I te wa ano, ka taea te whakapai ake i te kaha compressive me te kaha kutikuti oHPMC hydroxypropyl methyl cellulose, te whakapai ake i te tino painga o te hanga miihini, te whakapai ake i te pai.Ka taea e te HPMC hydroxypropyl methyl cellulose te whakapai ake i te kaha piri o te paura putty, te whakaiti i te ahua whakatara, ki te whakarite i te angitu o te hanga miihini.Ka taea e te Hydroxypropyl methyl cellulose te whakanui ake i te wa oma me te pa ki te raru o te kowhao me te kore rawaka o te kaha o te kopiri taketake i roto i te mahi hanga miihini.
Ko te nui o te mahi aukati wai o te moata hanga miihini me te kumete putty ka taea te whakauru i te raima, ka taea te whakapai ake i te kaha o te whakakotahitanga o te kumete.I te wa ano, ka taea te whakapai ake i te kaha o te pupuhi me te kaha kutikuti o te hydroxypropyl methyl cellulose ki te whakapai ake i te hua o te hanga miihini me te whakapai ake i te pai.
Tama makuku,HPMChydroxypropyl methyl cellulose, te painga o te hydroxypropyl methyl cellulose i roto i te paura putty, hei aukati i te whakamaroke me te whakamaroke na te tere rawa o te rere o te wai.Ka taea e te Hydroxypropyl methyl cellulose te whakapai ake i te kaha piri o te paura putty, te whakaiti i te ahua whakatara, te whakarite i te angitu o te hanga miihini.
HPMC hydroxypropyl methyl cellulose kī ki te wai maukati, thickening, mākū me ētahi atu pānga, thickening, mākū me ētahi atu pānga i etahi pānga tautuhinga tuatahi.Ka taea e te Hydroxypropyl methyl cellulose te whakanui ake i te wa oma me te pa ki te raru o te kowhao me te kore rawaka o te kaha o te kopiri taketake i roto i te mahi hanga miihini.
Ko te HPMC hydroxypropyl methyl cellulose i roto i te kumete whakamaarama taiepa he whai waahi nui ki te hono hononga, me te whakarei ake i te kaha o te kopiri o nga rauemi mata.He tino ngawari ki te hipoki, te whakapai ake i te pai o te kumete, me te mahi taketake o te aukati anti-rere me te whai hua.Ko te mahi maukati wai o te hydroxypropyl methyl cellulose ka taea te whakanui ake i te wa rere o te kumete, te whakapai ake i te aukati ki te whakakotahi me te punga, te whakapai ake i te kounga o te mata, me te whakapai ake i te kaha o te whakakotahitanga o te hononga.
Ko te tino herenga taera wairewa-wairewa ka tango i te hiahia mo nga taera papa me nga turanga o mua-makuku, makuku ranei, me te whakapai ake i te kaha compressive hononga.He roa te wa hanga miihini slurry, he maamaa, he hangarite, he watea te hanga miihini, he pai te aukati makuku.
I roto i te mara o te paninga whare taherapa taiao, ka taea te whakamahi hydroxypropyl methyl cellulose hei kaihoko hanga kiriata, tackifier, demulsifier me te thickener, kia pai ake ai te whakakakahu i te kiriata kirihou, te wai me te piri.Ko te pH e whakamahia ana hei whakapai ake i te awangawanga atanga he pai te whakamaarama, a he pai te ranunga ki te otinga pararopi, he pai te maeneene.
Whanaketanga Ohaoha He pai te kaha o nga paninga hoahoanga, he pai te uruhanga wai, he pai hoki te atete tawhito.Ko te tino kaupapa hoahoa tauira paninga kohatu he tino matua.He ton o te lacquer kounga teitei kei te tata ki te 300KG te whakaehunga styrene-kiriaku parakore, 650KG te wairewa wai toka taiao parakore me etahi atu waahanga.Ko nga lacquers tino kounga teitei e whakaatuhia ana e te maha o nga hinu whakamakuku.A, no te te hanganga wai o te whakaehunga he 50%, te rōrahi o 300KG moisturizing whakaehunga i muri i whakamaroke ko e pā ana ki 150 rita, me te rōrahi o 650KG onepu taimaha ko e pā ana ki 228 rita.Arā, i tēnei wā, ko te peita kōhatu tūturu (te uara kukū te whakapiri tae) he 60%.Na te nui o te matūriki me te ahua koretake o te onepu pai, i raro i te kaupapa o te tātari rahi matūriki, ka noho te paninga pakitara o waho maroke ki te taha o te uara kukū CPVC).
