Izindaba

Ungawaxazulula kanjani amaphuzu obuhlungu okucubungula wezinto zekhebula ezingenantuthu ephansi ye-halogen?

I-LSZH imele intuthu ephansi enguziro halogens, i-halogen engenantuthu ephansi, lolu hlobo lwekhebula nocingo lukhipha intuthu ephansi kakhulu futhi alukhiphi ama-halogen anobuthi lapho luchayeke ekushiseni. Kodwa-ke, Ukuze kuzuzwe lezi zici ezimbili ezibalulekile, ekukhiqizeni izinto zekhebula ezingenantuthu ephansi ye-halogen, ama-halogens ayi-Low-smoke zero halogens (LSZH) alayishwa kakhulu, okuholela ngqo kumishini nokucubungula izakhiwo.

Ubunzima bokucutshungulwa kwezinto ezingenayo intuthu ephansi ye-halogen:

1. Ifomula evamile, okuqukethwe okuphezulu kwe-LLDPE/EVA/ATH okugcwele i-LSZH polyolefin cable compounds iqukethe kufika ku-55-70% ATH/MDH, Njengenani elikhulu le-aluminium hydroxide, i-magnesium hydroxide, nezinye izinqamuli zomlilo ukujoyina ukusetshenziswa kwesistimu. ukuhamba kumpofu, ukukhiqizwa kokushisa okungqubuzanayo ngesikhathi sokucubungula kuholela ekwenyukeni kwezinga lokushisa okubangela ukuwohloka kwe-aluminium ne-magnesium hydroxide.

2. Ukusebenza kahle kwe-extrusion okuphansi, noma unyusa isivinini sevolumu ye-extrusion ihlala ifana ngokuyisisekelo.

3. Ukungahambisani kahle kwama-inorganic flame retardants nama-filler ane-polyolefin, ukuhlakazeka okungalungile ngesikhathi sokucubungula, okuholela ekwehleni kwezakhiwo zemishini.

4. Ingaphezulu elimahhadlahhadla kanye nokuntuleka kokucwebezela ngesikhathi sokukhishwa ngenxa yokuhlakazeka okungalingani kwezinqamuleli zomlilo ezingaphili ohlelweni.

5.I-polarity yesakhiwo ye-flame retardants kanye nezigcwalisi ibangela ukuncibilika ukuthi kunamathele ekhanda lesikhunta, kubambezele ukukhululwa kwento esikhunjini, noma ama-molecule amancane ekubunjweni avele aphume, okuholela ekwakhekeni kwezinto ezibonakalayo ekuvulekeni kwesikhunta, ngaleyo ndlela kuthinte ikhwalithi yekhebula.

Ngokusekelwe ezindabeni ezingenhla, i-SILIKE yenze uchungechunge lweisithako se-siliconeimikhiqizo eklanyelwe ngokukhethekile ukubhekana nezinhlungu zokucutshungulwa kanye nekhwalithi yangaphezulu yezinto zekhebula ezingenantuthu ephansi ye-halogen, izinhlanganisela zezintambo ze-halogen ze-halogens ezinentuthu ephansi, noma ezinye izinhlanganisela ze-Polyolefin ezigcwele amaminerali amaningi zokusetshenziswa kwezintambo nezintambo, ezihlinzeka ngezixazululo ezisebenzayo ezihlukahlukene. kulezi zinselele.

Isb:I-Silicone Masterbatch (Siloxane Masterbatch) LYSI-401iwukwakheka kwe-pelletized ene-50% ye-ultra-high molecular weight siloxane polymer ehlakazwe ku-low-density polyethylene (LDPE). Isetshenziswa kabanzi njengesengezo sokucubungula esisebenzayo ezinhlelweni ze-resin ezihambisana ne-PE ukuze kuthuthukiswe izakhiwo zokucubungula nokuguqula ikhwalithi ephezulu.

Ukungeza u-0.5-2% weSILIKE abicah masterbatch LYSI-401ohlelweni lokugcwalisa olubushelelezi ilangabi oluphansi lwentambo yamahhala ye-halogen & ikhebula elihlanganisiwe noma izinto zekhebula ze-zero zero (LSZH) eziphansi zenza izintambo namakhebula bakhuphule ukukhiqiza, bangathuthukisa uketshezi lokucubungula, banciphise i-torque, isivinini somugqa wokukhipha ngaphandle ngokushesha ukufuduka, thuthukisa ikhwalithi engaphezulu yentambo nekhebuli, (i-coefficient ephansi yokungqubuzana, Ukuvikeleka okuthuthukisiwe kokuklwebheka nokugqokwa, ukushelela okungcono, nomuzwa wesandla ...) ngaphandle kokukhokha iprimiyamu yezithasiselo zokusebenza ezingadingeki.

Ngokuvamile, okwejwayelekilei-silicone masterbatch, i-siloxane ayiyona i-polar, futhi iningi lepharamitha ye-carbon chain polymer solubility yomehluko mikhulu kakhulu, ukungezwa kwenani elikhulu lamacala kungase kuholele ekucutshungulweni kwe-screw slippage, ukugcoba ngokweqile, ubuso bomkhiqizo we-delamination, okuthinta ubuso bemikhiqizo yezakhiwo zokubopha zemikhiqizo ku-substrate ehlakazekile ngokungalingani nokunye.

Ngenkathi,Izithasiselo ze-silicone ze-molecular high-high molecular weightzilungiswa ngamaqembu akhethekile, angakhethwa futhi afaniswe ngokuvumelana nezidingo ezahlukene zezithasiselo ze-silicone kuma-substrates ahlukene. Lolu chungechunge lwemikhiqizo lungadlala indima yokubambelela ku-substrate, ngaleyo ndlela ihambisane kangcono ne-substrate, ukusabalalisa okulula, ukubopha okuqinile, futhi ngaleyo ndlela kunikeze i-substrate ukusebenza okuhle kakhulu. Uma isetshenziswa ezinhlelweni ze-LZSH ne-HFFR, ingagwema ngempumelelo ukushelela kwesikulufa futhi ingadlala indima ebalulekile ekuthuthukiseni ukunqwabelana kwezinto ezisesikhunjini somlomo.