Hydroxypropyl methyl cellulose me te ōwehenga ciment

He aha te HPMC Hydroxypropyl methyl cellulose me te ōwehenga ciment?

He kumete whakamaarama miihini waikore, ko ona ahuatanga e whakawhirinaki ana ki te taumaha kupenga e whai ake nei o nga rawa mata i mahia: Raima 30-340, hanga miihini paura pereki paura 40-50, muka lignin 20-24, konupūmā hōputu 4-6,hydroxypropyl methyl cellulose7-9, silicon carbide paura 40-45, konupūmā waihā paura 10-20, parauri corundum paura 10-12, maroke pa nui parapara paura 30-35, Datong pa oneone 40-45, konumohe pūkawa ngāwha 4-6, carboxymethyl Base māngaro 20-24, rauemi whakarereke nanotechnology paura waro 4-6, wai 600-650;Ko te moata whakamaarama miihini waikore o tenei hua he kaha te wera wera, te pai o te ahi, te hononga kaha ki te pakitara, te kaha compressive, te mahi tensile, te pai o te koroheketanga, te pai o te tiaki i te taiao, te pai o te makuku, te aukati kapiti, te aukati i te taka ki raro.I tenei ra ka korero tatou mo te pokey o te wairewa wai hydroxypropyl methyl cellulose kei roto katoa i nga waahanga?Me ako tonu tatou.

1. Te taumaha o te ngota ngota, te pāmahana o te wairewa wai, te tere tapahi me te tikanga whakamatautau o te cellulose ether;2. Ko te teitei o te pāmahana whakawhiti karaihe, ko te nui ake o te taumaha ngota ngota whanaunga, ko te pokey o te otinga he tino teitei ake;3. Ko te teitei ake o te ihirangi o te cellulose ether, ko te teitei ake o te viscosity o te otinga, na i roto i te whakatinanatanga o te tono me aro ki te nui o te whakaurunga, te aukati i te whakauru he tiketike rawa, me te pa tika ki nga ahuatanga o te moata ciment. me te raima sima;4. Pērā i te nuinga o te otinga, ka heke iho te pōkākā i te pikinga o te pāmahana, me te nui ake o te ihirangi o te cellulose ether, ka nui ake te kino o te pāmahana;I tua atu, he rereke ano te paanga o te matotoru i runga i te nui o te wai e whakamahia ana mo te epoxy ciment.

Hydroxypropyl methyl cellulose aqueous solution viscosity is also can serve as a key link for comments on features of cellulose ether, the higher the viscosity of aqueous solution, its thick of epoxy ciment materials are, the better, on the back of the plate gelling properties, engari ki te he nui rawa te pokey, ka kino i te epoxy sima rauemi raw tonu me te enforceability.Mo etahi kumete whakamaarama whaiaro me te rere o te wai, ka tohua kia iti ake te pokey o te cellulose ether.

Cellulose ether wairewa wai ko te tinana pseudoplastic, tatou i roto i te wāhanga o muri o te kitenga o te auau kutikuti he nui, he iti te pokey.

Na reira, ki te whakarapopototia ko: ka whakaitihia te whakakotahitanga o te kumete ciment e te kaha o waho, he painga ki te hanga miihini i muri, engari he wairewa cellulose ether i roto i te keehi o te uara kukū tino iti, ka puta nga ahuatanga o te kore- Newtonian wai, i runga i te anga ke, ka nui haere te uara kukū, ka puta te wairewa wai āhuatanga pseudoplastic wai.

Ko te pupuri wai mai i te hydroxypropyl methyl cellulose tetahi o nga tino taonga o te hydroxypropyl methyl cellulose.Ko te tere whakaetonga o te ihirangi wai i roto i te kumete whakauru me nga hua raima ka pangia e te pāmahana hau, te pāmahana me te reeti pehanga.No reira, i nga wa rereke, me te hydroxypropyl methyl cellulose he rereke te nui o te kaha o te wai hua.

I te nuinga o te waa, ko te teitei ake o te viscosity o te hydroxypropyl methyl cellulose, ko te pai ake o te paanga o te pupuri wai, engari ko te kino o te pokey ki te pupuri i te wai ka heke i muri i te nui o te 100,000 Mpa.s.Ina neke ake te 100,000 ki te 100,000 te viscosity o te HYDROXYpropyl methyl cellulose, ka tino pai ake te reiti pupuri wai ma te whakanui ake i te nui o te hydroxypropyl methyl cellulose.

I roto i te tukanga hanga āmiki, te pānga pupuri wai o te slurry e taea te whakarite mā te whakatika i te nui o te hydroxypropyl methyl cellulose.Ka taea e nga hua raupapa Hydroxypropyl methyl cellulose te whakaoti i te raruraru o te pupuri i te wai i raro i te wera nui.I roto i te wa wera nui tonu, ina koa i nga waahi wera me te hoha me te hanga o te chromatography i te taha o te ra, ka hiahiatia te HYDROXYpropyl methyl cellulose ki te whakawhanake i te pupuri wai o te slurry.

Ko te kounga teitei o te hydroxypropyl methyl cellulose, he pai te pauna, ko ona roopu mahi butyl me te hydroxypropyl oxygen i te taha o te tohatoha o te hanganga o te mekameka muka, ka taea e ia te whakawhanake i te roopu methyl aldehyde me te hāora, me te kounga o te wai o te ahua mamati ka taea e nga here covalent. , ka herea te wai me te wai o te mararatanga, katahi ka whakahaere pai i te ahua o te pāmahana teitei na te whakaetonga wai, te pupuri wai teitei.

