MHEC taumata whare

Te taumata o te whare MHEC

Taumata hanga MHEC Metiora hauwaiora etioraCeluloseHe paura mā, kāore he kakara, kāore he reka, kāore he paitini, ka taea te whakarewa ki te wai matao hei hanga i tētahi otinga matotoru mārama. He āhuatanga ōna o te whakamātotoru, te here, te marara, te whakaemulsification, te hanga kiriata, te whakatārewatanga, te mimiti, te whakatārewatanga, te mahi mata, te pupuri makuku me te colloid tiaki. Nā te mea he mahi mata te otinga wai, ka taea te whakamahi hei kaihoko tiaki colloidal, hei emulsifier me te dispersant. He pai te hydrophilicity o te otinga wai MHEC methyl Hydroxyethylcellulose kounga hanga, ā, he kaihoko pupuri wai whai hua. Kei roto i te Hydroxyethyl methyl cellulose ngā rōpū hydroxyethyl, nō reira he pai te kaha ki te ārai i te pokepokea ai, he pai te pumau o te matotoru me te ārai i te harore i te wā e rongoa ana mō te wā roa.

Ngā āhuatanga ā-tinana me ngā āhuatanga matū:

Āhua: He mā, he tata mā rānei te paura muka, kirikiri rānei te MHEC; kāhore he kakara.

Wairewatanga: Ka taea e te MHEC te wairewa i roto i te wai matao me te wai wera, ka taea anake e te tauira L te wairewa i roto i te wai matao, kāore e wairewa te MHEC i roto i te nuinga o ngā whakarewa waro. I muri i te maimoatanga mata, ka marara te MHEC i roto i te wai matao me te kore e kohikohi, ā, ka puhoi te wairewa, engari ka taea te wairewa tere mā te whakarerekē i tōna uara PH o te 8~10.

Te pumau o te PH: Kāore e tino rerekē te matotoru i roto i te awhe 2~12, ā, ka heke te matotoru ki tua atu i tēnei awhe.

Te matotoru: Te tere o te paahitanga 40 mata ≥99% Te tere o te paahitanga 80 mata 100%.

Te mātotoru āhua: 0.30-0.60g/cm3.

Ngā Tohu Hua

Tono 

Ka taea te whakamahi i te MHEC methyl Hydroxyethyl cellulose kounga hanga hei colloid tiaki, hei emulsifier me hei dispersant nā te mea he mahi mata kaha tōna i roto i tana wairewa. Ko ngā tauira o ana whakamahinga koia ēnei:

1. Te pānga o te methylhydroxyethylcellulose ki te mahi a te sima. Ko te MHEC methylHydroxyethylcellulose kounga hanga he paura ma, kāore he kakara, kāore he reka, kāore he paitini, ka taea te whakarewa ki te wai matao hei hanga i tētahi otinga matotoru mārama. Kei a ia ngā āhuatanga o te whakamātotoru, te here, te marara, te whakaemulsification, te hanganga kiriata, te whakatārewatanga, te mimiti, te whakakī, te mahi mata, te pupuri makuku me te colloid tiaki. Nā te mea he mahi mata te otinga wai, ka taea te whakamahi hei colloid tiaki, hei emulsifier me te dispersant. He pai te hydrophilicity o te otinga wai MHEC methyl Hydroxyethyl cellulose kounga hanga, ā, he kaihoko pupuri wai whai hua.
2. Whakaritea he peita whakawātea he tino ngāwari, he mea hanga mai i ngā wāhanga e whai ake nei mā te taumaha o ngā rauemi mata: 150-200 karamu o te wai whakakore iona; 60-70 karamu o te wai whakapūkara kiriaku parakore; 550-650 karamu o te konupūmā taumaha; 70-90 karamu o te talc; 30-40 karamu o te wairewa wai methyl cellulose; 10-20 karamu o te wairewa wai lignocellulose; 4-6 karamu o ngā āwhina hanga kiriata; 1.5-2.5 karamu o te patu harore; 1.8-2.2 karamu o te kaiwhakamakuku; 1.8-2.2 karamu o te kaihoko whakamakuku; Whakamātotoru 3.5-4.5 karamu; ethylene glycol 9-11 karamu; ko te wairewa wai MHEC taumata hanga he mea hanga mai i te 2-4% MHEC taumata hanga kua rewa ki te wai; ko temuka cellulosehe mea hanga te otinga wai i te 1 -3%muka celluloseka hangaia mā te whakarewa i roto i te wai.

Me pēhea te whakaputaMHEC taumata whare?

