Heerka rinjiyeynta HEC

Heerka rinjiga HEC Hydroxyethyl cellulose waa nooc ka mid ah polymer-ka aan-ionic-ka ahayn ee biyaha-milmi kara, budo cad ama huruud ah, si sahlan loo qulquli karo, ur aan lahayn oo aan dhadhan lahayn, waxay ku milmi kartaa labadaba qabow iyo biyo kulul, iyo heerka kala diriddu waxay kordhisaa heerkulka, guud ahaan lama milmi karo inta badan dareerayaasha organic. Waxay leedahay xasillooni PH wanaagsan iyo isbeddel yar oo viscosity ah oo u dhexeeya ph2-12. HEC waxay leedahay iska caabin milixeed sare leh iyo awooda hygroscopic, waxayna leedahay haynta biyaha hydrophilic oo xoogan. Xalka aqueous wuxuu leeyahay dhaqdhaqaaqa dusha sare iyo alaabta viscosity sare waxay leeyihiin pseudoplasticity sare. Waxaa lagu samayn karaa filim hufan oo anhydrous leh oo leh awood dhexdhexaad ah, oo aan si sahlan u wasakheynin saliidda, ma saameynayso iftiinka, weli wuxuu leeyahay HEC filim biyo-milmi leh. Daaweynta dusha ka dib, HEC way kala firdhisaa oo kuma midowdo biyaha, laakiin si tartiib ah ayay u milaan. PH waxaa lagu hagaajin karaa 8-10 oo si degdeg ah u milma.

Guryaha ugu muhiimsan

Hydroxyethyl cellulose (HEC) waa in lagu milmi karo biyo qabow iyo biyo kulul, oo aan lahayn sifooyin jel ah. Waxay leedahay beddelaad ballaadhan, milmayn iyo viscosity. Waxay leedahay xasillooni kuleyl oo wanaagsan (ka hooseeya 140 ° C) oo kuma soo saarto xaaladaha acidic. roobab. Xalka hydroxyethyl cellulose (HEC) wuxuu samayn karaa filim hufan, kaas oo leh sifooyin aan-ionic ahayn oo aan la falgelin ion oo leh iswaafajin wanaagsan.

Sida kolloid ilaalin ah, heerka rinjiga HEC waxaa loo isticmaali karaa vinyl acetate emulsion polymerization si loo hagaajiyo xasilloonida nidaamka polymerization ee kala duwan PH ballaaran. In wax soo saarka ee alaabta la dhammeeyey si ay u sameeyaan midabka, filler iyo daro kale si siman u kala firdhiyey, xasilloon oo ay bixiyaan saamayn dhumuc. Waxa kale oo loo isticmaali karaa styrene, acrylic, acrylic iyo polymers kale oo la hakiyey sida firdhiyo, oo loo isticmaalo rinjiga cinjirka ayaa si weyn u wanaajin kara dhumucda, hagaajinta waxqabadka.

Tilmaamaha Kiimikada

Alaabta Darajooyinka 

Habka codsiga ee hydroxyethyl cellulose HEC ee biyaharinji

1. Si toos ah ugu dar marka aad shiidi lahayd midabka: habkani waa kan ugu fudud, wakhtiga la isticmaalayna waa gaaban yahay. Tillaabooyinka faahfaahsan waa sida soo socota:

(1) Ku dar biyo sifaysan oo ku habboon VAT ee kicinta sare ee goynta (guud ahaan, ethylene glycol, wakiilka qoynta iyo wakiilka samaynta filimada ayaa lagu daray wakhtigan)

(2) Ku billow inaad ku walaaqdo xawaare hooseeya oo si tartiib ah ugu dar hydroxyethyl cellulose

(3) Sii wad inaad walaaqdo ilaa dhammaan qaybaha ay qooyaan

(4) ku dar caariyaysiyaha caariyaysiga, PH nidaamiyaha, iwm

(5) Ku walaaq ilaa dhammaan cellulose hydroxyethyl ay si buuxda u milmaan (viskosity ee xalka ayaa si weyn u kordhay) ka hor intaadan ku darin qaybaha kale ee caanaha, oo shiid ilaa uu noqdo rinji.

