Nplaim retardant xaim, hais txog cov hlau nrog cov kev ntsuas hluav taws kub, feem ntau yuav raug muab tshem tawm, yog tias hluav taws xob tau hlawv, nrog nplaim taws thiab tiv thaiv cov pa taws. Nplaim taws retardant hlau ua qhov tseem ceeb ntawm kev nyab xeeb hluav taws xob, kev xaiv ntawm cov khoom siv yog qhov tseem ceeb, cov khoom lag luam feem ntau siv cov nplaim hluav taws xob nrogPvc, XLPE, silicone roj hmab thiab pob zeb hauv av rwb thaiv tsev cov ntaub ntawv.
Nplaim retardant hlau thiab cable cov khoom siv
Qhov siab dua cov pa oxygen ntsuas ntawm cov khoom siv nyob rau hauv cov nplaim taws retardant kev ua tau zoo, tab sis nrog kev nce ntawm cov pa oxygen, nws yog ib qho tsim nyog los poob qee cov khoom. Yog tias cov khoom siv lub cev thiab cov txheej txheem ntawm cov khoom siv tau nce, yog qhov tsim nyog xaiv cov khoom siv B thiab chav kawm A. nplaim taws Retardant hlau thiab Cov khoom siv cable tau muab faib rau hauv Halogenated nplaim taws retardant cov ntaub ntawv thiab Halogen-dawb nplaim retardant cov ntaub ntawv;
1. Halogenated Taws Retardant Cov Ntaub Ntawv
Vim tias kev txiav txim siab thiab tso tawm hydrogen halide thaum lub commogus yog rhuab, yog li ntawd kev sib txuas ntawm cov khoom siv tau ncua lossis tua hluav taws kom ua tiav lub hom phiaj retardant. Feem ntau siv yog polyvinyl chloride, neoprene roj hmab, chlorosulfonated polyethylene, ethylene-propylene roj hmab thiab lwm yam khoom siv.
(1) nplaim taws retardant polyvinyl chloride (pvc) Txhawm rau txhim kho cov nplaim hluav taws xob rov qab ntawm PVC, Halogromodipanchenyl uas muaj cov neeg ua yeeb yam los txhim kho cov nplaim hluav taws xob rov qab ntawm PVC.
Ethylene cov roj hmab propylene (EPDM): Tsis yog-polarricing tsis muaj zog, nyob rau hauv kev txiav txim siab cov roj hmab uas muaj kuab, peb yuav tsum txhim kho cov nplaim hluav taws xob, peb yuav tsum txhim kho cov nplaim hluav taws xob roj hmab retardant thaj chaw ntawm cov khoom;
(2) Cov pa luam yeeb tsawg thiab cov nplaim taws qis qis retardant cov ntaub ntawv
Mas rau polyvinyl chloride thiab chlorosulfonated polyethylene ob cov khoom. Ntxiv CaCo3 thiab A (Ioh) 3 rau tus qauv ntawm PVC. Zinc Borate thiab Moo3 tuaj yeem txo tus HCL tso tawm thiab cov pa hluav taws xob rov qab los ntawm cov khoom siv hluav taws xob, cov pa hluav taws xob, tab sis yuav ua rau cov pa oxygen me ntsis poob qis.
2. Halogen-dawb nplaim retardant cov ntaub ntawv
Polycenins yog Halogen-dawb cov ntaub ntawv, muaj cov khoom siv hydrocarbons uas tawg rau cov pa roj carbon dioxide thiab dej thaum hlawv tsis muaj pa luam yeeb thiab teeb meem roj. Polyolefin tsuas yog suav nrog polyethylene (PE) thiab ethylene - vinyl acetate polymers (E-VA). Cov ntaub ntawv no lawv tus kheej tsis muaj nplaim taws retardant, yuav tsum tau ntxiv inorganic nplaim taws retardants, thiaj li yuav ua rau cov khoom siv halogen zoo retardant; Txawm li cas los xij, vim qhov tsis muaj cov pab pawg polar ntawm cov tshuaj molecular ntawm cov tshuaj uas tsis-polar nrog cov nplaim hluav taws xob tsis zoo, nyuaj rau kev sib raug zoo. Txhawm rau txhim kho cov kev ua si saum npoo av ntawm polyolefin, surfactants tuaj yeem ntxiv rau cov mis. Los yog hauv polyolefin tov nrog polymers muaj cov pab pawg polar, yog li ua kom cov nplaim hluav taws xob thiab ua cov khoom siv zoo dua qub. Nws tuaj yeem pom cov nplaim hluavtaws retardant hlau thiab cable yog tseem muaj txiaj ntsig zoo, thiab kev siv yog ib puag ncig zoo.
Lub Sijhawm Post: Dec-03-2024