Te ōwehenga o te hydroxypropyl methyl cellulose me te sima

He aha te ōwehenga o te HPMC Hydroxypropyl methyl cellulose me te sima?

He moata whakamātao hangarau ātete wai, ko ōna āhuatanga e whakawhirinaki ana ki te taumaha kupenga o ngā rauemi mata i hangaia: Konukuraiti 30-340, paura pereki para hangahanga hangarau 40-50, muka lignin 20-24, konupūmā formate 4-6, hydroxypropyl methyl cellulose 7-9, paura silicon carbide 40-45, paura konupūmā hydroxide 10-20, paura korundum parauri 10-12, paura paru maroke o te tāone nui 30-35, oneone o te tāone nui o Datong 40-45, konupūmā whanariki 4-6, carboxymethyl Māngaro turanga 20-24, rauemi whakarerekētia nanotechnology paura waro 4-6, wai 600-650; Ko te moata whakamātao hangarau ātete wai o tēnei hua he kaha te whakamātao wera, he pai te ātete ahi, he kaha te here ki te pakitara, he kaha te pēhi, he pai te mahi kume, he pai te ātete koroheketanga, he pai te tiaki taiao, he pai te ātete makuku, he ātete pakaru, ātete ki te hinga. I tēnei rā ka kōrero tātou mō te matotoru o te wairewa wai hydroxypropyl methyl cellulose kei roto i ngā āhuatanga e rua? Me ako tātou i taua mea.

1. Te taumaha ngota whanaunga, te pāmahana o te wairewa, te tere tapahi me te tikanga whakamātautau o te cellulose ether; 2. Ko te teitei ake o te pāmahana whakawhiti karāhe, ko te nui ake o te taumaha ngota whanaunga, ko te matotoru o te wairewa he teitei ake; 3. Ko te teitei ake o te ihirangi o te cellulose ether, ko te teitei ake o te matotoru o te wairewa, nō reira i te whakatinanatanga o te tono me aro tātou ki te nui o te whakauru e tika ana, kia kore ai e nui rawa te whakauru, me te pā tika ki ngā āhuatanga o te moata sima me te raima sima; 4. Pērā i te nuinga o te wairewa, ka heke hoki te matotoru me te pikinga o te pāmahana, ā, ko te teitei ake o te ihirangi o te cellulose ether, ko te nui ake o te kino o te pāmahana; Hei tāpiri, ka rerekē anō te pānga matotoru i runga i te nui o te wai e whakamahia ana mō te sima epoxy.

Ka taea hoki te whakamahi i te matotoru o te wai o te hydroxypropyl methyl cellulose hei hononga matua mō ngā kōrero mō ngā āhuatanga o te cellulose ether, ko te teitei ake o te matotoru o te wai o te wai, ko te pai ake o ngā rauemi sima epoxy i muri i te pereti, engari ki te nui rawa te matotoru, ka kino tonu te wai me te kaha o te rauemi mata o te sima epoxy. Mō ētahi moata whakaōrite-ake me te rere teitei, ka tohua te matotoru o te cellulose ether kia iti ake.

He tinana rūpahu te wairewa cellulose ether, ā, i te wāhanga o muri mai o te kitenga ka nui ake te tere kutikuti, ka iti ake te matotoru.

Nō reira, ko te whakarāpopototanga: ka whakaitihia te piripono o te moata sima e te kaha o waho, he mea pai tēnei mō te hanganga hangarau i muri mai, engari i roto i te wai wai cellulose ether, mehemea he iti rawa te uara kukū, ka puta ngā āhuatanga o te wai kore-Newtonian, engari, i te mea ka piki ake te uara kukū, ka puta ngā āhuatanga wai rūpahu ki te wai.

Ko te pupuri wai mai i te hydroxypropyl methyl cellulose tētahi o ngā āhuatanga matua o te hydroxypropyl methyl cellulose. Ka pāngia te tere mimiti o te wai i roto i ngā hua ranu mō te moata me te pāreti e te pāmahana hau, te pāmahana me te tere pēhanga. Nō reira, i ngā wā rerekē, me te hydroxypropyl methyl cellulose, he rerekē te nui o te whai huatanga wai o te hua.

