Carboxymethyl cellulose (CMC) kayan aiki ne na polymer multifunctional wanda aka fi amfani dashi a cikin abinci, magunguna, kayan kwalliya, man fetur, yin takarda, yadi da sauran masana'antu. Babban fa'idodinsa sun haɗa da kauri, ƙarfafawa, dakatarwa, emulsification, riƙewar ruwa da sauran ayyuka, don haka ana amfani dashi sosai a fannoni da yawa. Duk da haka, duk da kyakkyawan aikinsa a yawancin aikace-aikace, CMC kuma yana da wasu rashin amfani da iyakancewa, wanda zai iya iyakance amfani da shi a wasu lokuta ko buƙatar takamaiman matakai don shawo kan waɗannan rashin amfani.
1. Iyakantaccen narkewa
Solubility na CMC a cikin ruwa yana da muhimmiyar mahimmanci, amma a ƙarƙashin wasu yanayi, ana iya iyakancewa. Misali, CMC yana da ƙarancin narkewa a cikin mahalli mai yawan gishiri ko ruwa mai ƙarfi. A cikin yanayin gishiri mai girma, ƙwanƙwasa electrostatic tsakanin sarƙoƙi na ƙwayoyin cuta na CMC ya ragu, yana haifar da haɓakar hulɗar intermolecular, wanda ke rinjayar solubility. Wannan yana bayyana musamman idan aka shafa a cikin ruwan teku ko ruwa mai dauke da ma'adanai masu yawa. Bugu da ƙari, CMC yana narkar da sannu a hankali a cikin ruwa maras zafi kuma yana iya ɗaukar lokaci mai tsawo don narke gaba ɗaya, wanda zai iya haifar da raguwa a cikin samar da masana'antu.
2. Rashin kwanciyar hankali mara kyau
Dankowar CMC na iya shafar pH, zafin jiki, da ƙarfin ionic yayin amfani. A ƙarƙashin yanayin acidic ko alkaline, danko na CMC na iya raguwa sosai, yana shafar tasirin sa. Wannan na iya yin mummunan tasiri akan wasu aikace-aikacen da ke buƙatar ɗanƙoƙi mai ƙarfi, kamar sarrafa abinci da shirye-shiryen magunguna. Bugu da ƙari, a ƙarƙashin yanayin zafi mai zafi, danko na CMC na iya raguwa da sauri, yana haifar da iyakacin tasiri a wasu aikace-aikace masu zafi.
3. Mummunan yanayin halitta
CMC shine cellulose da aka gyara wanda ke da raguwar raguwar raguwa, musamman a yanayin yanayi. Sabili da haka, CMC yana da ƙarancin ƙarancin halitta kuma yana iya haifar da wani nauyi ga muhalli. Ko da yake CMC ya fi kyau a biodegradation fiye da wasu polymers na roba, tsarin lalacewa har yanzu yana ɗaukar lokaci mai tsawo. A wasu aikace-aikacen da ke da mahimmancin muhalli, wannan na iya zama muhimmin abin la'akari, yana sa mutane su nemi ƙarin kayan da ba su dace da muhalli ba.
4. Abubuwan kwanciyar hankali na sinadaran
CMC na iya zama mara karko a wasu mahallin sinadarai, kamar su acid mai ƙarfi, tushe mai ƙarfi ko yanayin oxidative. Lalacewa ko halayen sinadarai na iya faruwa. Wannan rashin kwanciyar hankali na iya iyakance amfani da shi a takamaiman mahallin sinadarai. A cikin yanayi mai tsananin iskar oxygen, CMC na iya fuskantar lalatawar iskar oxygen, ta haka ya rasa aikinsa. Bugu da ƙari, a cikin wasu hanyoyin da ke dauke da ions karfe, CMC na iya daidaitawa tare da ions karfe, yana tasiri ga solubility da kwanciyar hankali.
5. Babban farashi
Ko da yake CMC abu ne mai kyakkyawan aiki, farashin samar da shi yana da inganci, musamman samfuran CMC tare da babban tsabta ko takamaiman ayyuka. Saboda haka, a wasu aikace-aikace masu tsada, amfani da CMC na iya zama ba na tattalin arziki ba. Wannan na iya sa kamfanoni su yi la'akari da wasu hanyoyin da za su fi dacewa masu tsada lokacin zabar masu kauri ko masu daidaitawa, kodayake waɗannan hanyoyin ba za su yi kyau kamar CMC ba a cikin aiki.
6. Ana iya samun samfurori a cikin tsarin samarwa
Tsarin samarwa na CMC ya ƙunshi gyare-gyaren sinadarai na cellulose, wanda zai iya samar da wasu samfurori, irin su sodium chloride, sodium carboxylic acid, da dai sauransu. Bugu da kari, sinadaran reagents da aka yi amfani da su wajen samarwa na iya yin mummunan tasiri ga muhalli idan ba a kula da su yadda ya kamata ba. Saboda haka, kodayake CMC kanta yana da kyawawan kaddarorin da yawa, tasirin muhalli da lafiya na tsarin samar da shi ma wani al'amari ne da ya kamata a yi la'akari da shi.
7. Ƙimar halitta mai iyaka
Ko da yake CMC ana amfani da shi sosai a cikin magani da kayan kwalliya kuma yana da kyawawa mai kyau na bioacompatibility, yanayin sa na iya zama rashin isa ga wasu aikace-aikace. Alal misali, a wasu lokuta, CMC na iya haifar da laushin fata ko rashin lafiyan halayen, musamman idan aka yi amfani da su a babban taro ko na dogon lokaci. Bugu da ƙari, ƙwayar cuta da kuma kawar da CMC a cikin jiki na iya ɗaukar lokaci mai tsawo, wanda bazai dace da wasu tsarin ba da magani ba.
8. Rashin isassun kayan aikin injiniya
A matsayin thickener da stabilizer, CMC yana da ƙananan ƙarfin inji, wanda zai iya zama ƙayyadaddun abu a wasu kayan da ke buƙatar ƙarfin ƙarfi ko babba. Misali, a cikin wasu kayan masarufi ko kayan haɗin gwiwa tare da buƙatun ƙarfin ƙarfi, aikace-aikacen CMC na iya iyakancewa ko yana iya buƙatar a yi amfani da shi tare da wasu kayan don haɓaka kayan aikin injin sa.
A matsayin kayan aikin multifunctional da ake amfani da su sosai, carboxymethyl cellulose (CMC) yana da fa'idodi da yawa, amma rashin amfanin sa da gazawarsa ba za a iya watsi da shi ba. Lokacin amfani da CMC, abubuwa kamar su solubility, dankon kwanciyar hankali, kwanciyar hankali sinadarai, tasirin muhalli da farashi dole ne a yi la'akari da su a hankali bisa ga takamaiman yanayin aikace-aikacen. Bugu da kari, bincike da ci gaba na gaba na iya kara inganta ayyukan CMC da kuma shawo kan gazawar da ke akwai, ta yadda za a fadada damar yin amfani da shi a wasu fannoni.
Lokacin aikawa: Agusta-23-2024