Hydroxyethyl Cellulose Āhuatanga Tinana me te Matū
Nga ahuatanga o te ahua Ko tenei hua he ma ki te kowhai marama he kiko, he paura totoka ranei, he kore paitini me te reka
Ira whakarewa 288-290 °C (tikuri)
Kiato 0.75 g/mL i te 25 °C(marama)
Wairewa Ka whakarewahia ki te wai.Kore ki roto i nga whakarewa pararopi noa.He wairewa i roto i te wai matao me te wai wera, a, i te nuinga o te waa kaore e rewa i roto i te nuinga o nga whakarewa pararopi.Ka huri paku te pokey i te awhe o te uara PH 2-12, engari ka heke te pokey ki tua atu i tenei awhe.Kei a ia nga mahi o te whakapakeke, te aukati, te here, te whakaemulsifying, te whakamarara, me te pupuri i te makuku.Ka taea te whakarite otinga i roto i nga awhe pokey rereke.He tino pai te wairewa tote mo nga electrolytes.
I te mea he surfactant kore-katote, kei a hydroxyethyl cellulose nga ahuatanga e whai ake nei hei taapiri atu ki te whakamatotoru, ki te whakatarewa, ki te here, ki te maanu, ki te hanga kiriata, ki te marara, ki te pupuri i te wai me te whakarato i nga colloids whakamarumaru:
1. He wairewa te HEC i roto i te wai wera, te wai matao ranei, te teitei o te wera, te koropupuke ranei me te kore ua, na reira he maha nga ahuatanga o te whakarewatanga me te pokey, me te waiariki kore;
2. Karekau he katote, ka taea te noho tahi me te tini o etahi atu polymers wairewa-wairewa, surfactants, me nga tai.He pai rawa atu te whakamaarata colloidal mo nga otinga electrolyte teitei;
3. Ko te kaha o te pupuri i te wai e rua ake te teitei o te methyl cellulose, a he pai ake te whakahaere o te rere.
4. Ka whakatauritea ki te methyl cellulose me te hydroxypropyl methyl cellulose, ko te kaha marara o HEC te mea kino rawa atu, engari ko te kaha o te colloid tiaki te kaha.
Nga whakaritenga hangarau me nga paerewa kounga mo te hydroxyethyl cellulose
Tuemi: Taupū molar substitution (MS) 2.0-2.5 Makuku (%) ≤5 Wairewarewa (%) ≤0.5 PH uara 6.0-8.5 Te whakarewa taimaha (ug/g) ≤20 Ash (%) ≤5 Viscosity (mpa. s) 2% 20 ℃ wairewa wai 5-60000 mata (%) ≤0.001
Nga whakamahinga o te hydroxyethyl cellulose
【Whakamahia 1】 Ka whakamahia hei surfactant, te taherapa whakamaroke, te maataki whakamarumaru colloidal, te rewharewha o te hinu pakaru, te polystyrene me te polyvinyl chloride dispersant, etc.
[Whakamahia te 2] Ka whakamahia hei whakamatao me te whakaheke wai mo nga wai keri wai me nga wai whakaoti, a he tino kaha te whakapaoho i roto i nga wai keri tote.Ka taea hoki te whakamahi hei whakaheke wai mo te puna hinu sima.Ka taea te hono-whakawhiti ki nga katote whakarewa polyvalent hei hanga i te reera.
[Whakamahia 3] Ka whakamahia tenei hua hei dispersant polymeric mo te wai-wai-wai-wai-wai-wai-whakamahia te wai, te polystyrene me te polyvinyl chloride i roto i te keri pakaru.Ka taea hoki te whakamahi hei kaitao whakaehunga i roto i te ahumahi peita, he hygrostat i roto i te ahumahi hiko, he anticoagulant ciment me te makuku pupuri i roto i te ahumahi hanga.Ko te whakakoi i te ahumahi karaima me te whakapiringa toothpaste.Kei te whakamahia nuitia ki te ta me te waikano, nga kakano, te hanga pepa, te rongoa, te akuaku, te kai, te hikareti, te pesticides me te patu ahi.
