He aha ngā whakamahinga o te cellulose ether i roto i ngā mara rerekē?

Etera cellulosehe pūhui ngota ngota teitei kore-ionic, he wairewa-wai, he wairewa-whakarewa hoki. He rerekē ngā pānga o tēnei ki ngā ahumahi rerekē. Hei tauira, i roto i ngā rauemi hanga matū, e whai ake nei ngā pānga hiato:

① He mea pupuri wai, ②He mea whakamātotoru, ③He āhuatanga whakataurite, ④He āhuatanga hanga kiriata,

⑤Kaihere

I roto i te umanga polyvinyl chloride, he emulsifier me te dispersant; i roto i te umanga rongoā, he mea here me te rauemi anga tuku puhoi me te whakahaere, me ētahi atu. Nā te mea he maha ngā pānga hiato o te cellulose, ko tōna whakamahinga he whānui rawa atu hoki. Muri iho, ka arotahi ahau ki te whakamahinga me te mahi a te cellulose ether i roto i ngā momo rauemi hanga.

Ipeita rapa

I roto i te umanga peita rapa, hei whiriwhiri i te hydroxyethyl cellulose, ko te whakatakotoranga whānui o te matotoru ōrite ko te 30000-50000cps, e rite ana ki te whakatakotoranga o HBR250, ā, ko te horopeta tohutoro he 1.5‰-2‰ te nuinga. Ko te mahi matua o te hydroxyethyl i roto i te peita rapa ko te whakamātotoru, te aukati i te waikura, te āwhina i te marara o te tae, te pumau o te rapa, me te whakanui ake i te matotoru o ngā wāhanga, he mea āwhina mō te mahi whakataurite o te hanganga: He watea ake te whakamahi i te Hydroxyethyl cellulose. Ka taea te whakarewa ki te wai matao, ki te wai wera rānei, ā, kāore e pāngia e te uara pH. Ka taea te whakamahi haumaru i waenga i te uara PI 2 me te 12. Ko ngā tikanga whakamahi koia ēnei:

1. Tāpirihia tika ki te mahi whakaputa

I tēnei tikanga, me whiriwhiri te momo whakaroa hydroxyethyl cellulose, ā, me whakamahi te hydroxyethyl cellulose me te wā whakarewa neke atu i te 30 meneti. Ko ngā mahi e whai ake nei: ① Tāpirihia he nui o te wai parakore ki roto i tētahi ipu kua whakauruhia ki te whakaoho kutikuti-teitei ② Tīmata ki te whakaoho tonu i te tere iti, ā, i te wā kotahi tāpirihia mārire te rōpū hydroxyethyl ki roto i te otinga kia ōrite ③Me whakaoho tonu kia mākū katoa ngā rauemi kirikiri ④Tāpirihia ētahi atu tāpiringa me ngā tāpiringa taketake, me ētahi atu. ⑤Whakaohokia kia memeha katoa ngā rōpū hydroxyethyl, kātahi ka tāpirihia ētahi atu wāhanga ki te tauira ka huri kia oti ra ano te hua.

2. Kua rite ki te wai whaea mō te whakamahinga a muri ake nei

Ka taea e tēnei tikanga te whiriwhiri i te momo tere tonu, ā, he pānga ārai-haruru te cellulose. Ko te painga o tēnei tikanga he ngāwari ake, ā, ka taea te tāpiri tika ki te peita rapa. He rite tonu te tikanga whakarite ki ngā kaupae ①-④.

3. Hangaia hei pāreti hei kai ā muri ake nei

Nā te mea he ngoikore ngā whakarewa rauropi (kāore e rewa) mō te hydroxyethyl, ka taea te whakamahi i ēnei whakarewa hei hanga i te porridge. Ko ngā whakarewa rauropi e whakamahia whānuitia ana ko ngā wai rauropi i roto i ngā hanganga peita latex, pērā i te ethylene glycol, te propylene glycol, me ngā kaihanga kiriata (pērā i te diethylene glycol butyl acetate). Ka taea te tāpiri tika i te porridge hydroxyethyl cellulose ki te peita. Me whakaoho tonu kia memeha rawa.

In putty

I tēnei wā, i te nuinga o ngā tāone o tōku whenua, ko te putty ātete-wai, ātete-horoi hoki, he mea nui ki te tangata. Ka puta mai i te tauhohenga acetal o te waipiro vinyl me te formaldehyde. Nō reira, ka āta tangohia tēnei rauemi e te tangata, ā, ka whakamahia ngā hua raupapa cellulose ether hei whakakapi i tēnei rauemi. Arā, mō te whakawhanake i ngā rauemi hanga whare ā-taiao, ko te cellulose anake te rauemi i tēnei wā.

I roto i te putty ātete-wai, ka wehea kia rua ngā momo: te putty paura maroke me te whakapiri putty. I roto i ēnei momo putty e rua, me whiriwhiri te methyl cellulose me te hydroxypropyl methyl. Ko te whakatakotoranga matotoru kei waenganui i te 40000-75000cps. Ko ngā mahi matua a te cellulose ko te pupuri wai, te here me te whakahinuhinu.

Nā te mea he rerekē ngā tātai putty o ngā kaihanga rerekē, ko ētahi he konupūmā hina, he konupūmā māmā, he sima mā, me ētahi atu, ā, ko ētahi he paura gypsum, he konupūmā hina, he konupūmā māmā, me ētahi atu, nō reira he rerekē anō hoki ngā whakatakotoranga, te matotoru me te nui o te cellulose i tohua e ngā tātai e rua. Ko te nui i tāpirihia he tata ki te 2‰-3‰.