Mo te viscosifier, ki te kowhiria te pokey cellulose e tika ana, ka taea e te paninga pakitara o waho te whakaputa i nga waahanga peita tino pai ake, kia tutuki ai nga tikanga e toru o te paninga pakitara o waho.E toru nga ture mo te hanga paninga.I roto i te meka, te tono o te rota o te ohaoha, me te mahi kohatu qi, he ton o te tunu tunu huna whakarewa 100-160kg, 750kg kirikiri pereti tae, 20kg (tae atu ki te paninga tāpiritanga, pesticides, fungicides, adhesives, etc.), te toenga o te wai me nga hua tiaki kiri.Ko tenei ahua o te peita kohatu PVC tino pono kei waenganui i te 75%?I waenganui i te 85%, i roto i te tukanga mahi kua maroke, he tino uaua te paninga peita kohatu mau ki te whakatu i tetahi paparanga peita taipitopito me te kiki.Na reira, me pehea ki te whakamahi tonu o te iti ake moisturizing whakaemulsion pānga tohutao ngaro, kia te paninga tae noa rite taea hangarite.
Ko nga whakakikorua o te whare kohatu tuturu he iti te pokey (te taumaha ngota ngota).Na te pikinga o te utu o nga taonga cellulose, ka huri te viscosity o te cellulose tono mai i te 30000 ki te 50000,80000,100000, ahakoa ka piki ake i te 200000, ko te whainga ko te whakaheke i te tapeke o te cellulose mai i te methyl cellulose (HEC). ) ki te hydroxyl acrylic cellulose (HPMC);Ko te tono o te methyl methyl cellulose HPMC ka tino whakaiti i te wai o te peita hanga kohatu, katahi ka whakapai ake i te pokey o te cellulose (te papatipu irapoi whanaunga) ka waiho ko te tino kowhatu peita whare kohatu te whakatau mahi koloa?Ko te whakautu ka kino haere te mahi o te paparanga peita kohatu!
Ka taea te wehewehea te HPMC ki nga momo wairewa me te wera.Ka tere te marara o te wai matao me te heke ki roto i te wai, ka taea te wehewehea te HPMC ki nga momo wairewa tonu me te wera.I tenei wa, kaore te wai e whai kiko, no te mea ka marara noa te HPMC ki te wai, kaore he tino tikanga o te rewa.I muri tata ki te 2 meneti, ka puhoi te puhoitanga o te wai, ka puta he otinga colloid puataata.Ka whakaemihia nga taonga whakarewa wera wera ki te wai matao, ka tere te marara i roto i te wai wera ka marara ki te wai wera.Ka whakahekehia te pāmahana ambient ki tetahi tohu o te wera, ka tere haere te pokey tae noa ki te whakaputanga o te otinga colloidal viscous tino marama.Ko te momo waiariki waiariki waiariki ka whakamahia anake ki te paura putty me te paru paru o roto.I roto i te superglue wai me nga paninga, he taupori kaore e taea te tono.Ko te momo whakamaarama tere he waahanga tono whanui.Ka taea te whakamahi hei paura putty pakitara o roto me te kumete, me tona superglue wai me te paninga.Karekau he tabu.
Te rewa wai wera: na te mea karekau te HPMC i roto i te wai wera e rewa, na reira ka taea te marara te HPMC i roto i te hononga taketake ki roto i te wai wera, ka tere te rewa ina whakamatao.Ko nga huarahi tawhito e rua e whakaahuahia ana e whai ake nei:
1) Kuhua te wai wera e hiahia ana koe ki roto i te ipu ka whakamahana ki te 70 ℃.Whakaranuhia, ata taapirihia te hydroxypropyl methyl cellulose, ka tere haere te HPMC ki runga i te awa, katahi ka ata whakaputa i te paru whakamatao ki roto i te whakaranu.
