Peia Kohatu Tuturu me te Etera Cellulose

Ka korerohia te awe o te nui o te cellulose ether, te papatipu ngota me te tikanga whakarereke i runga i te ahua o te wai-a-wai me te ma o te peita kohatu tuuturu, ka whakamaaramahia te cellulose ether me te pai o te wai-ma o te peita kohatu tuuturu, a ka arotakengia te mahi matawhānui o te peita kohatu tūturu rapunga.

kupu matua:peita kohatu tūturu;ātete wai mā;ether cellulose

0、Kupu Whakataki

Ko te parani kowhatu tuturu he whakaehunga kapia kirikiri kirikiri paninga hoahoanga i hangaia ki te kirikiri maori, te kowhatu kuru me te paura kowhatu hei whakahiato, te whakaehunga kapia waihanga hei mea turanga me te taapiri atu ki nga momo taapiri.He kakano me te painga whakapaipai o te kohatu taiao.I roto i te kaupapa whakapaipai o waho o nga whare teitei, e paingia ana e te nuinga o nga rangatira me nga kaihanga.Heoi ano, i nga ra ua, ko te tangohanga wai me te whakamaaramatanga he tino mate o te peita kohatu.Ahakoa he take nui mo te whakaehunga, ko te taapiri o te maha o nga matū hydrophilic penei i te cellulose ether ka tino whakanui ake te whakauru wai o te kiriata peita kohatu.I roto i tenei rangahau, mai i nga ringaringa o te cellulose ether, i tātarihia te awe o te nui o te cellulose ether, te taumaha ngota ngota me te momo whakarerekētanga i runga i te ahua o te mimi wai me te maama o te peita kohatu tuuturu.

1. Ko te tikanga mo te whakauru wai me te ma o te peita kohatu tuturu

I muri i te whakamaroketanga o te paninga peita kohatu tuturu, he maamaa ki te ma ina tutaki ki te wai, ina koa i te timatanga o te whakamaroke (12h).I te rangi ua, ka ngohengohe, ka ma te paninga i muri i te horoinga e te ua mo te wa roa.Ko te take tuatahi ko te whakaehunga ka mimiti i te wai, ko te tuarua na nga matū hydrophilic penei i te cellulose ether.Kei a Cellulose ether nga mahi o te whakapakeke me te pupuri wai.Na te weriweri o nga macromolecules, he rereke te rere o te otinga ki tera o te wai o Newtonian, engari e whakaatu ana i te whanonga ka huri i te huringa o te kaha kutikuti, ara, he thixotropy teitei.Whakapai ake i te mahi hanga o te peita kohatu tuuturu.Ko te Cellulose he D-glucopyranosyl (anhydroglucose), a ko tana tauira irapoi ngawari ko (C6H10O5)n.Ko te ether cellulose he mea whakaputa e te roopu hydroxyl waipiro cellulose me te alkyl halide, etahi atu kaihoko whakamaarama ranei i raro i nga tikanga kawakore.Ko te hanganga Hydroxyethyl cellulose ether, ko te tau toharite o nga roopu hydroxyl e whakakapihia ana e nga reagents mo ia wae anhydroglucose i runga i te mekameka ngota cellulose ka kiia ko te tohu whakakapi, ko nga roopu hydroxyl 2, 3, me te 6 ka whakakapi katoa, a ko te tohu morahi o te whakakapi he 3 Ka taea e nga roopu hydroxyl koreutu i runga i te mekameka ngota o te cellulose ether te taunekeneke ki te hanga i nga here hauwai, ka taea hoki te taunekeneke ki te wai hei hanga i nga here hauwai.Ko te whakauru wai me te pupuri wai o te cellulose ether he paanga tika ki te whakauru wai me te maama o te peita kohatu tuuturu.Ko te whakauru wai me te mahi pupuri wai o te cellulose ether e whakawhirinaki ana ki te tohu o te whakakapi o te cellulose, nga whakakapi me te tohu polymerization o te cellulose ether ake.

2. Wāhanga whakamātautau

2.1 Nga taputapu me nga taputapu whakamatautau

JFS-550 miihini maha-mahi mo te whakaoho tonu, te tere tere me te mira kirikiri: Shanghai Saijie Chemical Equipment Co., Ltd.;JJ2000B toenga hiko: Changshu Shuangjie Testing Instrument Factory;CMT-4200 miihini whakamatautau hiko mo te ao: Shenzhen Sansi Experimental Equipment Co., Ltd.

