1. Kodi zosakaniza mu khoma putty formula?
Mapangidwe a khoma la putty amaphatikizapo zomatira, ma fillers ndi zowonjezera.
Exterior wall putty recipe reference
Kulemera (kg) Zinthu
300 simenti yadongo yoyera kapena imvi 42.5
220 silika ufa (160-200 mauna)
450 ufa wolemera wa calcium (0.045mm)
6-10 Redispersible polima ufa (RDP) ET3080
4.5-5 HPMC MP45000 kapena HEMC ME45000
3 matabwa oyera
1 polypropylene fiber (kukhuthala 3 mm)
Wall putty amaphatikiza mkati mwa khoma putty ndi kunja khoma putty. Ntchito yake yayikulu ndikukonza kusagwirizana ndikupangitsa khoma kukhala losalala.
1.1 Zomatira
Zomangira pakhoma la putty formula ndi simenti, ufa wa polima wowoneka bwino kwambiri, ndi laimu wa slaked. Simenti imagwiritsidwa ntchito kwambiri pomanga. Ndiwotchuka chifukwa chomamatira bwino, kuuma kwakukulu komanso kutsika mtengo. Koma kulimba kwamphamvu ndi kukana kwa crack ndizosauka. Powder Powder ndi ufa wopangidwanso ndi polima. Itha kugwira ntchito yolumikizana pamapangidwe a putty.
1.2 Kudzaza
Zodzaza mu khoma la putty formula zimatchula heavy calcium carbonate, Shuangfei powder, gray calcium powder, and talc powder. Ubwino wa kugaya calcium carbonate ndi pafupifupi 200 mesh. Osagwiritsa ntchito ma fillers omwe ali ndi granular pakhoma lanu la putty formula. Izi zimabweretsa kutsika kofanana. Fineness ndi chinthu chofunika kwambiri pa khoma putty formulations. Dongo la Bentonite nthawi zina limawonjezeredwa kuti liwonjezeke.
1.3 Zida zothandizira
Zowonjezera mumapangidwe a khoma la putty zimaphatikizapo ma cellulose ethers ndi VAE redispersible latex powder. Zowonjezera zamtundu uwu zimagwira ntchito ya thickening ndi kusunga madzi. Ma cellulose ethers akulu ndi HPMC, MHEC, ndi CMC. Kuchuluka kwa ether ya cellulose yomwe imagwiritsidwa ntchito ndi yofunika kuti ipangidwe bwino.
Hydroxypropylmethylcellulose
Mu kapangidwe ka HPMC, mankhwala amodzi ndi hydroxypropionyl. Kukwera kwa gulu la hydroxypropoxy, kumapangitsa kuti madzi asungidwe bwino. Mankhwala ena ndi methoxy. Kutentha kwa gel osakaniza kumadalira. M'madera otentha, ogwira ntchito amamvetsera kwambiri chizindikiro ichi. Chifukwa ngati kutentha kozungulira kupitilira kutentha kwa gel osakaniza a HPMC, cellulose imatuluka m'madzi ndikutaya kusungirako madzi. Kwa MHEC, kutentha kwa gel ndikokwera kuposa kwa HPMC. Choncho, MHEC ili ndi madzi osungira bwino.
HPMC sichimakhudzidwa ndi zochitika za mankhwala. Ili ndi madzi osungira bwino, makulidwe ndi ntchito.
1. Kusasinthasintha: Ma cellulose ether amatha kukhuthala ndikusunga yunifolomu ya yankho mmwamba ndi pansi. Amapereka khoma la putty bwino kukana.
2. Kusunga madzi: Chepetsani liwiro lowuma la putty powder. Ndipo ndizopindulitsa pamachitidwe amankhwala pakati pa imvi calcium ndi madzi.