2) Whakauruhia te 1/3, te 2/3 ranei o te wai ki roto i te ipu, whakamahana ki te 70 ℃, whakamahana ki te 70 ℃ hei whakamarara i te HPMC, me te whakarite i te wai wera;Ko te toenga o te wai matao ka tapirihia ki te paru wera ka konatunatua ki te ranunga i muri i te whakamatao.
Tikanga whakaranu i te paura: Ko te paura HPMC me te whakaranu me te maha atu o nga mea matū paura he ranea te ranunga, katahi ka tapirihia he wai kia memeha.I tenei wa, ka taea te rewa HPMC i roto i te take o te kore agglomeration, no te mea he iti noa HPMC paura ia kokonga iti, ina ka memeha tonu te wai - tenei ahua o te ara ko te tono noa o te paura putty taiepa roto me kaihanga kumete.[HPMC] hei kaihoko whakakoi me te makuku i roto i te kumete putty o te pakitara o roto.
Ko te hydroxypropyl methyl cellulose (HMPC) he roimata horihori, e tata ana ki te matū viscoelastic (te nuinga o te mucin) i roto i nga roimata.Ka piri ki te mata o te kanohi na roto i te whakauru o te polymer, ka whakataurite i te mahi o te mucin conjunctival, kia pai ake ai te heke o te mucin i roto i te kanohi me te whakanui ake i te makuku o te kiore.
I roto i te paura putty, te matotoru, te pupuri wai me te hanga o nga mahi e toru.Ko te matotoru, ka taea te whakakakahu i te cellulose ki te whakatārewatanga, kia noho rite tonu te otinga ki runga me raro ki te mahi o te iri aukati.Te pupuri i te wai: kia maroke te paura putty, hei awhina i te konupūmā hina i roto i te mahi o te tauhohenga wai.Hanganga: whakahinuhinu cellulose, ka taea te hanga putty paura he hanga pai.Karekau a HPMC e uru ki nga tauhohenga matū, engari he mahi tautoko anake.
Ko te peita kakano he ngawari ake i roto i te kowhiringa o te tae, a ka taea te whakatutuki i te painga o te hoahoa toi pai, me te peita kohatu tuuturu i roto i te whai i te ahua ora maori, he pai ake i te peita kakano, kei ia tangata ona ake kaha.Te peita kakano me te lacquer i roto i te tukanga whakaputa, kia mau tonu ai te tae taketake, te tikanga i roto i te mahi whakamutunga, me whakamahi tatou i te parani (hinu marama) ki te rehu ki te tiaki i o raatau mahi toi, te hua kohatu ranei.
Lacquer, kakano peita he momo peita, te nuinga whakamahia mo te whakapaipai taiepa.Ko te paetukutuku mana o te paru diatom taiao e whakarāpopoto ana i ētahi rerekētanga i waenga i te peita kakano me te kakano, te peita kakano me te tikanga wehewehe, ko enei e whai ake nei hei kite i te rereketanga o te peita kakano me te peita kakano.
Ko te kounga teitei o te taherapa utu nui, nga kaihanga ki te penapena i nga utu, me tapiri noa he iti o te wahanga o te whakaehunga, i muri i te hanga peita kohatu kowhatu maroke te kiriata maroke, kaore i te nui te kiato, ko te peita kiriata he nui ake te reeti bibulous, ka heke te kaha compressive, ka tutaki te ua mo te wa roa, ka uru te ua ki roto i te kiriata peita, he peita kohatu ma.
Ētahi kaihanga i roto i te hanga o te lacquer, maha tāpiri he rota o te carboxymethyl cellulose, hydroxyethyl cellulose rite te thickener, enei matū he wai-wairewa hydrophilic ranei, paninga kiriata mahue i roto i te apa, tino whakaiti i te ātete wai o te paninga.
Wā tuku: Hune-09-2022