Te pūhui hauwaioraitiri (HEC), he mā, he kōwhai mārama rānei, kāore he kakara, he totoka muka, he paura rānei, kāore e paitini, i hangaia mā te whakaetere i te cellulose kawakore me te ethylene oxide (chlorohydrin rānei), nō te momo Nonionic soluble cellulose ethers. Nā te mea he pai ngā āhuatanga o te HEC ki te whakamātotoru, te whakatārewatanga, te horapa, te whakaemulsifying, te here, te hanga kiriata, te tiaki i te makuku me te whakarato i ngā colloid tiaki, kua whānuitia te whakamahinga i roto i te tūhuratanga hinu, te paninga, te hanga, te rongoā me te kai, te kakahu, te hanga pepa me ngā polymer. Polymerization me ētahi atu mara.
I muri i te tūtakitanga o te hydroxyethyl cellulose ki te peita wai-hāngai?
Hei matū horoi kore-ionic, kei te hydroxyethyl cellulose ēnei āhuatanga e whai ake nei, hei tāpiri atu ki te whakamātotoru, te whakatārewatanga, te here, te whakamānu, te hanga kiriata, te marara, te pupuri wai me te whakarato i ngā colloid tiaki:
Ka wairewa te HEC i roto i te wai wera, i te wai matao rānei, ā, kāore e pupū ake i te pāmahana tiketike, i te wai kohua rānei, nō reira he whānuitia ngā āhuatanga wairewa me te matotoru, tae atu ki te kore e whakapūpū i te wai wera;
E rua ngā wā ka nui ake te kaha o te pupuri wai i tō te methyl cellulose, ā, he pai ake te whakahaere i te rere;
Ki te whakaritea ki te methyl cellulose me te hydroxypropyl methyl cellulose kua mōhiotia, ko te kaha marara o HEC te mea kino rawa atu, engari ko te kaha tiaki colloid te mea tino kaha;
Kāore i te ionic, ā, ka taea te noho tahi me te whānuitanga o ngā polymer wairewa-wai, ngā surfactants, me ngā tote. He whakamātotoru colloidal pai rawa atu mō ngā otinga electrolyte kukū-teitei.
Me pēhea te whakamahi i te hydroxyethyl cellulose?
Tāpirihia tika i te wā whakaputa – ko tēnei tikanga te mea māmā rawa, ā, he iti ake te wā e pau ana:
Tīmatahia te whakaoho tonu i te tere iti, ā, āta tātarihia te hydroxyethyl cellulose kia ōrite ki roto i te wairewa, me te whakaoho tonu kia mākū katoa ngā matūriki. Kātahi ka tāpirihia ngā mea tiaki me ngā momo tāpiri. Pērā i ngā tae, ngā āwhina whakamarara, te haukini, me ētahi atu. Whakaohokia kia memeha rawa te hydroxyethyl cellulose (ka tino piki ake te matotoru o te wairewa) i mua i te tāpiri i ētahi atu wāhanga ki te tauira hei whakahaere i te tauhohenga.
Kua rite ki te waipiro whaea
Ko te whakarite i tētahi wai whaea he nui ake te kukū i te tuatahi, kātahi ka tāpirihia ki te hua. Ko te painga o tēnei tikanga he ngāwari ake, ā, ka taea te tāpiri tika ki te hua kua oti, engari me penapena tika. He rite ngā mahi o tēnei tikanga ki te nuinga o ngā mahi i roto i te Tikanga 1; ko te rerekētanga, kāore he hiahia mō tētahi kaiwhakaoho kutikuti-teitei, ā, ko ētahi kaiwhakaoho anake he nui te kaha hei pupuri i te hydroxyethyl cellulose kia marara noa i roto i te wai ka taea te whakamahi, me te whakaoho tonu kia memeha rawatia hei wai matotoru. Heoi, me mōhio me tāpiri wawe tonu te kaihoko harore ki te wai whaea.
Ngā tohutohu atawhai:
I te mea he paura, he totoka muka rānei te hydroxyethyl cellulose i tukatukahia ki te mata, me whakamahara koe kia aro ki ngā āhuatanga e whai ake nei i te wā e whakarite ana i te wai whaea hydroxyethyl cellulose:
I mua atu, ā, i muri i te tāpiri i te hydroxyethyl cellulose, me whakaoho tonu kia mārama rawa te wairewa;
Me ata tatari ki roto i te oko whakaranu, kaua hoki e hono tika ngā puranga, ngā porowhita rānei me te hydroxyethyl cellulose ki roto i te oko whakaranu;
He hononga nui tō te pāmahana wai me te uara pH o te wai ki te whakarewanga o te hydroxyethyl cellulose, nō reira me aro nui ki tēnei;
Kaua e tāpirihia ētahi matū kawakore ki te ranunga i mua i tete hauwaitoiretiri pūtauka rumakina te paura ki te wai. Mā te whakanui ake i te pH i muri i te rumakina ka āwhina i te whakarewa;
Tāpirihia he rongoā harore ki ngā mea e taea ana i mua;
Mēnā e whakamahia ana te hydroxyethyl cellulose matotoru-teitei, kaua te kukū o te wai whaea e neke ake i te 2.5-3% (mā te taumaha), ki te kore ka uaua te whakahaere i te wai whaea.
Wā tuku: 28 Paenga-whāwhā 2024