2.2 tātai whakamātautau

2.3 Te tukanga whakamatautau

Taapirihia te wai, te whakapoipoi, te huakita, te antifreeze, te awhina hanga kiriata, te cellulose, te kaiwhakarite pH me te whakaehunga ki te disperser kia rite ki te tikanga kia marara noa, katahi ka tapirihia he kirikiri tae me te oho pai, katahi ka whakamahi i te nui o te mea matotoru Whakaritea te pokey. , marara kia rite, ka whiwhi peita kohatu tuturu.

Hangaia te papa ki te peita kohatu tuturu, ka mahi i te whakamatautau whakamaarama wai i muri i te rongoa mo te 12 haora (rūmaki ki te wai mo te 4 haora).

2.4 Te whakamatautau mahi

E ai ki a JG / T 24-2000 "Synthetic Resin Emulsion Sand Wall Paint", ka whakahaerehia te whakamatautau mahi, e arotahi ana ki te wai whakaahuru wai o nga peita kohatu tuuturu hydroxyethyl cellulose ether, me etahi atu tohu hangarau me tutuki nga whakaritenga.

3. Nga hua me te matapaki

E ai ki nga ahuatanga o te hydroxyethyl cellulose ether, i tino rangahauhia nga paanga o te nui o te hydroxyethyl cellulose ether, te taumaha ngota ngota me te tikanga whakarereke i runga i te aukati wai-ma o te peita kohatu tuuturu.

3.1 Te painga o te inenga

Na te piki o te nui o te hydroxyethyl cellulose ether, ka heke haere te aukati wai o te peita kohatu tuuturu.Ko te nui ake o te cellulose ether, ka nui ake te maha o nga roopu hydroxyl kore utu, ka nui ake te wai ka hanga hononga hauwai ki a ia, ka piki ake te tere o te whakauru wai o te kiriata peita kohatu tuuturu, ka heke te aukati wai.Ko te nui ake o te wai i roto i te kiriata peita, ka ngawari ake te whakamaarama i te mata, na reira ka kino ake te aukati wai ma.

3.2 Te awenga o te papatipu ngota ngota whanaunga

I te wa e rite ana te nui o nga ethers hydroxyethyl cellulose me nga papatipu ngota whanaunga rereke.Ko te nui ake o te papatipu ngota whanaunga, ko te kino o te wai whakawetiweti wai o te peita kohatu tuuturu, e whakaatu ana he paanga te taumaha ngota ngota o te hydroxyethyl cellulose etera ki te wai whakaahuru o te peita kohatu tuuturu.Ko tenei na te mea ka kaha nga here matū > here hauwai > van der Waals, ka nui ake te papatipu ngota ngota o te cellulose ether, ara, ka nui ake te tohu o te polymerization, ka nui ake nga here matū i hangaia e te huinga o nga waeine huka, ka nui ake te kaha pāhekoheko o te pūnaha katoa i muri i hanga here hauwai ki te wai , te kaha te absorption wai me te kaha pupuri wai, te kino te wai whitening ātete o te peita kohatu tūturu.

3.3 Te awe o te tikanga whakarereke

Ko nga hua whakamatautau e whakaatu ana he pai ake te whakarereketanga hydrophobic nonionic i te mea taketake, a ko te whakarereketanga anionic te mea kino rawa atu.Ko te katote hydrophobically whakarereke cellulose ether, ma te hono i nga roopu hydrophobic ki te mekameka ngota o te cellulose ether.I te wa ano, ka tutuki te matotoru o te wahanga wai na roto i te hononga hauwai o te wai me te herenga mekameka ngota.Ka whakahekehia te mahi hydrophobic o te punaha, kia pai ake ai te mahi hydrophobic o te peita kohatu tuuturu, me te pai ake o te aukati wai ma.Ko te ether cellulose kua whakarereketia e te cellulose me te polyhydroxysilicate, e whakapai ake ana i te kaha o te matotoru, te mahi anti-sag me te mahi anti-slash o te cellulose ether, engari he kaha tona katote, ka pai ake te kaha o te whakauru wai me te pupuri i te kaha o te wai, Ko te parenga o te wai ma. o te peita kohatu tūturu ka kino ake.

4. Whakamutunga

Ko te whakauru wai me te ma o te peita kohatu tuuturu e pa ana ki te maha o nga mea penei i te nui o te cellulose ether me te tikanga whakarereke o te papatipu irapoi whanaunga.Te whakauru wai me te ma o te peita kohatu tuturu.