Me pehea te whakamahi Hydroxyethyl cellulose ki te peita taherapa?

Hydroxyethyl celluloseka whakamahia nuitia ki te peita taherapa, peita whakaehunga me nga paninga, me pehea te whakamahi Hydroxyethyl cellulose ki te peita taherapa?

1. Taapiri tika atu ki te poaka abrasive

Ko tenei tikanga te mea ngawari me te wa poto. Ko nga waahanga taipitopito e whai ake nei:

(1) Tāpirihia he wai parakore tika ki te ipu o te kaitahuri tapahi teitei (i te nuinga o te waa, ka taapirihia te ethylene glycol, te makuku me te kaihoko hanga kiriata i tenei wa)

(2) Tīmatahia te kōrori i te tere iti ka āta tāpirihia te hydroxyethyl cellulose

(3) whakaohokia tonu kia makuku katoa nga matūriki

(4) Te taapiri i te aukati koriri, te whakatika pH, aha atu.

(5)Oho kia tae noa ki te hydroxyethyl cellulose katoakua tino memeha (ka tino whakanuia te viscosity o te otinga) i mua i te taapiri i etahi atu waahanga i roto i te hanga me te huri huri tae noa ki te hanganga o te lacquer.

2. ka mau ki te waipiro whaea

Ko tenei tikanga ka whakauruhia ki te nui ake o te waipiro whaea, 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 tika. He rite nga hikoi me nga tikanga ki nga hikoi (1)-(4) i te Tikanga 1, engari kaore e hiahiatia kia teitei te whakakorikori, a ko te whakakorikori anake e whai mana ana kia noho rite nga muka hydroxyethyl i roto i te otinga ka whakamahia. . taea. Me whakaoho tonu kia rewa katoa ki roto i te wairewa viscous. Me tohu ko te aukati i pokepokea ai me whakauru wawe ki te waipiro whaea.

3. me te pāreti

I te mea ko te whakarewa pararopi he whakarewa kino mo te hydroxyethyl cellulose, ka taea te whakamahi i enei whakarewa pararopi ki te whakarato i te pāreti. Ko nga whakarewa pararopi e whakamahia nuitia ana penei i te ethylene glycol, propylene glycol, me nga kaihanga kiriata (pēnei i te hexane, diethylene glycol butyl acetate ranei), he waikore te wai tio, no reira ka whakamahia te wai hukapapa me nga wai pararopi. pāreti. Ko te pāreti-rite hydroxyethyl cellulose ka taea te taapiri tika ki te peita. Ko te Hydroxyethyl cellulose kua tino whakamakuku ki roto i te pāreti. Ina tāpirihia ki te peita, ka memeha tonu, ka mātotoru. I muri i te taapiri, he mea tika kia whakaoho tonu kia rewa katoa te hydroxyethyl cellulose me te riterite. Ko te tikanga, ka konatunatua te pāreti ki tetahi wahi o te whakarewa pararopi, wai hukapapa ranei me tetahi wahanga o te hydroxyethyl cellulose. I muri tata ki te 5 ki te 30 meneti, ka whakamarohia te hydroxyethyl cellulose ka tino piki ake. I te nuinga o te waa, he nui rawa te makuku o te wai i te raumati, kaua e whakamahia mo te pareti.

4. Whakatupato ina whakamahi waipiro whaea hydroxyethyl cellulose

Mai i te hydroxyethyl cellulose(HEC)he papura kua oti te rongoa, he ngawari ki te hapai me te memeha ki roto i te wai mena ka tuhia nga mea e whai ake nei.

(1) I mua, i muri i te taapiri o te hydroxyethylcellulose, me haere tonu te whakaoho kia tino marama, kia marama te otinga.

(2) Me ata tatari ki roto i te tank ranu. Kaua e taapirihia te hydroxyethyl cellulose kua hanga ki roto i te poraka me te hanga porowhita ki roto i te tank whakaranu.

(3) Ko te pāmahana wai me te uara pH i roto i te wai he hononga nui ki te whakakorenga o te hydroxyethyl cellulose, me te tiaki motuhake.

(4) Kaua e taapiri etahi matū kawakore ki te ranunga i mua i te whakamakuku i te paura hydroxyethyl cellulose e te wai. Ko te whakanui ake i te pH i muri i te ruku ka awhina ki te memeha.

(5) Tāpirihia nga aukati pokepokea i te wa e taea ai.

(6) A, no te whakamahi i te pokey tiketike hydroxyethyl cellulose, ko te kukū o te waipiro whaea kia kaua e teitei ake i te 2.5-3% (ma te taumaha), ki te kore he uaua ki te hapai i te waipiro whaea.