Mhuucashada kuleylka kuleylka ee EPS waa mid ka kooban dahaarka kuleylka kuleylka ee khafiifka ah ee lagu qasay Daraasadda hadda jirta iyo adeegsiga malaaqa hoosaadka qaybta; Waxqabadka xidhiidhka ee loo yaqaan 'EPS Qeybta' Qalliinka kuleylka kuleylka ee kiimikada ee heerkulka kuleylka ah ee 'Vamyr' ayaa badanaa ka timaadda polymer-ka, oo qaybteedana waxay badanaa tahay vinyl acetate / ethelne copolymer. Noocan ah emulsion-ka noocan ah waxaa lagu qallajin karaa si loo helo budada cinjirka latex-ka dib loo isticmaalo. Sababta oo ah diyaarinta saxda ah ee loo yaqaan 'tolizent' ee loo yaqaan 'the powder' ee loo yaqaan 'the purex budada loo yaqaan' '' iyo keydinta ku habboon iyo kaydinta budada ah ee dabacsan ee pomoowers waxay noqotay isbeddel horumarineed sababta oo ah diyaarinta horumarka sababta oo ah diyaarinta horumarka, gaadiid ku habboon iyo kaydinta ku habboon. Waxqabadka maamuusyada xisbiga EPS Qeybta ah waxay kuxirantahay nooca nooca iyo qadarka polymer loo isticmaalo. Ethylene-vinyl acetate powder (eva) oo leh waxyaabo sare leh iyo TG hooseeya (heerkulka kala-guurka dhalada) qiimaha ayaa leh guryo wanaagsan marka loo eego xoogga saameynta, xoogga dammaanadda iyo iska caabbinta biyaha.
Kordhinta waxqabadka budada cinjirka ee loo yaqaan 'the budo' ee loo yaqaan 'the budo' Marka RDP lagu qaso EPS Walxaha, qaybta aan-wax-ka-qaadin ee silsiladda ugu weyn ee budada polymer ah waxay jir ahaan adsorb oo leh dushiisa aan-ka-qaadin ee EP-ga. Kooxaha Polm-ka ee Polymer-ka ayaa ku hanuunsan dusha sare ee dusha sare ee walxaha EPS, taasoo ka dhigeysa in EPS ay ka beddesho biyo-baxa biyo-baxa. Sababo la xiriira wax ka badalida dusha sare ee dusha sare ee walxaha ka kooban budada polymer, dhibaatada ah in walxaha EPS ay fududahay in lagula kulmo biyaha la xaliyay. Sabuur, dhibaatooyin waaweyn oo ka timaadda madaafiicda. Waqtigaan, markii lagu daray sibidhka iyo kareyda, kooxaha Polar-ka ee dusha sare ee ka soo baxa walxaha EPS waxay la falgalayaan walxaha sibidhka oo si weyn u soo wajahan aagagga loo yaqaan 'preps'. Tani waxay ka muuqataa xaqiiqda ah in walxaha EPS ay si fudud u qulqulaan sibidhka sibidhka, iyo xoogga isku xidhka labada si weyn ayaa loo wanaajiyaa.
Ka dib markii emulsion-ka iyo dib-u-habeynta latex loo sameeyay filim, waxay abuuri karaan awood sare iyo xoog sare oo ku saabsan agabyada kala duwan. Waxaa loo istcimaalaa sida geedaha labaad ee madaafiicda lagu daro iyada oo lagu daro sibidhka inorganic, sibidhka iyo polymer siday u kala horreeyaan. Ciyaar xoojinta u dhigma oo hagaaji waxqabadka madaafiicda. Markaad fiirsato microstit-ka sheyga-ka-buuqa ee polymer-ka, waxaa loo tixgeliyaa in lagu daro budada 'cinjirka' latex 'ee loo yaqaan' polypret totx 'ayaa ka dhigi kara qaab derbiga polymer ah, oo ka dhigista madaafiic ka dhigista mid ka mid ah xoog gudaha ah, kaas oo hagaajiya gudaha xoog hoobiye. Xoogga polymer, oo kor u qaadaya culeyska lagu guuldaraysto ee madaafiiqda iyo kordhinta culeyska ugu dambeeya. Si aad u baratid waxqabadka muddada-dheer ee budada latex ee loo yaqaan 'the the powd budada' godka '' '' '', ayaa lagu arkay anigoo iskaanka microscope elemscope, ka dib, ka dib, ka dib markii la beddelay madaafiicda, sii wadida xoojinta xasilloonida, xoogga dabacsan iyo xoog-biyo-galka ah iyo sidoo kale hydrophobic wanaagsan. . Qaadashada budada latex ee loo yaqaan 'the puder' ee loo yaqaan 'the powder' oo ah sheyga cilmi baarista, qaab dhismeedka xoojinta xoogga tareenka la bartay, waxaa la ogaaday in ka dib filimka polymer uu sameeyay xiriir dabacsan oo ka dhex dhaca madaafiicda iyo taayirrada hal gacantiisa , dhanka kale, polyland-ka-fiicadaha ka dhex jira madaafiicda waxay kordhayaan hawada hoosaadka ee madaafiicda, oo saameeya guriga iyo hadhuudhka dushiisa, pomoobers-ka sidoo kale waxay saameyn ku yeelan karaan hannaanka bog-baxa iyo jahwareerka sibidhka. Ashesies, kuwan oo dhami waxay gacan ka geysan karaan kordhinta xoogga dammaanadda.
Ku darista budada cinjirka 'cinjirka' taab-dhejisyada '' depulary. Filimka gudaha ah ayaa la sameeyay oo si adag u xayeysiiyay dusha sare ee substrate, sidaas darteed waxay hubisaa xoog wanaagsan oo u dhexeeya agabka gelleelka iyo substrate.
Waqtiga Post: Jun-16-2023