[Whakamahia te 4] Ka whakamahia hei surfactant, hei tiaki colloidal, hei whakapumau emulsification mo te vinyl chloride, vinyl acetate me etahi atu emulsions, me te viscosifier, dispersant, me te dispersion stabilizer mo te latex.He nui te whakamahi i roto i te paninga, te muka, te tae, te hanga pepa, te whakapaipai, te rongoa, te pesticides, me etahi atu. He maha ano nga whakamahinga mo te torotoro hinu me te umanga miihini.
【Whakamahia 5】 Ko te hydroxyethyl cellulose nga mahi o te mahi mata, te whakapakeke, te whakatarewa, te herea, te whakaemulsifying, te hanga kiriata, te whakamarara, te pupuri wai me te whakamarumaru i roto i te rongoa totoka me te wai.
Nga tono o te hydroxyethyl cellulose
Ka whakamahia i roto i nga whakakikoruatanga hoahoanga, nga mea whakapaipai, te toothpaste, surfactants, te taherapa matotoru, nga kaihoko tiaki colloidal, te hinu pakaru hinu, te polystyrene me te polyvinyl chloride dispersants, etc.
Pepa Raraunga Haumaru Rauemi Hydroxyethyl Cellulose (MSDS)
1. Ko te hua te tupono o te pahū o te puehu.I te wa e whakahaere ana i nga rahinga nui, i te nuinga ranei, kia tupato ki te karo i te whakahekenga o te puehu me te whakatārewatanga i te rangi, kia matara atu i te wera, te korakora, te mura me te hiko pateko.2. Me karo i te paura methylcellulose kia kore e kuhu me te pa atu ki nga kanohi, ka mau i nga kopare tātari me nga kaata haumaru i te wa e mahi ana.3. He tino pahekeheke te hua i te wa e makuku ana, me horoi te paura methylcellulose kua maringi i roto i te waa me te maimoatanga anti-slip.
Te rokiroki me te kawe i nga ahuatanga o te hydroxyethyl cellulose
Taapiri: peeke papa-rua, peeke pepa hiato o waho, peeke kiriata polyethylene o roto, te taumaha kupenga 20kg, 25kg ranei mo ia peeke.
Te rokiroki me te kawe: Roopuhia ki tetahi waahi whai hau me te maroke i roto i te whare, ka aro ki te makuku.Te ua me te ra tiaki i te wa e kawe ana.
Te tikanga whakarite o te hydroxyethyl cellulose
Tikanga 1: Whakarewahia nga miro mata, te penupenu parakore ranei ki te 30% te rei, tangohia i muri i te hawhe haora, ka pehi.Pēhia kia tae rā anō te ōwehenga o te ihirangi alkali-wai ki te 1:2.8, ka neke ki te taputapu kuru mo te kuru.Kuhua te muka kawakore kua maru ki roto i te ipu hohenga.Ka hiritia, ka whakatahia, ka whakakiia ki te hauota.Whai muri i te whakakapi i te hau i roto i te ketere ki te hauota, pehia ki roto i te wai ethylene oxide kua whakamatao.Tauhohehia i raro i te whakamahana i te 25°C mo te 2 haora ki te tiki mai i te hydroxyethyl cellulose.Horoia te hua masivesivá ki te waipiro me te whakatika i te uara pH ki te 4-6 ma te taapiri i te waikawa ahetiki.Tāpirihia te glyoxal mo te hono-whakawhiti me te koroheketanga, ka horoi wawe ki te wai, ka mutu ka whakamarokehia, ka maroke, ka orohia kia whiwhi ai i te iti-tote hydroxyethyl cellulose.
