dziwitsani:
Ma cellulose ethers amagwiritsidwa ntchito kwambiri pantchito yomanga chifukwa cha kusungidwa kwawo bwino kwa madzi, kukhuthala ndi kulumikiza katundu. Amawongolera kuyenda ndi kusinthika kwazinthu zopangira simenti ndikuwongolera mawonekedwe amakina a chinthu chomaliza. Ma putty amagwiritsidwa ntchito kwambiri pantchito yomanga kudzaza ming'alu, mabowo ndi zolakwika zina pamakoma ndi kudenga. Kugwiritsa ntchito ma cellulose ethers mu ufa wa putty kumatha kupititsa patsogolo magwiridwe antchito, kukhazikitsa nthawi komanso mtundu wonse wazinthuzo. Nkhaniyi ifotokoza zotsatira za ma viscosities osiyanasiyana a cellulose ethers pa putty powder.
Mitundu ya ma cellulose ethers:
Pali mitundu yosiyanasiyana ya ma cellulose ethers kuphatikiza methylcellulose (MC), hydroxypropylmethylcellulose (HPMC), ethylcellulose (EC) ndi carboxymethylcellulose (CMC). HPMC ndi ether yodziwika bwino ya cellulose m'makampani omanga chifukwa chakusunga bwino madzi, kukhuthala komanso zomatira. HPMC imabwera m'ma viscosities osiyanasiyana, kuchokera pansi mpaka pamwamba.
Zotsatira za cellulose ether pa putty powder:
Putty ufa umagwiritsidwa ntchito kudzaza ming'alu, mabowo ndi zolakwika zina pamakoma ndi kudenga. Kugwiritsiridwa ntchito kwa ma cellulose ethers mu putty powders kumatha kupititsa patsogolo kugwira ntchito ndi kukhazikitsa nthawi ya mankhwala. Ma cellulose ether amathanso kukonza magwiridwe antchito komanso kumamatira kwa ufa wa putty. Zotsatirazi ndi zotsatira za ma viscosities osiyanasiyana a cellulose ethers pa putty powder:
1. Low mamasukidwe akayendedwe HPMC:
Low mamasukidwe akayendedwe HPMC akhoza kusintha fluidity ndi workability wa putty ufa. Zimathandiziranso nthawi yoyika zinthu. Low-viscosity HPMC ili ndi kutentha kochepa kwa gelation, komwe kungalepheretse ufa wa putty kuti usamawumitsidwe mofulumira kwambiri. Ikhozanso kupititsa patsogolo kumamatira ndi mgwirizano wa mankhwala. Low mamasukidwe akayendedwe HPMC ndi oyenera putty ufa wofuna workability wabwino ndi yosalala.
2. Kukhuthala kwapakatikati HPMC:
Sing'anga mamasukidwe akayendedwe HPMC akhoza kusintha thixotropic katundu wa putty ufa. Ikhozanso kupititsa patsogolo kasungidwe ka madzi ndi kugwirizanitsa ntchito ya mankhwala. Yapakatikati mamasukidwe akayendedwe HPMC akhoza kusintha makina katundu wa mankhwala, monga mphamvu ndi durability. Ndiwoyenera ufa wa putty womwe umafuna kusungirako bwino kwa madzi komanso kugwirizana.
3. Kukhuthala kwakukulu HPMC:
High viscosity HPMC ikhoza kupititsa patsogolo kukhuthala ndi kutsutsa-sag ntchito ya putty powder. Ikhozanso kupititsa patsogolo kasungidwe ka madzi ndi kugwirizanitsa ntchito ya mankhwala. High mamasukidwe akayendedwe HPMC akhoza kusintha katundu makina a mankhwala, monga mphamvu ndi durability. Ndiwoyenera ufa wa putty womwe umafuna kukhuthala kwambiri komanso magwiridwe antchito a anti-sag.
Pomaliza:
Ma cellulose ethers amagwiritsidwa ntchito kwambiri pantchito yomanga chifukwa cha kusungidwa kwawo bwino kwa madzi, kukhuthala ndi kulumikiza katundu. HPMC yakhala ether yodziwika bwino ya cellulose m'makampani omanga chifukwa cha zinthu zake zabwino kwambiri. HPMC imabwera mu viscosities zosiyanasiyana, kuchokera pansi mpaka pamwamba. Kugwiritsa ntchito ma cellulose ethers okhala ndi ma viscosities osiyanasiyana kumatha kusintha magwiridwe antchito, kukhazikitsa nthawi, ntchito ya thixotropic, kusungitsa madzi, kugwira ntchito ndi makina a putty powder. Kugwiritsiridwa ntchito kwa ma cellulose ethers kumatha kupititsa patsogolo ubwino ndi ntchito ya ufa wa putty, kuwapanga kukhala oyenera ntchito zosiyanasiyana m'makampani omangamanga.
Nthawi yotumiza: Jul-20-2023