Momwe mungaweruzire mtundu wa cellulose kuchokera ku phulusa la hydroxypropyl methylcellulose pambuyo pa kuyaka

Choyamba, tiyenera kumvetsa chimene phulusa:

01. Phulusa lomwe lili ndi phulusa limatchedwanso zotsalira zoyaka, zomwe zitha kumveka ngati zonyansa zomwe zili muzinthuzo.Idzapangidwa mwachilengedwe panthawi yopanga.Pambuyo mankhwala amatuluka riyakitala etherification, izo kulowa neutralization thanki.Mu thanki ya neutralization, pH mtengo umasinthidwa kuti ukhale wosalowerera, ndiyeno madzi otentha amawonjezeredwa kuti azitsuka.Madzi otentha kwambiri amawonjezedwa , Kutsuka, nthawi zambiri zotsuka, kuchepetsa phulusa, ndi mosemphanitsa.

02. Kukula kwa phulusa kumasonyezedwanso mu chiyero cha cellulose, kumtunda kwa chiyero, kuchepa kwa phulusa pambuyo poyaka!

Kenako, tiyeni tiwunikenso zambiri zomwe timapeza pakuwotcha kwa hydroxypropyl methylcellulose.

Choyamba: Kuchepa kwa phulusa, kumakhala kokwera kwambiri

Zosankha za kuchuluka kwa zotsalira za phulusa:

(1) Ubwino wa zinthu zopangira ma cellulose (thonje woyengedwa): Nthawi zambiri, thonje loyengedwa bwino likakhala kuti lili bwino, ka cellulose kamakhala koyera, kumapangitsa kuti phulusa likhale labwino komanso kusunga madzi.

(2) Kuchuluka kwa nthawi zotsuka: padzakhala fumbi ndi zonyansa muzinthu zopangira, nthawi zambiri zotsuka, phulusa lazinthu zomalizidwa pambuyo poyaka.

(3) Kuwonjezera zinthu zing'onozing'ono kuzinthu zomalizidwa kumabweretsa phulusa lalikulu pambuyo poyaka

(4) Kulephera kuchita bwino pakupanga zinthu kudzakhudzanso phulusa la cellulose

(5) Pofuna kusokoneza masomphenya a aliyense, opanga ena amawonjezera chiwopsezo cha kuyaka kwa icho, ndipo sipadzakhala pafupifupi phulusa pambuyo pa kuwotcha.Imayaka kwathunthu, koma mtundu utatha kuyaka udakali wosiyana kwambiri ndi ufa woyera.

Chachiwiri: kutalika kwa nthawi yoyaka:

Ma cellulose okhala ndi chiwopsezo chabwino chosungira madzi amawotcha kwa nthawi yayitali, ndipo mosiyana ndi kuchuluka kwamadzi ocheperako.