Kuyini i-PMMA? I-PMMA ingaphinde isetshenziswe kangakanani?

Iyini i-PMMA futhi kungani ifaneleka ekupakisheni izimonyo?

I-PMMA iyinto eyenziwe nge-thermoplastic enokucaca okuphezulu, evumela ukukhanya okungaphezu kuka-92% ukuthi kungene, okuveza umphumela ocacile ofana nowengilazi. Ngesikhathi esifanayo, i-PMMA inokumelana okuhle nesimo sezulu futhi ayithambekeli ekuphuzeni noma ekuphelelweni ngisho nangemva kokuchayeka isikhathi eside emisebeni ye-UV. Ngakho-ke, izimonyo eziningi ezisezingeni eliphezulu zikhetha ukusebenzisa ukupakishwa kwe-PMMA ukuthuthukisa ukuthungwa kanye nobuhle bomkhiqizo. Ngaphezu kokukhanga kwayo, i-PMMA nayo imelana namakhemikhali, iqinisekisa ukuzinza kwezimonyo ngesikhathi sokugcina.

Izicelo ezijwayelekile zokupakisha i-PMMA zifaka:

Izivalo zebhodlela le-serum: I-PMMA ingaveza ukuthungwa okufana nengilazi, okuhambisana nokubekwa kwemikhiqizo ephezulu njenge-serum.
Amakesi empuphu kanye nokupakishwa kwezimonyo ngokhilimu: Ukumelana nokushayisana kwe-PMMA kwenza imikhiqizo iphephe kakhulu ngesikhathi sokuthuthwa kanye nokusetshenziswa kwansuku zonke.
Amagobolondo abonakalayo: Amagobolondo abonakalayo emikhiqizo efana nezindebe zomlomo nezisekelo, isibonelo, abonisa umbala wokuqukethwe futhi anezela umuzwa wekhwalithi ephezulu wephakheji.

Iyini amandla okusebenzisa kabusha i-PMMA?

Phakathi kwe-thermoplastics, i-PMMA inamandla okuphinda isebenzise, ​​ikakhulukazi ngoba ukuqina kwayo kwamakhemikhali kuyivumela ukuthi igcine izakhiwo zayo ezinhle ngisho nangemva kokuphinda isebenzise kaningi. Ngezansi kunezindlela ezimbalwa zokuphinda isebenzise ze-PMMA kanye nekhono lazo lokufaka izinto zokuhlobisa:

Ukuphinda kusetshenziswe ngomshini: I-PMMA ingaphinde isetshenziswe ngomshini ngokuchoboza, ukuncibilikisa, njll. ukuze yenziwe iphakheji entsha ye-PMMA noma eminye imikhiqizo futhi. Kodwa-ke, i-PMMA ephinde yasetshenziswa ngomshini ingase yonakale kancane ngekhwalithi, futhi ukusetshenziswa kabusha ekupakisheni kwezimonyo okusezingeni eliphezulu kudinga ukucutshungulwa kahle.

Ukuvuselelwa kwamakhemikhali: Ngobuchwepheshe bokubola kwamakhemikhali, i-PMMA ingahlukaniswa ibe yi-monomer MMA yayo (i-methyl methacrylate), engabe isilungiswa nge-polymer ukuze kwenziwe i-PMMA entsha. Le ndlela igcina ubumsulwa obukhulu kanye nokucaca kwe-PMMA, okwenza ifaneleke kakhulu ekukhiqizweni kokupakisha kwezimonyo zekhwalithi ephezulu. Ngaphezu kwalokho, ukuvuselelwa kwamakhemikhali kunobungani nemvelo ngokuhamba kwesikhathi kunokuvuselelwa kwemishini, kodwa ayikasetshenziswa kakhulu emkhakheni wezimonyo ngenxa yezindleko zayo eziphakeme kanye nezidingo zobuchwepheshe.

Isidingo Semakethe sezicelo eziqhubekayo: Njengoba kuthambekele ekukhuleni kokuvikelwa kwemvelo, izinhlobo eziningi zobuhle seziqala ukusebenzisa izinto ze-PMMA eziphinde zasetshenziswa ekupakisheni. I-PMMA ephinde yasetshenziswa icishe ibe yizinto ezingeyona i-virgin maqondana nokusebenza kwayo futhi inganciphisa ngempumelelo ukusetshenziswa kwezinto zokusetshenziswa, ngaleyo ndlela yehlise umthelela wekhabhoni. Izinhlobo eziningi ngokwengeziwe zifaka i-PMMA ephinde yasetshenziswa ekwakhiweni kwemikhiqizo yazo, engagcini nje ngokuhlangabezana nezidingo zobuhle, kodwa futhi ehambisana nomkhuba wokuvikelwa kwemvelo.

Amathemba esikhathi esizayo okuvuselelwa kwe-PMMA emaphaketheni ezimonyo

Naphezu kwamandla amakhulu okusebenzisa kabusha i-PMMA ekupakisheni ubuhle, kusenezinselelo. Njengamanje, ubuchwepheshe bokusebenzisa kabusha i-PMMA abusabalele ngokwanele, futhi ukuphinda usebenzise amakhemikhali kuyabiza futhi kuncane. Esikhathini esizayo, njengoba ubuchwepheshe buthuthuka futhi izinkampani eziningi zitshala imali ekupakisheni okungenabungozi emvelweni, ukuphinda usebenzise i-PMMA kuzoba ngcono futhi kuvame kakhulu.

Kulesi simo, izinhlobo zobuhle zingakhuthaza intuthuko esimeme yokupakisha izimonyo ngokukhetha ukupakisha kwe-PMMA okuphinde kwasetshenziswa, ukuthuthukisa izindlela zemvelo ochungechungeni lokuhlinzeka, njll. I-PMMA ngeke ibe yinto ejabulisa ubuhle kuphela, kodwa futhi izoba ukukhetha okumelelayo kokuhlanganisa ukuvikelwa kwemvelo kanye nemfashini, ukuze yonke iphakheji isize ekuvikeleni imvelo.