I-PVC ivamise ukusetshenziselwa ukugqoka ikhebula likagesi ngenxa yezakhiwo zayo ezinhle kakhulu zokuvikela ugesi kanye ne-dielectric constant.I-PVC ivamise ukusetshenziswa kukhebula le-voltage ephansi (efika ku-10 KV), izintambo zokuxhumana ngocingo, nezintambo zikagesi.
Ukwakhiwa okuyisisekelo kokukhiqizwa kwe-PVC insulation kanye nenhlanganisela yejakhethi yocingo nekhebula ngokuvamile kwakhiwa lokhu okulandelayo:
- I-PVC
- I-Plasticizer
- Isigcwalisi
- I-Pigment
- Ama-Stabilizer kanye nama-co-stabilizers
- Izinto zokugcoba
- Izithasiselo (ama-retardants amalangabi, ama-UV-absorbers, njll.)
Ukukhetha Plasticizer
Ama-Plasticizer ahlala engezwa ku-wire & cable insulation kanye nenhlanganisela yejakhethi ukwandisa ukuguquguquka kanye nokunciphisa ukuqina.Kubalulekile ukuthi i-plasticizer esetshenzisiwe ibe nokuhambisana okuphezulu ne-PVC, ukuguquguquka okuphansi, izici ezinhle zokuguga, futhi ingabi ne-electrolyte.Ngaphandle kwalezi zidingo, ama-plasticizers akhethwa ngezidingo zomkhiqizo oqediwe engqondweni.Isibonelo, umkhiqizo ohloselwe ukusetshenziswa kwangaphandle isikhathi eside ungase udinge i-plasticizer enezimo zezulu ezingcono kunomuntu ongakhetha umkhiqizo wokusetshenziswa kwangaphakathi kuphela.
Inhloso ejwayelekile ye-phthalate esters njengeDOP,I-DINP, futhiI-DIDPzivame ukusetshenziswa njengama-plasticizers ayinhloko ekwakhiweni kwezintambo kanye nezintambo ngenxa yendawo ebanzi yokusetshenziswa, izici ezinhle zemishini, kanye nezakhiwo ezinhle zikagesi.I-TOTMibhekwa njengefaneleka kakhulu izinhlanganisela zokushisa okuphezulu ngenxa yokuguquguquka kwayo okuphansi.Izinhlanganisela ze-PVC ezihloselwe ukusetshenziswa kwezinga lokushisa eliphansi zingenza kangcono ngama-plasticizers afanaI-DOAnomaI-DOSegcina ukuguquguquka kwezinga lokushisa eliphansi kangcono.I-Epoxidized Soy Oil (ESO)ivamise ukusetshenziswa njenge-co-plasticizer kanye ne-stabilizer, njengoba yengeza ukuthuthukiswa kwe-synergistic of thermal kanye nokuzinza kwesithombe uma kuhlanganiswe nezinzinzisi ze-Ca/Zn noma ze-Ba/Zn.
Ama-Plasticizers embonini yocingo nekhebula ngokuvamile azinziswa nge-phenolic antioxidant ukuze kuthuthukiswe izakhiwo zokuguga.I-Bisphenol A iyi-stabilizer evamile esetshenziswa ebangeni lika-0.3 - 0.5% ngale njongo.
Ama-Filler Asetshenziswa Kakhulu
Ama-filler asetshenziswa ekwakhiweni kwentambo nokwentambo ukuze kwehliswe intengo yekhompiyutha ngenkathi kuthuthukiswa izakhiwo zikagesi noma ezibonakalayo.Ama-fillers angathinta kahle ukudluliswa kokushisa kanye ne-thermal conductivity.I-Calcium carbonate iyisigcwalisi esivame kakhulu kule njongo.Ngezinye izikhathi ama-silica asetshenziswa.
Ama-pigments ku-wire kanye nekhebula
Ama-pigments ayengezwa ukuze anikeze umbala ohlukanisayo kumakhompiyutha.I-TiO2umthwali wombala osetshenziswa kakhulu.
Izinto zokugcoba
Izinto zokugcoba zocingo nekhebula zingaba ngaphandle noma zangaphakathi, futhi zisetshenziselwa ukusiza ekwehliseni ukunamathela kwe-PVC ezindaweni ezishisayo zensimbi zezinto zokusebenza.Ama-Plasticizer ngokwawo angakwazi ukusebenza njenge-lubricant yangaphakathi, kanye ne-Calcium Stearate.Utshwala obunamafutha, ama-wax, upharafini nama-PEG angasetshenziswa ekugcobiseni okwengeziwe.
Izithasiselo Ezivamile Kuzintambo Nekhebula
Izithasiselo zisetshenziselwa ukunikeza izakhiwo ezikhethekile ezidingekayo ekusetshenzisweni kokuphela komkhiqizo, isibonelo, ukuncipha komlilo noma ukumelana nesimo sezulu yilanga noma amagciwane.Ukuncipha komlilo kuyisidingo esivamile ekwakhiweni kwentambo nentambo.Izithasiselo ezifana ne-ATO ziyizinqamuleli zomlilo ezisebenzayo.Ama-Plasticizer asetshenziswa njenge-phosphoric esters angaphinda anikeze izakhiwo ezibushela ilangabi.Izimunca ze-UV zingase zengezwe ukuze zisetshenziswe ngaphandle ukuze kuvinjelwe ukushiswa yilanga.I-Carbon Black iyasebenza ekuvikeleni ukukhanya, kodwa kuphela uma wenza inhlanganisela enombala omnyama noma omnyama.Kumakhompiyutha anemibala egqamile noma esobala, ama-UV-Absorbers asuselwa ku-benzophenone angasetshenziswa.Ama-biocides ayengezwa ukuze kuvikelwe inhlanganisela ye-PVC ekonakalisweni yisikhunta kanye nama-microorganisms.I-OBPA (10′,10′-0xybisphenoazine) ivamise ukusetshenziselwa le njongo futhi ingathengwa kakade isincibilikisiwe ku-plasticizer.
Ukwakhiwa Kwesibonelo
Ngezansi kunesibonelo sesiqalo esiyisisekelo sokwakhiwa kocingo lwe-PVC:
| Ukwakhiwa | I-PHR |
| I-PVC | 100 |
| ESO | 5 |
| I-Ca/Zn noma i-Ba/Zn Stabilizer | 5 |
| Ama-Plasticizers (i-DOP, i-DINP, i-DIDP) | 20 – 50 |
| I-calcium carbonate | 40-75 |
| I-Titanium Dioxide | 3 |
| I-Antimony Trioxide | 3 |
| I-Antioxidant | 1 |
Isikhathi sokuthumela: Jan-13-2023