PVC glue, inonamira yakasarudzika yakanyatsogadzirirwa kubatanidza polyvinyl chloride (PVC) zvinhu, inobata isingadzokerike kukosha kwehunyanzvi muminda yakadai sekugadzira chigadzirwa chepurasitiki, kushongedza kwekuvaka, uye kugadzirisa kwemaindasitiri. Hunhu hwayo hwehunyanzvi hunoratidzwa zvakanyanya mune zvinotevera zvinhu:
Kubva pakuona kwekemikari,-zvemhando yepamusoro PVC glues anowanzo shandisa solvent{{1}based or reactive formulations. Solvent{{3}based products zvinoshandisa organic solvents se dichloromethane ne cyclohexanone sematrix avo, zvichinyungudutsa mamorekuru ePVC kuti aite viscous transition layer. Zvekunamira zvinobatika, kune rumwe rutivi, zvine polyurethane kana acrylate prepolymers anopindirana-linking panguva yekurapa, achigadzira matatu{6}}dimensional network structure. Iyi dhizaini yakasarudzika yemakemikari inovatendera kuti vagadzirise kune akasiyana mamiriro ekushanda.
Panyaya yekushanda kwekubatanidza, PVC glue inoratidza kuenderana kwezvinhu. Mashoko ekuedza anoratidza kuti-giredhi guruu rinoratidza simba rekugera rinosvika 5-8 MPa uye simba rekusvuura rinopfuura 3 N/mm paPVC, kudarika kushanda kwezvinonamira zvechinangwa chese. Yavo nyanzvi yekunyorovesa agent maumbirwo anokurumidza kupinda mukati meiyo microporous chimiro chePVC pamusoro, ichiva nechokwadi chekubatana kwakavimbika kunyangwe pane yakatsetseka kana isina mafuta substrates. Zvimwe zvigadzirwa zvakagadziridzwa zvinopawo tembiricha kuramba (yakagadzikana kubva -20 dhigirii kusvika 80 dhigirii) uye makemikari kuramba.
Panyaya yehunyanzvi hwekushandisa, maPVC anonamira emazuva ano akawana budiriro yakakura mukugadzirisa. Kurumidza-kuomesa zvinhu zvine tack{2}nguva yemahara yemaminetsi matatu-5, nenguva yekupora isingapfuure maawa makumi maviri nemana. Mishonga-yakaderera yemunhuwi inochengeta mwero weVOC uri pasi pe50g/L, zvichifambirana nemirairo yeEU REACH. Zvekubatanidza makobvu{11}mapaipi ePVC ane madziro kana ma profiles, zvinonamira zvethixotropic zvakagadzirwa. Kuwedzerwa kwe nano-thickeners kunobvumira kunyatsoita, kwakanangwa kushandiswa uye kunodzivirira kukanganisa kuyerera.
Izvo zvakakosha kuti uzive kuti kusarudzwa kwePVC adhesive kunofanirwa kunyatsoenderana kune chaiyo application. Solvent{{1}based adhesives ine socket-uye-spigot joint process inokurudzirwa kuti ibatanidze mapaipi akaomarara ePVC, ukuwo elastomer-anamidzira akagadziridzwa achidiwa pakubatanidza mafirimu akapfava. Nekuwedzera kuri kuita kuchengetedzwa kwezvakatipoteredza, mvura{{6}zvinonamira zvePVC zvave kuita nzvimbo yekutsvaga nekusimudzira. Kuiswa kwemvura{{8}based polyurethane dispersions kunoderedza zvakanyanya kukanganisa kwezvakatipoteredza uku uchichengetedza simba rebhondi.
Ikozvino kusimukira kweruzivo rwemichina kunoratidza kuti zvine hungwaru zvinonamira zvePVC (zvakadai setembiricha-sensitive cure uye UV-triggered crosslinking) zviri kufambira mberi murabhoritari uye zvinogona kufambisa kuunganidzwa kwezvigadzirwa zvePVC kuti zvinyatsoshanda uye nemazvo. Aya magadzirirwo etekinoroji anoramba achibatanidza chinzvimbo chakakosha chePVC adhesives muindasitiri yekugadzira mapurasitiki.