(1)Kayan Rufe Hayaƙi Mai Haɗi Mai Ƙasa da Haɗin Halogen Polyethylene (XLPE):
Ana samar da kayan rufin XLPE ta hanyar haɗa polyethylene (PE) da ethylene vinyl acetate (EVA) a matsayin matrix na tushe, tare da ƙarin abubuwa daban-daban kamar masu hana harshen wuta mara halogen, man shafawa, antioxidants, da sauransu, ta hanyar haɗawa da kuma yin pelletizing. Bayan sarrafa hasken rana, PE yana canzawa daga tsarin kwayoyin halitta mai layi zuwa tsari mai girma uku, yana canzawa daga kayan thermoplastic zuwa filastik mai narkewa mara narkewa.
Kebul ɗin rufin XLPE suna da fa'idodi da yawa idan aka kwatanta da na yau da kullun na thermoplastic PE:
1. Inganta juriya ga nakasar zafi, haɓaka halayen injina a yanayin zafi mai yawa, da kuma inganta juriya ga fashewar damuwa ta muhalli da tsufar zafi.
2. Inganta daidaiton sinadarai da juriyar sinadarai, rage kwararar sanyi, da kuma kiyaye halayen lantarki. Zafin aiki na dogon lokaci na iya kaiwa 125°C zuwa 150°C. Bayan sarrafa haɗin gwiwa, za a iya ƙara zafin da'ira na PE zuwa 250°C, wanda ke ba da damar samun ƙarfin ɗaukar wutar lantarki mafi girma ga kebul masu kauri iri ɗaya.
3. Kebulan XLPE masu rufi suma suna nuna kyawawan halaye na injiniya, hana ruwa shiga, da kuma juriya ga radiation, wanda hakan ya sa suka dace da aikace-aikace daban-daban, kamar wayoyi na ciki a cikin kayan lantarki, wayoyi masu motsi, wayoyi masu haske, wayoyi masu sarrafa siginar ƙarancin wutar lantarki na mota, wayoyi masu amfani da jirgin ƙasa, wayoyi masu amfani da jirgin ƙasa, wayoyi masu haƙar ma'adinai masu kyau ga muhalli, wayoyi masu jiragen ruwa, wayoyi masu daraja ta 1E don tashoshin wutar lantarki na nukiliya, wayoyi masu amfani da famfo masu nutsewa, da wayoyi masu watsa wutar lantarki.
Umarnin da ake amfani da su a yanzu a fannin ƙirƙirar kayan rufin XLPE sun haɗa da kayan rufin kebul na wutar lantarki na PE masu haɗin kai, kayan rufin sama na PE masu haɗin kai, da kayan rufin polyolefin masu hana harshen wuta.
(2)Kayan Rufe Polypropylene Mai Haɗin Kai (XL-PP):
Polypropylene (PP), a matsayin filastik gama gari, yana da halaye kamar nauyi mai sauƙi, wadataccen tushen albarkatun ƙasa, inganci mai kyau, kyakkyawan juriya ga lalata sinadarai, sauƙin ƙera shi, da sake amfani da shi. Duk da haka, yana da iyakoki kamar ƙarancin ƙarfi, rashin juriya ga zafi, babban nakasar raguwa, rashin juriya ga rarrafe, rashin karyewar yanayin zafi, da rashin juriya ga zafi da tsufar iskar oxygen. Waɗannan iyakoki sun takaita amfani da shi a aikace-aikacen kebul. Masu bincike suna aiki don gyara kayan polypropylene don inganta aikinsu gabaɗaya, kuma polypropylene mai haɗin gwiwa da aka gyara ta hanyar hasken rana (XL-PP) ya shawo kan waɗannan iyakoki yadda ya kamata.
Wayoyin XL-PP masu rufi za su iya cika gwajin harshen wuta na UL VW-1 da ƙa'idodin waya na UL mai ƙimar 150°C. A aikace-aikacen kebul, galibi ana haɗa EVA da PE, PVC, PP, da sauran kayan don daidaita aikin layin rufin kebul.
Ɗaya daga cikin rashin amfani da PP mai haɗin gwiwa ta hanyar radiation shine cewa yana da alaƙa da gasa tsakanin ƙirƙirar ƙungiyoyin ƙarshe marasa cikawa ta hanyar halayen lalacewa da halayen haɗin gwiwa tsakanin ƙwayoyin da aka ƙarfafa da manyan ƙwayoyin cuta marasa ƙwayoyin cuta. Bincike ya nuna cewa rabon lalacewa zuwa halayen haɗin gwiwa a cikin radiation ta hanyar ...
