Manne PVC, wani manne na musamman wanda aka ƙera don haɗa kayan polyvinyl chloride (PVC), yana riƙe ƙimar fasaha maras ma'amala a cikin filayen kamar sarrafa samfuran filastik, kayan ado na gine-gine, da kiyaye masana'antu. Halayen fasahansa suna bayyana da farko a cikin abubuwa masu zuwa:
Daga mahangar sinadarai, mannen PVC masu inganci{0} yawanci suna amfani da kaushi{1} na tushen ko mai amsawa. Kayayyakin narke{3} suna amfani da abubuwan kaushi na halitta kamar dichloromethane da cyclohexanone azaman matrix ɗin su, suna narkar da kwayoyin saman PVC don samar da madauri mai ɗanɗano. Adhesives masu amsawa, a gefe guda, sun ƙunshi polyurethane ko acrylate prepolymers waɗanda ke fuskantar giciye - haɗin gwiwa yayin aikin warkewa, suna samar da tsarin cibiyar sadarwa mai girma uku{{6}. Wannan bambance-bambancen ƙirar sinadarai yana ba su damar dacewa da yanayin aiki iri-iri.
Dangane da aikin haɗin gwiwa, mannen PVC yana nuna kyakkyawan daidaiton kayan aiki. Bayanan gwaji sun nuna cewa ƙwararrun ƙwararrun manne ({1}) suna nuna ƙarfin juzu'i na 5{4}}8 MPa da ƙarfin kwasfa da ya wuce 3 N/mm akan PVC, wanda ya zarce aikin mannewa na yau da kullun. Ƙwararren wakilin su na wetting da sauri yana shiga cikin tsarin microporous na farfajiyar PVC, yana tabbatar da haɗin gwiwa mai dogara ko da akan santsi ko sassauƙa mai laushi. Wasu samfuran da aka gyaggyarawa kuma suna ba da juriya na zafin jiki (tsayayyen daga -20 digiri zuwa digiri 80) da juriya na sinadarai.
Dangane da aikace-aikacen fasaha, mannen PVC na zamani sun sami ci gaba mai mahimmanci a cikin haɓakawa. Sauƙaƙe{1}}kayayyakin bushewa suna da ɗan gajeren lokaci{2}}lokacin kyauta na mintuna 3-, tare da cikakken lokacin magani bai wuce awanni 24 ba. Ƙarƙashin ƙamshi - yana kiyaye matakan VOC ƙasa da 50g/L, suna bin ƙa'idodin EU REACH. Don ɗaure mai kauri{11}} bututun PVC mai bango ko bayanan martaba, an ƙera mannen thixotropic. Ƙarin nano-thickeners yana ba da izini don daidaitaccen aikace-aikacen da aka yi niyya kuma yana guje wa lahani masu gudana.
Yana da mahimmanci a lura cewa zaɓin mannen PVC dole ne a daidaita shi da takamaiman aikace-aikacen. Solvent{1} tushen adhesives tare da soket{2}} da - tsari na haɗin gwiwa ana ba da shawarar don haɗa bututun PVC mai ƙarfi, yayin da elastomer{4}} gyare-gyaren adhesives an fi son haɗa fina-finai masu laushi. Tare da haɓaka buƙatun kariyar muhalli, ruwa{6} tushen PVC adhesives suna zama wurin bincike da ci gaba. Gabatar da ruwa{8} tushen tarwatsewar polyurethane yana rage tasirin muhalli sosai yayin da yake riƙe ƙarfin haɗin gwiwa.
Ci gaban fasaha na yanzu yana nuna cewa mannen PVC masu hankali (kamar zafin jiki{0}}magani mai saurin warkewa da UV{1}}wararrun ƙetare) suna samun ci gaba a cikin ɗakin gwaje-gwaje kuma na iya haifar da tsarin haɗa samfuran PVC zuwa mafi inganci da daidaito. Wadannan sabbin fasahohin na ci gaba da karfafa muhimmin matsayi na adhesives na PVC a cikin masana'antar sarrafa robobi.