Isingeniso Sezintambo Ze-PVC Ezinomusi Ophansi Nezinhlanganisela Zekhebula
Izintambo ze-PVC (Polyvinyl Chloride) kanye nezintambo ezihlanganisiwe ezinentuthu encane ziyizinto ezikhethekile ze-thermoplastic ezenzelwe ukunciphisa intuthu kanye nokukhishwa kwegesi enobuthi ngesikhathi sokusha. Lokhu kuzenza zibe ukukhetha okubalulekile kwezicelo lapho ukuphepha komlilo kuyinto eza kuqala. Ngokuvamile ezisetshenziselwa ukuvikela nokubopha izintambo zikagesi, lezi zinhlanganisela zinikeza izici eziningana ezibalulekile:
Ukwakheka:Ama-compound e-PVC angenantuthu aphansi akhiwe ngenhlanganisela ye-resin ye-PVC, ama-plasticizer (njenge-dioctyl phthalate kanye ne-tri-2-ethylhexyl trimellitate), ama-flame retardants (isb., i-antimony trioxide, i-aluminium trihydrate, kanye ne-zinc borate), ama-stabilizer (asekelwe ku-calcium/zinc), ama-filler (i-calcium carbonate), kanye nama-lubricant.
Izakhiwo Zomusi Ophansi:Ngokungafani ne-PVC ejwayelekile, enganciphisa ukubonakala ngo-90% ngemizuzu engama-30 kuphela ngenxa yentuthu eningi, ama-PVC aqukethe umusi omncane aklanywe ukuze ahlangabezane nezindinganiso zokuphepha ezifana ne-BS EN 61034. Lawa ma-compound avumela okungenani ukuhanjiswa kokukhanya okungu-60% ngesikhathi sokusha, okuthuthukisa kakhulu ukuphepha.
Ukuvimbela Umlilo: I-PVC ngokwemvelo inezakhiwo ezivimbela ilangabi ngenxa yokuqukethwe kwayo kwe-chlorine, okuthuthukiswa ngezithasiselo ezengeziwe ezivimbela ilangabi. Lawa ma-compound ahlangabezana nezindinganiso eziqinile njenge-IEC 60332-1-2, UL VW1, kanye ne-E84 (inkomba yokusabalala kwelangabi <25, inkomba ethuthukiswe yintuthu <50).
Izicelo:Njengoba isetshenziswa kakhulu ezindaweni ezinobungozi obukhulu njengezikhungo zedatha, imigudu, izindiza, izinqola zesitimela, kanye nezakhiwo zomphakathi, izintambo ze-PVC kanye nezintambo ezincishisiwe zibalulekile ekunciphiseni izingozi ezihlobene nomusi kanye nentuthu enobuthi uma kwenzeka umlilo.
Izinselele Ezivamile Zokucubungula kanye Nezixazululo Zezintambo Ze-PVC Ezinentuthu Ephansi Nezinhlanganisela Zekhebula
Ukucubungula amakhemikhali e-PVC anentuthu encane kuhilela ukuphatha izinselele eziningi, ikakhulukazi ngenxa yokwakheka kwawo okuyinkimbinkimbi. Ngezansi, sixoxa ngezinye zezinkinga zokucubungula ezivame kakhulu kanye nezixazululo zazo:
1. Okuqukethwe Okugcwala Kakhulu Okuholela Ekuhambeni Okubi Nokushibilika Okuphezulu
Inselele:Ukuze kufezwe izakhiwo eziphansi zomusi, ama-compound e-PVC avame ukuqukatha amazinga aphezulu ezigcwalisi ezingaphili njenge-aluminium trihydrate (ATH) noma i-magnesium hydroxide (Mg(OH)₂) — ngokuvamile isisindo esingu-20-60%. Nakuba lawa ma-filler ehlisa umusi nelangabi, angandisa i-viscosity, anciphise ukugeleza kwamanzi, futhi abangele ukuguguleka kwemishini.