Ko te kounga teitei o te hydroxypropyl methyl cellulose ka uru ki nga whenua korekore me nga whenua arumoni i roto i te kumete whakauru me nga hua raima, me nga matūriki totoka katoa, te makuku, te hauhautanga, me te hanga i te paparanga kiriata, te makuku i roto i te waa roa ka tukuna ata mai i te turanga, me te te tiimatanga o te whakakotahitanga puhui pararopi o te tauhohenga whakamakuku, katahi ka whakapumau i te whakakotahitanga o nga rauemi mata te kaha o te kopiri me te kaha tensile.I roto i te paturutanga tiketike pāmahana tukanga hanga raumati, Na, ki te tae pānga wai, kia i roto i runga i te tohutaka mo etahi nui me te kounga o te hydroxypropyl methyl cellulose hua, te kore, ka whakaatu i te hōhā rawa nohopuku me te meinga iti hydration, whakaiti i te compressive. te kaha, te wehenga, ka puta nga huanga penei i te metope pahū kau me te feaa, i honoa hoki ki te whakarea uauatanga o nga kaimahi.I te hekenga o te pāmahana, ka taea te whakaiti i te nui o te hydroxypropyl methyl cellulose, ka taea te whakatutuki i te painga o te pupuri wai.

Ki te kore e tāpirihia te cellulose ether, ka tere maroke te chromatography o te kumete ciment hou, te hanga raima e kore e taea te hydrated i roto i te ara noa, hua i roto i te kumete sima e kore e taea te pakeke primed me te pai adhesion.I te wa ano, ko te taapiri o te cellulose ether e hanga ana i te kumete ciment he pai te ductility me te ngawari, me te whakapai ake i te kaha compressive hononga o te kumete ciment.

1, hydroxypropyl methyl cellulose rahi matūriki

Ko te rahi o te matūriki o te cellulose ether e kino ana ki tana whakarewatanga.Ko te pai ake o te cellulose ether, he tere ake te tere o te pirau i roto i te wai me te teitei ake o ona ahuatanga pupuri wai.No reira, me whakauru te rahi o te matūriki o te cellulose ether ki te tirotiro i tetahi o ona ahuatanga.I roto i te whānui, cellulose ether rahi matūriki o 80 mata i runga i.

2, hydroxypropyl methyl cellulose maroke me te kore reiti kaha

Manic maroke kahore auau mahara, e pā ana ki te etahi pāmahana o maroke manic cellulose Ether, te mate o te kounga matū kiia hoki te ōrau tauira kounga taketake o te hanganga.Mo tetahi kounga o te cellulose ether i roto i te maroke me te kore o te kaha o te kaha he tiketike rawa, ka whakaiti i nga waahanga e tika ana i roto i te cellulose ether, ka kino te painga o te whakamahinga o nga kamupene o raro, engari ka pai ake te utu hoko.I te nuinga o te wa ka kore e neke ake te 5.0% te eter cellulose maroke me te kore o te taumaha.

3, hydroxypropyl methyl cellulose pāhare pāporo thiocyanate pungarehu

Mo tetahi kounga o te cellulose ether i roto i te ihirangi pungarehu he tiketike rawa, ka whakaitihia te cellulose ether i roto i nga waahanga e tika ana, ka kino te painga o te whakamahinga o nga kamupene o raro, ko te cellulose ether pāhare pāporo thiocyanate pungarehu te kaupapa matua o ona ake ahuatanga. uara taupū.

4, hydroxypropyl methyl cellulose pokey

Ko te Hydroxypropyl methyl cellulose te pupuri i te wai me te whakakaha o te whakapakeke te mea matua ki te taapiri i te kumete kumete cellulose ether i roto i tona ake pokey me te whakaurunga.

5, hydroxypropyl methyl cellulose PH uara

Ka heke haere te pokey o nga hua hydroxypropyl methyl cellulose i te pāmahana teitei ake ranei i muri i te rokiroki mo te wa roa, ina koa mo nga hua pokey teitei, no reira me iti te uara pH.Ko te tikanga ko te waahanga uara PH o te cellulose ether me whakahaere hei 5-9.

6. Te tuku o te hydroxypropyl methyl cellulose

Ko nga painga me nga ngoikoretanga o te whakawhiti o te hydroxypropyl methyl cellulose ka pa ki te paanga o tana whakamahinga ki nga taonga hanga.Ko nga mea tuatahi e kino ana te whakawhiti o te cellulose ether ko1) te kounga o nga rauemi mata;(2) te tino paanga o te mate;(3) Tukatuka hangarau whakarite;(4) whakarite whakarewa organic;(5) Ko te tino painga o te zhonghe.

E ai ki te paanga o te tono, ko te whakawhiti o te cellulose ether kaua e iti iho i te 80%.

7, hydroxypropyl methyl cellulose whakapae pāmahana

Hydroxypropyl methyl cellulose i roto i nga wahanga ciment hei matua ki te whakanui ake i nga piripiri, te pokey me te kaihoko pupuri wai, no reira ko te pokey me te mahana o te ra te uara tohu matua o te hydroxypropyl methyl cellulose.Ka whakamahia te pāmahana ki te whakatau i te momo me te tohu o te cellulose ether, me te tohu o te whakakapi o te cellulose ether e hono ana.

8. I tua atu, ka kino ano te tote me te toenga i te pāmahana o te kāpia.Ka piki ake te pāmahana o te wairewa wai, ka iti haere te wai o te polymer muka, ka heke te pokey o te wairewa wai.Ka tae ki te waahi whakapiri, ka maroke katoa te polymer ka puta te whakapiri.Na reira, ko te pāmahana whakahaere o nga mema ciment i raro i te pāmahana kāpia taketake.I raro i tenei paerewa, ko te iti ake o te pāmahana, ko te teitei ake o te viscosity, me te nui ake o te paanga o te viscosification me te pupuri wai.