Ugwebu lweplastiki lunokwahlulwa lube ziinkqubo ezintathu: ukwakheka kweenuclei zeqamza, ukwandiswa kweenuclei zamaqamza, kunye nokuqina kwemizimba yogwebu. Kumaphepha e-PVC amagwebu, ukwandiswa kwe-bubble core kunempembelelo eqinisekileyo kumgangatho wephepha le-foam. I-PVC yeyeemolekyuli zetsheyini ezithe tye, ezinamatyathanga amafutshane emolekyuli kunye namandla aphantsi anyibilikayo. Ngethuba lenkqubo yokwandiswa kwebhola kwi-bubbles, ukunyibilika akwanelanga ukugubungela ama-bubbles, kwaye i-gas ijwayele ukuphuphuma kwaye idibanise kwiibhubhu ezinkulu, ukunciphisa umgangatho wemveliso yamaphepha e-foam.
Eyona nto iphambili ekuphuculeni umgangatho wamaphepha amagwebu ePVC kukunyusa amandla anyibilikayo ePVC. Ukusuka kuhlalutyo lweempawu zokusetyenzwa kwezixhobo zepolymer, kukho iindlela ezahlukeneyo zokuphucula amandla okunyibilika kwePVC, phakathi apho eyona ndlela isebenzayo kukongeza izongezo zokuphucula amandla okunyibilika kunye nokunciphisa ubushushu bokusebenza. I-PVC iyeyezixhobo ze-amorphous, kwaye amandla okunyibilika ayancipha ngokunyuka kweqondo lokushisa lokunyibilika. Ngakolunye uhlangothi, amandla okunyibilika ayanda ngokuhla kweqondo lokushisa elinyibilikayo, kodwa umphumo wokupholisa ulinganiselwe kwaye udlala indima yokuncedisa kuphela. Iiarhente zokulungisa i-ACR zinefuthe lokuphucula amandla okunyibilika, phakathi kwazo abalawuli begwebu ngabona basebenzayo. Amandla okunyibilika ayanda ngokunyuka komxholo wolawulo olugwebu. Ngokubanzi, nje ukuba isikrufu sinokusasazwa okwaneleyo kunye nekhono lokuxuba, ukongeza i-viscosity ephezulu yokulawula amagwebu kunempembelelo ebalulekileyo ekuphuculeni amandla okunyibilika. Indima yokuncedisa ekusetyenzweni kumaphepha e-PVC amagwebu: izixhobo zokusetyenzwa kwe-ACR zikhuthaza ukunyibilika kwe-PVC, ukuphucula ukuguda komphezulu, ukuphucula ukunyibilika kokunyibilika, kunye nokwandisa ukunyibilika kunye nokomelela. Iluncedo ekusongeleni amaqamza kunye nokuthintela ukuwa kweqamza. Ubunzima bemolekyuli kunye nedosi yokulawula amagwebu anempembelelo enkulu kuxinaniso lwamaphepha amagwebu: njengoko ubunzima bemolekyuli bukhula, amandla e-PVC anyibilika ayanda, kwaye ukuxinana kwamaphepha amagwebu kunokuncipha, okunesiphumo esifanayo nokwandisa umbane. umthamo wabalawuli. Kodwa esi siphumo asinalo ubudlelwane bomgca. Ukuqhubela phambili ukwandisa ubunzima be-molecular okanye i-dosage ayinayo impembelelo ebaluleke kakhulu ekunciphiseni ukuxinana, kwaye ubuninzi buya kuba yinto eqhubekayo.
Kukho unxulumano olubalulekileyo phakathi kwabalawuli abalugwebu kunye neearhente ezikhupha ugwebu. Kukho indawo yokulinganisa phakathi koxinano lwamaphepha e-foam kunye nezilawuli ezinogwebu. Ngaphandle kweli nqanaba lokulinganisa, ukuxinwa kwamaphepha e-foam akuchatshazelwa ngumxholo we-foam agents kwaye uhlala uhlala. Oko kukuthi, ukwandisa inani le-ejenti yogwebu ayikwazi ukunciphisa ubuninzi. Isizathu salo mcimbi kukuba phantsi komlinganiselo othile wabalawuli be-foam, amandla okunyibilika kwe-PVC anqunyelwe, kwaye igesi eninzi ingabangela ukuwa okanye ukudibanisa kweeseli ze-foam.
Ixesha lokuposa: Mar-28-2024
