Kiimikada maalinlaha ah ee hydroxypropyl methyl cellulose

Heerka maalinlaha ah ee kiimikaad hydroxypropyl methyl cellulose waa polymer synthetic ah oo lagu diyaariyay wax ka beddel kiimikaad ee cellulose dabiiciga ah sida walxo ceeriin ah. Eter cellulose waa nooc ka mid ah cellulose dabiiciga ah, wax soo saarka ether cellulose iyo polymer synthetic waa ka duwan yahay, qalabkeeda ugu aasaasiga ah waa cellulose, ka samaysan polymer dabiici ah. Sababtoo ah sida gaarka ah ee qaab dhismeedka cellulose dabiiciga ah, cellulose lafteedu awood uma laha inay ka falceliyaan wakiilada etherifying. Si kastaba ha ahaatee, ka dib daawaynta wakiilka bararka, bonds hydrogen xoog u dhexeeya iyo gudahood silsiladaha kelli waa la burburiyaa, iyo waxqabadka kooxda hydroxyl waxaa lagu sii daayay galay cellulose alkali leh fal-celin. Ka dib falcelinta wakiilka etherifying, kooxda -OH waxaa loo beddelaa -OR koox si ay u helaan ether cellulose.

Kiimikada maalinlaha ah ee gaarka ah 200 kun viscosity degdeg ah hydroxypropyl methyl cellulose waa budo cad ama wax yar huruud ah, iyo ur aan ur lahayn, dhadhamin, aan sun ahayn. Ku milmay isku dhafka biyaha qabow iyo dareerayaasha organic si ay u sameeyaan xal hufan. Xalka biyuhu wuxuu leeyahay dhaqdhaqaaqa dusha sare, daahfurnaanta sare, xasilloonida xooggan, milanka biyaha ma saameynayso pH. Saamaynta dhumucda iyo barafka ka-hortagga ee shaambada iyo maydhista jidhka, haynta biyaha iyo samaynta filimada wanaagsan ee timaha iyo maqaarka. Iyada oo korodhka weyn ee alaabta ceeriin ee aasaasiga ah, cellulose (kaadi-freeze dhumucdiisuna) waxaa loo isticmaali karaa shaambo iyo maydhista jirka waxay si weyn u dhimi kartaa kharashka waxayna gaari kartaa natiijooyinka la rabo.

1. Astaamaha iyo faa'iidooyinka kiimikaad maalinlaha ah ee cellulose cellulose:

1, xanaaq hoose, heerkulka sare iyo galmada;

2, tiro balaadhan oo ah xasiloonida pH, ee qiimaha pH ee 3-11 waxay xaqiijin kartaa xasilloonideeda;

3. Kordhinta xoojinta caqligalka;

4. Kordhi xumbo, deji xumbo, wanaaji dareenka maqaarka;

5. Si wax ku ool ah u wanaaji qulqulka nidaamka.

2 maalin kasta oo kiimiko ah cellulose baaxadda codsiga HPMC:

Loo isticmaalo shaambo, maydhista jidhka, nadiifiyaha wejiga, labeenta, kareemka, jel, toner, conditioner, alaabta qaabaynta, daawada cadayga, biyaha, biyaha xumbo.

3 Doorka maalinlaha ah ee fasalka cellulose ee kiimikaad HPMC:

Codsiga waxyaabaha la isku qurxiyo, waxaa inta badan loo isticmaalaa dhumucdiisuna, xumbo, emulsification deggan, kala firidhsan, adhesion, samaynta filimada iyo hagaajinta waxqabadka biyaha, alaabta viscosity sare waxaa loo isticmaalaa sida dhumuc, alaabta viscosity hoose waxaa inta badan loo isticmaalaa sida kala firidhsan ganaax iyo samaynta filimka. .

4 maalinle ah tignoolajiyada HPMC ee cellulose heerka kiimikada:

Hydroxypropyl methyl fiber si ay ula qabsadaan viscosity ee warshadaha kiimikada inta badan waa 100 kun, 150 kun, 200 kun, sida ay formula iyaga u gaar ah si ay u doortaan qadarka ku daray in alaabta guud ahaan waa saddex ilaa shan kun.