Makampani omanga nyumba akumana ndi kupita patsogolo kwakukulu kwa ukadaulo m'zaka zingapo zapitazi. Pamene nyumba zikukhala zazitali, zolimba, komanso zosagwiritsa ntchito mphamvu zambiri, zipangizo zomangira nazonso zasintha kuti zikwaniritse zofunikira pakugwira ntchito molimbika. Pakati pa zowonjezera zambiri zapadera zomwe zimathandizira pakupanga zipangizo zamakono zomangira,Hydroxypropyl Methylcellulose (HPMC)yakhala imodzi mwa zofunika kwambiri.

HPMC yokhazikika pakupanga ndi ether yopanda ionic cellulose yopangidwa kudzera mu kusintha kwa mankhwala a cellulose yachilengedwe yochokera ku thonje kapena pulasitiki woyengedwa bwino wamatabwa. Imagwiritsidwa ntchito kwambiri mu zinthu zosakaniza zouma zochokera ku simenti ndi gypsum, komwe imagwira ntchito ngati chosungira madzi, chokhuthala, chosintha rheology, chowonjezera kugwira ntchito, komanso cholimbikitsa kumatirira.

Masiku ano, pafupifupi mtundu uliwonse wa matope osakaniza ndi madzi uli ndi HPMC. Ma glue a matailosi, putty wall, skimcoats, EIFS systems, self-leveling compounds, gypsum plasters, repair mortars, waterwater, decorative render, ndi simenti render zonse zimadalira ma HPMC grades osankhidwa mosamala kuti akwaniritse ntchito yabwino kwambiri yomanga.

Pamene makampani opanga zomangamanga padziko lonse lapansi akusintha kupita ku zipangizo zouma zopangidwa ndi mafakitale, kufunikira kwa HPMC yomanga nyumba yapamwamba kukupitirirabe kukwera padziko lonse lapansi.

Kodi HPMC Yomanga Ndi Chiyani?

Hydroxypropyl Methylcellulose (HPMC) ndi polima wosungunuka m'madzi wopangidwa kudzera mu etherification ya cellulose yoyeretsedwa. Magulu a hydroxyl pa mamolekyu a cellulose amalowetsedwa pang'ono ndi magulu a methoxy ndi hydroxypropoxy, zomwe zimapangitsa kuti polima ikhale yosinthasintha yokhala ndi mphamvu zabwino zosungira madzi ndi kukhuthala.

Mosiyana ndi zowonjezera zochokera ku starch, HPMC imapereka magwiridwe antchito okhazikika pa kutentha kosiyanasiyana, pH, ndi momwe kapangidwe kake kamagwirira ntchito.

Makhalidwe Aakulu

• Kusunga bwino madzi
• Kukhuthala kwakukulu
• Mafuta abwino
• Kukana bwino kwa sag
• Nthawi yotsegulira yayitali
• Kugwira ntchito bwino
• Mphamvu yolimbitsa mgwirizano
• Kukhuthala kokhazikika
• Si poizoni
• Zowola
• Kugwirizana bwino kwambiri ndi zowonjezera simenti

Gome 1. Chidziwitso Choyambira cha HPMC ya Kapangidwe ka Nyumba

Njira Yopangira Nyumba Yopangira HPMC

Kupanga kwa HPMC yopangidwa ndi kapangidwe kake kumaphatikizapo machitidwe angapo a mankhwala olamulidwa omwe amapangidwa kuti akwaniritse milingo yosinthika yokhazikika komanso kulemera kwa mamolekyulu.

Gawo 1: Kukonzekera Zinthu Zopangira

Ma linter a thonje loyera kwambiri kapena matabwa amatsukidwa ndi kukonzedwa kuti apeze alpha-cellulose popanda kuipitsidwa kwambiri.

Gawo 2: Kusakaniza kwa Alkalization

Cellulose imachiritsidwa ndi sodium hydroxide, zomwe zimapangitsa kuti ulusi utuluke ndikuyambitsa magulu a hydroxyl.

Gawo 3: Kukonza Ether

Cellulose yogwiritsidwa ntchito imachitapo kanthu ndi:

• Methyl chloride
• Propylene okusayidi

Izi zimayambitsa zinthu zolowa m'malo mwa methoxy ndi hydroxypropoxy.

Gawo 4: Kusalowererapo

Alkali wotsalira amachotsedwa kuti polima ikhale yokhazikika.

