Hydroxypropyl Methylcellulose (HPMC)ndi ether yogwiritsidwa ntchito mosiyanasiyana ya cellulose yomwe imagwiritsidwa ntchito kwambiri popanga zinthu zomangira, mankhwala, chakudya, zokutira, zinthu zosamalira thupi, ndi mafakitale ena. Chimodzi mwa zinthu zofunika kwambiri zomwe zimagwiritsidwa ntchito posankha HPMC ndi mtundu wa kukhuthala.

Kusankha kukhuthala koyenera si nkhani yongosankha chiwerengero chachikulu kwambiri. Kukhuthala kwa HPMC kumakhudza kukhuthala, kusunga madzi, rheology, kugwira ntchito bwino, kuyenda bwino, kukana kutsika, ndi khalidwe la kukonza. Kuchuluka kwabwino kumadalira kugwiritsa ntchito, kapangidwe kake, mlingo, ndi magwiridwe antchito omwe mukufuna.

Kodi Kukhuthala kwa HPMC N'chiyani?

Kukhuthala kwa HPMC kumafotokoza kukana kwa madzi a yankho la HPMC pambuyo poti polima yasungunuka. Pamene maunyolo a polymer a HPMC akusungunuka ndikukula m'madzi, amawonjezera kukana kwa madziwo. Magulu apamwamba a kukhuthala nthawi zambiri amagwirizanitsidwa ndi kulemera kwakukulu kwa mamolekyulu ndi zotsatira zolimba kwambiri.

Kukhuthala kumaonekera nthawi zambiri mumPa·s or cP (centipoise)Kuti mugwiritse ntchito mphamvu yosinthasintha:

1 mPa·s ≈ 1 cP

Komabe, kuchuluka kwa kukhuthala kwa HPMC kumakhala kofunikira pokhapokha ngati mikhalidwe yoyesera yadziwika. Mwachitsanzo, kuchuluka kwa kukhuthala kwa HPMC kwa mankhwala nthawi zambiri kumayesedwa pogwiritsa ntchito yankho lamadzi la 2% pa 20°C pansi pa mikhalidwe yoyesera yomwe yatchulidwa.

Chifukwa chake, zinthu ziwiri zomwe zili ndi ma viscosity ofanana siziyenera kuganiziridwa zokha kuti zimagwira ntchito mofanana.

Gulu la HPMC la Kukhuthala kwa Magiredi

ZamalondaHPMCimapezeka m'mitundu yosiyanasiyana ya kukhuthala. Zinthu zogwirira ntchito yomanga zimatha kukhala kuyambira kukhuthala kochepa mpaka kufika pa ma grade pafupifupi 200,000 mPa·s, kutengera wogulitsa ndi momwe akugwiritsira ntchito.

Mitundu iyi ndi magulu othandiza popanga zinthu osati miyezo ya makampani onse. Opanga aliyense payekhapayekha amatha kutanthauzira mitundu yawo mosiyana.

Chifukwa Chake Kukhuthala kwa HPMC N'kofunika

HPMC ingapereke ntchito zingapo mu kapangidwe kake, kuphatikizapo:

· Kusunga madzi

· Kukhuthala

· Kusintha kwa Rheology

· Kugwira ntchito bwino

· Kugwirizana bwino

· Kukana kugwedezeka

· Nthawi yabwino yotsegulira

· Mafuta odzola

· Kukhazikika kwa kuyimitsidwa

Kukhuthala kwakukulu nthawi zambiri kumapangitsa kuti madzi asayende bwino. Izi zingathandize kuti thupi lisamayende bwino komanso kuti lisagwe, koma kukhuthala kwambiri kungapangitse kuti chinthucho chikhale chovuta kusakaniza, kupopa, kufalitsa, kapena kugawa bwino.

Chifukwa chake, cholinga chake ndi kupezakukhuthala kwabwino kwambiri, m'malo mosankha giredi yapamwamba kwambiri yokha.

Kukhuthala kwa HPMC ndi Kusunga Madzi

Kusunga madzi ndi chimodzi mwa ntchito zofunika kwambiri za HPMC mu zinthu zopangidwa ndi simenti ndi gypsum.

HPMC imathandiza kulamulira kayendedwe ka madzi mkati mwa matope atsopano, zomwe zimathandiza kuti simenti kapena tinthu ta gypsum tikhalebe ndi madzi okwanira komanso zimathandiza kuti ntchito ikhale yogwira ntchito bwino.

