Umlawuli we-PVC foaming unokusinceda sizise iipropati ezilungileyo ngexesha lokuveliswa nokucutshungulwa kwe-PVC, nto leyo evumela ukuba iimpendulo zethu ziqhubeke ngcono kwaye zivelise iimveliso esizifunayo. Nangona kunjalo, kufuneka siqwalasele amanqaku aphambili olawulo lwemizi-mveliso xa siyenza, ukuze iimpendulo zethu ziqhubeke ngcono.
Ukubumba i-plastic foam ye-PVC foam regulator yahlulwe ngokweenkqubo ezintathu: ukwenziwa kwe-bubble core, ukwandiswa kwe-bubble core, kunye nokuqina komzimba we-foam. Kwiphepha le-PVC foam elinee-agents ze-chemical foam ezongeziweyo, ukwandiswa kwe-bubble nuclei kunempembelelo ebalulekileyo kumgangatho wephepha le-foam. I-PVC yeyee-molecules ze-straight chain ezinee-molecular chains ezimfutshane kunye namandla aphantsi okunyibilika. Ngexesha lenkqubo yokwandiswa kwe-bubble core ibe yi-bubbles, ukunyibilika akwanelanga ukugubungela ama-bubbles, kwaye igesi ithambekele ekuphuphumeni kwaye idibane ibe ngama-bubbles amakhulu, okunciphisa umgangatho wemveliso yeephepha le-foam.
Eyona nto iphambili ekuphuculeni umgangatho wee-PVC foaming modifiers kukuphucula amandla okunyibilika kwePVC. Ukusuka kuhlalutyo lweempawu zokucubungula izinto zepolymer, kukho iindlela ezahlukeneyo zokuphucula amandla okunyibilika kwePVC, kodwa eyona ndlela ilungileyo kukongeza izongezo eziphucula amandla okunyibilika nokunciphisa ubushushu bokucubungula. I-PVC yeyezinto ezingabonakaliyo, kwaye amandla ayo okunyibilika ayancipha ngobushushu obukhulayo bokunyibilika. Ngokwahlukileyo koko, amandla ayo okunyibilika ayanda ngobushushu obuphantsi bokunyibilika, kodwa isiphumo sokupholisa silinganiselwe kwaye sisebenza njengomsebenzi oncedisayo kuphela. Zonke iiarhente zokucubungula i-ACR zinefuthe lokuphucula amandla okunyibilika, ayanda ngokwanda komxholo wolawulo lwe-foaming. Ngokubanzi, ukuba nje isikrufu sinamandla aneleyo okusasaza nokuxuba, ukongeza ii-high viscosity foaming modifiers kunefuthe elibalulekileyo ekuphuculeni amandla okunyibilika.
Oku kungasentla kukwazisa ngokufutshane ngemiba ephambili yolawulo lwenkqubo ye-foam kwiimodifier ze-PVC foam. Xa sizivelisa, kufuneka siqwalasele ukwakheka, ukwandiswa, kunye nokunyangwa kweenuclei zazo ze-bubble kwaye sizilawule ngokungqongqo.
Ixesha leposi: Sep-07-2024
