PVC glue, ekyesiiga eky’enjawulo ekikoleddwa mu ngeri ey’enjawulo okusiba ebintu bya polyvinyl chloride (PVC), kirina omugaso ogw’ekikugu ogutayinza kukyusibwa mu bintu ng’okulongoosa ebintu mu buveera, okuyooyoota ebizimbe, n’okuddaabiriza amakolero. Ebintu byayo eby’ekikugu okusinga byeyolekera mu bintu bino wammanga:
Okusinziira ku ndowooza y’eddagala, glue za PVC ez’omutindo ogwa waggulu-zitera okukozesa ensengeka ezisinziira ku solvent- oba ezikola. Ebintu ebisinziira ku kizimbulukusa-bikozesa ebizimbulukusa ebiramu nga dichloromethane ne cyclohexanone nga matrix yaabwe, ne bisaanuusa molekyu za PVC kungulu okukola oluwuzi lw’enkyukakyuka olunyirira. Ate ebizigo ebikola (reactive adhesives), birimu polyurethane oba acrylate prepolymers eziyita mu cross-linking mu nkola y’okuwonya, ne zikola ensengekera y’omukutu ey’ebitundu bisatu-. Ensengeka eno ey’eddagala ey’enjawulo ebasobozesa okukwatagana n’embeera z’emirimu ez’enjawulo.
Mu nkola y’okusiba, PVC glue eraga okukwatagana kw’ebintu okulungi ennyo. Ebiwandiiko eby’okugezesa biraga nti glue ez’omutindo gw’ekikugu-ziraga amaanyi g’okusala aga 5-8 MPa n’amaanyi g’okusekula agasukka 3 N/mm ku PVC, nga gasinga nnyo omulimu gw’ebisiiga ebya bulijjo ebikozesebwa byonna. Enkola yaabwe ey’enjawulo ey’ekirungo ekifukirira eyingira mangu mu nsengekera ya microporous ey’okungulu kwa PVC, okukakasa okukwatagana okwesigika ne ku bifo ebiseeneekerevu oba ebirimu amafuta amatono. Ebintu ebimu ebikyusiddwa era biwa obugumu obuziyiza ebbugumu (obutebenkevu okuva ku -20℃okutuuka ku 80℃) n’okugumira eddagala.
Mu nsonga z’okukozesa eby’ekikugu, ebisiiga ebya PVC eby’omulembe bituuse ku nkulaakulana ey’amaanyi mu kulongoosa enkola. Ebintu ebikala amangu birina obudde bwa tack-obw’eddembe obw’eddakiika 3-5, nga obudde obujjuvu obw’okuwona tebusukka ssaawa 24. Ebirungo ebiwunya obutono-bikuuma emiwendo gya VOC wansi wa 50g/L, nga bigoberera amateeka ga EU REACH. Ku kusiba payipu za PVC eziriko ebisenge ebinene-ebisenge oba profiles, ebisiiga ebiyitibwa thixotropic adhesives bikoleddwa. Okwongerako nano-thickeners kisobozesa okukozesa okutuufu, okugendereddwamu era kwewala obulema mu kutambula.
Kikulu okumanya nti okulonda ekyesiiga kya PVC kulina okukwatagana obulungi n’okukozesebwa okwetongodde. Ebisiiga ebisinziira ku solvent-ebirina enkola ya socket-ne-spigot joint bisemba okugatta payipu za PVC enkalu, ate ebisiiga ebikyusiddwa elastomer- bye bisinga okwettanirwa okusiba firimu engonvu. Olw’obwetaavu bw’okukuuma obutonde obweyongera, ebizigo bya PVC ebikolebwa mu mazzi-bifuuka ekifo eky’okunoonyereza n’okukulaakulanya. Okuleeta okusaasaana kwa polyurethane okwesigamiziddwa ku mazzi-kikendeeza nnyo ku buzibu bw’obutonde ate nga kikuuma amaanyi g’enkolagana.
Enkulaakulana mu tekinologiya eriwo kati eraga nti ebizigo bya PVC ebigezi (nga temperature-sensitive curing ne UV-triggered crosslinking) bigenda mu maaso mu laboratory era biyinza okuvuga enkola y’okukuŋŋaanya ebintu bya PVC okutuuka ku bulungibwansi n’obutuufu. Ebiyiiya bino ebya tekinologiya bikyagenda mu maaso n’okunyweza ekifo ekikulu eky’ebizigo bya PVC mu mulimu gw’okulongoosa obuveera.