Taw qhia rau Cov Hluav Taws Xob Hluav Taws Xob PVC Hlau thiab Cable Compounds
Cov pa luam yeeb tsawg PVC (Polyvinyl Chloride) xaim thiab cable sib txuas yog cov khoom siv thermoplastic tshwj xeeb tsim los txo cov pa luam yeeb thiab cov pa roj emissions thaum lub sij hawm combustion. Qhov no ua rau lawv xaiv qhov tseem ceeb rau cov ntawv thov uas qhov kev nyab xeeb hluav taws yog qhov tseem ceeb. Feem ntau siv rau rwb thaiv tsev thiab tsho hauv hluav taws xob cables, cov tebchaw no muaj ntau yam tseem ceeb:
Kev sib xyaw:Cov pa luam yeeb tsawg PVC yog tsim los ntawm kev sib xyaw ntawm PVC resin, plasticizers (xws li dioctyl phthalate thiab tri-2-ethylhexyl trimellitate), nplaim retardants (xws li, antimony trioxide, aluminium trihydrate, thiab zinc borate), stabilizers (calcium / zinc-based), fillers (calcium. carbonate), thiab
Cov khoom siv hluav taws xob tsawg:Tsis zoo li cov qauv PVC, uas tuaj yeem txo qhov pom tau txog li 90% hauv 30 feeb nkaus xwb vim muaj pa taws hnyav, cov pa luam yeeb tsawg PVC yog tsim los ua kom tau raws li cov qauv kev nyab xeeb xws li BS EN 61034. Cov khoom sib txuas no tso cai rau tsawg kawg 60% lub teeb xa tawm thaum lub sij hawm combustion, txhim kho kev nyab xeeb zoo.
Nplaim Retardancy: PVC inherently muaj nplaim-retardant zog vim nws cov ntsiab lus chlorine, uas yog txhim kho nrog ntxiv nplaim retardant additives. Cov tebchaw no ua tau raws li cov qauv nruj xws li IEC 60332-1-2, UL VW1, thiab E84 (qhov ntsuas hluav taws xob sib kis <25, pa taws tsim ntsuas <50).
Daim ntawv thov:Feem ntau siv nyob rau hauv ib puag ncig uas muaj kev pheej hmoo siab xws li cov chaw zov me nyuam, tunnels, aircraft, rail carriages, thiab pej xeem cov tsev, tsis tshua muaj pa luam yeeb PVC xaim thiab cable compounds yog ib qho tseem ceeb rau txo cov kev pheej hmoo cuam tshuam nrog pa luam yeeb thiab fumes thaum muaj hluav taws.
Common Processing Challenges and Solutions for Low Smoke PVC Hlau thiab Cable Compounds
Kev ua cov pa luam yeeb PVC tsis tshua muaj cuam tshuam nrog kev tswj hwm ntau yam kev cov nyom, tshwj xeeb tshaj yog vim lawv cov qauv tsim. Hauv qab no, peb tham txog qee qhov kev ua haujlwm ntau tshaj plaws thiab lawv cov kev daws teeb meem:
1. Cov ntsiab lus siab ua kom tsis muaj zog thiab siab torque
Kev sib tw:Txhawm rau kom ua tiav cov pa luam yeeb tsawg, cov khoom siv PVC feem ntau muaj cov khoom siv tsis zoo xws li txhuas trihydrate (ATH) lossis magnesium hydroxide (Mg (OH) ₂) - feem ntau 20-60% los ntawm qhov hnyav. Thaum cov fillers no txo cov pa taws thiab nplaim taws, lawv tuaj yeem ua kom cov viscosity, txo cov dej ntws, thiab ua rau cov khoom siv hnav.
Kev daws:
Siv cov khoom siv xws li cov khoom siv hauv / sab nraud (piv txwv li, calcium stearate, polyethylene waxes, lossissilicone additives) ntawm 0.5-2.0 phr kom qis viscosity thiab txhim khu kev khiav.
Siv siab L / D piv ntxaib-ntsia hlau extruders los txhim kho kev sib tov thiab muab tub lim dispersion.
Siv lub tshuab kneader nrog conical quab yuam noj kom ntseeg tau tias sib xyaw ua ke.
Xaiv cov fillers uas tswj qhov ntau thiab tsawg thiab kho qhov chaw los txhim kho kev sib raug zoo thiab txo kev puas tsuaj.
2. Thermal stability
Kev sib tw:PVC tuaj yeem degrade thaum lub sijhawm ua haujlwm, tshwj xeeb tshaj yog nrog cov khoom ntim siab thiab cov nplaim hluav taws kub, tso cov roj hydrogen chloride (HCl) uas ua rau cov khoom degradation, discoloration, thiab cov khoom siv corrosion.
Kev daws:
Ntxiv cov stabilizers xws li calcium / zinc-raws li stabilizers ntawm 2-4 phr kom tsis txhob HCl thiab tiv thaiv degradation.
Siv epoxidized soybean roj (ESO) ua ib co-stabilizer rau kev txhim kho thermal thiab yees duab-stability.
Tswj qhov kub thiab txias (160-190 ° C) kom tsis txhob overheating.
suav nrog phenolic antioxidants (piv txwv li, Bisphenol A ntawm 0.3-0.5%) txhawm rau txhim kho kev laus thaum ua haujlwm.