Kawirikawiri, kuonjezera kukhuthala kwa HPMC kungathandize kuti madzi azigwira bwino ntchito, koma kukhuthala si chinthu chokhacho chomwe chimachitika. Mlingo, makhalidwe osinthira, kapangidwe ka mamolekyu, kukula kwa tinthu tating'onoting'ono, mtundu wa simenti, kapangidwe ka zodzaza, ndi kuchuluka kwa madzi zonse zingakhudze momwe zimagwirira ntchito.

Tebulo ili liyenera kugwiritsidwa ntchito ngati poyambira chifukwa magwiridwe antchito enieni amadalira kapangidwe kake konse.

Momwe Mungasankhire HPMC pa Mapulogalamu Osiyanasiyana

HPMC ya Matailosi Aluminiyamu

Guluu wa matailosi umafuna kulinganiza pakati pa:

· Kusunga madzi

· Nthawi yotsegulira

· Kugwira ntchito bwino

· Kukana kutsetsereka

· Mgwirizano

· Kutha kunyamula katundu

· Kumatira

HPMC yokhuthala pang'ono nthawi zambiri imakhala poyambira kothandiza. Kutengera ndi kapangidwe kake, opanga amatha kuyesa ma gredi mozungulira10,000–40,000 mPa·s.

Kukhuthala kwambiri kungathandize kuti thupi likhale lolimba komanso lolimba, koma kukhuthala kwambiri kungapangitse kuti guluu likhale lovuta kupesa ndi trowel.

HPMC ya Wall Putty

Putty ya pakhoma imafunika kuyikidwa bwino, kusunga madzi okwanira, kugwirizana bwino, komanso kumalizidwa bwino.

HPMC yokhala ndi kukhuthala kwapakati mpaka kwakukulu ingaganizidwe ngati pakufunika kusunga madzi ambiri m'thupi ndi m'thupi.

Komabe, kukhuthala kwambiri kungapangitse kuti mankhwalawo akhale omata komanso okana kugwiritsa ntchito.

HPMC ya Simenti Yopangira Simenti

Dothi la simenti nthawi zambiri limafuna:

· Kugwira ntchito bwino

· Kusunga madzi

· Mgwirizano

· Kumatira

· Kutsika kolamulidwa

HPMC yokhala ndi kukhuthala kwapakati nthawi zambiri ndi poyambira kothandiza. Ngati matopewo ndi ochulukirapo kapena ataya madzi mwachangu, kalasi yokulirapo kapena mlingo wosinthidwa ukhoza kuyesedwa.

HPMC ya Gypsum Plaster

Pulasitiki ya gypsum imafuna kusunga madzi bwino, mafuta odzola, kugwira ntchito mosavuta, komanso kuyang'anira bwino matenda a rheological.

Ma HPMC otsika mpaka apakatikati okhala ndi kukhuthala kotsika akhoza kukhala oyenera kutengera mtundu wa gypsum ndi kapangidwe kake.

Kusankha kolondola kuyeneranso kuganizira nthawi yokhazikitsa chifukwa kusintha kwa ether ya cellulose kumatha kukhudza momwe zinthu zilili zatsopano.

HPMC Yodzipangira Mtondo Wodziyimira Payokha

Mafakitale odziyimira okha ndi osiyana ndi ma mortars achikhalidwe.

Amafuna:

· Kuthamanga kwambiri

· Kulinganiza bwino

· Kugawanitsa anthu molamulidwa

· Choyimitsa chokhazikika

· Kupangidwa kwa malo osalala

Kukhuthala kwambiri kwa HPMC kungasokoneze kayendedwe ka madzi. Chifukwa chake, kukhuthala kochepa kapena kwapakati kungakhale koyenera kwambiri.

Cholinga chake ndi kupereka kukhazikika kokwanira popanda kuwononga magwiridwe antchito odziyimira pawokha.

HPMC ya EIFS

Makina Otetezera Kunja ndi Kumaliza Amafunika kumamatira bwino, kusunga madzi, kugwira ntchito mosavuta, komanso kukana kutsika.

HPMC yokhala ndi kukhuthala kwapakati ingakhale poyambira kothandiza. Gawo lomaliza liyenera kukonzedwa bwino pamodzi ndi simenti, zodzaza, RDP, ndi zina zowonjezera.

HPMC Kukhuthala Kusankha Table

Kodi Kukhuthala Kwambiri kwa HPMC Nthawi Zonse Kumatanthauza Ubwino Wabwino?

Ayi.

Ichi ndi chimodzi mwa mfundo zofunika kwambiri pakusankha HPMC.

HPMC ya 100,000 mPa·s si yabwino kuposa ya 20,000 mPa·s. Ndi chinthu cholimba kwambiri.

