Iindaba

Indlela yokusombulula iintlungu zokucutshungulwa kwezixhobo zekhebula ezingenayo i-halogen ezingenamsi?

I-LSZH imele i-halogens yomsi ophantsi, i-halogen engenamsi omncinci, olu hlobo lwentambo kunye nocingo lukhupha umsi ophantsi kakhulu kwaye alukhuphi iihalojeni ezinetyhefu xa zisesichengeni sobushushu. Nangona kunjalo, ukuze kuphunyezwe ezi zinto zimbini zibalulekileyo, ekuveliseni izixhobo zentambo ze-halogen ezingenayo umsi ophantsi, i-Low-smoke zero halogens (LSZH) ilayishwe kakhulu, ekhokelela ngokuthe ngqo kwi-mechanical & processing properties.

Ubunzima bokulungiswa kwezinto ezingenayo i-halogen ephantsi:

1. Ifomula eqhelekileyo, i-LLDPE / EVA / ATH umxholo ophezulu ogcwele i-LSZH i-polyolefin i-cable compounds iqulethe ukuya kwi-55-70% ATH / MDH, Njengoko inani elikhulu le-aluminium hydroxide, i-magnesium hydroxide, kunye nezinye i-flame retardants ukujoyina ukusetyenziswa kwenkqubo yokuhamba kubi, ukuveliswa kobushushu befrictional ngexesha lokucubungula kubangela ukunyuka kwe-hydroxide ye-ahydroxide kunye nokunyuka kweqondo lokushisa.

2. Ukusebenza okuphantsi kwe-extrusion, nokuba unyusa isantya somthamo we-extrusion uhlala ufana.

3. Ukungahambelani kakuhle kwe-inorganic flame retardants kunye ne-fillers kunye ne-polyolefins, ukusabalalisa okungahambi kakuhle ngexesha lokucubungula, okukhokelela ekunciphiseni iimpawu zomatshini.

4. Umphezulu orhabaxa kunye nokungabikho kweglosi ngexesha le-extrusion ngenxa yokusasazwa okungalinganiyo kwe-inorganic flame retardants kwinkqubo.

5.I-polarity yesakhiwo se-flame retardants kunye ne-fillers ibangela ukuba i-melt ibambelele kwintloko ye-mold, ukulibazisa ukukhutshwa kwezinto ezivela kwi-mold, okanye i-molecules ezincinci ekubunjweni zikhupha ngaphandle, okubangelwa ukwakhiwa kwezinto ezibonakalayo ekuvuleni kwesikhunta, ngaloo ndlela kuchaphazela umgangatho wekhebula.

Ngokusekwe kule miba ingentla, i-SILIKE iphuhlise uthotho lwei-silicone yokongezaiimveliso ezilungiselelwe ngokukodwa ukujongana neendawo zentlungu zokucutshungulwa kunye nomgangatho womphezulu wezinto zomsi ophantsi we-halogen-free cable, umsi ophantsi we-halogens we-halogens ucingo & iikhompawundi zentambo, okanye ezinye iikhompawundi zePolyolefin ezizaliswe kakhulu ngeeminerali zocingo kunye nezicelo zentambo, ezibonelela ngeendlela ezahlukeneyo zokusombulula le mingeni.

Umzekelo:I-Silicone Masterbatch (iSiloxane Masterbatch) LYSI-401i-pelletized formulation kunye ne-50% ye-ultra-high molecular weight siloxane polymer ehlakazwe kwi-polyethylene ephantsi (LDPE). Isetyenziswa ngokubanzi njengesongezo sokusebenza esisebenzayo kwiinkqubo ze-resin ezihambelanayo ne-PE ukuphucula iipropathi zokusetyenzwa kunye nokuguqula umgangatho womphezulu.

Ukongeza i-0.5-2% yeSILIKE silicone masterbatch LYSI-401kwinkqubo yokuzalisa idangatye eliphezulu lomsi ophantsi we-halogen yasimahla kunye neekhompawundi zentambo okanye umsi ophantsi we-zero halogens (LSZH) izinto zentambo yenza ukuba iingcingo kunye nabenzi bentambo bakhulise imveliso, banokuphucula ukusetyenzwa kwamanzi, ukunciphisa i-torque, isantya somgca okhawulezayo we-extrusion ngaphandle kokufuduka, ukuphucula umgangatho womphezulu wocingo kunye nentambo ephantsi, kunye nokungasebenzi kakuhle kwentambo, kunye nentambo ephantsi, kunye ne-cocracy ephantsi. ukumelana, ukutyibilika komphezulu ongcono, kunye nokuziva kwesandla ...) ngaphandle kokuhlawula iprimiyamu yezongezo zokusebenza ezingafunekiyo.

Ngesiqhelo, ngokwesiqheloi-silicone masterbatch, i-siloxane ayiyo-polar, kwaye uninzi lweeparamitha ze-carbon chain polymer solubility zomahluko zikhulu kakhulu, ukongezwa kwenani elikhulu lamatyala kunokukhokelela ekusetyenzweni kwe-screw slippage, i-lubrication egqithisileyo, umphezulu wemveliso ye-delamination, echaphazela umphezulu wemveliso yeepropathi zebhondi yeemveliso kwi-substrate esasazwe ngokungafaniyo njalo njalo.

Ngelixa,SILIKE's izongezo ze-silicone ezinobunzima obuphezulu bemolekyuliziguqulwa ngamaqela akhethekileyo, anokukhethwa kwaye afaniswe ngokweemfuno ezahlukeneyo zezongezo ze-silicone kwii-substrates ezahlukeneyo. Olu luhlu lweemveliso lunokudlala indima yokubambelela kwi-substrate, ngaloo ndlela ihambelana ngcono ne-substrate, ukusasazwa lula, ukudibanisa okunamandla, kwaye ngaloo ndlela inike i-substrate ukusebenza okugqwesileyo ngakumbi. Xa isetyenziswa kwiinkqubo ze-LZSH kunye ne-HFFR, inokunqanda ngokufanelekileyo ukutyibilika kwe-screw kwaye inokudlala indima ebalulekileyo ekuphuculeni ukuqokelelana kwezinto kumbumba womlomo.