Tsawg Halogen-free Cable

Cov ntaub ntawv tus neeg xyuas pib ntawm cov xov hlau feem ntau yog tooj liab thiab txhuas, thiab lwm yam ntaub ntawv yog cov ntaub ntawv insulating. Thawj cov khoom siv rwb thaiv tsev ntawm cov xov hlau thiab cables feem ntau yog PVC, tab sis PVC muaj halogen. Nyob rau hauv rooj plaub ntawm kev sib tsoo ntawm cov xov hlau thiab cables, nws yuav tso pa tawm cov pa phem, ua phem rau ib puag ncig, thiab cuam tshuam rau kev tua hluav taws thiab kev khiav tawm ntawm cov neeg tua hluav taws. Environmentally friendly wires thiab cables xa mus rau cov xov hlau thiab cables nrog" ntsuab" cov ntaub ntawv insulating. Cov no"ntsuab" Cov ntaub ntawv insulating tsis tsim cov khoom tsis zoo thaum kub hnyiab, nplaim hluav taws tsis muaj halogen, thiab tsis tawm cov pa phem thaum ua haujlwm txhua hnub. Tsis tas li ntawd, tsis muaj cov khoom siv ntxiv uas muaj cov hlau hnyav hnyav thiab tsis muaj cov yas uas yuav tsum tau siv rau PVC zoo tib yam, ntau yam uas yog carcinogenic thiab teratogenic. Yog li ntawd, ib puag ncig tus phooj ywg xov hlau yuav tsum yog" ntsuab" cov xov hlau uas tsis muaj cov khoom tsim kev puas tsuaj rau ib puag ncig.

Cov pa luam yeeb hnyav thiab cov pa roj ntau ntau yuav raug tsim tom qab qhov hluav taws kub ntawm cov xov hlau thiab cables. Hauv qhov hluav taws kub yav dhau los, cov pa taws sib txawv ua rau cov neeg uas dim tsis meej pem thiab ntshai, thiab ua rau lawv nyob ntev hauv qhov chaw tua hluav taws. Tsis tas li ntawd, feem ntau ntawm cov neeg tsis muaj hmoo tau tuag los ntawm kev ua pa vim kev nqus pa ntawm cov pa phem. Nws tuaj yeem hais tias cov pa tshuaj lom yog tus naj npawb ib tus neeg tua neeg hauv qhov hluav taws kub. Cov teb chaws tsim kho tau tsim cov kab hluav taws xob tsis muaj halogen-tsis muaj pa taws tsawg hauv xyoo 1980, thiab pom zoo kom siv cov xov hlau tsis zoo thiab cov cables los hloov thiab maj mam tso tseg kev siv tshuaj lom PV C xov hlau thiab cables. Uas yog hais, cov tshuaj toxicity tso tawm los ntawm halogen-muaj cables nyob rau hauv hluav taws yog heev txaus ntshai. Yog hais tias qhov toxicity Performance index ntawm cov roj concentration uas yuav ua rau tuag nyob rau hauv 30 feeb yog txiav txim raws li 1, lub toxicity Performance index ntawm PVC yog 15.01 thiab toxicity Performance index ntawm halogen-free polyolefin yog 0.7 9. Cov neeg tsuas muaj peev xwm ciaj sia nyob rau hauv cov pa luam yeeb ntawm PVC rau. 2 feeb, tab sis yog tias cov ntaub ntawv tsis muaj halogen hloov pauv, tib neeg' txoj sia nyob hauv cov pa luam yeeb tuaj yeem txuas ntxiv mus rau 40 feeb, uas ua rau lub sijhawm khiav tawm ntau heev thaum hluav taws kub. Tsis tas li ntawd, raws li cov ntaub ntawv tseem ceeb, lub teeb xa hluav taws xob ntawm cov pa taws tawm los ntawm cov nplaim hluav taws xob PVC cable thaum lub sij hawm combustion yog tsawg dua 15%, uas yog, nyob rau hauv qhov concentration ntawm cov pa luam yeeb, qhov muag liab qab pom qhov deb yog li 2m. Yog li ntawd, nyob rau hauv qhov hluav taws kub, cov pa luam yeeb muaj zog ua rau cov neeg raug mob kiv taub hau thiab tsis tuaj yeem paub qhov txawv ntawm qhov kev taw qhia, ncua sij hawm nyob hauv qhov hluav taws kub, ua rau muaj kev nqus pa ntxiv ntawm cov pa taws thiab cov pa phem thiab ua pa.

Nyob rau hauv ntau ntawm cov kev ntsuam xyuas, nws pom tias cov pa luam yeeb thiab cov roj uas muaj zog ntawm cov khoom siv nrog polyolefin raws li cov khoom siv hlau thiab hydrated hlau compound al (oh) 3 li nplaim taws retardant ua tau raws li cov cai ntawm IEC tus qauv. Al (OH) 3 los yog Mg (OH) 2 yog ib qho inorganic hydroxide, uas muaj cov nplaim hluav taws zoo heev, tsis muaj tshuaj lom, haus luam yeeb thiab tsis muaj corrosion. Nws muaj cov pa luam yeeb zoo, vim tias kev haus luam yeeb thiab nplaim hluav taws yog qhov tseem ceeb sib npaug.

Los ntawm Karamay theatre hauv Xinjiang mus rau lub tsev yees duab hauv Jiaozuo, Henan, 370 tus neeg raug hlawv kom tuag. Qhov teeb meem ntawm Z nyob rau hauv cov hluav taws kub yog cov pa phem thiab cov pa luam yeeb, thiab halogen-dawb tsis muaj pa taws tsis muaj pa taws retardant ib puag ncig-phooj ywg thiab cables daws cov teeb meem saum toj no. Halogen dawb, tsis muaj pa luam yeeb, nplaim hluav taws thiab ib puag ncig-phooj ywg thiab cables tau siv rau hauv qhov chaw kaw thiab cov tsev nruab nrab thiab siab siab uas muaj ntau tus neeg tuaj sib sau. Cov kab hluav taws xob sab qab teb tsim los ntawm Guangdong South cable tau ua tiav rau cov chaw uas xav tau kev nyab xeeb siab hauv txhua qhov chaw ntawm lub neej, xws li Guangzhou Metro, Guangzhou ntauwd, Jieyang Chaoshan tshav dav hlau, Guangzhou Shangri La Hotel, Shenzhen Metro thiab lwm yam.

Low smoke halogen-free flame retardant polyolefin is flame retardant by endothermic and metal oxide oxygen isolation methods. Its flame retardant mechanism is as follows: first, when wires and cables are burned, the surface hydroxide decomposes. This reaction is an endothermic reaction, which absorbs a large amount of heat in the surrounding air and reduces the surface temperature of wires and cables; Second, the generated water molecules also absorb a lot of heat on the surface of wires and cables, and the water vapor also isolates oxygen; Third, the metal oxide crusts produced prevent oxygen from contacting with organic matter again.