Tikanga 2: Ko te cellulose alkali he polymer taiao, kei roto i ia mowhiti turanga muka e toru nga roopu hydroxyl, ko te roopu hydroxyl tino kaha ki te hanga i te hydroxyethyl cellulose.Waiwaihia nga papa o te miro mata, te penupenu parakore ranei ki roto i te 30% houra wai, tangohia ki waho ka pehi i muri i te hawhe haora.Kotēhia kia tae rā anō te ōwehenga o te wai kawakore ki te 1:2.8, kātahi ka kuru.Kuhua te cellulose alkali ki roto i te ketere tauhohenga, hiritia, whakakoruatia, whakakiia ki te hauota, ka whakahoki ano i te whakakoi me te whakakii hauota hei whakakapi katoa i te hau i roto i te ketere.Pēhia ki roto i te wai ethylene oxide i mua i te mataohia, hoatu he wai whakamatao ki roto i te koti o te hohenga hohenga, ka whakahaere i te tauhohenga i te 25°C mo te 2 haora kia whiwhi mai ai i te waikura hydroxyethyl cellulose.Ka horoia te hua ki te waipiro, ka whakahekehia ki te pH 4-6 ma te taapiri i te waikawa acetic, ka hono ki te glyoxal mo te koroheketanga.Katahi ka horoia ki te wai, ka whakamarokehia e te centrifugation, ka whakamarokehia, ka tukitukia kia whiwhi hydroxyethyl cellulose.Te kai mata (kg/t) te miro miro, te penupenu iti ranei 730-780 te houra wai (30%) 2400 te ethylene oxide 900 te waipiro (95%) 4500 te waikawa acetic 240 te glyoxal (40%) 100-300
Ko te Hydroxyethyl cellulose he paura ma, kowhai kowhai ranei kaore he kakara, he kore reka, he ngawari te rere, he wairewa i roto i te wai matao me te wai wera, te tikanga karekau i roto i te nuinga o nga whakarewa pararopi.
Ko te Hydroxyethyl cellulose (HEC) he ma, he kowhai marama ranei, he hongi, he kirikiri, he paura totoka kore-paitini, he mea whakarite ma te tauhohenga etherification o te cellulose alkaline me te ethylene oxide (te chlorohydrin ranei).Ko nga etera cellulose wairewa nonionic.Na te mea he pai nga ahuatanga o te HEC mo te whakapakeke, te aukati, te whakamarara, te whakaemulsifying, te honohono, te hanga kiriata, te tiaki i te makuku me te whakarato colloid tiaki, kua whakamahia nuitia ki te torotoro hinu, paninga, hanga, rongoa, kai, pueru, pepa me te polymer Polymerization me etahi atu mara.40 reiti tatari mata ≥ 99%;te mahana marumaru: 135-140°C;kiato kitea: 0.35-0.61g/ml;te pāmahana pirau: 205-210°C;tere tahu puhoi;pāmahana taurite: 23°C;50% 6% i te rh, 29% i te 84% rh.
Me pehea te whakamahi i te hydroxyethyl cellulose
taapiri tika i te wa whakaputa
1. Taapirihia he wai ma ki roto i te peere nui e mau ana ki te whakaranu kutikuti teitei.te
Hydroxyethyl cellulose
2. Tīmata ki te kōrori i te tere iti, ka ata tatari i te hydroxyethyl cellulose ki roto i te otinga.te
3. Me whakaoho tonu kia ruku nga matūriki katoa.te
4. Katahi ka taapirihia he kaihoko whakamarumaru uira, nga taapiri taketake penei i te poaka, nga awhina whakamarara, te wai haukini.te
5. Oho kia rewa katoa te hydroxyethyl cellulose (ka tino piki te pokey o te otinga) i mua i te taapiri i etahi atu waahanga ki roto i te tauira, ka huri kia oti ra ano te hua.
