Focus on Cellulose ethers

O le a le Hydroxyethyl cellulose?

O le a le Hydroxyethyl cellulose?

O le Hydroxyethyl cellulose (HEC) o se lanu pa'epa'e po'o le lanu samasama, e leai se manogi, e le oona po'o se pa'u pa'u malo, saunia e ala i le etherification tali ole alkaline cellulose ma le ethylene oxide (po'o le chlorohydrin).
1. Faatonuga
1.1 faʻaopoopo saʻo ile taimi ole gaosiga

1. Fa'aopopo vai mama i se pakete tele ua fa'apipi'iina i se mea fa'afefiloi sele maualuga.

2. Amata ona fa'aoso fa'aauau i le saosaoa maualalo ma fa'amalie lemu le hydroxyethyl cellulose i totonu o le vaifofo tutusa.

3. Fa'aauau pea le fa'aoso seia o'o ina fa'asusu uma vaega.

4. Ona faaopoopo lea o le antifungal agent, alkaline additives e pei o pigments, dispersing aids, ammonia water.

5. Fa'aoso seia mae'a uma le hydroxyethyl cellulose (o le viscosity o le vaifofo e fa'atupula'ia tele) a'o le'i fa'aopoopoina isi vaega i le fua, ma olo seia mae'a.

1.2 Saunia ma le ava malosi

O lenei metotia o le saunia muamua o le ava malosi maualuga, ona faʻaopopo lea i le vali latex. O le lelei o lenei metotia e sili atu le fetuutuunai ma e mafai ona faʻaopoopo saʻo i le vali maeʻa, ae tatau ona teuina lelei. O laasaga e tutusa ma Laasaga 1-4 i le Metotia 1, o le eseesega e le manaʻomia ona faʻafefe seʻia oʻo ina faʻamavae atoa i se vaifofo viscous.

O lenei metotia o le saunia muamua o le ava malosi maualuga, ona faʻaopopo lea i le vali latex. O le lelei o lenei metotia e sili atu le fetuutuunai ma e mafai ona faʻaopoopo saʻo i le vali maeʻa, ae tatau ona teuina lelei. O laasaga e tutusa ma Laasaga 1-4 i le Metotia 1, o le eseesega e le manaʻomia ona faʻafefe seʻia oʻo ina faʻamavae atoa i se vaifofo viscous.

 

2.Porridge mo phenology
Talu ai solvents organic o solvents leaga mohydroxyethyl cellulose, e mafai ona faʻaaogaina nei solvents organic e saunia ai le paluga. O vai e sili ona masani ona fa'aaogaina o vai fa'aola e pei o le ethylene glycol, propylene glycol ma mea fai ata tifaga (e pei o le ethylene glycol po'o le diethylene glycol butyl acetate) i totonu o vali. O le vai aisa ose mea leaga fo'i e fa'afefeteina, o lea e masani ona fa'aoga ai le vai aisa fa'atasi ma vai fa'aola e saunia ai le polo. O le hydroxyethyl cellulose o le porridge e mafai ona faʻapipiʻi saʻo i le vali, ma o le hydroxyethyl cellulose ua vaevaeina ma fulafula i totonu o le pusa. Pe a faʻaopoopo i le vali, e faʻamavae vave ma galue e pei o se mafiafia. A mae'a ona fa'aopoopo, fa'aoso pea se'ia mae'a fa'amavae atoa le cellulose o le hydroxyethyl ma tutusa. E masani lava, o le paluga e faia e ala i le faʻafefiloi o vaega e ono o le solvent organic poʻo le vai aisa ma le tasi vaega ole hydroxyethyl cellulose. A maeʻa le 6-30 minute, o le hydroxyethyl cellulose o le a faʻafefeteina ma fulafula manino. I le taumafanafana, o le vevela o le vai e masani lava ona maualuga tele, o lea e le talafeagai ai le faʻaaogaina o porridge.
3.Application fanua

Hydroxyethyl cellulose Fa'aaogaina e pei o mea fa'apipi'i, surfactants, colloidal protective agents, dispersants, etc.
O loʻo i ai le tele o faʻaoga i le vali, vali, fiber, vali, faʻailoga pepa, mea teuteu, vailaau faʻasaina, gaosiga o minerale, suauʻu toe faʻaleleia, ma vailaʻau.

