Ndi Zida Zotani Zomwe Zimagwiritsidwa Ntchito Mu Mawaya Ochotsa Moto ndi Zingwe?

Flame retardant waya, amatanthauza waya ndi zinthu retardant moto, zambiri mu nkhani ya mayeso, pambuyo waya kuwotchedwa, ngati magetsi kutha, moto adzakhala lizilamuliridwa mu osiyanasiyana osiyanasiyana, si kufalikira, ndi lawi retardant ndi ziletsa ntchito utsi poizoni. Waya woyimitsa moto ngati gawo lofunikira lachitetezo chamagetsi, kusankha kwazinthu zake ndikofunikira, msika wapano womwe umagwiritsa ntchito zida zamawaya zoyaka moto kuphatikizaZithunzi za PVC, Zithunzi za XLPE, mphira wa silikoni ndi zipangizo zotetezera mchere.

Waya woyimitsa moto komanso kusankha zinthu zama chingwe

Kukwera kwa mlozera wa okosijeni wazinthu zomwe zimagwiritsidwa ntchito mu chingwe choletsa moto, kumapangitsanso kuti moto usavutike, koma pakuwonjezeka kwa index ya okosijeni, ndikofunikira kutaya zinthu zina. Ngati katundu wakuthupi ndi machitidwe a zinthuzo achepetsedwa, ntchitoyo ndi yovuta, ndipo mtengo wa zinthuzo ukuwonjezeka, choncho m'pofunika momveka bwino komanso moyenera kusankha ndondomeko ya okosijeni, ndondomeko ya okosijeni yazinthu zonse zotsekemera zimafika pa 30, katunduyo akhoza kupititsa mayeso a kalasi C muyeso, ngati zowotcha ndi zodzaza ndi zipangizo zochepetsera moto, mankhwala amatha kukwaniritsa zofunikira za Class Bwaya ndi zipangizo zamakono. ogaŵikana mu zipangizo za halogenated flame retardant ndi halogen-free lawi retardant zipangizo;

1. Zida zoziziritsa moto za halogenated

Chifukwa cha kuwonongeka ndi kumasulidwa kwa haidrojeni halide pamene kuyaka kwatenthedwa, hydrogen halide imatha kugwira ntchito yogwira ntchito yaulere ya HO muzu, kotero kuti kuyaka kwa zinthuzo kumachedwa kapena kuzimitsidwa kuti akwaniritse cholinga choletsa moto. Nthawi zambiri ntchito polyvinyl kolorayidi, neoprene mphira, chlorosulfonated polyethylene, ethylene-propylene mphira ndi zipangizo zina.

(1) Flame retardant polyvinyl chloride (PVC) : Chifukwa cha mtengo wotchipa wa PVC, kutchinjiriza kwabwino komanso kuletsa malawi, imagwiritsidwa ntchito kwambiri muwaya wamba woyaka moto ndi chingwe. Pofuna kuwongolera kuchedwa kwa lawi la PVC, ma halogen retardants (decabromodiphenyl ethers), ma parafini opangidwa ndi chlorinated ndi retardants ya synergic flame nthawi zambiri amawonjezedwa ku fomula kuti apititse patsogolo kuchedwa kwa PVC.

Ethylene propylene mphira (EPDM) : non-polar hydrocarbons, ndi katundu kwambiri magetsi, kukana mkulu kutchinjiriza, otsika dielectric imfa, koma ethylene propylene mphira ndi zipangizo kuyaka, tiyenera kuchepetsa mlingo wa crosslinking ethylene propylene mphira, kuchepetsa maselo unyolo kuchotsedwa chifukwa cha otsika maselo kulemera zinthu, mu dongosolo la flatar kusintha zinthu;

(2) Utsi wochepa komanso zida zochepetsera moto wa halogen
Makamaka polyvinyl kolorayidi ndi chlorosulfonated polyethylene awiri zipangizo. Onjezani CaCO3 ndi A(IOH)3 ku njira ya PVC. Zinc borate ndi MoO3 zimatha kuchepetsa kutulutsidwa kwa HCL ndi kuchuluka kwa utsi wa polyvinyl chloride woyaka moto, potero kumapangitsa kuti zinthu zisamawonongeke, kuchepetsa halogen, chifunga cha asidi, kutulutsa utsi, koma kungapangitse kuti index ya okosijeni ichepe pang'ono.

2. Zida zoziziritsa moto za halogen

Ma polyolefin ndi zinthu zopanda halogen, zopangidwa ndi ma hydrocarbons omwe amathyola kaboni dayokisaidi ndi madzi akawotchedwa osatulutsa utsi wambiri ndi mpweya woipa. Polyolefin makamaka imaphatikizapo polyethylene (PE) ndi ethylene - vinyl acetate polima (E-VA). Zida izi zokha zilibe zoletsa malawi, zimafunika kuwonjezera zotsalira zamoto ndi phosphorous retardants lawi lamoto, kuti zitheke kukhala zida zowotcha moto wa halogen; Komabe, chifukwa cha kusowa kwa magulu a polar pa unyolo wa zinthu zopanda polar ndi hydrophobicity, kuyanjana ndi zotsalira zamoto ndizosauka, zovuta kulumikiza mwamphamvu. Pofuna kupititsa patsogolo ntchito ya polyolefin, ma surfactants amatha kuwonjezeredwa ku formula. Kapena mu polyolefin wosakanizidwa ndi ma polima okhala ndi magulu a polar, kuti awonjezere kuchuluka kwa zodzaza zoziziritsa kumoto, kuwongolera zida zamakina ndi kukonza zinthu zakuthupi, ndikumapeza zoletsa moto. Zitha kuwoneka kuti waya woyaka moto ndi chingwe akadali opindulitsa kwambiri, ndipo kugwiritsa ntchito kwake ndikokonda zachilengedwe.