Momwe Mungakulitsire Ubwino wa Mapepala Omatira ndi Mtondo Pogwiritsa Ntchito Ufa wa PVA

Ufa wa PVA umagwira ntchito ngati cholumikizira champhamvu. Umawonjezera mphamvu ya guluu, kusinthasintha, komanso kukana madzi kwa zosakaniza zopangidwa ndi simenti. Kuwonjezera ufa wa PVA kumapanga ukonde wa polymer wochepa kwambiri. Ufawu umalumikizana ndi guluu komanso substrate. Umathetsa zomwe zimayambitsa kulephera kofala: kusagwira bwino ntchito, kufumbitsa pamwamba, kusweka. Wogulitsa wodalirika waku China PVA ufa wa polyvinyl alcohol wa Adhesive / Mortar umapereka mtundu womwe mukufuna. Gwiritsani ntchito ufa wa PVA moyenera kuti mupeze zotsatira zokhazikika komanso zapamwamba.

Mfundo Zofunika Kwambiri

· Ufa wa PVAimapanga ukonde wa polima womwe umalumikiza tinthu ta simenti mwamphamvu.
· Zimaletsa fumbi pamwamba ndipo zimachepetsa ming'alu ya matope.
· Onjezani ufa wa PVA wa 0.3% mpaka 0.5% ku chisakanizo chouma kuti mupeze zotsatira zabwino.

Kodi ufa wa PVA ndi chiyani ndipo umagwira ntchito bwanji?

Ufa wa PVA, kapena polyvinyl alcohol, ndi polima yopangidwa ndi madzi yosungunuka. Mudzaipeza muzinthu zambiri zomangira. Ufa woyera wabwinowu umasungunuka m'madzi kuti upange yankho lomveka bwino komanso losinthasintha. Opanga amapanga mumitundu yosiyanasiyana. Mtundu uliwonse umapereka mawonekedwe osiyanasiyana kuti ugwiritsidwe ntchito mwanjira inayake. Mutha kusankha mtundu womwe umasungunuka kutentha kwa chipinda kapena womwe umafunikira madzi otentha opitilira 95°C. Kusinthasintha kumeneku kumapangitsa ufa wa PVA kukhala wofunika m'mafakitale ambiri.

Ubwino Waukulu wa Ufa wa PVA

Ufa wa PVA uli ndi makhalidwe angapo odabwitsa. Umapanga mafilimu olimba, owonekera bwino okhala ndi mphamvu zambiri zamakaniko. Mafilimuwa amalimbana ndi zosungunulira, mafuta, ndi kusweka. Polima imagwiranso ntchito ngati emulsifier yabwino kwambiri komanso chokhazikika. Mudzayamikiranso kukhazikika kwake kwa kutentha. PVA imakhalabe yokhazikika pansi pa 40°C ndipo imafewa kokha kutentha kwambiri. Imawola pamwamba pa 220°C, zomwe zimapangitsa kuti ikhale yotetezeka pa ntchito zambiri zomanga.

Kukhuthala kwa ma PVA solutions kumasintha mosayembekezereka. Mutha kuwongolera izi kudzera mu kuchuluka ndi kutentha. Tebulo ili pansipa likuwonetsa momwe zosinthazi zimakhudzira yankho:

Njira Yogwirira Ntchito mu Mortar ndi Adhesive Mixes

Mukawonjezera ufa wa PVA ku matope osakaniza, umasungunuka mukasakaniza. Maunyolo a polima amafalikira m'madzi onse. Pamene matopewo akuchira, madzi amasanduka nthunzi. Maunyolo a PVA amapanga filimu yopitilira. Filimuyi imapanga ukonde waung'ono womwe umazungulira tinthu ta simenti ndi ma aggregates. Ukondewu umagwira ntchito ngati mlatho. Umalumikiza zinthu zosapangidwa ndi organic wina ndi mnzake komanso pamwamba pa nthaka.

Netiweki ya polima iyi imakulitsa kwambiri kumatirira. Imadzaza ma pores ang'onoang'ono ndi zolakwika pa substrate. Filimuyi imawonjezeranso kusinthasintha mkati mwa matope olimba. Mumasunga bwino madzi mukamawathira. Izi zimaletsa kuuma msanga ndipo zimachepetsa kupsinjika. Zotsatira zake zimakhala zolimba komanso zolimba. Kuti mukhale ndi mtundu wabwino, muyenera kupeza kuchokera ku China Supplier PVA powder polyvinyl alcohol yodalirika ya Adhesive / Mortar. Chogulitsa chawo chimatsimikizira magwiridwe antchito odziwikiratu mu gulu lililonse.

