Focus on Cellulose ethers

Menene abubuwan da ke shafar watsawar haske na hydroxypropyl methylcellulose?

Hanyoyin watsa haske na hydroxypropyl methylcellulose ya fi shafar abubuwa masu zuwa:

1. Ingancin albarkatun kasa.

Na biyu, tasirin alkalization.

3. Tsarin tsari

4. Yawan sauran ƙarfi

5. Sakamakon neutralization

Wasu samfuran suna da gajimare kamar madara bayan an narkar da su, wasu fararen madara ne, wasu masu launin rawaya, wasu kuma a bayyane suke kuma a bayyane… Don magance matsalar, daidaita daga waɗannan abubuwan. Wani lokaci acetic acid na iya yin tasiri sosai akan watsa haske. Zai fi kyau a yi amfani da acetic acid bayan dilution. Babban tasiri shine ko ana motsa halayen a ko'ina kuma ko tsarin tsarin yana da ƙarfi (wasu kayan suna da danshi kuma abun ciki ba shi da kwanciyar hankali, irin su sauran ƙarfi da ake amfani da su don sake amfani da su). A gaskiya ma, abubuwa da yawa suna tasiri. Idan kayan aiki sun tsaya tsayin daka kuma masu aiki suna horar da su sosai, samarwa ya kamata ya kasance da kwanciyar hankali. Fitar da hasken ba zai wuce kewayon ± 2% ba, kuma canjin daidaiton ƙungiyoyin da ke musanya dole ne a sarrafa su da kyau. Maimakon daidaituwa, watsawar haske zai yi kyau.

 

Abubuwan da ke shafar danko na hydroxypropyl methylcellulose:

High- danko hydroxypropyl methylcellulose ba zai iya samar da sosai high cellulose kawai ta vacuuming da nitrogen maye gurbinsu a samar. Gabaɗaya, ba za a iya sarrafa samar da cellulose mai ƙarfi a cikin Sin ba. Koyaya, idan za'a iya shigar da kayan aikin auna iskar oxygen a cikin kettle, ana iya sarrafa samar da dankonta ta hanyar wucin gadi.

sanya. Bugu da ƙari, la'akari da saurin maye gurbin nitrogen, yana da sauƙi don samar da samfurori masu danko ko ta yaya tsarin ya kasance. Tabbas, matakin polymerization na auduga mai ladabi shima yana da mahimmanci. Idan hakan bai yi aiki ba, to, yi shi tare da ƙungiyar hydrophobic. Akwai wakilan ƙungiyoyi a wannan yanki a kasar Sin. Wani nau'in wakili na ƙungiyar da za a zaɓa yana da tasiri mai girma akan aikin samfurin ƙarshe. Ragowar iskar oxygen a cikin reactor yana haifar da lalacewar cellulose da raguwar nauyin kwayoyin halitta, amma ragowar iskar oxygen yana da iyaka, idan dai an sake haɗa kwayoyin da suka karye, ba shi da wuya a sami danko mai yawa. Koyaya, ƙimar jikewa yana da alaƙa da abun ciki na hydroxypropyl. Wasu masana'antu kawai suna son rage farashi da farashi, amma ba sa son haɓaka abun ciki na hydroxypropyl, don haka ingancin ba zai iya kaiwa matakin samfuran ƙasashen waje iri ɗaya ba. Adadin riƙewar ruwa na samfurin yana da alaƙa mai girma tare da hydroxypropyl, amma kuma yana ƙayyade ƙimar riƙewar ruwa, tasirin alkalisation, rabo na methyl chloride da propylene oxide, ƙaddamarwar alkali da ƙimar riƙe ruwa don duk tsarin dauki. Matsakaicin auduga mai ladabi yana ƙayyade aikin samfurin.


Lokacin aikawa: Maris 29-2023
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