Mwachitsanzo:

· Mtondo wodzisankhira wokha ukhoza kupindula ndi kukhuthala kochepa.

· Chomatira cha matailosi chingafunike kukhuthala kwapakati.

· Chomangira cholimba chingafunike kukhuthala kwambiri.

· Kugwiritsa ntchito mankhwala oletsa kutulutsa mankhwala kungafunike magiredi enaake okhala ndi kukhuthala kwakukulu.

Giredi yabwino kwambiri ndi yomwe imapereka magwiridwe antchito ofunikira okhala ndi mawonekedwe ovomerezeka a kukonza ndi mtengo.

Kukhuthala ndi Mlingo wa HPMC

Kukhuthala ndi mlingo ziyenera kuganiziridwa nthawi zonse pamodzi.

Mwachitsanzo, wopanga angayerekezere:

Pambuyo pozindikira mtundu wabwino kwambiri wa kukhuthala, wopanga akhoza kukonza mlingo wake:

Njira imeneyi imathandiza kuzindikira mgwirizano wabwino pakati pa magwiridwe antchito ndi mtengo.

Kukhuthala kwa HPMC Sikokhako Komwe Kumayimira Magiredi

Zinthu ziwiri za HPMC zomwe zimakhala ndi kukhuthala kofanana zimatha kuchita zinthu mosiyana.

Opanga ayeneranso kufufuza:

· Zinthu za Methoxy

· Kuchuluka kwa hydroxypropoxy

· Makhalidwe a kulemera kwa maselo

· Kukula kwa tinthu tating'onoting'ono

· Chinyezi

· Phulusa

· Kutentha kwa gel

· Kuchuluka kwa madzi m'thupi

· Khalidwe lotha ntchito

· Chiyero

· Njira yoyesera

Ma code amalonda mongaE, F, J, ndi Kzingatanthauzenso mabanja enieni a zinthu zomwe zimaperekedwa ndi ogulitsa ndi mitundu ina ya zinthu zomwe zimaperekedwa m'malo moyimira gulu la makampani onse.

Choncho, nthawi zonse yerekezerani mapepala athunthu aukadaulo.

Zolakwika Zodziwika Kwambiri Zosankha HPMC

1. Kusankha kukhuthala kwakukulu

Kukhuthala kwakukulu kungapangitse kuti madzi asamamatire kwambiri, asayende bwino, komanso kuti asavutike kupopa madzi.

2. Kuyerekeza kukhuthala popanda mikhalidwe yoyesera

Mtengo wa kukhuthala popanda kukhudzika ndi kutentha siwokwanira.

3. Kunyalanyaza mlingo

Kusintha mtundu wa viscosity nthawi zambiri kumafuna kukhathamiritsa kwa mlingo.

4. Kunyalanyaza zowonjezera zina

RDP, starch ether, PCE, zodzaza, simenti, ndi gypsum zonse zimatha kusintha magwiridwe antchito a HPMC.

5. Kusintha giredi ya wogulitsa m'modzi mwachindunji

Kukhuthala kofanana sikutsimikizira magwiridwe antchito ofanana.

Njira Yogwiritsira Ntchito Yosankhira HPMC

Njira yodalirika yosankhira ikhoza kutsatira njira izi:

Gawo 1:Fotokozani momwe ntchitoyo ikuyendera.

Gawo 2:Dziwani momwe ntchito ikufunira.

Gawo 3:Sankhani mitundu yotsika, yapakati, komanso yokwera.

Gawo 4:Yesani pa mlingo womwewo.

Gawo 5:Yerekezerani kusunga madzi, kuyenda, kugwira ntchito bwino, kutsika, ndi kumamatira.

Gawo 6:Konzani bwino mlingo wa woyenera bwino.

Gawo 7:Yesani ndi zipangizo zenizeni zopangira.

Gawo 8:Chitani kupanga koyambirira.

Gawo 9:Tsimikizirani kusinthasintha kwa batch-to-batch.

Njira imeneyi ndi yodalirika kwambiri kuposa kusankha HPMC kutengera nambala ya kukhuthala kwa katalogi kokha.

Mafunso Ofunsidwa Kawirikawiri

1. Kodi ndi kukhuthala kotani kwa HPMC komwe kuli bwino pa guluu wa matailosi?

HPMC yokhuthala pakati nthawi zambiri ndi malo abwino oyambira. Magiredi ozungulira 10,000–40,000 mPa·s amatha kufufuzidwa kutengera zomwe zikufunika pakupanga.

