Focus on Cellulose ethers

He aha te HPMC i roto i nga Whakapaipai?

He aha te HPMC i roto i nga Whakapaipai?

1. Te whakamaroke horoi

Kei te mohiotia ano te HPMC hei horoi matū o ia ra ko te hydroxypropyl methylcellulose matū o ia ra.Kei roto i ana tono he horoi horoi, hopi, shampoos, horoi tinana, horoi kanohi, toothpaste, hinu, aha atu.

Ko te Hydroxypropyl methylcellulose ka whakamahia hei whakamatao mo nga hopi horoi, he taapiri e whakamahia nuitia ana.Ko te kaha o te whakamaroke o te HPMC i roto i te hopi ka taea te whakanui ake i te viscosity o te hopi me te whakanui ake i te pumau o nga mirumiru.Kawea mai he wheako whakamarie ki nga kaiwhakamahi.Ka rite ki te whakakao horoi, kei a ia nga painga e whai ake nei:

1. Te makariri me te wera.Ko te pokey o te horoi e kore e huri ki te pāmahana.

2. Te parenga hiko.He aha te pH ka memeha te HPMC?He pumau i roto i te awhe pH o 3-11

3. Whakapai ake i te rere o te punaha.He pai ake te horoi o te HPMC me te whakapai ake i te kakano kiri.

2. Kaihoko kai whakaahuru-whakahou

Ko te HPMC e whakamahia ana i roto i te horoi horoi ehara i te mea he whakamaroke horoi anake, engari he kaihoko anti-sedimentation.Ko te awenga o te whakapoapoa o te hopii ma te kuhu i waenga i te hopi me te paru.No reira ka puta te paru (nga matū hinu me te paru totoka).Katahi ka whakaehunga, ka marara ki te wairewa.He maha nga utu kino a HPMC, ka taea te whakauru me te tango i te paru.Te whakanui ake i te aukati hiko.Na ka taea te marara te paru kua horoia, ka tarewa ki te wai.Ka aukati i te paru kia tau ano.

Engari ko te kounga o te hopi horoi karekau e whakawhirinaki ki te viscosity, engari ki nga kai kaha.Ko te whakauru kaha i ahu mai i nga waipara horoi.Ko nga kaiparapara me nga kaihanga nga waahanga matū matua e rua o te horoi.Ko te mahi a te taapiri ko te mahi i te surfactant.Whakaitihia te nui o te surfactant me te whakapai ake i te painga horoi.

He maha nga kaihanga horoi horoi ka aro nui ki tona marama me te tere o te whakakore.Me 95% te maramatanga.Ko enei paerewa maamaa kaore e pa ki te ahua o te horoi.He rongonui ake ki nga kaihoko.

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Wā tuku: Hune-16-2023
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