3. Plasticizer Migration
Kev sib tw:Plasticizers siv los txhim kho kev yooj yim tuaj yeem tsiv mus nyob rau hauv qhov kub siab (xws li, hauv cov chaw zov me nyuam), ua rau cov khoom seem uas yuav cuam tshuam rau cov teeb liab kis tau tus mob los yog txo cov cable ntev.
Kev daws:
Siv cov polymeric plasticizers uas tsis yog tsiv teb tsaws chaw es tsis txhob siv cov monomeric sawv daws yuav (xws li, DOP, DINP) kom txo tau kev tsiv teb tsaws.
Tsim cov qauv "tsis muaj kua" plenum, raws li tau tsim los ntawm OTECH, los tiv thaiv plasticizer tsiv teb tsaws nyob rau hauv qhov chaw kub.
Xaiv cov plasticizers zoo li TOTM, uas muaj qhov qis dua thiab tsim nyog rau cov ntawv thov kub.
4. Sib npaug Nplaim taws retardancy thiab haus luam yeeb
Kev sib tw:Ua kom cov nplaim hluav taws kub hnyiab los ntawm cov khoom siv ntxiv xws li antimony trioxide (3-5%) lossis brominated compounds (12-15%) tuaj yeem ua rau kom muaj pa taws, ua rau nws nyuaj rau kev sib npaug ntawm ob qho tib si. Ib yam li ntawd, cov khoom siv ntxiv xws li calcium carbonate tuaj yeem txo cov pa luam yeeb tab sis tuaj yeem txo qis cov pa ntsuas pa, cuam tshuam cov nplaim hluav taws.
Kev daws:
Siv cov nplaim hluav taws sib xyaw ua ke sib xyaw ua ke (xws li ATH nrog zinc borate) txhawm rau txhim kho cov nplaim hluav taws kub hnyiab thiab hluav taws kub hnyiab. ATH, piv txwv li, tso dej vapor los cuam tshuam kev sib txuas thiab tsim cov txheej txheem tiv thaiv, uas txo cov pa taws.
Txwv cov CaCO₃ thauj khoom rau 20-40 phr kom sib npaug ntawm tus nqi, kev haus luam yeeb, thiab nplaim hluav taws, vim tias ntau dhau tuaj yeem txo cov pa ntsuas pa.
Tshawb nrhiav cross-linkable PVC formulations, xws li hluav taws xob cross-linked PVC, los txhim kho cov nplaim hluav taws xob tsis muaj kev cia siab rau cov khoom siv halogenated.
5. Kev ua tau zoo thiab qhov chaw zoo
Kev sib tw:Cov muab tub lim siab thiab cov ntsiab lus ntxiv tuaj yeem ua rau tsis zoo ntawm qhov kawg, tuag drool, thiab extrusion tsis sib xws, uas cuam tshuam rau cov tsos thiab kev ua haujlwm ntawm cov khoom siv cable kawg.
Kev daws teeb meem:SivSILIKE silicone hmoov LYSI-100A. Qhov nosilicone-raws li additiveyog dav siv raws li ib tugnpaum lubricant processing additiverau PVC-compatible resin systems los txhim kho cov khoom ua haujlwm thiab nto zoo. Xws li zoo resin flowability, pwm filling & tso tawm, tsawg dua extruder torque, thiab qis coefficient ntawm kev sib txhuam, ntau dua mar, thiab abrasion kuj ...
1) Tsis tshua muaj pa luam yeeb PVC xaim thiab cable sib txuas: ruaj khov extrusion, tsawg tuag siab, du nto ntawm hlau & cable.
2) Tsis tshua muaj kev sib txhuam PVC hlau thiab cable: Tsawg coefficient ntawm kev sib txhuam, kev zoo siab ntev.
3) Scratch-resistant PVC khoom: Los tiv thaiv khawb, zoo li hauv PVC shutters.
4) PVC profiles: zoo pwm filling thiab pwm tso tawm, tsis muaj pwm flash.
5) PVC yeeb nkab: ceev extrusion ceev, txo COF, txhim kho nto smoothness, thiab txuag nqi.
Yog tias koj tab tom ntsib cov teeb meem nrog PVC compound ua thiab qhov chaw tsis xws luag, los yog tawm tsam nrog cov pa luam yeeb tsawg PVC xaim thiab cable ua, simLYSI-100A Silicone Powder rau smoother extrusion thiab ntau dua efficiency.
For help locating specific information about a particular product, you can contact us at Tel: +86-28-83625089 / +86-15108280799, via email: amy.wang@silike.cn, or visit our website www.siliketech.com to discover how SILIKE can solve your PVC wire and cable production challenges related to processing properties and surface quality. We offer solutions including:
Txhim kho qhov zoo ntawm cov pa luam yeeb tsawg hauv PVC
Txhim kho PVC Cable Extrusion nrog Silicone Hmoov
Kev Pabcuam rau PVC Compounds kom txo tau kev sib txhuam
Boost PVC Hlau thiab Cable Extrusion Efficiency
Txhim kho PVC Compound Flowability rau Faster Extrusion
Silicone Additives los txhim kho PVC ua tau zoo
Maximize PVC Cable Compound Performance nrog Silicone Masterbatch
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Post lub sij hawm: May-09-2025
