipangizo za chingwe zopanda utsi wambiri zomwe sizili ndi halogen?

LSZH imayimira ma halogen otsika utsi zero, opanda halogen yotsika utsi, mtundu uwu wa chingwe ndi waya umatulutsa utsi wochepa kwambiri ndipo sutulutsa ma halogen oopsa ukayikidwa pa kutentha. Komabe, kuti tikwaniritse zinthu ziwiri zofunika izi, popanga zipangizo za chingwe zopanda halogen yotsika utsi, ma halogen otsika utsi zero (LSZH) amadzazidwa kwambiri, zomwe zimapangitsanso mwachindunji kukhala ndi mphamvu zamakanika ndi zokonzera.

Mavuto pakugwiritsa ntchito zipangizo zopanda utsi wambiri wa halogen:

1. Fomula yokhazikika, LLDPE/EVA/ATH yokhala ndi zinthu zambiri zodzazidwa ndi LSZH polyolefin cable compounds ili ndi 55-70% ATH/MDH, Popeza kuchuluka kwa aluminiyamu hydroxide, magnesium hydroxide, ndi zina zoletsa moto kuti zigwirizane ndi kugwiritsa ntchito makinawa ndi koipa, kupanga kutentha kokangana panthawi yokonza kumabweretsa kutentha kwakukulu komwe kumayambitsa kuwonongeka kwa aluminiyamu ndi magnesium hydroxide.

2. Kugwiritsa ntchito bwino kwa extrusion, ngakhale mutawonjezera liwiro la extrusion voliyumu kumakhalabe komweko.

3. Kusagwirizana kosayenera kwa zinthu zoletsa moto ndi zodzaza ndi polyolefins, kusabalalika bwino panthawi yokonza, zomwe zimapangitsa kuti mphamvu zamakina zichepe.

4. Malo osalala komanso kusowa kwa kuwala panthawi yotulutsa chifukwa cha kufalikira kosagwirizana kwa zinthu zoletsa moto zomwe sizili zachilengedwe m'dongosolo.

5.Kugawanika kwa kapangidwe ka zinthu zoletsa moto ndi zodzaza kumapangitsa kuti kusungunuka kumamatire ku mutu wa nkhungu, zomwe zimachedwetsa kutulutsa kwa zinthuzo kuchokera ku nkhungu, kapena kuti mamolekyu ang'onoang'ono omwe ali mu kapangidwe kake amatuluka, zomwe zimapangitsa kuti zinthuzo zisonkhanire potsegula nkhungu, zomwe zimakhudza ubwino wa chingwecho.

Kutengera ndi nkhani zomwe zili pamwambapa, SILIKE yapanga mndandanda wachowonjezera cha silikonizinthu zomwe zapangidwa makamaka kuti zithetse mavuto omwe amakumana nawo pakukonza ndi ubwino wa pamwamba pa zipangizo za chingwe zopanda utsi wambiri, waya ndi chingwe zopanda utsi wambiri, kapena mankhwala ena a Polyolefin odzaza ndi mchere wambiri kuti agwiritsidwe ntchito pa waya ndi chingwe, zomwe zimapereka mayankho osiyanasiyana othandiza pamavuto awa.

Mwachitsanzo:Silikoni Masterbatch (Siloxane Masterbatch) LYSI-401Ndi mankhwala opangidwa ndi pelletized okhala ndi 50% ultra-high molecular weight siloxane polymer yomwe imafalikira mu low-density polyethylene (LDPE). Amagwiritsidwa ntchito kwambiri ngati chowonjezera chogwira ntchito bwino mu PE-compatible resin systems kuti akonze bwino momwe amagwirira ntchito ndikusintha mtundu wa pamwamba.

Kuonjezera 0.5-2% yaSilike silicone masterbatch LYSI-401Kudzera mu makina odzaza ndi zingwe omwe sagwiritsa ntchito utsi wambiri, waya ndi zingwe zomwe sizimataya utsi wambiri kapena ma halogen otsika a utsi (LSZH) zimathandiza opanga zingwe kuti azitha kupanga bwino kwambiri, amatha kusintha kusinthasintha kwa ntchito, kuchepetsa mphamvu ya torque, kuthamanga kwa mzere wotulutsa pamwamba popanda kusuntha kulikonse, komanso kukonza ubwino wa waya ndi zingwe, (Kuchepa kwa kupsinjika, Kulimba kwa kukanda ndi kutopa, kutsetsereka bwino kwa pamwamba, komanso kumva bwino kwa manja ...) popanda kulipira ndalama zowonjezera zosafunikira.

Kawirikawiri, kwa anthu wambasilikoni masterbatch, siloxane siili polar, ndipo magawo ambiri a carbon chain polymer solubility a kusiyana kwake ndi akulu kwambiri, kuwonjezera kwa milandu yambiri kungayambitse kusokonekera kwa screw, mafuta ochulukirapo, delamination pamwamba pa chinthucho, zomwe zimakhudza pamwamba pa zinthu zomwe zimagwirizanitsidwa ndi zinthu zomwe zili mu substrate zomwe zimafalikira mosagwirizana ndi zina zotero.

Pamene,Zowonjezera za silicone zolemera kwambiri za SILIKEZimasinthidwa ndi magulu apadera, omwe amatha kusankhidwa ndikufananizidwa malinga ndi zosowa zosiyanasiyana za zowonjezera za silicone m'magawo osiyanasiyana. Mndandanda wazinthuzi ungathandize kukhala wolimba mu gawo lapansi, motero umagwirizana bwino ndi gawo lapansi, kufalikira mosavuta, kulumikizana kwamphamvu, motero kupatsa gawo lapansi magwiridwe antchito abwino kwambiri. Ikagwiritsidwa ntchito mu machitidwe a LZSH ndi HFFR, imatha kupewa kutsetsereka kwa zomangira komanso ingathandize kwambiri pakukweza kusonkhanitsa kwa zinthu mu nkhungu ya pakamwa.