Izixazululo:
Faka izinsiza zokucubungula ezifana nokugcoba kwangaphakathi/kwangaphandle (isb., i-calcium stearate, ama-polyethylene waxes, nomaizithasiselo ze-silicone) ku-0.5-2.0 phr ukuze kwehliswe ukuchachamba nokuthuthukisa ukugeleza.
Sebenzisa izikhumuli ze-extruder ezinesilinganiso se-L/D esiphezulu ukuze uthuthukise ukuxubana nokusabalala kokugcwalisa.
Sebenzisa izinhlelo zokuxova nge-conical force feeding ukuqinisekisa ukuthi i-combine iyafana.
Khetha izigcwalisi ezinobukhulu bezinhlayiya ezilawulwayo kanye nokwelashwa kobuso ukuze uthuthukise ukuhambisana nokunciphisa ukuguguleka.
2. Ukuzinza Kokushisa
Inselele:I-PVC ingawohloka ngesikhathi sokucubungula, ikakhulukazi uma igcwele kakhulu futhi ithwala amalangabi amaningi, ikhipha igesi ye-hydrogen chloride (HCl) eholela ekuwohlokeni kwezinto, ekushintsheni kombala, kanye nasekugqwaleni kwemishini.
Izixazululo:
Faka izinto zokuqinisa ukushisa ezifana nezinzinzi ezisekelwe ku-calcium/zinc ku-2-4 phr ukuze unciphise i-HCl futhi uvimbele ukubola.
Sebenzisa uwoyela wesoya ofakwe i-epoxidized (ESO) njengesithambisi-ndlela sokuthuthukisa ukuzinza kokushisa kanye nokukhanya kwelanga.
Lawula amazinga okushisa okucubungula ngokunembile (160-190°C) ukuze ugweme ukushisa ngokweqile.
Faka ama-phenolic antioxidants (isib., i-Bisphenol A ku-0.3-0.5%) ukuze uthuthukise ukumelana nokuguga ngesikhathi sokucubungula.
3. Ukufuduka kwe-Plasticizer
Inselele:Ama-plasticizer asetshenziselwa ukuthuthukisa ukuguquguquka angahamba ngaphansi kokushisa okuphezulu (isb., ezikhungweni zedatha), okuholela ekuqongeleleni kwezinsalela ezingaphazamisa ukudluliswa kwesignali noma zinciphise ubude besikhathi sekhebula.
Izixazululo:
Sebenzisa ama-plasticizer e-polymer angafuduki esikhundleni sama-monomeric (isb., i-DOP, i-DINP) ukuze unciphise ukufuduka.
Yakha amafomula e-plenum “angenawo uketshezi”, njengoba kwasungulwa yi-OTECH, ukuvimbela ukufuduka kwe-plasticizer ezindaweni ezishisa kakhulu.
Khetha ama-plasticizer afana ne-TOTM, anokuguquguquka okuncane futhi afaneleka kakhulu ekusetshenzisweni kwezinga lokushisa eliphezulu.
4. Ukulinganisela Ukumelana Nokushisa Komlilo Nokucindezelwa Komusi
Inselele:Ukwandisa ukubambezeleka komlilo ngezithasiselo ezifana ne-antimony trioxide (3-5%) noma ama-compounds ane-brominated (12-15%) kungandisa ukukhishwa kwentuthu, okwenza kube nzima ukulinganisela zombili lezi zakhiwo. Ngokufanayo, izithasiselo ezifana ne-calcium carbonate zinganciphisa umusi kodwa zingase zehlise inkomba ye-oxygen, zithinte ukubambezeleka komlilo.
Izixazululo:
Sebenzisa inhlanganisela ye-synergistic flame retardant (isb., i-ATH ene-zinc borate) ukuze uthuthukise kokubili ukuvinjelwa komlilo kanye nokucindezela intuthu. I-ATH, isibonelo, ikhipha umhwamuko wamanzi ukuze uphazamise ukusha futhi yakhe ungqimba lwe-char oluvikelayo, olunciphisa intuthu.
