Te Hūrooro Metilohiko (HEMC)He matū nui te cellulose ether, ā, nō te cellulose ether kore-ionic. Ka whiwhihia te HEMC mā te whakarerekētanga matū me te cellulose tūturu hei rauemi mata. Kei roto i tōna hanganga ngā whakakapinga hydroxyethyl me te methyl, nō reira he āhuatanga ā-tinana, ā-matū hoki ōna, ā, he whānuitia te whakamahinga i roto i ngā rauemi hanga, ngā paninga, ngā matū o ia rā, te rongoā me ētahi atu mara.
1. Ngā āhuatanga ā-tinana me ngā āhuatanga matū
Ko te HEMC he paura, he kirikiri rānei he mā, he mā-parauri, he ngāwari ki te wairewa ki te wai matao hei hanga i tētahi wai koroka mārama, paku pōuri rānei. Ko ōna āhuatanga matua ko:
Wairewatanga: Ka tere te wairewa o te HEMC ki te wai matao, engari he ngoikore te wairewatanga ki te wai wera. Ka rerekē tōna wairewatanga me te matotorutanga i runga i ngā panonitanga o te pāmahana me te uara pH.
Pānga whakamātotoru: He kaha te kaha o te HEMC ki te whakamātotoru i roto i te wai, ā, ka taea e ia te whakanui ake i te matotoru o te otinga.
Pupuri wai: He tino pai te mahi pupuri wai, ā, ka taea te ārai i te ngaronga wai i roto i te rauemi.
Āhuatanga hanga kiriata: Ka taea e te HEMC te hanga i tētahi kiriata mārama ōrite ki runga i te mata, me te pakari me te kaha.
Te Whakahinuhinu: Nā tōna hanganga ngota ngota ahurei, ka taea e te HEMC te whakarato i te whakahinuhinu tino pai.
2. Tukanga whakaputa
Ko te tukanga whakaputa o te HEMC ko ngā mahi matua e whai ake nei:
Te Whakapūngao: Ka tukatukahia te cellulose tūturu i raro i ngā āhuatanga kawakore hei hanga i te cellulose kawakore.
Tauhohenga whakaetere: Mā te tāpiri i ngā kaihoko methylating (pēnei i te methyl chloride) me ngā kaihoko hydroxyethylating (pēnei i te ethylene oxide), ka pāngia te cellulose e te tauhohenga whakaetere i te pāmahana me te pēhanga motuhake.
Maimoatanga i muri i te maimoatanga: Ka whakakorengia te hua mata, ka horoia, ka whakamarokehia, ka kuruhia kia whiwhi ai i te hua mata.HEMCngā hua.
3. Ngā wāhi tono matua
(1) He whānuitia te whakamahinga o ngā rauemi hanga HEMC i roto i te ao hanga, ko te nuinga i roto i te moata sima, te paura putty, te piripiri taera, te gypsum me ētahi atu hua. Ka taea e ia te whakapai ake i te matotoru, te pupuri wai me ngā āhuatanga ārai-totoka o ngā rauemi hanga, te whakaroa i te wā tuwhera, ā, nā reira ka pai ake te mahi hanga.
(2) Ngā peita me ngā waituhi I roto i ngā peita, ka mahi te HEMC hei whakamātotoru me te whakaū i te emulsifier hei whakapai ake i te matotoru me te rheology o te peita, hei ārai hoki i te paninga kia kore e totohu. Hei tāpiri, ka taea e ia te whakarato i ngā āhuatanga hanga kiriata pai, kia ōrite ai, kia maeneene ai te mata peita.
(3) Ka taea te whakamahi i te rongoā me te whakapaipai HEMC hei piripiri me te hanga kiriata i roto i ngā papa rongoā, me te whakamātotoru me te whakamakuku i roto i ngā hua tiaki kiri. Nā te mea he nui te haumaru me te hototahi ki te koiora, he maha te whakamahinga i roto i ngā hua pēnei i ngā pata kanohi, ngā horoi kanohi, me ngā hinu kiri.
(4) Ngā matū o ia rā I roto i ngā matū o ia rā pērā i ngā hopi horoi me ngā paraihe niho, ka whakamahia te HEMC hei whakamātotoru me te whakaū hei whakarei ake i te rheology me te pumau o te hua.
4. Ngā Painga me te Tiakitanga Taiao
He tino pirau te HEMC, ā, he āhuatanga tiaki taiao hoki, ā, e kore e whakararuraru i te taiao mō te wā roa. I taua wā anō, kāore e paitini, e kore hoki e kino, e kore e whakapataritari i te kiri tangata me ngā kiriuhi mucous, ā, e tutuki ana i ngā whakaritenga o te tiaki taiao matomato me te whanaketanga tauwhiro.
5. Ngā tūmanakohanga mākete me ngā au whanaketanga
I te whanaketanga o te umanga hanga me te umanga matū o ia rā, kei te piki haere tonu te hiahia o te mākete mō te HEMC. I te heke mai, i te mea ka aro nui te tangata ki ngā rauemi e pai ana ki te taiao, ā, ka whakapai ake i te mahi a te hua, ka whānui ake te whakamahinga o te HEMC i roto i ngā momo mara. Hei tāpiri, mā te rangahau me te whakawhanake i ngā hua HEMC hou e whai hua ana (pēnei i te ātete pāmahana teitei me te momo tere) ka whakatairanga i tōna whakamahinga i roto i te mākete utu nui.
Hei etera cellulose maha-mahi me te mahi-teitei,te hauwaitoireti metiretira (HEMC)He mea nui te mahi a te HEMC i roto i te hanganga, i ngā paninga, i te rongoā me ētahi atu mara me ōna āhuatanga ā-tinana me te matū ahurei. I te whanaketanga o te pūtaiao me te hangarau me te whānui haere o ngā mara tono, ka nui ake te mahi a te HEMC i roto i te ahumahi hou, ā, ka tautoko kaha i te whanaketanga o ngā ahumahi e pā ana.
Wā tuku: Whiringa-ā-rangi 11-2024