Kupopera utoto wosalowa madzi wa phula la rabara lokhazikika mwachangu ndi utoto wopangidwa ndi madzi. Ngati diaphragm sinasamalidwe bwino mutapopera, madzi sadzaphwa kwathunthu, ndipo thovu lodzaza mpweya lidzawonekera mosavuta panthawi yophika kutentha kwambiri, zomwe zimapangitsa kuti filimu yosalowa madzi ichepetse, komanso kuti isalowe madzi, isagwe, komanso isagwe. Chifukwa chakuti malo omangira nthawi zambiri samakhala osasunthika, ndikofunikira kukonza kutentha kwambiri kwa utoto wosalowa madzi wa phula la rabara lokhazikika mwachangu kuchokera pamalingaliro a kapangidwe kake.
Etha ya cellulose yosungunuka m'madzi inasankhidwa kuti iwonjezere kukana kutentha kwambiri kwa zipangizo zothira madzi za phula la mphira zomwe zimathira madzi mwachangu. Nthawi yomweyo, zotsatira za mtundu ndi kuchuluka kwa etha ya cellulose pa makhalidwe a makina, kupopera madzi, kukana kutentha ndi kusungidwa kwa zokutira zothira madzi za phula la mphira zomwe zimathira madzi mwachangu zinaphunziridwa.
Kukonzekera chitsanzo
Sungunulani hydroxyethyl cellulose mu 1/2 ya madzi oyeretsedwa, sakanizani mpaka itasungunuka kwathunthu, kenako onjezerani emulsifier ndi sodium hydroxide ku 1/2 ya madzi oyeretsedwa ndikusakaniza mofanana kuti mukonze yankho la sopo, ndipo pomaliza, sakanizani zomwe zili pamwambapa. Mayankho awiriwa amasakanizidwa mofanana kuti mupeze yankho lamadzi la hydroxyethyl cellulose, ndipo pH yake imayendetsedwa pakati pa 11 ndi 13.
Sakanizani phula losungunuka, neoprene latex, hydroxyethyl cellulose aqueous solution, defoamer, ndi zina zotero malinga ndi chiŵerengero china kuti mupeze zinthu A.
Konzani kuchuluka kwa madzi a Ca(NO3)2 ngati chinthu cha B.
Gwiritsani ntchito zida zapadera zamagetsi zopopera kuti mupopere zinthu A ndi zinthu B papepala lotulutsira nthawi imodzi, kuti zinthu ziwirizi zigwirizane ndikuyikidwa mwachangu mu filimu panthawi ya njira yolumikizirana.
Zotsatira ndi zokambirana
Hydroxyethyl cellulose yokhala ndi kukhuthala kwa 10 000 mPa·s ndi 50 000 mPa·s inasankhidwa, ndipo njira yowonjezera pambuyo pake idagwiritsidwa ntchito kuti iphunzire zotsatira za kukhuthala ndi kuchuluka kwa hydroxyethyl cellulose pa ntchito yopopera ya zokutira zosalowa madzi za asphalt ya mphira mwachangu, mawonekedwe opangira filimu, kukana kutentha, mawonekedwe a makina ndi mawonekedwe osungira. Pofuna kupewa kuwonongeka kwa dongosolo lomwe limayambitsidwa ndi kuwonjezera yankho la hydroxyethyl cellulose, zomwe zimapangitsa kuti demulsification ichitike, emulsifier ndi pH regulator zinawonjezedwa panthawi yokonzekera yankho la hydroxyethyl cellulose.
Mphamvu ya Hydroxyethyl Cellulose (HEC) pa Kupopera ndi Kupanga Mafilimu a Zophimba Zosalowa Madzi
Kukhuthala kwa hydroxyethyl cellulose (HEC) (Hec) kukakhala kwakukulu, kumakhudza kwambiri kupopera ndi kupanga mafilimu kwa zokutira zosalowa madzi. Pamene kuchuluka kwake kowonjezera kuli 1‰, HEC yokhala ndi kukhuthala kwa 50 000 mPa·s imapangitsa kukhuthala kwa dongosolo lophimba losalowa madzi kukhala kwakukulu. Ikawonjezeka ndi nthawi 10, kupopera kumakhala kovuta kwambiri, ndipo diaphragm imachepa kwambiri, pomwe HEC yokhala ndi kukhuthala kwa 10 000 mPa·s imakhala ndi zotsatira zochepa pakupopera, ndipo diaphragm imachepa mwachibadwa.