I te nuinga o te wā, ko te teitei ake o te matotoru o te hydroxypropyl methyl cellulose, ko te pai ake o te pānga tuturu o te pupuri wai, engari ka whakaitihia te kino o te matotoru ki te pupuri wai i muri i te neke atu o te matotoru i te 100,000 Mpa. s. Ina neke atu te matotoru o te HYDROXYpropyl methyl cellulose i te 100,000, ka taea te whakapai ake i te tere pupuri wai mā te whakanui ake i te nui o te hydroxypropyl methyl cellulose.

I roto i te tukanga hanga taipitopito, ka taea te whakarite i te pānga pupuri wai o te paru mā te whakarite i te nui o te hydroxypropyl methyl cellulose. Ka taea e ngā hua raupapa Hydroxypropyl methyl cellulose te whakaoti rapanga o te pupuri wai i raro i te pāmahana tiketike tonu. I te wā pāmahana tiketike tonu, inā koa i ngā wāhi wera me te hoha, me te hanganga o te chromatography i te taha paki, e hiahiatia ana te HYDROXYpropyl methyl cellulose kounga teitei hei whakawhanake i te pupuri wai o te paru.

He kounga teitei te hydroxypropyl methyl cellulose, he pai te taurite, ko ōna rōpū mahi butyl tuatoru me te hydroxypropyl hāora i te taha o te hanganga mekameka ngota muka, ka taea te whakawhanake i te rōpū methyl aldehyde me te hāora, ā, ko te kounga wai o te āhua matihiko ka taea te hanga hononga covalent, ka herea te wai me te wai o te marara, kātahi ka whakahaere pai i te pāmahana tiketike o te āhuarangi e puta mai ana i te mimiti wai, te pupuri wai nui.

Ka taea te whakamahi i te hydroxypropyl methyl cellulose kounga teitei hei hanga i ngā whenua wetekina me ngā whenua arumoni i roto i ngā hua moata me te pāreti whakaranu, ā, ka puta he paparanga kiriata i ngā matūriki totoka katoa, ka mākū, ka whakamatao, ka hanga he paparanga kiriata. I roto i te wā poto, ka tukuna mārire te makuku mai i te turanga, ka tīmata te ranunga matū waro ki te tauhohenga wai, ka whakamanahia te ōritetanga o te kaha pēhi me te kaha kume o ngā rauemi mata. I roto i te tukanga hanga raumati pāmahana teitei tonu, nō reira, kia eke ki te pānga wai, me rite ki te tunu mō te nui me te kounga o ngā hua hydroxypropyl methyl cellulose, ki te kore, ka tere rawa te whakaatu i te hoha, ka kore e ranea te wai, ka heke te kaha pēhi, ka pakaru, ka pakaru ngā āhuatanga pēnei i te metope puoto kau me te ruarua, ka honoa hoki ki te tauwehenga uaua hanga kaimahi. I te hekenga o te pāmahana, ka taea te whakaiti mārire i te nui o te hydroxypropyl methyl cellulose, ā, ka taea te whakatutuki i te pānga pupuri wai.

Ki te kore e tāpirihia te cellulose ether, ka tere te maroke o te chromatography o te moata sima hou, ā, kāore e taea te whakamakuku i te raima i te ara noa, ka kore e taea te whakapakeke i te moata sima, ā, ka pai ake te piri. I taua wā anō, mā te tāpiri i te cellulose ether ka pai ake te ngāwari me te ngāwari o te moata sima, ā, ka pai ake te kaha o te piri o te moata sima.

1, te rahi o te matūriki hydroxypropyl methyl cellulose

Ka pā kino te rahi o te matūriki o te cellulose ether ki tōna wairewatanga. Ko te pai ake o te cellulose ether, ko te tere ake o tōna tere pirau i roto i te wai, ā, ko te teitei ake o ōna āhuatanga pupuri wai. Nō reira, me whakauru te rahi o te matūriki o te cellulose ether ki te rangahau i tētahi o ōna āhuatanga. I te nuinga o te wā, ko te rahi o te matūriki o te cellulose ether he 80 mata i runga i.

