{"id":9736,"date":"2024-09-17T08:48:15","date_gmt":"2024-09-17T08:48:15","guid":{"rendered":"https:\/\/longchangextracts.com\/?p=9736"},"modified":"2024-09-17T08:48:15","modified_gmt":"2024-09-17T08:48:15","slug":"softening-effects-produced","status":"publish","type":"post","link":"https:\/\/longchangextracts.com\/da\/softening-effects-produced\/","title":{"rendered":"Hvad er den bl\u00f8dg\u00f8rende effekt af magnesiumstearat i den direkte kompressionsproces?"},"content":{"rendered":"<h1>Hvad er den bl\u00f8dg\u00f8rende effekt af magnesiumstearat i den direkte kompressionsproces?<\/h1>\n<p>Magnesiumstearat er et af de mest anvendte sm\u00f8remidler i farmaceutiske og f\u00f8devareprocesser. I forskning og produktion af tabletter har det imidlertid vist sig, at tils\u00e6tning af magnesiumstearat har en vis bl\u00f8dg\u00f8rende effekt p\u00e5 tabletter, hvilket hovedsageligt manifesteres i reduktion af tablettens h\u00e5rdhed og forbedring af tablettens sk\u00f8rhed, hovedsageligt p\u00e5 grund af det faktum, at magnesiumstearat kan \u00e6ndre bindingskraften mellem partiklerne af hj\u00e6lpestoffer, hvilket igen \u00e6ndrer hj\u00e6lpestoffernes karakter til kompressionstablettering.<br \/>\nSt\u00f8rrelsen af magnesiumstearatets bl\u00f8dg\u00f8rende effekt p\u00e5 materialet p\u00e5virkes af en r\u00e6kke faktorer, herunder egenskaberne ved det direkte pressende hj\u00e6lpestof, de fysiske og kemiske egenskaber ved selve magnesiumstearatet, koncentrationen af magnesiumstearat og den tid, hj\u00e6lpestoffet blandes med magnesiumstearatet.<br \/>\nFysiske og kemiske egenskaber ved magnesiumstearat<br \/>\nMagnesiumstearat er et hvidt, luftigt, ikke-grynet fint pulver med en let, ejendommelig lugt. Det har hydrofobicitet og ekstremt st\u00e6rk adsorption.<br \/>\nForskellige syntese- og produktionsprocesser resulterer i forskellige egenskaber af magnesiumstearat, specifikt i partikelst\u00f8rrelse og morfologi og andre forskelle, og disse forskelle f\u00f8rer ogs\u00e5 til forskellige sm\u00f8reeffekt af magnesiumstearat. Derudover viste sammenligningen, at partikelst\u00f8rrelse mindre, st\u00f8rre specifikt overfladeareal af magnesiumstearat sm\u00f8reeffekt er bedre, med andre ord, kan v\u00e6re s\u00e5dan en magnesiumstearat er mere tilb\u00f8jelig til oversm\u00f8ringsf\u00e6nomen, dvs. bl\u00f8dg\u00f8ringseffekt.<br \/>\nEffekt af hj\u00e6lpestoffer til direkte presning p\u00e5 f\u00f8lsomheden af magnesiumstearat<br \/>\nStyrken af f\u00f8lsomheden af direkte pressende hj\u00e6lpestoffer til magnesiumstearat udtrykkes ved sm\u00f8remiddelf\u00f8lsomhedsforhold (LSR), LSR = 1-N \/ N0, N0 angiver h\u00e5rdheden af direkte pressende hj\u00e6lpestoffer presset i tabletter uden magnesiumstearat, og N angiver h\u00e5rdheden af magnesiumstearatholdig h\u00e5rdhed. V\u00e6rdien af LSR er h\u00f8j, hvilket indikerer, at de direkte pressende hj\u00e6lpestoffer har en st\u00e6rk f\u00f8lsomhed over for magnesiumstearat, er st\u00e6rkt p\u00e5virket af magnesiumstearat, og bl\u00f8dg\u00f8ringseffekten er indlysende. P\u00e5virkningen af bl\u00f8dg\u00f8ringseffekten er indlysende.<br \/>\nI henhold til deformationen af hj\u00e6lpestofferne til direkte presning efter presning kan hj\u00e6lpestofferne til direkte presning opdeles i 3 kategorier: elastiske hj\u00e6lpestoffer, plastiske hj\u00e6lpestoffer og sk\u00f8re hj\u00e6lpestoffer. Elastiske hj\u00e6lpestoffer henviser til materialepartiklernes deformation efter kompression, n\u00e5r kraften tr\u00e6kkes tilbage og returneres til den oprindelige tilstand af en klasse af hj\u00e6lpestoffer, s\u00e5som stivelsesklasse af hj\u00e6lpestoffer til direkte tryk (begge visk\u00f8se); plastiske hj\u00e6lpestoffer henviser til materialepartiklernes deformation efter kompression, men forekommer ikke efter tilbagetr\u00e6kning af kraftelasticiteten ved genoprettelse af s\u00e5danne materialer som mikrokrystallinsk cellulose osv.Sk\u00f8re hj\u00e6lpestoffer henviser til materialepartiklerne efter kompression, bruddet opst\u00e5r i en mindre partikelst\u00f8rrelse, s\u00e5som laktose og calciumphosphat. Hver kategori af hj\u00e6lpestoffer p\u00e5virkes af magnesiumstearat i forskellig grad ved tablettering, hvor magnesiumstearat har en betydelig effekt p\u00e5 elastiske og plastiske hj\u00e6lpestoffer, der er i stand til at blive deformeret ved tablettering.<br \/>\nGenerelt blev de tre typer hj\u00e6lpestoffer p\u00e5virket af magnesiumstearat i f\u00f8lgende r\u00e6kkef\u00f8lge: elastiske hj\u00e6lpestoffer &gt; plastiske hj\u00e6lpestoffer &gt; sk\u00f8re hj\u00e6lpestoffer.