CodsigaCellulose-ka Hydroxypropyl MethylDaabacaadda Khad
Khadku wuxuu ka kooban yahay midabyo, walxo isku xiran iyo walxo kaaliyeyaal ah (hydroxypropyl methylcellulose), kuwaas oo isku dhafan oo la duubay.
Diyaar u ah khad. Midabka, jidhka (badanaa sifooyinka rheological ee khad sida isku dheelitirka khafiifka ah iyo dareeraha waxaa loo yaqaan jidhka khad) iyo waxqabadka qalajinta ayaa ah saddexda astaamood ee ugu muhiimsan ee khad.
Budada cad ee degdega ah ee hydroxypropyl methylcellulose ee daabacaadda khadku waa budo cad oo aan ur lahayn, dhadhan lahayn, oo aan sun ahayn.
Waxay ku milmaysaa xal colloidal ah oo cad ama xoogaa daruuro leh oo ku jira biyaha qabow. Waxay leedahay astaamaha dhumucda, isku xidhka, kala firdhinta, emulsification, sameynta filim, joojinta, nuugista, jelitaanka, dhaqdhaqaaqa dusha sare, haynta biyaha iyo colloid-ka ilaalinta. Waxay door muhiim ah ka ciyaartaa.
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Hydroxypropyl methylcellulose waxay leedahay saddex viscosity oo kala ah 100,000, 150,000, iyo 200,000. Dheef-dhalashada waa astaamaha socodka dareeraha khad.
Tilmaame muujinaya xaddiga iska caabinta (ama is jiidjiidka gudaha) ee dhaqdhaqaaqa. Inta lagu jiro daabacaadda kala-goynta, waxaa lagama maarmaan ah in la helo isku-dhaf gaar ah si loo ilaaliyo wareejinta khadka si caadi ah.
Waa shardiga ugu muhiimsan ee keenista iyo wareejinta, waana shardi muhiim ah oo lagu go'aaminayo xawaaraha, cadaynta iyo dhalaalka daabacaadda.
Haddii uu aad u weyn yahay, way adkaan doontaa in la wareejiyo oo la wareejiyo, si xaddiga khadku ugu jiro qaab-dhismeedka uusan ugu filnayn, taasoo keenta qaawanaanta sawirada iyo qoraalka si ay u sameeyaan qaab. Sidoo kale, dheellitirka,
Haddii uu aad u weyn yahay, way fududahay in warqadda la nadiifiyo oo la budo, ama ay keento diirka xaashida daabacan. Laakiin haddii uu aad u yar yahay, way fududahay in la soo saaro.
Iyadoo sabeynaysa oo wasakhaysan, waxay sababi doontaa emulsification khad kiisaska daran, haddii aysan ilaalin karin gudbinta iyo wareejinta caadiga ah, iyo si tartiib tartiib ah khadku ugu jiro.
Walxaha midabka ayaa ku urura duubayaasha, saxanadaha daabacaadda iyo bustayaasha, marka ururku gaaro heer cayiman, waxay sababi doontaa wasakh.
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Cellulose Hydroxypropyl methylwaxay leedahay dhegdheg wanaagsan, iyadoo ka fogaanaysa dhegdhegga khad inta lagu jiro habka daabacaadda
Kuma habboona xaaladaha waxqabadka iyo daabacaadda ee substrate-ka, taasoo keentay budada warqadda, lint, daabacaadda khad liidata, daabacaadda
Cilladaha daabacaadda sida saxamada wasakhaysan.
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Hydroxypropyl methylcellulose waxay leedahay thixotropy wanaagsan, iyadoo ka fogaanaysa thixotropy-ga khadka inta lagu jiro habka daabacaadda.
Cilladaha daabacaadda sida "socodka khad oo liita", wareejinta khad aan sinnayn, iyo ballaarinta halista ah ee dhibcaha oo ay sababaan xumaanta.
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Hydroxypropyl methylcellulose waxay leedahay dhejis aad u sarreeya, inta lagu jiro daabacaadda offset-ka, xoogga midabaynta ee khadku ma aha oo kaliya mid toos ah.
Waxay la xiriirtaa saameynta daabacaadda iyo tayada badeecada la daabacay, waxayna sidoo kale si dhow ula xiriirtaa xaddiga khad ee bedka halbeeg kasta. Haddii aad doorato
Isticmaalka khad leh awood midabayn oo xooggan waxay isticmaali doontaa khad ka yar khad leh awood midabayn oo daciif ah, natiijooyin daabacaad oo wanaagsanna waa la heli karaa.
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Hydroxypropyl methylcellulosewaxay leedahay dareere aad u fiican, khad dareere oo ku habboon, iyo simitaan ku jira isha khad
Waxay leedahay awood khad-gelin oo wanaagsan iyo awood khad-gelin oo wanaagsan; wareejinta iyo wareejinta u dhaxaysa duubayaasha khad ama inta u dhaxaysa saxanka daabacaadda iyo bustaha sidoo kale waa wanaagsan yihiin;
Lakabka khadku waa isku mid; filimka khad ee la daabacay waa siman yahay oo siman yahay. Haddii dareeruhu aad u yar yahay, way fududahay in la keeno dheecaan khad oo liita; qaybinta aan sinnayn ee lakabka khadku, iwm.
dhacdo, dusha sare ee filimka khadka la daabacay ayaa sidoo kale soo muuqan doona gariir. Marka dareeruhu aad u weynaado, lakabka khad ee khafiifka ah ayaa si fudud u sababi kara ballaarinta dhibcaha, daabacaadda.
Midabku ma xoog badna. Habka mitirka socodka ayaa si caadi ah loo isticmaalaa.
Waqtiga boostada: Abriil-25-2024