(3) Kayan Rufe Ethylene-Vinyl Acetate Copolymer (XL-EVA) Mai Haɗin Kai:
Yayin da buƙatar amincin kebul ke ƙaruwa, haɓakar kebul masu haɗin giciye marasa halogen waɗanda ba sa hana wuta ta hanyar halogen ya girma cikin sauri. Idan aka kwatanta da PE, EVA, wanda ke shigar da monomers na vinyl acetate cikin sarkar kwayoyin halitta, yana da ƙarancin lu'ulu'u, wanda ke haifar da ingantaccen sassauci, juriya ga tasiri, dacewa da cikawa, da halayen rufe zafi. Gabaɗaya, halayen resin EVA sun dogara ne akan abubuwan da ke cikin monomers na vinyl acetate a cikin sarkar kwayoyin halitta. Babban abun ciki na vinyl acetate yana haifar da ƙaruwar bayyananniyar haske, sassauci, da tauri. Resin EVA yana da kyakkyawan jituwa da cikawa da haɗin giciye, wanda hakan ya sa ya shahara a cikin kebul masu haɗin giciye marasa halogen waɗanda ba sa haɗa wuta ta hanyar halogen.
Ana amfani da resin EVA mai dauke da sinadarin vinyl acetate na kimanin kashi 12% zuwa 24% a cikin rufin waya da kebul. A aikace-aikacen kebul na gaske, ana haɗa EVA da PE, PVC, PP, da sauran kayan don daidaita aikin layin rufin kebul. Abubuwan EVA na iya haɓaka haɗin giciye, inganta aikin kebul bayan haɗin giciye.
(4) Kayan Rufe Ethylene-Propylene-Diene Monomer (XL-EPDM) Mai Haɗin Kai:
XL-EPDM wani terpolymer ne da ya ƙunshi ethylene, propylene, da monomers na diene marasa haɗin kai, waɗanda aka haɗa ta hanyar hasken rana. Kebul ɗin XL-EPDM sun haɗa fa'idodin kebul ɗin polyolefin da kebul ɗin roba gama gari:
1. Sassauci, juriya, rashin mannewa a yanayin zafi mai yawa, juriyar tsufa na dogon lokaci, da juriya ga yanayi mai tsauri (-60°C zuwa 125°C).
2. Juriyar Ozone, juriyar UV, aikin kariya daga iskar lantarki, da kuma juriya ga lalata sinadarai.
3. Juriya ga mai da sinadarai masu narkewa kamar na robar chloroprene na yau da kullun. Ana iya samar da shi ta amfani da kayan aikin sarrafa fitar da zafi na yau da kullun, wanda hakan ke sa ya zama mai araha.
Kebul ɗin XL-EPDM masu rufi suna da nau'ikan aikace-aikace iri-iri, waɗanda suka haɗa da amma ba'a iyakance ga kebul na wutar lantarki mai ƙarancin wutar lantarki ba, kebul na jiragen ruwa, kebul na kunna motoci, kebul na sarrafawa don na'urorin sanyaya daki, kebul na wayar hannu, kayan haƙa, da na'urorin likitanci.
Babban rashin amfanin kebul na XL-EPDM sun haɗa da rashin juriyar tsagewa da kuma rashin ƙarfin mannewa da kuma mannewa, wanda zai iya shafar sarrafawa daga baya.
(5) Kayan Rufin Rubber na Silicone
Robar silicone tana da sassauci da juriya mai kyau ga ozone, fitar da iskar corona, da harshen wuta, wanda hakan ya sa ta zama kayan da ya dace don rufin lantarki. Babban amfaninta a masana'antar lantarki shine wayoyi da kebul. Wayoyin roba na silicone da kebul sun dace musamman don amfani a cikin yanayi mai zafi da wahala, tare da tsawon rai mai yawa idan aka kwatanta da kebul na yau da kullun. Aikace-aikacen gama gari sun haɗa da injinan zafi mai zafi, na'urorin canza wutar lantarki, janareto, kayan lantarki da lantarki, kebul na kunna wuta a cikin motocin sufuri, da kebul na wutar lantarki da sarrafawa na ruwa.
A halin yanzu, kebul na roba mai rufi da silicone yawanci ana haɗa su ta amfani da matsin lamba na yanayi tare da iska mai zafi ko tururi mai ƙarfi. Akwai kuma bincike da ake ci gaba da yi kan amfani da hasken wutar lantarki don robar silicone mai haɗi, kodayake bai zama ruwan dare ba a masana'antar kebul. Tare da ci gaban da aka samu kwanan nan a fasahar haɗa hasken rana, yana ba da madadin mafi arha, mafi inganci, kuma mai kyau ga muhalli don kayan rufe robar silicone. Ta hanyar hasken wutar lantarki ko wasu hanyoyin radiation, ana iya cimma ingantaccen haɗin murfin robar silicone yayin da ake ba da damar sarrafawa kan zurfin da matakin haɗin giciye don biyan takamaiman buƙatun aikace-aikace.
Saboda haka, amfani da fasahar haɗa hasken rana don kayan rufe robar silicone yana da babban alhaki a masana'antar waya da kebul. Ana sa ran wannan fasaha za ta rage farashin samarwa, inganta ingancin samarwa, da kuma taimakawa wajen rage mummunan tasirin muhalli. Bincike da ci gaba na gaba na iya ƙara haifar da amfani da fasahar haɗa hasken rana don kayan rufe robar silicone, wanda hakan zai sa su zama masu amfani sosai don kera wayoyi da kebul masu zafi da aiki mai yawa a masana'antar lantarki. Wannan zai samar da ingantattun mafita masu dorewa ga fannoni daban-daban na aikace-aikace.
Lokacin Saƙo: Satumba-28-2023