Umphumela we-cellulose ether ngeplastiki yamahhala ye-shrinkage yodaka

1. Ucwaningo ingemuva lomphumela weI-Cellulose Etherepulasitiki yamahhala yepulasitiki yodaka

UGutare yinto esetshenziswa kabanzi emisebenzini yokwakha, futhi ukuqina kokusebenza kwayo kunomthelela obalulekile kwikhwalithi yezakhiwo. I-shrinkage yamahhala yepulasitiki yinto engase yenzeke ngodaka ngaphambi kokuqina, okuzodala izinkinga ezinjengemifantu kudaka, okuthinta ukuqina kwayo kanye nama-aesthetics. I-Celsulose Ether, njengesengezo esisetshenziswa kakhulu ngodaka, inethonya elibalulekile epulasitiki yokuqothuka kodaka.

2. Umgomo we-cellulose ether unciphisa ukushwabana kwamahhala kodaka

I-Cellulose Ether inokugcinwa okuhle kakhulu kwamanzi. Ukulahleka kwamanzi e-motar kuyisici esibalulekile esiholela ekunciphiseni kwepulasitiki. Amaqembu e-hydroxyl kuma-molecule e-cellulose ether nama-athomu omoya-mpilo kuma-hydrogen bond azokwakha izibopho zama-hydrogen ngama-molecule wamanzi, ngaleyo ndlela anciphise ukulahleka kwamanzi. Isibonelo, kwezinye izifundo, kwatholakala ukuthi ngokwanda komthamo we-cellulose ether, izinga lokulahleka kwamanzi linciphile ngokuqondile. ThandaI-methyl hydroxypropypropyllyllylllop ether (HPMC), lapho umthamo ungo-0,1-0.4 (ingxenyana enkulu), kunganciphisa izinga lokulahleka kwamanzi ngodaka ngosimende ngo-9-29%.

I-Cellulose Ether ithuthukisa izakhiwo ze-Rheological, isakhiwo senethiwekhi ye-porous kanye nengcindezi ye-osmotic ye-advere entsha yensimbi, futhi impahla yayo eyakha ifilimu ivimbela ukuguquguquka kwamanzi. Lolu chungechunge lwezinqubo ngokuhlangene ukunciphisa ukucindezela okukhiqizwe izinguquko zomswakama osimende, ngaleyo ndlela kuvimbela i-shrinkage yamahhala yepulasitiki.

I-3. Umphumela we-cellulose ether dosage nge-shrinkage yamahhala yepulasitiki

Ucwaningo lukhombisile ukuthi i-shrinkage yamahhala yepulasitiki yodaka kasimende yehlisa ngokuqondile ngokwanda kwe-cellulose ether dosage. Ukuthatha i-HPMC njengesibonelo, lapho umthamo ungo-0.1-0.4 (ingxenye enkulu yeplastiki yamahhala yodaka kasimende ingancishiswa ngo-30-50%. Lokhu kungenxa yokuthi umthamo ukhuphuka, umphumela waso wokugcina amanzi nemiphumela yokuvinjwa kokuvinjwa kokuvimbela ukuqhubeka nokwanda.

Kodwa-ke, umthamo we-cellulose ether awunakukhuliswa unomphela. Ngakolunye uhlangothi, kusuka endaweni yezomnotho yokubuka, ukungezwa okuningi kakhulu kuzonyusa izindleko; Ngakolunye uhlangothi, iningi le-cellulose ether lingaba nomthelela omubi kwezinye izakhiwo zodaka, njengamandla odaka.

I-4. Ukubaluleka kwethonya le-cellulose ether kwi-shrinkage yamahhala yepulasitiki yodaka

Ngokombono wohlelo lokusebenza lobunjiniyela olusebenzayo, ukungezwa okunengqondo kwe-cellulose ether kuya ku-motar kunganciphisa ngempumelelo i-shrinkage yamahhala yepulasitiki, ngaleyo ndlela kunciphise ukwenzeka kwemifantu yodaka. Lokhu kubaluleke kakhulu ekuthuthukiseni ikhwalithi yezakhiwo, ikakhulukazi ukwenza ngcono ukuqina kwezinhlaka ezifana nezindonga.

Kwamanye amaphrojekthi akhethekile anezidingo eziphakeme zekhwalithi yodaka, efana namanye amabhilidi aphezulu okuhlala kanye nezakhiwo ezinkulu zomphakathi, ngokulawula ithonya le-cellulose ether kwi-shrinkage yamahhala yodaka, ingaqinisekiswa ukuthi iphrojekthi ihlangabezana namazinga aphezulu .

5. Ucwaningo amathemba

Yize kube nemiphumela ethile yocwaningo ethonyeni le-cellulose ether kwi-shrinkage yamahhala yepulasitiki yodaka, kusenezici eziningi ezingahlolisiswa ngokujula. Isibonelo, indlela ethonya lezinhlobo ezahlukene ze-cellulose i-Teshers eShrikage yamahhala kadaka lapho enza ndawonye nezinye izithasiselo.

Ngokuthuthuka okuqhubekayo kobuchwepheshe bokwakha, izidingo zokusebenza kodaka nazo zikhula njalo. Ucwaningo olwengeziwe luyadingeka ukuthi ulawule kanjani ngokunembile ukusetshenziswa kwe-cellulose ether ngodaka ukuze uzuze umphumela omuhle kakhulu wokuvimbela i-shrinkage yamahhala yepulasitiki ngenkathi unaka ezinye izakhiwo zodaka.