Kuthetsa Mavuto Okhudzana ndi Zomatira ndi Mtondo ndi Ufa wa PVA

Kukonza Mphamvu Yosauka ya Bond ndi Delamination

Kulimba kwa bond kochepa kumapangitsa kuti matailosi atuluke ndipo ma render asiyane ndi khoma. Mumaona vutoli nthawi zambiri mukamagwiritsa ntchito zinthu zokhuthala kapena zosalala. Guluuyo sangathe kugwira bwino pamwamba pake.Ufa wa PVAAmathetsa vutoli mwachindunji. Amapanga netiweki ya polima mkati mwa chisakanizocho. Netiweki iyi imalumikiza mpata pakati pa guluu ndi substrate. Imadzaza ma pores ang'onoang'ono ndikupanga kulumikizana kwamphamvu kwamakina.

Mukhoza kuyeza kusintha kwa mphamvu ya bond pogwiritsa ntchito mayeso osavuta. Kuyesa koyerekeza mwachindunji pakati pa guluu wa matailosi ofotokozera ndi mtundu wosinthidwa kukuwonetsa zotsatira zomveka bwino. Guluu wofotokozera uli ndi 0.3% HPMC. Mtundu wosinthidwa uli ndi 0.15% HPMC kuphatikiza 0.5% PVA 17-88. Mphamvu yomatira youma pambuyo pa masiku 28 imawonjezeka kuchoka pa 1.2 MPa kufika pa 1.5 MPa. Kumeneko ndi kusintha kwa 25%. Mphamvu yowonjezerayi imaletsa kugawanika kwa matailosi ndipo imasunga matailosi anu otetezeka kwa zaka zambiri. Kuti mupeze zotsatirazi nthawi zonse, muyenera gwero lodalirika. Sankhani Wogulitsa Wodalirika wa PVA ufa wa polyvinyl wa China wa Adhesive / Mortar. Izi zimatsimikizira kuti magulu anu onse amagwira ntchito mofanana.

Kupewa Kutulutsa Fumbi Pamwamba ndi Kuyika Choko

Kupukuta fumbi pamwamba kumapangitsa kuti matope omalizidwa azioneka ofooka komanso osagwira ntchito. Mumayendetsa dzanja lanu pamwamba ndikupeza ufa wosasunthika. Vutoli limachitika pamene simenti ya simenti ilibe mphamvu zokwanira zomangirira. Tinthu tating'onoting'ono pamwamba sitimamatirana. Ufa wa PVA umaletsa vutoli. Umapanga filimu yolimba pamene matopewo akuchira. Filimuyi imazungulira tinthu ta pamwamba ndikutseka pamalo pake. Filimuyi imawonjezeranso kuchuluka kwa pamwamba. Mumapeza kumaliza kosalala, kolimba komwe kumaletsa kusweka. Filimu ya polima imakhalabe yolimba ngakhale matopewo atauma kwathunthu. Pamwamba panu pomaliza sipadzachotsedwa fumbi kapena choko pakapita nthawi.

Kuchepetsa Ming'alu Yochepa ndi Kukonza Kusinthasintha

Ming'alu imachepa ikayamba kuoneka ngati matope ataya madzi mwachangu kwambiri. Simenti imachepa, ndipo kupsinjika kumapangitsa kuti ming'alu ipangike. Vutoli limafooketsa kapangidwe kake ndipo limalola madzi kulowa. Ufa wa PVA umakuthandizani kupewa izi. Umathandiza kusunga madzi nthawi yowuma. Madzi amakhalabe onyowa kwa nthawi yayitali, zomwe zimachepetsa chiopsezo chouma mwachangu. Filimu ya polima imawonjezeranso kusinthasintha kwa matrix yolimba. Madzi osinthasintha amatha kuyenda ndi substrate. Amatha kuthana ndi kusintha pang'ono ndi kusintha kwa kutentha popanda kusweka. Mumapeza chinthu cholekerera chomwe chimagwira ntchito bwino m'mikhalidwe yovuta.

Kulimbitsa Kukana kwa Madzi ndi Kulimba

Madzi amawononga matope wamba pakapita nthawi. Kuzizira ndi kusungunuka kumayambitsa kuwonongeka kwakukulu. Madzi amalowa mu matope, amaundana, amafutukuka, ndikuswa kapangidwe kake. Muyenera kuteteza ntchito yanu ku kuukira kwamtunduwu. Ufa wa PVA umapangitsa matope anu kukhala osalowa madzi. Filimu ya polima imagwira ntchito ngati chotchinga. Imachepetsa kuchuluka kwa madzi omwe angalowe mu matope. Chitetezochi chimasunga matope olimba nthawi zambiri.