<br \/>\nPartikelst\u00f8rrelse p\u00e5virker hj\u00e6lpestoffers f\u00f8lsomhed over for magnesiumstearat<br \/>\nPartikelst\u00f8rrelse er den mest grundl\u00e6ggende egenskab ved pulvere og kan bestemme andre egenskaber ved pulvere. For hj\u00e6lpestoffer til direkte tryk er det n\u00f8dvendigt at have god fluiditet, og generelt er partikelst\u00f8rrelsen og pulverfluiditeten positivt relateret, jo st\u00f8rre partikelst\u00f8rrelse, jo bedre er fluiditeten, men forskellige partikelst\u00f8rrelser p\u00e5virker hj\u00e6lpestoffernes f\u00f8lsomhed over for magnesiumstearat.<br \/>\nDe forskellige partikelst\u00f8rrelser af mikrokrystallinsk cellulose blev unders\u00f8gt som p\u00e5virket af magnesiumstearat, og st\u00f8rre partikelst\u00f8rrelser havde st\u00e6rkere f\u00f8lsomhed over for magnesiumstearat. Fors\u00f8gsresultaterne viste, at opl\u00f8sningshastigheden steg hurtigt med stigende partikelst\u00f8rrelse, og tabletternes h\u00e5rdhed faldt med stigende blandingstid. Blandingstiden for hj\u00e6lpestoffer med magnesiumstearat p\u00e5virker bl\u00f8dg\u00f8ringsgraden<br \/>\nI produktionsprocessen af tabletter er blandingstiden for materialer en vigtig parameter, for kort tid kan materialerne ikke blandes ensartet, og i tilf\u00e6lde af materialer, der indeholder magnesiumstearat som sm\u00f8remiddel, kan forl\u00e6ngelsen af tiden medf\u00f8re en r\u00e6kke bivirkninger.<br \/>\nHj\u00e6lpestoffer med direkte tryk, cellulose, stivelse og laktose, p\u00e5virkes af blandetidens l\u00e6ngde. Tabletternes h\u00e5rdhed falder med l\u00e6ngere blandingstid, og sammensatte hj\u00e6lpestoffer udviser ogs\u00e5 sm\u00f8ref\u00f8lsomhed. Koncentrationen af magnesiumstearat p\u00e5virker bl\u00f8dg\u00f8ringen<br \/>\nM\u00e6ngden af magnesiumstearat, der anvendes i farmaceutiske processer, er ikke strengt begr\u00e6nset, og Pharmaceutical Excipients Handbook anbefaler en koncentration p\u00e5 0,25% til 5,0% (W\/W). P\u00e5 grund af dets hydrofobicitet, som forsinker desintegrationen og opl\u00f8sningshastigheden af faste l\u00e6gemidler, skal det bruges i den lavest mulige m\u00e6ngde. Derudover kan h\u00f8je koncentrationer af magnesiumstearat reducere tabletternes h\u00e5rdhed alvorligt.<br \/>\n\u00c5rsager til den bl\u00f8dg\u00f8rende effekt af magnesiumstearat<br \/>\nDen st\u00e6rke adsorptionseffekt af magnesiumstearat vil danne et lag af sm\u00f8refilm p\u00e5 overfladen af materialet, som ikke er ensartet fordelt i den centrale del af tabletten, og tykkelsen af filmen er mindre end kanten af tabletten, og tykkelsen af filmen i det centrale omr\u00e5de af tabletten er kun 2,5um, n\u00e5r koncentrationen af magnesiumstearat er 1,27%.<br \/>\nDenne film blokerer s\u00e5ledes kontakten og kraften mellem partiklerne. Sm\u00f8refilmen har indlysende effekt p\u00e5 \u00e6ndringen af pulverfluiditet, fra princippet om virkningen af str\u00f8mningshj\u00e6lpen magnesiumstearat dopet i pulveret, de fine partikler af magnesiumstearat adsorberes p\u00e5 overfladen af pulverpartiklerne, som kan fylde fordybningerne i partikeloverfladen, fylde niveauet og reducere ruheden af partiklernes overflade for at opn\u00e5 reduktion af friktionen mellem partiklerne og for at forbedre pulverets fluiditet.<\/p>","protected":false},"excerpt":{"rendered":"<p>What are the softening effects produced by magnesium stearate in the direct compression process? Magnesium stearate is one of the most used lubricants in pharmaceutical and food processes. However, in the research and production of tablets, it is found that the addition of magnesium stearate has a certain softening effect on tablets, which is mainly [&hellip;]<\/p>","protected":false},"author":4,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[46],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>What are the softening effects produced by magnesium stearate in the direct compression process? - China Chemical Manufacturer<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/longchangextracts.com\/da\/softening-effects-produced\/\" \/>\n<meta property=\"og:locale\" content=\"da_DK\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What are the softening effects produced by magnesium stearate in the direct compression process? - China Chemical Manufacturer\" \/>\n<meta property=\"og:description\" content=\"What are the softening effects produced by magnesium stearate in the direct compression process? 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