Hydroxypropyl methylcellulose a matsayin mannen gini

Matsayin manne gini lamari ne da ke damun abokan ciniki.

1. Matsayin mannen gini yakamata yayi la'akari da albarkatun ƙasa. Babban dalilin samuwar Layer bonding shine rashin daidaituwa tsakanin acrylic emulsion da hydroxypropyl methylcellulose (HPMC).

2. Saboda rashin isasshen lokacin haɗuwa; mannen gini kuma yana da matsalar ƙarancin kauri. A cikin mannen gini, yana da mahimmanci a yi amfani da kofi nan take hydroxypropyl methylcellulose (HPMC) saboda HPMC kawai ya tarwatse a cikin ruwa kuma baya narke da gaske. Bayan kamar mintuna 2, dankon ruwan a hankali yana ƙaruwa, yana samar da cikakken bayani na colloidal viscos gaba ɗaya. Abubuwan da aka narke da sauri na iya watsewa cikin ruwan tafasasshen ruwa kuma su ɓace a cikin ruwan zãfi lokacin da suka ci karo da ruwan sanyi. Lokacin da zafin jiki ya faɗi zuwa takamaiman zafin jiki, ɗanɗanowar danko yana faruwa har sai an samar da cikakken bayani na colloidal na viscos. Ana ba da shawarar sosai don amfani da kilogiram 2-4 na hydroxypropyl methylcellulose (HPMC) a cikin mannen gini.

3. Abubuwan da ke cikin jiki na hydroxypropyl methylcellulose (HPMC) a cikin gine-ginen gine-gine suna da kwanciyar hankali, tasirin anti-mildew yana da kyau sosai, kuma ba zai lalace ta hanyar canje-canje a darajar pH ba. Ana iya amfani da danko tsakanin 100,000 s da 200,000 s, amma a cikin samarwa Lokacin da ake samarwa, mafi girman danko, mafi kyau. Dankowa yayi daidai gwargwado ga ƙarfin matsawa na manne. Mafi girman danko, ƙananan ƙarfin matsawa. Gabaɗaya, danko shine 100,000s.

Yanzu a cikin masana'antar kayan ado, aikace-aikacen hydroxypropyl methylcellulose ya fi stringent.

Yadda za a sarrafa wannan adadin? Kai ku:

Nan da nan sai a hada CMC da ruwa a yi man shafawa kamar manna a ajiye a gefe. Lokacin shigar da manna CMC, yi amfani da mahaɗa don ƙara wani adadin ruwan sanyi a cikin tukunyar sinadaran. Lokacin da aka fara mahaɗin, sannu a hankali kuma a ko'ina yayyafa carboxymethylcellulose cikin tanki mai sinadari, kuma a ci gaba da motsawa don haɗakar da carboxymethylcellulose gabaɗaya da ruwa kuma gaba ɗaya narkar da carboxymethylcellulose gaba ɗaya. Lokacin narkar da bututu jirgin, sau da yawa ya zama dole don tarwatsa shi a ko'ina kuma a ci gaba da motsawa don mafi kyawun "hana samuwar bututun bututu lokacin da ya ci karo da ruwa, rage matsalar rushewar jirgin ruwa" da kuma inganta narkewar katakon bututun. . Yawan rushe kwamitin gudanarwa.

Lokacin hadawa ya bambanta da lokacin da CMC ke ɗauka gaba ɗaya ya narke. Waɗannan ma'anoni biyu ne. Gabaɗaya, lokacin haɗuwa ya fi guntu fiye da lokacin cikakken rushewar CMC, dangane da takamaiman yanayin. An ƙayyade lokacin haɗawa bisa ga ma'auni na bayanai. Lokacin da CMC ke watsewa cikin ruwa daidai gwargwado ba tare da tsangwama ba, ana ƙare haɗawa don ba da damar CMC da ruwa su shiga juna.

Akwai dalilai da yawa na lokacin da ake buƙata don narkar da CMC gaba ɗaya:

(1) CMC da ruwa an haɗa su gaba ɗaya, kuma babu ƙaƙƙarfan kayan aikin rabuwa tsakanin su;

(2) Cakudar ta kasance iri ɗaya ce kuma mai santsi, kuma saman ta kasance santsi da ɗanɗano;

(3) Bayan an gauraya, manna ba shi da launi kuma a bayyane gaba ɗaya, kuma babu wani abu a cikin manna. Ana ɗaukar sa'o'i 10 zuwa 20 daga lokacin da aka sanya CMC a cikin cakuda tanki da ruwa har sai ya narke gaba daya.