Gome ili m'munsimu likuwonetsa kusiyana kwakukulu pakati pa magwiridwe antchito a kuzizira ndi kusungunuka:

Mtondo wosinthidwa ndi zowonjezera za polima monga PVA umapirira ma cycle 300 popanda kuwonongeka. Mtondo wamba umalephera pambuyo pa ma cycle 50 mpaka 100 okha. Mutha kuwona kusintha kwakukulu pakulimba. Izi zikutanthauza kuti ntchito yanu imatenga nthawi yayitali m'malo ozizira. Mumachepetsanso chiopsezo chokonza zinthu zodula pambuyo pake. Kuti mupeze zotsatira zabwino, funani zinthu zanu kuchokera kwa China Supplier PVA powder polyvinyl alcohol yodalirika ya Adhesive / Mortar. Ubwino wa ufa wa PVA umakhudza mwachindunji kulimba komaliza kwa chosakaniza chanu.

Malangizo Othandiza Ogwiritsira Ntchito Ufa wa PVA

Kupeza Chiŵerengero Chosakaniza Bwino

Chiŵerengero cholondola chaUfa wa PVAKuti muumitse mix, ndiye kuti mudzapeza zotsatira zanu zomaliza. Muyenera kusintha kuchuluka kwa mix kutengera momwe mwagwiritsira ntchito. Pa zomatira za matailosi, onjezani ufa wa PVA wa 0.3% mpaka 0.5% potengera kulemera kwa mix yonse youma. Mtundu uwu umakupatsani mgwirizano wabwino kwambiri womamatira ndi kusinthasintha. Pa zolembera ndi ma plaster, gwiritsani ntchito 0.2% mpaka 0.4%. Pa ma grout ndi ma mortar okonza, onjezani kuchuluka kwa mix kufika 0.5% mpaka 1.0%. Ma ratios apamwamba amathandiza kuti madzi asagwedezeke komanso kusinthasintha. PVA yochuluka kwambiri ingachedwetse nthawi yoyika. Nthawi zonse yesani kaye pang'ono. Yesani ufa wa PVA ndi sikelo yolondola. Musaganize kuchuluka kwake. Ma ratios okhazikika amatanthauza zotsatira zofanana pa ntchito iliyonse.

Buku Lotsogolera ndi Kusakaniza ndi Kugwiritsa Ntchito Pang'onopang'ono

Tsatirani njira izi kuti mukonze matope kapena guluu wosinthidwa wa PVA wapamwamba kwambiri:

1. Yambani ndi chisakanizo chanu chouma. Sakanizani simenti, mchenga, ndi zinthu zina mu chidebe choyera.

2. Onjezani ufa wa PVA ku zigawo zouma. Sakanizani bwino kuti ufawo ugawidwe mofanana mu chisakanizo chonse.

3. Yesani madzi ofunikira. Kuchuluka kwake kumadalira momwe mwagwiritsira ntchito komanso mtundu wa PVA womwe mwasankha.

4. Onjezani madzi pang'onopang'ono ku chisakanizo chouma. Sakanizani mosalekeza ndi makina osakanizira kapena ndi manja.

5. Sakanizani kwa mphindi zitatu mpaka zisanu mpaka mutapeza phala losalala komanso lofanana. Lolani kuti chisakanizocho chipumule kwa mphindi ziwiri.

6. Sakanizaninso kwa mphindi imodzi. Chosakaniza chanu tsopano chakonzeka kugwiritsidwa ntchito.

7. Ikani chisakanizocho mkati mwa nthawi yake yogwira ntchito. Zosakaniza zosinthidwa ndi PVA zimakhala ndi moyo wofanana ndi zosakaniza wamba.

8. Tsukani zida zanu ndi madzi nthawi yomweyo mukatha kugwiritsa ntchito. Filimu youma ya PVA imakhala yovuta kuchotsa.

Malangizo Ofunika Kwambiri ndi Zolakwa Zofala Zoyenera Kupewa

Zolakwitsa zingapo zingawononge chosakaniza chanu chosinthidwa ndi PVA. Pewani zolakwika izi zofala kuti mupeze zotsatira zabwino:

· Musayambe kuyika ufa wa PVA m'madzi kaye. Izi zimayambitsa kukhuthala. Nthawi zonse sakanizani ufawo ndi zosakaniza zouma kaye.
· Musagwiritse ntchito madzi ambiri. Madzi ochulukirapo amachepetsa mphamvu ya polymer. Izi zimachepetsa mphamvu yomaliza komanso kukana madzi kwa matope anu.
· Pewani kusakaniza pamalo otentha kwambiri kapena ozizira kwambiri. Kutentha kwambiri kumakhudza kusungunuka ndi kupangika kwa filimu ya polima ya PVA.
· Musasakanize PVA ndi ma oxidizer amphamvu kapena mankhwala owononga. Zinthuzi zimatha kuwononga polima ndikuwononga magwiridwe ake.
· Sungani ufa wa PVA moyenera. Chinyezi chambiri chimapangitsa ufawo kuyamwa chinyezi. Izi zimapangitsa kuti ziphuphu zolimba, kusungunuka pang'ono, komanso mphamvu yomatira ikhale yochepa. Muyenera kusunga ufa wa PVA pamalo ozizira komanso ouma pakati pa 5°C ndi 30°C. Sungani phukusi lotsekedwa nthawi zonse. Gwiritsani ntchito mankhwala oyeretsera kuti mutetezeke kwambiri. Ngati muwona ziphuphu zolimba, chikasu, kapena fungo losazolowereka, PVA yayamba kuwonongeka. Musagwiritse ntchito.

