1. Kayayyakin asali na HPMC
Hydroxypyl methylcellose (hpmc)Shin ana amfani da ethulas ethulet ether da aka yi amfani da shi sosai a cikin kayan gini, magani, abinci, kayan kwalliya da sauran masana'antu. Abubuwan da ke cikin ilimin kimiyyarsu na musamman, kamar suɗi, kalitta, fim-forming da kayan aikin geangar da ke da zafi, sanya shi m rabo daga aikace-aikace masana'antu. Zazzabi shine ɗayan manyan abubuwan da suka shafi aiwatar da HPMC, musamman ma cikin sharuddan solubility, danko, geaddara da kwanciyar hankali da kwanciyar hankali.
2. Tasirin zazzabi a kan kayan aiki na HPMC
HPMC wani mai narkewa mai narkewa ne mai narkewa, kuma canje-canjen sa tare da zazzabi:
Lowerancin yanayin sanyi (ruwan sanyi): hpmc yana da sauƙi kamar narkewa a cikin ruwan sanyi, amma zai sha ruwa da kumburi lokacin da yake lambobin farko su samar da barbashi gel. Idan motsa su bai isa ba, lumps na iya samar da tsari. Sabili da haka, ana ba da shawarar yawanci don ƙara HPMC a hankali yayin da motsa su inganta watsawa.
Matsakaici zazzabi (20-40 ℃): A cikin wannan zafin zafin jiki, hpmc yana da kyakkyawar ƙwarewa da ingantaccen danko, kuma ya dace da tsinkaye iri-iri.
Babban zazzabi (sama da 60 ° C): hpmc shine zai iya samar da gel mai zafi a zazzabi mai zafi. Lokacin da zazzabi ya kai takamaiman zazzabi gel, maganin zai zama opaque ko ma cunkulate, wanda ya shafi tasirin aikace-aikace. Misali, a cikin kayan gini kamar turmi ko putty foda, idan ruwan zafin jiki ya yi girma sosai, idan ruwa bazai iya narkar da shi da kyau ba, don haka ya shafi ingancin ginin.
3. Tasirin zafin jiki a danko na HPMC
Da danko na HPMC ya shafi zafin jiki da yawa:
Exceriara yawan zafin jiki, danko mai danko: danko na bayani HPMC yawanci yana raguwa tare da ƙara yawan zafin jiki. Misali, danko na wani bayani na HPMC na iya zama da yawa a 20 ° C, yayin da yake da 50 ° C, da dankanonsa zai ragu sosai.
Zazzabi ya ragu: idan an sanyawar HPMC bayan dumama, dankan ta za su iya dawowa gaba, amma bazai iya komawa zuwa farkon.
Hpmc na grades daban-daban na nuna bambanci daban: High-mai hankali HPMC ya fi dacewa da canje-canje na zazzabi, yayin da ƙarancin danko) yana da ƙarancin danko lokacin da zafin jiki ya canza. Sabili da haka, yana da mahimmanci musamman don zaɓar HPMC tare da danko mai kyau a cikin yanayin aikace-aikace daban-daban.
4. Tasirin zazzabi a kan thermal geation na HPMC
Muhimmin halayyar HPMC shine mafarauta, shine lokacin da yawan zafin jiki ya tashi zuwa wani matakin, maganinta zai juya cikin Gel. Ana kiran wannan zafin jiki yawanci ana kiran zazzabi na geration. Daban-daban nau'ikan HPMC suna da yanayin mutunya daban-daban, gaba ɗaya tsakanin 50-80 ℃.
A cikin masana'antu da masana'antu na pharmaceuticles, wannan halayyar HPMC ana amfani da ita don shirya magunguna masu ɗorewa ko kuma kayan kwalliyar abinci.
A cikin aikace-aikacen ginin, kamar ciminti turmi da putty foda, da thery thery of hepmc na iya samar da riƙewar ruwa, amma idan yanayin ginin ginin na iya shafar aikin ginin.
5. Tasirin zafin jiki a kan kwanciyar hankali na hpmc
Tsarin sunadarai na hpmc ya tabbata a cikin kewayon zafin jiki da ya dace, amma fuskantar dogon lokaci ga high zazzabi zai iya haifar da lalata.
Babban zafin jiki mai gajarta (kamar dannewa kai tsaye: Mayu ba mahimmanci yana shafar kamfanoni a cikin kaddarorin jiki ba, kamar su rage danko.
Haske na dogon lokaci (kamar ci gaba da dumama sama da 90 ℃): yana iya haifar da madaidaicin sarkar HPMC don fashewa, yana haifar da raguwa da ba a iya magana da shi da kuma samar da kayan aikinta.
Matsakaicin babban zafin jiki (sama da 200 ℃): HPMC na iya yin lalata da zafin rana, sakin abubuwa masu zuwa kamar methanol da protanol, da kuma haifar da kayan don ƙididdigewa ko ma carbonize.
6. Shawarwarin aikace-aikacen don HPMC a cikin yanayin zazzabi daban-daban
Don ba da cikakken wasa zuwa ga HPMC, yakamata a ɗauki matakan da suka dace gwargwadon yanayin zazzabi daban-daban:
A cikin ƙananan yanayin yanayi (0-10 ℃): HPMC Nassolves a hankali, kuma ana bada shawara don pre-soke shi a cikin ruwan dumi (20-40 ℃) kafin amfani.
A cikin yanayin yanayi na yau da kullun (10-40 ℃): HPMC tana da kwanciyar hankali kuma ta dace da yawancin aikace-aikacen, kamar coatings, masu ɓoyayyen fata, abinci da magunguna da magunguna.
A cikin yanayin zazzabi (sama da 40 ℃): Guji ƙara HPMC kai tsaye zuwa ruwan zafin jiki mai zafi. An ba da shawarar watsa shi a cikin ruwan sanyi kafin dumama shi, ko zaɓi babban zazzabi mai tsananin ƙarfi don rage tasirin gefation akan aikace-aikacen.
Zazzabi yana da tasiri mai mahimmanci a kan ƙima, danko, geaddara da kwanciyar hankali naHpmC. A yayin aiwatar da aikace-aikacen, ya zama dole don mai da hankali zaɓi samfurin da kuma hanyar amfani da HPMC bisa ga takamaiman yanayin zafin jiki don tabbatar da ingantaccen aiki. Fahimtar yanayin zafin jiki na HPMC ba zai iya inganta ingancin samfurin bane, amma kuma yana hana asarar da ba dole ba ta canza da kuma inganta ƙarfin samarwa da fa'idodin tattalin arziki.
Lokacin Post: Mar-28-2025