Gawo 5: Kutsuka

Kusamba kangapo kumachotsa mchere ndi zinthu zina zomwe zimayambitsa vutoli.

Gawo 6: Kuumitsa

HPMC yoyeretsedwa imaumitsidwa pansi pa mikhalidwe yoyang'aniridwa bwino.

Gawo 7: Kupera

Zinthu zouma zimaphwanyidwa kukhala ufa wosalala wokhala ndi tinthu tating'onoting'ono tomwe timayang'aniridwa bwino.

Gawo 8: Kuyesa Ubwino

Gulu lililonse lopanga limayesedwa bwino mu labotale lisanayambe kulongedza.

Gome 2. Chidule cha Njira Yopangira Zinthu

Kapangidwe ka Mankhwala ndi Katundu

Kapangidwe ka mamolekyulu aHPMCimatsimikiza momwe imagwirira ntchito mu makina a matope.

Magulu a hydroxypropyl amathandizira kusungunuka kwa madzi ndi kusinthasintha, pomwe magulu a methoxy amathandizira kukhuthala ndi kupanga filimu. Kugwirizana pakati pa zinthuzi kumayendetsedwa mosamala popanga zinthu zosiyanasiyana kuti apange mitundu yosiyanasiyana ya ntchito zinazake.

Katundu Wathupi

Maonekedwe

• Ufa woyera
• Wopanda fungo
• Wopanda kukoma
• Kuyenda kwaulere

Kusungunuka

HPMCAmafalikira mosavuta m'madzi ozizira ndipo amapanga yankho lowonekera kapena lowala pang'ono. Sasungunuka m'madzi otentha koma amafalikira mofanana asanasungunuke akazizira.

Kutentha kwa Gelation

Chinthu chimodzi chapadera cha HPMC ndi kutentha kwa gelation. Pamene kutentha kukukwera, madzi amadzi amapanga gel yosinthika, zomwe zimathandiza kuti ikhale yokhazikika panthawi yogwiritsa ntchito.

Gome 3. Kapangidwe Kabwino Kathupi

Chifukwa Chake HPMC Ndi Yofunika Kwambiri Pa Zipangizo Zomangira

Mapangidwe a matope ouma amakono amafunika magwiridwe antchito osiyanasiyana nthawi imodzi:

• Kusakaniza kosavuta
• Kusoka kosalala
• Nthawi yokwanira yotsegulira
• Mphamvu yolimba kwambiri
• Kusunga madzi
• Kukana ming'alu
• Kukana kwa sag
• Kuyeretsa kofanana

Chowonjezera chimodzi chomwe chingathe kukonza zinthu zonsezi chimapangitsa kuti kapangidwe kake kakhale kosavuta. HPMC imakwaniritsa bwino kwambiri udindowu.

Ntchito Zazikulu za HPMC Yomanga

1. Kusunga Madzi

Kusunga madzi ndiye ntchito yofunika kwambiri ya HPMC.

Mtondo watsopano uyenera kusunga chinyezi chokwanira kuti simenti iume bwino. Popanda HPMC, madzi amatengedwa mwachangu ndi zinthu zofewa kapena kuphwanyika, zomwe zimapangitsa kuti asaume bwino komanso kuti asamamatire bwino.

HPMC imapanga netiweki yoteteza polima yomwe imachepetsa kusamuka kwa madzi pamene ikugwira ntchito bwino.

Ubwino

• Kusungunuka bwino kwa simenti
• Mphamvu yapamwamba
• Kugwirizana bwino
• Kuchepa kwa kuchepa
• Nthawi yayitali yogwira ntchito

2. Kukhuthala kwa Mphamvu

HPMC imawonjezera kwambiri kukhuthala kwa matope, zomwe zimapangitsa kuti akhale ofewa komanso ofewa omwe ndi osavuta kugwiritsa ntchito.

Kukhuthala kumeneku kumathandiza kuchepetsa kulekanitsa zinthu ndikuwongolera kufanana kwa zinthu panthawi yosakaniza ndi kuyika.

Gome 4. Mphamvu ya HPMC pa Kugwirizana kwa Mortar

3. Kugwira Ntchito Bwino

Ogwira ntchito yomanga amapindula kwambiri ndi matope opangidwa ndi HPMC.

Ubwino wake ndi monga:

• Kusakaniza kosavuta
• Kufalikira bwino
• Kutopa pang'ono
• Kusoka kofanana
• Kumaliza kutsuka
• Kuchepetsa kukoka

4. Kukulitsa Nthawi Yotsegulira

Nthawi yotseguka imatanthauza nthawi yomwe matope amatha kugwira ntchito pambuyo powagwiritsa ntchito.

