Ko te gypsum whakakore-pūkawa he hua taha o te tukanga whakakore-pūkawa hau paru i ngā tipu hiko waro, i ētahi atu tipu rānei e whakamahi ana i ngā wahie kei roto he whanariki. Nā tōna ātete nui ki te ahi, ki te wera me te makuku, kua whakamahia whānuitia i roto i te umanga hanga hei rauemi hanga. Heoi, ko tētahi o ngā wero nui o te whakamahi i te gypsum whakakore-pūkawa ko tōna wera nui o te makuku, ka arahi pea ki ngā raruraru pēnei i te pakaru me te whakarerekētanga i te wā e whakatakoto ana me te whakapakeke. Nō reira, me kimi he tikanga whai hua hei whakaiti i te wera o te makuku o te gypsum whakakore-pūkawa me te pupuri tonu i ōna āhuatanga miihini me ōna āhuatanga.
Ko ngā cellulose ethers he tāpiringa e whakamahia whānuitia ana i roto i te umanga hanga hei whakapai ake i te mahi, te kaha me te roa o ngā rauemi sima. He polymer kore-paitini, pirau-koiora, he mea whakahou ake i ahu mai i te cellulose, te matū waro tino nui o te ao. Ka taea e te cellulose ether te hanga i tētahi hanganga rite ki te tiēre pumau i roto i te wai, ka taea te whakapai ake i te pupuri wai, te ātete totoro me te ōritetanga o ngā rauemi sima. Hei tāpiri, ka taea hoki e ngā cellulose ethers te pā ki ngā tukanga whakamakuku me te whakatakoto o ngā rauemi gypsum, ka pā atu ki ō rātou āhuatanga miihini me ngā āhuatanga.
Te pānga o te cellulose ether ki te tukanga whakamakuku me te whakapakeketanga o te gypsum
He matū konupūmā whanariki dihydrate te gypsum e tauhohe ana ki te wai hei hanga poraka hemihydrate konupūmā whanariki matotoru, mārō hoki. He uaua te tukanga whakamakuku me te whakapakeketanga o te gypsum, ā, he maha ngā wāhanga e uru ana, tae atu ki te whakapūtanga, te tipu, te whakatioata, me te whakapakeketanga. Ko te tauhohenga tuatahi o te gypsum me te wai ka puta he wera nui, e kiia nei ko te wera o te whakamakukutanga. Ka taea e tēnei wera te whakararu i te wera me te mimiti i roto i te rauemi gypsum, ka arahi pea ki ngā kapiti me ētahi atu hapa.
Ka taea e ngā etera cellulose te pā ki ngā tukanga whakamakuku me te whakatakoto o te gypsum mā roto i ētahi tikanga. Tuatahi, ka taea e ngā etera cellulose te whakapai ake i te mahi me te ōrite o ngā rauemi e ahu mai ana i te gypsum mā te hanga i ngā marara pumau me te ōrite ki roto i te wai. Mā tēnei ka whakaitihia te hiahia wai, ka whakanuia hoki te rere o te rauemi, ā, ka whakahaere i te tukanga whakamakuku me te whakatakoto. Tuarua, ka taea e ngā etera cellulose te hopu me te pupuri i te makuku i roto i te rauemi mā te hanga i tētahi whatunga rite ki te tiēre, ā, ka whakarei ake i te kaha pupuri wai o te rauemi. Mā tēnei ka roa ake te wā whakamakuku, ka whakaitihia hoki te kaha mō te ahotea wera me te whakahekenga. Tuatoru, ka taea e ngā etera cellulose te whakaroa i ngā wāhanga tuatahi o te tukanga whakamakuku mā te mimiti ki runga i te mata o ngā tioata gypsum me te aukati i tō rātou tipu me te tioata. Mā tēnei ka whakaitihia te tere tīmatanga o te wera o te whakamakuku, ā, ka whakaroa i te wā whakatakoto. Tuawhā, ka taea e ngā etera cellulose te whakarei ake i ngā āhuatanga miihini me te mahi a ngā rauemi e ahu mai ana i te gypsum mā te whakanui ake i tō rātou kaha, te roa me te ātete ki te whakarerekētanga.