Nciphisa umthwalo we-CaCO₃ ube ngu-20-40 phr ukuze uthole ibhalansi phakathi kwezindleko, ukucindezela intuthu, kanye nokuphelelwa amandla komlilo, njengoba inani elikhulu linganciphisa inkomba ye-oxygen.
Hlola amafomula e-PVC axhumeka ngemisebe, njenge-PVC exhumeke ngemisebe, ukuze uthuthukise ukubambezeleka komlilo ngaphandle kokuthembela kakhulu ezithasiselweni ze-halogenated.
5. Ukucutshungulwa kanye nekhwalithi yobuso
Inselele:Ukugcwalisa okuphezulu kanye nokuqukethwe okungeziwe kungaholela ekuqedeni okungekuhle kobuso, ukuvuza kwamanzi, kanye nokukhishwa okungalingani, okuthinta ukubukeka nokusebenza komkhiqizo wekhebula lokugcina.
Izixazululo:SebenzisaI-SILIKE silicone Powder LYSI-100ALokhuisithasiselo esisekelwe ku-siliconeisetshenziswa kabanzi njenge-isithasiselo sokucubungula amafutha esisebenzayokwezinhlelo ze-resin ezihambisana ne-PVC ukuthuthukisa izakhiwo zokucubungula kanye nekhwalithi yobuso. Njengokugeleza okungcono kwe-resin, ukugcwaliswa nokukhululwa kwesikhunta, i-torque encane ye-extruder, kanye ne-coefficient ephansi yokungqubuzana, ukumelana okukhulu kwe-mar, kanye nokuklwebheka…
1) Izintambo ze-PVC ezikhipha umusi ophansi kanye nezintambo: ukukhishwa okuzinzile, ukucindezela okuncane kokushisa, ubuso obubushelelezi bezintambo kanye nezintambo.
2) Intambo nekhebula le-PVC elinobuhixihixi obuphansi: I-Coefficient Ephansi Yokubhidliza, umuzwa obushelelezi ohlala isikhathi eside.
3) Umkhiqizo we-PVC omelana nokuklwebheka: Ongaklwebheki, njengakuma-shutter e-PVC.
4) Amaphrofayili e-PVC: ukugcwaliswa okungcono kwesikhunta nokukhululwa kwesikhunta, akukho flash yesikhunta.
5) Ipayipi le-PVC: isivinini sokukhipha esisheshayo, i-COF encishisiwe, ukushelela kwendawo okuthuthukisiwe, kanye nezindleko ezilondoloziwe.
Uma ubhekene nezinselele ngokucubungula i-PVC compound kanye nokukhubazeka kobuso, noma ubhekene nobunzima bokucubungula ucingo lwe-PVC kanye nekhebula okungasebenzisi umusi omningi, zamaI-LYSI-100A Silicone Powder yokukhipha okubushelelezi nokusebenza kahle okuphezulu.
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:
Thuthukisa Ikhwalithi Yomphezulu Kuma-PVC Angenamusi Ophansi
Thuthukisa i-PVC Cable Extrusion nge-Silicone Powder
Usizo Lokucubungula Ama-PVC Compounds Ukunciphisa Ukungqubuzana
Khulisa Ukusebenza Kahle Kokunwetshwa Kwezintambo ze-PVC kanye Nezintambo
Thuthukisa Ukugeleza Kwe-PVC Compound Ukuze Kusheshe Kukhishwe I-Extrusion
Izithasiselo ze-Silicone zokuthuthukisa ukusebenza kahle kokucubungula kwe-PVC
Khulisa Ukusebenza Kwekhebula Le-PVC Elihlanganisiwe Nge-Silicone Masterbatch
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Isikhathi sokuthunyelwe: Meyi-09-2025