2. Waxaa lagu qalabeeyaa dareeraha hooyada: habkan marka hore waxaa lagu qalabeeyaa dareeraha hooyada oo aad u sarreeya, ka dibna ku dar rinjiga cinjirka ah, faa'iidada habkani waa dabacsanaan weyn, si toos ah ayaa loogu dari karaa rinjiga alaabta la dhammeeyey, laakiin waa inuu ahaadaa kayd ku habboon. . Tallaabooyinka iyo hababku waxay la mid yihiin tillaabooyinka (1) - (4) ee Habka 1, marka laga reebo in kicinta sare ee goynta aan loo baahnayn oo kaliya qaar ka mid ah kicinta oo leh awood ku filan si ay u ilaaliso fiilooyinka hydroxyethyl si siman u kala firirsan xalka ayaa ku filan. Sii wad walaaq ilaa uu si buuxda u milmo xal qaro weyn. Ogsoonow in caariyaysiga caariyaysigu ay tahay in lagu daro khamriga hooyada sida ugu dhakhsaha badan.

3. Boorash sida phenology: Maadaama dareerayaasha organic ay yihiin dareerayaasha xun ee hydroxyethyl cellulose, dareerayaashan organic waxaa lagu qalabayn karaa boorash. Walxaha ugu badan ee la isticmaalo sida ethylene glycol, propylene glycol, iyo walxaha samaynta filimada (sida hexadecanol ama diethylene glycol butyl acetate), biyaha barafku sidoo kale waa dareere liidata, sidaas awgeed biyaha barafka waxaa badanaa lagu isticmaalaa dareerayaasha organic ee boorashka. Gruel - sida hydroxyethyl cellulose si toos ah ayaa loogu dari karaa rinjiga. Hydroxyethyl cellulose ayaa lagu dheregsan yahay qaab boorash. Ka dib marka lagu daro lacquer, isla markiiba milaan oo saameyn dhumuc leh. Ka dib markaad ku darto, sii wad inaad walaaqdo ilaa hydroxyethyl cellulose si buuxda u milmo iyo labbis. Boorashka caadiga ah waxaa la sameeyaa iyadoo lagu qaso lix qaybood oo dareere organic ah ama biyo baraf ah qayb ka mid ah hydroxyethyl cellulose. Qiyaastii 5-30 daqiiqo ka dib, heerka rinjiga ee HEC hydrolyzes oo si muuqata u kaca. Xilliga xagaaga, qoyaanka biyuhu aad buu u sarreeyaa si loogu isticmaalo boorash.

4. Arrimaha u baahan fiiro gaar ah marka la qalabeynayo hydroxyethyl cellulose khamriga hooyada:

Pdigtoonaan

1 Kahor iyo ka dib marka lagu daro heerka rinjiga HEC, waa in si joogto ah loo walaaqaa ilaa uu xalku si buuxda u daahsoon yahay oo cad yahay.

2. Si tartiib ah ugu miir hydroxyethyl cellulose haanta isku darka. Ha ku darin haanta isku-darka xaddi badan ama si toos ah ha u galin bul ama spherical fasalka rinjiga HEC.

Heerkulka biyaha 3 iyo qiimaha pH ee biyuhu waxay leeyihiin xidhiidh cad oo la xidhiidha kala dirida heerka rinjiga HEC hydroxyethyl cellulose, markaa fiiro gaar ah waa in la siiyaa.

Ha ku darin qaar ka mid ah walaxda aasaasiga ah isku dhafka ka hor inta aan la qooyayn budada Rinjiga HEC hydroxyethyl cellulose budada biyo. Kor u qaadista pH ka dib marka la qooyo waxay caawisaa milanka.

5 .Inta suurtogalka ah, goor hore oo lagu daro caariyaysiyaha.

6 Markaad isticmaalayso viscosity sare heerka rinjiga HEC, uruurinta khamriga hooyadu waa inuusan ka badnaan 2.5-3% (miisaan ahaan), haddii kale khamriga hooyadu way adagtahay in la qalo.

Waxyaabaha saameeya viscosity ee rinjiga cinjirka

1.The more haraaga xumbo hawada ee rinjiga, sare viscosity.

2.Qaddarka firfircoonida iyo biyaha ku jira caanaha rinjiga ma yihiin kuwo joogto ah?

3 ee isku dhafka cinjirka, ka kooban hadhaaga oksaydhka ee qaddarka.

4. Qiyaasta dhumucyada kale ee dabiiciga ah ee caanaha rinjiga iyo saamiga qiyaasta rinjiga HEC.)

5.in habka samaynta rinjiga, nidaamka tallaabooyinka lagu daro dhumucdiisuna waa ku habboon yahay.

6.Sababtoo ah kacsanaan xad-dhaaf ah iyo huurka xad-dhaafka ah inta lagu jiro kala-firdhinta.

7.Nabaadguurka microbial ee dhumucda.

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