Ọna itusilẹ ti hydroxypropyl methylcellulose (HPMC)

Ọna itusilẹ ti hydroxypropyl methylcellulose (HPMC)

Hydroxypropyl methylcellulose (HPMC) jẹ lilo pupọ ni awọn ohun elo ikole, awọn aṣọ, awọn resini sintetiki, awọn ohun elo amọ, oogun, ounjẹ, awọn aṣọ, iṣẹ-ogbin, awọn ohun ikunra, taba ati awọn ile-iṣẹ miiran. Hydroxypropyl methylcellulose (HPMC) jẹ ether cellulose ti kii-ionic ti a ṣe lati cellulose ohun elo polima adayeba nipasẹ lẹsẹsẹ awọn ilana kemikali. Hydroxypropylmethylcellulose (HPMC) jẹ alainirun, ailadun, lulú funfun ti ko ni majele ti o le tuka ninu omi tutu lati ṣe ojuutu viscous ti o han gbangba. O ni awọn abuda ti o nipọn, abuda, pipinka, emulsifying, film-forming, suspending, adsorbing, gelling, dada ti nṣiṣe lọwọ, mimu ọrinrin ati idaabobo colloid.

Ọna itusilẹ ti hydroxypropyl methylcellulose (HPMC):

Ọja yii wú o si tuka ninu omi gbona ju 85 ° C lọ, ati pe o maa n tuka nipasẹ awọn ọna wọnyi:

1. Mu 1/3 ti iye ti a beere fun omi gbona, aruwo lati tu ọja ti a fi kun patapata, lẹhinna fi iyokù omi gbona kun, eyi ti o le jẹ omi tutu, tabi paapaa omi yinyin, ki o si mu titi di iwọn otutu ti o yẹ (20). °C), lẹhinna o yoo jẹ titu patapata. awọn

2. Idapọ gbigbẹ ati dapọ:

Ni ọran ti dapọ pẹlu awọn powders miiran, o yẹ ki o wa ni kikun pẹlu awọn powders ṣaaju ki o to fi omi kun, lẹhinna o le ni tituka ni kiakia laisi agglomeration. awọn

3. Ọnà rirọ epo olomi-ara:

Ni akọkọ tuka ọja naa sinu epo-ara Organic tabi tutu rẹ pẹlu ohun elo Organic, lẹhinna fi kun si omi tutu lati tu daradara.