1. Hydroxyethyl cellulose e masani ona faʻaaogaina e avea o se mafiafia, mea puipui, faʻapipiʻi, faʻamautu ma faʻaopoopoga mo le saunia o le emulsion, jelly, suauu, lotion, faʻamama mata, suppository ma papa, ma faʻaaogaina foi e pei o le hydrophilic gel ma skeleton Mea, sauniuniga o matrix-type sustained-release sauniuniga, ma e mafai foi ona faʻaaogaina e fai ma faʻamautu i meaʻai.

2. Hydroxyethyl cellulose Faʻaaogaina e avea o se sizing agent i le fale gaosi oloa, ma e avea o se sui fesoasoani mo le fusia, mafiafia, emulsifying, ma le faʻamautuina i le eletise ma le vaega o alamanuia mama.

3. E faʻaaogaina e pei o le mafiafia ma le faʻaitiitia o le sua o le vai mo le sua o le vai ma le faʻamaeʻaina o le vai, ma o le aʻafiaga o le mafiafia e iloagofie i le sua o le sua. E mafai fo'i ona fa'aaogaina e fa'aitiitiga le sua o le suau'u sima. E mafai ona feso'ota'i fa'atasi ma ion u'amea polyvalent e fai ai se gel.

4. Hydroxyethyl cellulose oloa o loʻo faʻaaogaina e avea o se faʻasalalau mo le polymerization o le suauʻu vai faʻavae gel fracturing vai, polystyrene ma polyvinyl chloride, ma isi e ala i gau. E mafai foʻi ona faʻaaogaina e avea o se emulsion mafiafia i totonu o le fale vali, o se hygrostat i totonu o mea tau eletise, o se anticoagulant sima ma se mea e taofiofia le susu i le fale faufale. Alamanuia tioata tioata ma fusi fulunifo. E faʻaaogaina lautele foi i le lolomiina ma le vali, ie, pepa, vailaʻau, tumama, meaʻai, sikaleti, vailaʻau faʻamaʻi ma mea e tineia afi.

5. E pei o le surfactant, colloidal puipuiga sooupu, emulsification stabilizer mo vinyl chloride, vinyl acetate ma isi emulsions, faapea foi ma le latex tackifier, dispersant, dispersion stabilizer, ma isi. Faʻaaoga lautele i coatings, fiber, vali, fai pepa, cosmetics, vailaau faʻamaʻi, vailaau faʻasaina. , ma isi. E tele fo'i fa'aoga i su'esu'ega suau'u ma alamanuia masini.

6. O le hydroxyethyl cellulose o loʻo i ai i luga o le tino, faʻafefeteina, faʻagata, fusifusia, emulsifying, faʻapipiʻi ata, faʻasalalau, faʻapipiʻiina o vai ma galuega puipuia i vailaʻau faʻamalosi ma vai.

7. E faʻaaogaina e avea o se polymeric dispersant mo le faʻaogaina o le suauʻu vai faʻavae gel fracturing vai, polyvinyl chloride ma polystyrene. E mafai foʻi ona faʻaaogaina e avea o se emulsion mafiafia i totonu o le fale vali, o se sima anticoagulant ma le susu faʻamau i totonu o fale faufale, o se mea faʻapipiʻi tioata ma se mea faʻapipiʻi toothpaste i totonu o le alamanuia sima. E faʻaaogaina lautele foʻi i fanua faʻapisinisi e pei o le lolomiina ma le vali, ie, pepa, vailaʻau, tumama, meaʻai, sikaleti ma vailaau faʻasaina.


Taimi meli: Ian-21-2023
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