Zotsatira za Hydroxyethyl Cellulose (HEC) pa Kukana Kutentha kwa Zophimba Zosalowa Madzi
Chophimba chopanda madzi cha phula chopangidwa ndi mphira chopangidwa ndi mphira chopangidwa ndi mphira chopangidwa ndi mphira chopangidwa ndi mphira chopangidwa ndi mphira chopangidwa ndi mphira chopangidwa ndi mphira chopangidwa ndi mphira chopangidwa ndi mphira chopangidwa ndi mphira chopangidwa ndi mphira chopangidwa ndi madzi chomwe chafotokozedwa mu GB/T 16777-2008. Hydxyethyl cellulose yokhala ndi kukhuthala kwa 50 000 mPa·s ili ndi kulemera kwakukulu kwa mamolekyulu. Kuwonjezera pa kuchedwetsa kusungunuka kwa madzi, imakhalanso ndi mphamvu inayake, zomwe zimapangitsa kuti madzi azivuta kutuluka mkati mwa chophimbacho, kotero imapanga ziphuphu zazikulu. Kulemera kwa mamolekyulu a hydroxyethyl cellulose yokhala ndi kukhuthala kwa 10 000 mPa·s ndi kochepa, komwe sikukhudza mphamvu ya zinthuzo ndipo sikukhudza kusinthasintha kwa madzi, kotero palibe kupanga thovu.
Zotsatira za kuchuluka kwa hydroxyethyl cellulose (HEC) komwe kwawonjezeredwa
Hydroxyethyl cellulose (HEC) yokhala ndi kukhuthala kwa 10,000 mPa·s idasankhidwa ngati chinthu chofufuzira, ndipo zotsatira za kuwonjezera kosiyanasiyana kwa HEC pa magwiridwe antchito opopera ndi kukana kutentha kwa zokutira zosalowa madzi zidafufuzidwa. Poganizira momwe kupopera kumagwirira ntchito, kukana kutentha ndi mawonekedwe a makina a zokutira zosalowa madzi mokwanira, zimaganiziridwa kuti kuchuluka koyenera kwa hydroxyethyl cellulose ndi 1‰.
Latex ya neoprene mu chofunda chopanda madzi cha asphalt chopopera madzi chopopera madzi ndi asphalt yosungunuka imakhala ndi kusiyana kwakukulu mu polarity ndi density, zomwe zimapangitsa kuti zinthu A zigawidwe munthawi yochepa panthawi yosungira. Chifukwa chake, panthawi yomanga pamalopo imafunika kusunthidwa mofanana isanapopera madzi, apo ayi ingayambitse ngozi zabwino. Hydroxyethyl cellulose imatha kuthetsa vuto la delamination la zofunda zopanda madzi za asphalt zopopera madzi zopopera madzi zopopera madzi. Pambuyo pa mwezi umodzi wosungira, palibe delamination. Kukhuthala kwa dongosolo sikusintha kwambiri, ndipo kukhazikika kwake kuli bwino.
kuyang'ana kwambiri
1) Pambuyo poti hydroxyethyl cellulose yawonjezedwa ku chophimba chosalowa madzi cha phula chothira madzi chomwe chimapopedwa mwachangu, kukana kutentha kwa chophimba chosalowa madzi kumawonjezeka kwambiri, ndipo vuto la thovu lokhuthala pamwamba pa chophimbacho limawonjezeka kwambiri.
2) Poganizira kuti sizikhudza njira yopopera, momwe filimu imagwirira ntchito komanso momwe zinthu zimagwirira ntchito, hydroxyethyl cellulose idapezeka kuti ndi hydroxyethyl cellulose yokhala ndi kukhuthala kwa 10 000 mPa·s, ndipo kuchuluka kwa zowonjezerako kunali 1‰.
3) Kuwonjezera hydroxyethyl cellulose kumathandizira kukhazikika kwa chophimba chosalowa madzi cha asphalt chomwe chimapopedwa mwachangu, ndipo palibe delamination yomwe imachitika mutasunga kwa mwezi umodzi.
Nthawi yotumizira: Meyi-29-2023