3. Kuchita bwino: cellulose ether ili ndi ntchito yopaka mafuta. Izi zitha kupatsa khoma la putty ntchito yabwino.
Redispersible polima ufa amatanthauza VAE RDP. Mlingo wake ndi wochepa. Ogwira ntchito ena sangawonjezere ku khoma la putty formula kuti apulumutse ndalama. RDP imatha kupanga khoma la putty kukhala lopepuka, lopanda madzi komanso losinthika. Kuphatikizika kwa ufa wa polima wopangidwanso kumafulumizitsa ntchito ndikuwongolera kusalala.
rdp2 1
Nthawi zina, maphikidwe a khoma amakhala ndi ulusi, monga ulusi wa polypropylene kapena ulusi wamatabwa. PP fiber konkire ndi njira yothandiza kupewa ming'alu.
polypropylene fiber konkriti
Malangizo: 1. Ngakhale cellulose ether ndi chinthu chofunika kwambiri mu putty powder formula. Komabe, mlingo wa cellulose ether uyeneranso kuyendetsedwa mosamalitsa. Izi ndichifukwa choti ma cellulose ethers, monga HPMC, amatha kupangidwa emulsified. Ngati agwiritsidwa ntchito mopitirira muyeso, ma cellulose ether amatha kutulutsa mpweya ndikulowetsa mpweya. Panthawi imeneyi, putty amatenga madzi ambiri ndi mpweya. Madzi akasungunuka, wosanjikiza wa putty amasiya malo akulu. Izi pamapeto pake zidzabweretsa kuchepa kwa mphamvu.
2. Pokhapokha ufa wa rabara umawonjezeredwa ku khoma la putty, ndipo palibe cellulose yomwe imawonjezeredwa, zomwe zidzachititsa kuti putty akhale ufa.
2. Mitundu ya khoma putty
HPMC wall putty yomwe imagwiritsidwa ntchito popanga khoma imaphatikizanso mkati mwakhoma putty ndi kunja kwa khoma putty. Kunja kwa khoma putty kudzakhudzidwa ndi mphepo, mchenga, ndi nyengo yotentha. Chifukwa chake, imakhala ndi ma polima ambiri ndipo imakhala ndi mphamvu zambiri. Koma chiwerengero chake cha chilengedwe ndi chochepa. Komabe, zizindikiro zonse za mkati mwa khoma putty ndi bwino. Mkati mwa khoma putty formula ilibe zinthu zovulaza.
Mapangidwe a khoma la khoma makamaka amaphatikizapo gypsum-based wall putty ndi simenti-based wall putty. Mafomuwa amaphatikiza mosavuta ndi maziko. Pali njira yopangira khoma la putty motere:
2.1 Njira yopangira simenti yopangidwa ndi simenti yoyera
White simenti-based wall putty ingagwiritsidwe ntchito pamakoma amkati ndi akunja. Makoma a imvi ndi konkire amatha kugwiritsa ntchito. Putty wamtunduwu amagwiritsa ntchito simenti yoyera ngati chinthu chachikulu. Zodzaza ndi zowonjezera zimawonjezeredwa. Pambuyo kuyanika, palibe fungo losasangalatsa lidzapangidwa. Fomula yopangidwa ndi simenti imapereka mphamvu zambiri komanso kuuma.
2.2 Acrylic wall putty formula
Acrylic putty ndi zomatira za acrylic zopangidwa kuchokera kuzinthu zapadera. Ili ndi kusinthasintha ngati batala wa peanut. Itha kugwiritsidwa ntchito kudzaza ming'alu ndi mabowo pamakoma
Kodi pali kusiyana kotani pakati pa putty-based wall putty ndi acrylic wall putty?
Acrylic putty ndi yoyenera pamakoma amkati, koma amawononga ndalama zambiri kuposa simenti. Kukana kwake kwa alkali ndi kuyera kwake kulinso bwino kuposa putty yochokera ku simenti. Kuphatikiza apo, imauma mwachangu kuposa simenti yoyera, motero ntchitoyo iyenera kuchitika mwachangu.
2.3 Flexible wall putty formula
Flexible putty imakhala ndi simenti yapamwamba kwambiri, zodzaza, ma polima opangira ndi zowonjezera. Ndipo kuwala kwa dzuwa sikudzakhudza kumanga putty. Flexible putty imakhala ndi mphamvu zomangirira kwambiri, yosalala komanso yosalala pamwamba, ndipo imateteza madzi komanso chinyezi.
Powombetsa mkota
Posankha njira yoyenera ya putty, nthawi zambiri zimakhala zosatheka kuyankhula za formula yoyambira. Njirayi iyenera kuphatikizidwa ndi chilengedwe, monga mawonekedwe a chigawo, mtundu wa zinthu zopangira… Njira yabwino kwambiri ya putty ndikuyika putty kutengera momwe zinthu ziliri. Sinthani fomula ya putty kuti mukwaniritse zokopa.
Nthawi yotumiza: Sep-13-2023