2. Kodi HPMC ya 100,000 mPa·s ndi yabwino kuposa 20,000 mPa·s?

Sizofunikira kwenikweni. Kukhuthala kwakukulu kumapereka kukhuthala kwamphamvu, koma mtundu wabwino kwambiri umadalira momwe umagwiritsidwira ntchito.

3. Kodi ndi kukhuthala kotani kwa HPMC komwe kuli koyenera kugwiritsa ntchito pa wall putty?

HPMC yokhuthala kwambiri mpaka yapakatikati ingaganizidwe ngati ikugwiritsidwa ntchito pa khoma, kutengera kusunga madzi, kusalala, kapangidwe kake ka zodzaza, ndi zofunikira pakugwiritsa ntchito.

4. Kodi HPMC ndi iti yoyenera matope odziyimira pawokha?

Magiredi otsika kapena apakati nthawi zambiri amafunika kuyesedwa chifukwa zinthu zodziyimira pawokha zimafuna kuyenda bwino komanso kulinganizidwa bwino.

5. Kodi kukhuthala kwambiri kwa madzi kumathandiza kuti madzi asungidwe bwino?

Zingatheke, koma kusunga madzi kumadaliranso ndi mlingo, kapangidwe ka polima, kusintha, kapangidwe kake ka mankhwala, ndi zina.

6. Kodi HPMC yokhala ndi kukhuthala kwa 20,000 ingalowe m'malo mwa HPMC yokhala ndi kukhuthala kwa 100,000?

Ikhoza kuyesedwa, koma mlingo ndi magwiridwe antchito a mankhwalawa ziyenera kukonzedwanso.

7. Kodi cP imatanthauza chiyani?

cP imatanthauza centipoise, unit of dynamic viscosity. Mwa manambala, 1 cP ndi pafupifupi yofanana ndi 1 mPa·s.

8. N’chifukwa chiyani zinthu ziwiri za HPMC zokhala ndi kukhuthala komweko zimagwira ntchito mosiyana?

Chifukwa kukhuthala sikufotokoza mokwanira kusintha, kapangidwe ka mamolekyu, kuchuluka kwa madzi m'thupi, kukula kwa tinthu tating'onoting'ono, kutentha kwa gel, kapena kuyera.

9. Kodi HPMC iyenera kugwiritsidwa ntchito mochuluka bwanji mu mortar?

Mlingo umadalira mtundu wa mankhwala. Kuyeza kwa labotale monga 0.1–0.5% ya mankhwala ouma kungagwiritsidwe ntchito ngati mtundu woyamba wa chitukuko, koma mlingo woyenera ukhoza kukhala kunja kwa mtundu uwu.

10. Kodi lamulo lofunika kwambiri posankha HPMC ndi liti?

Sankhani HPMC malinga ndi momwe ntchito ikuyendera—osati malinga ndi kuchuluka kwa kukhuthala kwakukulu.

Magiredi a kukhuthala kwa HPMC amapatsa ma formulator chida chofunikira chowongolera magwiridwe antchito a zipangizo zomangira ndi zinthu zina. Magiredi otsika kukhuthala nthawi zambiri amathandizira kuyenda bwino, pomwe magiredi apakati amapereka mgwirizano pakati pa kugwira ntchito bwino, kusunga madzi, ndi rheology. Magiredi okwera kukhuthala amapereka kukhuthala kwamphamvu, mgwirizano, ndi thupi.

Komabe,kukhuthala kwakukulu sikutanthauza kuti HPMC ndi yabwino yokhaKusankha kolondola kumadalira kugwiritsa ntchito, mlingo, kapangidwe ka mankhwala, momwe amagwirira ntchito, ndi zolinga zogwirira ntchito.

Pa zinthu zomangira, opanga ayenera kuwunika HPMC mu njira yonse yopangira ndikuyerekeza kusunga madzi, kugwira ntchito bwino, kuyenda bwino, kukana kutsika, nthawi yotseguka, kumamatira, momwe zinthu zilili, ndi mtengo wake.

Njira yabwino kwambiri yosankhira ndi iyi:

Kugwiritsa Ntchito → Kufunika kwa ntchito → Magiredi a kukhuthala kwa woyenerera → Kuyesa kwa labotale → Kukonza mlingo → Kupanga kwa woyeserera → Kusankha giredi yomaliza.

Potsatira njira iyi, opanga amatha kusankha mtundu wa HPMC womwe umapereka magwiridwe antchito nthawi zonse pomwe akupewa kukhuthala kosafunikira, mavuto okonza, ndi ndalama zowonjezera.