Ka mau ki te waipiro whaea
Ko tenei tikanga ko te whakarite i te waipiro whaea me te kukū teitei i te tuatahi, katahi ka taapiri atu ki te peita taherapa.Ko te painga o tenei tikanga he nui ake te ngawari, ka taea te taapiri tika ki te peita kua oti, engari me penapena pai.He rite nga hikoi ki nga Hipanga 1-4 i te Tikanga 1, ko te rerekee ko te kore he take ki te whakakorikori kia rewa katoa ki roto i te wairewa viscous.
Pareti mo te phenology
I te mea he ngoikore nga whakarewa pararopi mo te hydroxyethyl cellulose, ka taea te whakamahi enei whakarewa pararopi ki te whakarite i te pareti.Ko nga wairewa pararopi e whakamahia nuitia ana ko te wai pararopi penei i te ethylene glycol, propylene glycol me nga mea hanga kiriata (pērā i te ethylene glycol, diethylene glycol butyl acetate ranei) i roto i te hanga peita.He ngoikore hoki te wai tio, no reira ka whakamahia tahi te wai tio me nga wai pararopi hei taka pareti.Ko te hydroxyethyl cellulose o te pāreti ka taea te taapiri tika ki te peita, kua wehea te hydroxyethyl cellulose me te pupuhi i roto i te pareti.Ina tapirihia ki te peita, ka memeha tonu, ka mahi ano hei whakakaha.Whai muri i te taapiri, me whakaoho tonu kia rewa te hydroxyethyl cellulose me te rite.Ko te tikanga, ka mahia te pareti ma te whakaranu i nga wahanga e ono o te whakarewa pararopi, te wai hukapapa ranei me tetahi waahanga o te hydroxyethyl cellulose.I muri tata ki te 6-30 meneti, ka whakamarohia te hydroxyethyl cellulose ka tino pupuhi.I te raumati, he tiketike rawa te pāmahana o te wai, no reira kaore e pai ki te whakamahi i te pareti.
Whakatupato mo te hydroxyethyl cellulose
I te mea he paura, he totoka ranei te cellulose hydroxyethyl cellulose, he ngawari ki te hapai me te memeha i roto i te wai mena ka arohia nga mea e whai ake nei.te
1. I mua, i muri i te taapiri i te hydroxyethyl cellulose, me whakaoho tonu kia tino marama, kia marama te otinga.te
2. Me ata tatari ki roto i te taika ranu, kaua e whakauru tika i te nui o te hydroxyethyl cellulose, te hydroxyethyl cellulose ranei kua hanga kapia me nga poi ki roto i te tank whakaranu.3. Ko te pāmahana wai me te uara PH i roto i te wai he tino hononga ki te whakakorenga o te hydroxyethyl cellulose, no reira me aro nui.te
4. Kaua e taapiri etahi matū kawakore ki te ranunga i mua i te whakamahanatanga o te paura hydroxyethyl cellulose i roto i te wai.Ko te whakanui ake i te uara pH i muri i te whakamahana ka awhina i te memeha.te
5. I te mea e taea ana, taapirihia he kaihoko anti-fungal i te wa e taea ai.te
6. I te wa e whakamahi ana i te hydroxyethyl cellulose teitei, ko te kukū o te waipiro whaea kia kaua e teitei ake i te 2.5-3%, mena ka uaua te hapai i te waipiro whaea.Ko te hydroxyethyl cellulose i muri i te maimoatanga he mea ngawari ki te hanga kapia, poipoi ranei, kare ano hoki e hanga i nga colloid porowhita korekore i muri i te taapiri wai.
Kei te te tikanga whakamahia te reira rite te thickener, māngai tiaki, whakapiringa, stabilizer me te tāpiritanga mo te faaineineraa o te whakaehunga, tiēre, hinu, hinu, horoi kanohi, suppository me te papa, a ka whakamahia hoki rite te wai wairere me te kōhiwi rauemi 1. Te faaineineraa o te kōhiwi- momo whakaritenga toi-tuku-tuku.Ka taea hoki te whakamahi hei whakapumau i te kai.
Wā tuku: Feb-02-2023