Ngā āhuatanga e pā ana ki te wera o te whakamakuku o te gypsum kua whakakorengia te whanariki
He maha ngā āhuatanga e pāngia ai te wera o te waikura o te gypsum whakakore-pūkawa, tae atu ki te hanganga matū, te rahi o te matūriki, te nui o te makuku, te pāmahana me ngā tāpiringa e whakamahia ana i roto i te rauemi. Ka rerekē pea te hanganga matū o te gypsum whakakore-pūkawa i runga i te momo wahie me te tukanga whakakore-pūkawa e whakamahia ana. I te nuinga o te wā, ki te whakatauritea ki te gypsum tūturu, he nui ake ngā poke o te gypsum whakakore-pūkawa pērā i te konupūmā whanariki hemihydrate, te konupūmā kāponāte, me te silica. Ka pā tēnei ki te nui o te waikura me te nui o te wera e puta ana i te wā o te tauhohenga. Ka pā anō hoki te rahi o te matūriki me te horahanga mata motuhake o te gypsum whakakore-pūkawa ki te tere me te kaha o te wera waikura. Ka taea e ngā matūriki iti me te horahanga mata motuhake nui ake te whakanui ake i te horahanga pa me te whakahaere i te tauhohenga, ka hua ake he wera waikura teitei ake. Ka taea hoki e te nui o te wai me te pāmahana o te rauemi te pā ki te wera waikura mā te whakahaere i te tere me te whānuitanga o te tauhohenga. Ka taea e te nui o te wai me te pāmahana iti ake te whakaiti i te tere me te kaha o te wera waikura, ko te iti o te wai me te pāmahana teitei ake ka taea te whakanui ake i te tere me te kaha o te wera waikura. Ka taea e ngā tāpiringa pēnei i te cellulose ethers te pā ki te wera o te wai mā te taunekeneke ki ngā tioata gypsum me te whakarerekē i ō rātou āhuatanga me te whanonga.
Ngā painga pea o te whakamahi i ngā etera cellulose hei whakaiti i te wera o te whakamakuku o te gypsum kua whakakorengia te whanariki
He maha ngā painga pea ka puta mai i te whakamahinga o ngā cellulose ethers hei tāpiri hei whakaiti i te wera o te wai o te gypsum kua whakakorengia te whanariki, tae atu ki:
1. Whakapai ake i te ngāwari o te mahi me te ōritetanga o ngā rauemi, he mea whai hua tēnei mō te whakaranu, te whakatakotoranga me te whakaritenga o ngā rauemi.
2. Whakaitihia te hiahia wai, me te whakanui ake i te rere o ngā rauemi, ka taea ai te whakapai ake i ngā āhuatanga ā-pūkaha me te whakamahinga o ngā rauemi.
3. Whakapai ake i te kaha pupuri wai o te rauemi, me te whakaroa i te wā makuku o te rauemi, kia whakaitihia ai te ahotea wera me te mimiti pea.
4. Whakaroa i te wāhanga tuatahi o te whakamakuku, whakaroa i te wā whakapakeke o ngā rauemi, whakaiti i te uara tihi o te wera whakamakuku, me te whakapai ake i te haumaru me te kounga o ngā rauemi.
5. Whakapai ake i ngā āhuatanga ā-pūkaha me te mahi a ngā rauemi, ka taea ai te whakapai ake i te roa, te kaha me te ātete ki te hurihanga o ngā rauemi.
6. Kāore he paitini o te cellulose ether, he pirau-koiora, he whakahou hoki, ka taea te whakaiti i te pānga ki te taiao, me te whakatairanga i te whanaketanga tauwhiro o te umanga hanga.
hei whakamutunga
He tāpiri whai hua ngā cellulose ethers ka taea te awe i ngā tukanga whakamakuku me te whakatakoto o te gypsum maroke mā te whakapai ake i te mahi, te ōritetanga, te pupuri wai me ngā āhuatanga miihini o te rauemi. Ka taea e te taunekeneke i waenga i ngā cellulose ethers me ngā tioata gypsum te whakaiti i te wera nui o te whakamakuku me te whakaroa i te wā whakatakoto, ka taea ai te whakapai ake i te haumaru me te kounga o te rauemi. Heoi, ko te whai huatanga o ngā cellulose ethers ka whakawhirinaki pea ki ngā āhuatanga pēnei i te hanganga matū, te rahi o te matūriki, te nui o te makuku, te pāmahana me ngā tāpiringa e whakamahia ana i roto i te rauemi. Me arotahi ngā rangahau ā muri ake nei ki te arotau i te horopeta me te hanganga o ngā cellulose ethers kia tutuki ai te whakaiti e hiahiatia ana i te wera o te whakamakuku o te gypsum kua whakakorea te whanariki me te kore e pā ki ōna āhuatanga miihini me ōna āhuatanga. Hei tāpiri, me tūhuratia anō me te aromatawai i ngā painga ōhanga, taiao, me te pāpori pea o te whakamahi i ngā cellulose ethers.
Wā tuku: Oketopa-11-2023