2, maroke te hydroxypropyl methyl cellulose me te kore he tere taumaha

Ko te tere o te kaha o te cellulose ether maroke, kāore he kaha, e pā ana ki tētahi pāmahana motuhake o te cellulose ether maroke, ko te ngaronga o te kounga matū te take o te ōrau kounga tauira taketake o te hanganga. Ki te mea he nui rawa te tere o te kaha o te cellulose ether i roto i te maroke kāore he kaha, ka whakaitihia ngā wāhanga e tika ana i roto i te cellulose ether, ka kino te pānga tuturu o te whakamahinga o ngā kamupene o raro, engari ka whakapai ake hoki i te utu hoko. Ko te tikanga, kaua te tere o te kaha o te cellulose ether maroke kāore he kaha e neke ake i te 5.0%.

3, pungarehu hydroxypropyl methyl cellulose pāhare pāporo thiocyanate

Mō te nui rawa o te pungarehu o te cellulose ether i roto i tētahi kounga motuhake, ka whakaiti i te nui o te cellulose ether i roto i ngā wāhanga e tika ana, ka kino te pānga tūturu o te whakamahinga o ngā kamupene o raro, ko te ihirangi pungarehu o te cellulose ether potassium thiocyanate te whakaaro matua o tōna ake uara tohu āhuatanga.

4, te matotoru o te hydroxypropyl methyl cellulose

Ko te pupuri wai me te pānga matotoru o te Hydroxypropyl methyl cellulose te mea nui ki te tāpiri i te moata sima cellulose etera ki tōna ake matotoru me te whakaurunga.

5, uara PH hydroxypropyl methyl cellulose

Ka heke haere te matotoru o ngā hua hydroxypropyl methyl cellulose i te pāmahana teitei ake, i muri rānei i te rokiroki mō te wā roa, inā koa mō ngā hua matotoru teitei, nō reira me whakawhāiti te uara pH. Ko te tikanga whānui ko te uara PH o te cellulose ether me whakahaere kia 5-9.

6. Te tukunga o te hydroxypropyl methyl cellulose

Ka pā tika ngā painga me ngā ngoikoretanga o te tukunga o te hydroxypropyl methyl cellulose ki te pānga tuturu o tōna whakamahinga i roto i ngā rauemi hanga. Ko ngā āhuatanga matua e kino ana ki te tukunga o te cellulose ether ko1) te kounga o ngā rauemi mata; (2) te pānga tuturu o te whakakorenga; (3) te whakarite hangarau tukatuka; (4) te whakarite whakarewa waro; (5) Te pānga tuturu o te zhonghe.

E ai ki te pānga tono tūturu, kaua te tuku o te cellulose ether e iti iho i te 80%.

7, te pāmahana whakapae o te hydroxypropyl methyl cellulose

Hydroxypropyl methyl celluloseI roto i ngā wāhanga sima, ko te mea nui ko te whakapiki i te kaha o ngā piri, te matotoru me te pupuri wai, nō reira ko te matotoru me te pāmahana o te ira te uara matua o te hydroxypropyl methyl cellulose. Ka whakamahia te pāmahana hei aromatawai i te momo me te whakatakotoranga o te cellulose ether, ā, e pā ana ki te taumata o te whakakapinga o te cellulose ether.

8. Hei tāpiri, ka pā kino hoki te tote me ngā toenga ki te pāmahana o te kāpia. Ina piki te pāmahana o te wairewa, ka kore haere te wai o te muka polymer, ā, ka heke te matotoru o te wairewa. Ina tae ki te pūwāhi piri, ka maroke rawa te polymer, ā, ka puta te piri. Nō reira, ko te pāmahana mahi o ngā mema sima kei raro iho i te pāmahana piri taketake. I raro i tēnei paerewa, ko te iti o te pāmahana, ko te teitei ake o te matotoru, ā, ko te nui ake o te pānga tuturu o te whakakorikori me te pupuri wai.