Ko nga hua huaora ka puta katoa mai i te penupenu miro maori, te penupenu rakau ranei, ka mahia ma te whakaeterera.Ko nga momo momo cellulose e whakamahi ana i nga momo whakaea.Ko te kaihoko etherifying e whakamahia ana i roto i te hydroxyethyl cellulose (HEC) ko te ethylene oxide, a ko te kaihoko etherifying e whakamahia ana i roto i te hydroxypropyl methylcellulose (HPMC) ko etahi atu momo o te etherifying agents.(chloromethane me te propylene oxide).
I roto i te peita szone tūturu me te peita tawhetawhe, ka taea te whakamahi i te hydroxyethyl cellulose hei whakamatao.
Ko te peita kohatu tuuturu he ngawari ki te whakaheke na te nui o te kohinga me te nui o te motuhake.He mea tika ki te taapiri i te kaitao ki te whakanui ake i tona kirikiri ki te whakatutuki i te viscosity e hiahiatia ana mo te rehu i te wa o te hanga, te whakapai ake i te pumau o te rokiroki, me te whakatutuki i tetahi kaha.
Mena kei te hiahia koe ki te peita kohatu tuuturu kia pai te kaha, he pai te aukati wai me te aukati huarere, he mea tino nui te kowhiringa o nga rauemi mata me te hoahoa o te tauira.
I raro i nga ahuatanga noa, ko te nui o te whakaehunga e whakamahia ana i roto i te peita kohatu tuuturu ka tino teitei.
Hei tauira, i roto i te ton o te peita kohatu tuturu, tera pea te 300kg o te whakaehunga kiriaku parakore me te 650kg o te kirikiri kohatu tae maori.Ina he 50% te kiko totoka o te whakaehunga, ko te 300kg o te whakaehunga i muri i te whakamaroke he 150 rita, ko te 650kg o te onepu he 228 rita.Arā, ko te PVC (te kukū rōrahi poaka) o te peita kohatu tūturu he 60% i tenei wa, no te mea he nui nga matūriki o te kirikiri tae, he rereke te ahua, a, i raro i te ahua o te tohatoha rahi o te matūriki, te maroke. Ko te peita kohatu tuturu pea kei roto i te CPVC (critical mass concentration).Pigment volume concentration) approx.Mo te mea e pa ana ki te kaitao, mena ka kowhiria e koe te cellulose me te pokey tika, ka taea e te peita kohatu tuuturu te hanga i tetahi kiriata peita ahua oti me te kiko kia tutuki nga whakaritenga mahi nui e toru o te peita kohatu tuuturu.Ki te he iti te ihirangi o te whakaehunga peita kohatu tūturu, e tūtohu ana ki te whakamahi i te cellulose ki teitei pokey rite te thickener (pērā i te 100,000 pokey), rawa i muri i te utu o te cellulose piki, e taea te whakaiti i te nui o te cellulose whakamahia me te hanga i te tino kohatu He pai ake te mahi o te peita.
Ko etahi o nga kaihanga peita kohatu tuuturu e whakamahi ana i te hydroxypropyl methylcellulose hei utu mo te hydroxyethyl cellulose mo te utu me etahi atu mea.
Ka whakatauritea ki nga momo cellulose e rua, he pai ake te pupuri wai o te hydroxyethyl cellulose, kare e ngaro te pupuri wai na te gelatin i te teitei o te pāmahana, me te aukati i te koriri.Mo nga whakaaro mo nga mahi, e taunaki ana kia whakamahia te hydroxyethyl cellulose me te viscosity o te 100,000 hei peera mo te peita kohatu tuuturu.
Te wa tuku: Apr-28-2023