Njira yaukadauloyi ikufotokoza chifukwa chake kusungirako kuli kofunika. Chinyezi chochuluka chimapangitsa kuti PVA itenge chinyezi, zomwe zimapangitsa kuti kutupa ndi kutayika kwa mphamvu za makina. Chinyezi chochepa chimauma zinthuzo, zomwe zimachepetsa kusinthasintha ndi umphumphu. Kutentha kwambiri kumathandizira kuwonongeka kwa polima. Kutentha kotsika kumayambitsa kusweka. Malo olamulidwa komanso okhazikika amasunga nthawi yosungira ufa wanu wa PVA komanso magwiridwe antchito ake.

Kupeza Ufa Wapamwamba wa PVA kuchokera kwa Wogulitsa Wachi China wa PVA wa polyvinyl mowa wa Adhesive / Mortar

Ubwino wa ufa wanu wa PVA umasankha momwe matope anu amagwirira ntchito. Mukufuna wogulitsa wodalirika. Wogulitsa wodalirika waku China PVA ufa wa polyvinyl alcohol wa Adhesive / Mortar amapereka mtundu wokhazikika komanso wokhazikika wa ntchito zanu.

Yang'anani ogulitsa omwe ali ndi ziphaso zofunika kwambiri. Ziphasozi zikusonyeza kuti wopanga amatsatira miyezo yokhwima yaubwino ndi chitetezo:

Mabizinesi ayenera kutsatira malamulo a REACH akamatumiza PVA ku EU. Malamulowa amatsimikizira kuti mankhwalawa ndi otetezeka ku thanzi la anthu komanso chilengedwe. Chilolezo cha FDA n'chofunikira pamsika waku US. Chimatsimikizira kuti mankhwalawa akukwaniritsa miyezo yachitetezo ndi magwiridwe antchito.

Wogulitsa wabwino wa ku China wa PVA powder polyvinyl alcohol wa Adhesive / Mortar amatsatiranso njira zoyenera zosungira ndi kugwirira ntchito. Amasunga ufawo pamalo olamulidwa. Amagwiritsa ntchito ma CD otsekedwa okhala ndi matumba a mapepala ambiri ndi ma PE liners. Amagwiritsa ntchito kasamalidwe ka zinthu za FIFO kuti atsimikizire kuti ndi atsopano. Mukalandira katundu wanu, yang'anani ma CDwo kuti awone ngati awonongeka. Sungani matumbawo m'nyumba yosungiramo zinthu yozizira komanso youma. Asungeni kutali ndi dzuwa lachindunji, magwero otentha, ndi zinthu zina zodetsa. Chisamalirochi chimasunga nthawi yosungiramo zinthu komanso momwe ufa wa PVA umagwirira ntchito.

Ufa wa PVA umasintha zosakaniza zofooka, zosweka kukhala zomatira zolimba komanso zolimba. Mumapeza mgwirizano wabwino, kusweka kochepa, komanso kukana madzi bwino. Kusunga ndalama kumafika pa 20% pa zomatira ndi 22% pa zomatira, ndi kupambana kwa magwiridwe antchito kwa 15% ndi 18%. Gwiritsani ntchito malangizo awa lero. Sankhani Wogulitsa Wodalirika wa PVA wa polyvinyl mowa waku China wa Adhesive / Mortar.

FAQ

Kodi ndiyenera kuwonjezera ufa wa PVA wochuluka bwanji ku matope anga osakaniza?

Onjezani 0.3% ku 0.5%Ufa wa PVApotengera kulemera kwa chisakanizo chonse chouma cha zomatira za matailosi. Sinthani kuchuluka kwake kutengera momwe mwagwiritsira ntchito.

Kodi ndingasakanize ufa wa PVA mwachindunji ndi madzi?

Ayi. Nthawi zonse sakanizani ufa wa PVA ndi zosakaniza zanu zouma poyamba. Kuwuyika m'madzi kumayambitsa kuuma ndipo kumachepetsa mphamvu yomaliza yomangira.

Kodi chomangira chosinthidwa ndi PVA chimakhala chogwira ntchito kwa nthawi yayitali bwanji?

Muyenera kugwiritsa ntchito chosakanizacho mkati mwa mphindi 30 mpaka 60 mutachikonza. Nthawi ino ikugwirizana ndi nthawi yomwe matope wamba amakhala mumphika.