Tete whakaputaKo te tikanga mō te MHEC methyl hydroxyethyl cellulose taumata whare ko te whakamahi i te miro kua whakatikatikaina hei rauemi mata, ā, ko te ethylene oxide hei kaihoko etherifying hei whakarite i te MHEC taumata whare. Ko ngā rauemi mata mō te whakarite i te MHEC taumata whare ka whakaritea i roto i ngā wāhanga mā te taumaha: 700-800 wāhanga o te ranunga toluene me te isopropanol hei whakarewa, 30-40 wāhanga o te wai, 70-80 wāhanga o te konutai hauwai, 80-85 wāhanga o te miro kua whakatikatikaina, mowhiti 20-28 wāhanga o te oxyethane, 80-90 wāhanga o te methyl chloride, 16-19 wāhanga o te waikawa acetic glacial; ko ngā mahi motuhake koia ēnei:

I te taahiraa tuatahi, tāpirihia he ranunga o te toluene me te isopropanol, te wai, me te konutai hauwai ki roto i te ipu tauhohenga, whakapiki ake i te pāmahana ki te 60-80°C, ka pupuri mō te 20-40 meneti;

Ko te taahiraa tuarua, te whakapūmau: whakamataohia ngā rauemi o runga ake nei ki te 30-50°C, tāpirihia he miro kua whakapaia, rehuhia ki te ranunga o te toluene me te isopropanol, whakawāteahia ki te 0.006Mpa, whakakīia ki te hauota mō ngā whakakapinga e 3, ā, mahihia he kawakore i muri i te whakakapinga. Ko ngā tikanga whakapūmau e whai ake nei: ko te wā whakapūmau he 2 hāora, ā, ko te pāmahana whakapūmau he 30℃.-50℃;

Ko te taahiraa tuatoru, ko te whakaetere: i muri i te whakapūkara, ka whakawetohia te tauhohenga ki te 0.05~Ka tāpirihia te 0.07MPa, te waikura etilena me te metilaora, ā, ka puritia mō te 30~50 meneti; te wāhanga tuatahi o te whakapūkara: 40~60℃, 1.0~2.0 Hāora, ka whakahaerehia te pēhanga i waenga i te 0.15-0.3Mpa; te wāhanga tuarua o te etherification: 60~90℃, 2.0~2.5 hāora, ka whakahaerehia te pēhanga i waenga i te 0.4-0.8Mpa;

Ko te taahiraa tuawhā, te whakakorekore: tāpirihia te waikawa acetic hukapapa kua inehia ki mua i te desolventizer, pēhia ki roto i te rauemi etherified hei whakakorekore, whakanuia te pāmahana ki te 75~80℃ mō te whakakorenga wai, ka piki te pāmahana ki te 102℃, ā, ko te uara pH ka 68. Kia oti te whakakorenga; whakakīia te ipu whakakorenga ki te wai puna i tukatukahia e te taputapu osmosis whakamuri i te 90℃~100℃;

Ko te taahiraa tuarima, te horoinga ā-pūwero: ka pūwerohia ngā rauemi i te taahiraa tuawhā mā te whakamahi i te pūwero tīwiri whakapae, ā, ka whakawhitihia ngā rauemi kua wehea ki te ipu horoi kua whakakiia ki te wai wera i mua i te horoinga o ngā rauemi;

Ko te taahiraa tuaono, te whakamaroke ā-pūwero: ka haria ngā rauemi kua horoia ki roto i te mīhini whakamaroke mā te whakamahi i te pūwero tīwiri whakapae, ka whakamarokehia ngā rauemi i te 150-170°C, ā, ka kuruhia, ka tākaihia ngā rauemi maroke.

Ki te whakataurite ki te hangarau whakaputa cellulose ether o nāianei, ko te mea o nāianeitikanga whakaputaKa whakamahia te ethylene oxide hei etherifying agent hei hanga i te MHEC methyl hydroxyethyl cellulose kounga hanga, ā, nā te mea kei roto ngā rōpū hydroxyethyl, he pai tōna kaha ki te ārai i ngā mate harore. He pai te pumau o te matotoru me te ātete ki te harore i te wā roa e penapena ana. Ka taea e ia te whakakapi i ētahi atu cellulose ethers.

BMHEC taumata wharehe matūriki cellulose ether,He rauemi matū pai rawa te cellulose ether, he whānuitia ngā whakamahinga i hangaia mai i te polymer cellulose tūturu mā te maimoatanga matū. Mai i te hanganga o te cellulose nitrate me te cellulose acetate i te rautau 19, kua whakawhanakehia e ngā kaimātai matū he maha ngā momo cellulose derivatives o ngā cellulose ethers. Kei te kitea tonutia ngā mara tono hou, ā, he maha ngā rāngai ahumahi e whai wāhi ana. Ko ngā hua cellulose ether pērā i te sodium carboxymethyl cellulose (CMC), ethyl cellulose (EC), hydroxyethyl cellulose (HEC), hydroxypropyl cellulose (HPC), methyl hydroxyethyl cellulose (MHEC). Ko te methyl hydroxypropyl cellulose (MHPC) me ētahi atu cellulose ethers e mōhiotia ana ko te "industrial monosodium glutamate", ā, kua whānuitia te whakamahinga o te MHEC mō te hanga whare i roto i te piripiri taera, te moata maroke, te sima me te gypsum plasters.

Tākai:

Pēke pepa 25kg kei roto me ngā pēke PE.

20'FCL: 12Tana me te papa reti, 13.5Tana kāore he papa reti.

40'FCL: 24Tana me te papa reti, 28Tana kāore he papa reti.