Mwa kusunga chinyezi ndikuchepetsa kutaya madzi, HPMC imawonjezera nthawi yotsegulira, zomwe zimathandiza okhazikitsa kukhala omasuka kwambiri poyika zinthu molondola.

5. Kukana Kusakhazikika

Kukhazikitsa matailosi oyima kumafuna mphamvu yabwino kwambiri yoletsa kugwa.

HPMC imawonjezera mphamvu ya matope atsopano, zomwe zimathandiza kupewa matailosi kuti asaterereke asanayambe kuyika zomatira.

Gome 5. Kuwongolera Magwiridwe Antchito

Magiredi Osawoneka Ogwiritsidwa Ntchito Pomanga

Ntchito zosiyanasiyana zimafuna mitundu yosiyanasiyana ya ma viscosity.

Ubwino Poyerekeza ndi Zowonjezera Zachikhalidwe

Kale, matope omangira ankadalira laimu, zinthu zochokera ku starch, kapena chingamu chachilengedwe kuti agwire bwino ntchito. Zipangizozi nthawi zambiri zinkasonyeza kuti sizigwira ntchito bwino, sizinkasungidwa bwino, kapena kuti zitha kuwonongeka ndi tizilombo toyambitsa matenda.

HPMC yomanga bwino imapereka ubwino womveka bwino:

Zinthu Zomwe Zimakhudza Kugwira Ntchito kwa HPMC

Kugwira ntchito kwa HPMC mu kapangidwe kake kumadalira zinthu zingapo:

• Kalasi ya kukhuthala:Kukhuthala kwambiri nthawi zambiri kumathandiza kusunga madzi koma kungachepetse kuyenda kwa madzi.
• Mlingo:Kuchuluka kwambiri kungachedwetse kukhazikitsa ndikuwonjezera mtengo.
• Kukula kwa tinthu:Tinthu tating'onoting'ono timafalikira mofulumira m'makina osakaniza ouma.
• Kutentha:Kutentha kumathandizira kuti madzi asungunuke, zomwe zimapangitsa kuti kusunga madzi kukhale kofunika kwambiri.
• Mtundu wa simenti:Simenti zosiyanasiyana zimagwirizana mosiyana ndi ma ether a cellulose.
• Zowonjezera zina:Kugwirizana ndi ufa wa polymer wosungunuka (RDP), starch ether, defoamers, ndi retarders kumakhudza magwiridwe antchito omaliza.

Malangizo Omwe Amaperekedwa Nthawi Zonse

Mafunso Ofunsidwa Kawirikawiri (Gawo 1)

1. Kodi HPMC imagwira ntchito yotani pa zipangizo zomangira?

Zimathandiza kusunga madzi, kugwira ntchito mosavuta, kumamatira, nthawi yotseguka, komanso kukana kutsika kwa madzi pamene zikuwonjezera magwiridwe antchito onse a zinthu zopangidwa ndi simenti ndi gypsum.

2. N’chifukwa chiyani kusunga madzi n’kofunika?

Kusunga madzi okwanira kumathandiza simenti kuti ipeze madzi okwanira, zomwe zimapangitsa kuti ikhale yolimba kwambiri, ikhale yogwirizana bwino, komanso kuti ichepe ming'alu.

3. Kodi nyumba ya HPMC ndi yotetezeka ku chilengedwe?

Inde. HPMC imachokera ku cellulose yachilengedwe ndipo imaonedwa kuti ndi polima yosawononga chilengedwe, yosakhala ndi poizoni yoyenera kugwiritsidwa ntchito m'mafakitale osiyanasiyana.

4. Ndi mtundu uti wa kukhuthala womwe umagwiritsidwa ntchito kwambiri pa guluu wa matailosi?

Magiredi m'gulu la75,000–100,000 mPa·s (cP)amagwiritsidwa ntchito kwambiri, ngakhale kuti kusankha bwino kumadalira kapangidwe kake ndi momwe amagwiritsidwira ntchito.

5. Kodi HPMC ingagwiritsidwe ntchito pazinthu zopangidwa ndi gypsum?

Inde. Imagwiritsidwa ntchito kwambiri mu gypsum plasters, ma joint compounds, ndi zipangizo zodziyezera zokha zopangidwa ndi gypsum kuti zigwire bwino ntchito komanso kuti madzi azisungidwa bwino.