HPMC ko hydroxypropyl methylcellulose abu ne mai amfani da shi a cikin masana'antu iri-iri ciki har da magunguna, kayan shafawa da abinci. Ana amfani da shi sosai azaman mai kauri da emulsifier, kuma ɗanƙoƙin sa yana canzawa dangane da yanayin zafin da yake nunawa. A cikin wannan labarin, za mu mai da hankali kan alakar da ke tsakanin danko da zafin jiki a cikin HPMC.
An bayyana danko a matsayin ma'aunin juriyar ruwa. HPMC wani abu ne mai ƙarfi wanda ma'aunin juriyarsa ya dogara da abubuwa daban-daban, gami da zafin jiki. Don fahimtar dangantakar da ke tsakanin danko da zafin jiki a cikin HPMC, da farko muna buƙatar sanin yadda aka samar da abu da abin da aka yi da shi.
An samo HPMC daga cellulose, wani polymer na halitta a cikin tsire-tsire. Don samar da HPMC, cellulose yana buƙatar gyare-gyare ta hanyar sinadarai tare da propylene oxide da methyl chloride. Wannan gyare-gyare yana haifar da samuwar hydroxypropyl da ƙungiyoyin methyl ether a cikin sarkar cellulose. Sakamakon shi ne wani abu mai mahimmanci wanda za'a iya narkar da shi a cikin ruwa da abubuwan da ake amfani da su a cikin ruwa da kuma amfani da su a cikin nau'o'in aikace-aikace, ciki har da a matsayin sutura ga allunan da kuma a matsayin mai kauri don abinci, da sauransu.
Dankowar HPMC ya dogara ne akan ƙaddamar da abun da ke ciki da kuma yawan zafin jiki wanda aka fallasa shi. Gabaɗaya, danko na HPMC yana raguwa tare da haɓaka haɓakawa. Wannan yana nufin cewa babban taro na HPMC yana haifar da ƙananan danko da akasin haka.
Koyaya, dangantakar da ke tsakanin danko da zafin jiki ta fi rikitarwa. Kamar yadda aka ambata a baya, danko na HPMC yana ƙaruwa tare da rage yawan zafin jiki. Wannan yana nufin cewa lokacin da HPMC ke fuskantar ƙananan yanayin zafi, ƙarfinsa na gudana yana raguwa kuma ya zama danko. Hakanan, lokacin da HPMC ke fuskantar yanayin zafi mai yawa, ƙarfinsa yana ƙaruwa kuma dankowar sa yana raguwa.
Akwai abubuwa daban-daban waɗanda ke shafar alaƙa tsakanin zafin jiki da danko a cikin HPMC. Alal misali, sauran abubuwan da ke cikin ruwa na iya rinjayar danko, kamar yadda pH na ruwa zai iya. Gabaɗaya, duk da haka, akwai alaƙar da ba ta dace ba tsakanin danko da zafin jiki a cikin HPMC saboda tasirin zafin jiki akan haɗin gwiwar hydrogen da hulɗar kwayoyin halitta na sarƙoƙin cellulose a cikin HPMC.
Lokacin da HPMC ke ƙarƙashin ƙananan yanayin zafi, sarƙoƙi na cellulose ya zama mafi tsauri, wanda ke haifar da haɓaka haɓakar hydrogen. Waɗannan haɗe-haɗe na hydrogen suna haifar da juriya na abu don gudana, ta haka yana ƙara ɗanɗano. Sabanin haka, lokacin da aka yi wa HPMCs yanayin zafi mai yawa, sarƙoƙin cellulose ya zama mafi sassauƙa, wanda ya haifar da ƙarancin haɗin hydrogen. Wannan yana rage juriya na abu don gudana, yana haifar da ƙananan danko.
Yana da kyau a lura cewa yayin da yawanci ana samun sabanin dangantaka tsakanin danko da zafin jiki na HPMC, wannan ba koyaushe bane ga kowane nau'in HPMC. Madaidaicin dangantaka tsakanin danko da zafin jiki na iya bambanta dangane da tsarin masana'anta da takamaiman matakin HPMC da aka yi amfani da shi.
HPMC wani abu ne na multifunctional da ake amfani da shi a cikin masana'antu daban-daban don kauri da kayan emulsifying. Dankowar HPMC ya dogara da dalilai da yawa, gami da ƙaddamar da abun da ke ciki da zafin jiki wanda aka fallasa shi. Gabaɗaya, dankowar HPMC ya bambanta da yanayin zafi, wanda ke nufin cewa yayin da zafin jiki ya ragu, danko yana ƙaruwa. Wannan ya faru ne saboda tasirin zafin jiki akan haɗin hydrogen da hulɗar kwayoyin halitta na sarƙoƙi na cellulose a cikin HPMC.
Lokacin aikawa: Satumba-08-2023