Kwiminyaka yakutshanje, uninzi lwerabha yomgubo werabha, umgubo werabha onganyangekiyo wamanzi kunye nolunye umgubo werabha oxabiso likhulu kakhulu luye lwavela emarikeni ukuze luthathe indawo ye-VAE emulsion yemveli (vinyl acetate-ethylene copolymer), eyomisiweyo kwaye itshiswe. yenziwe ngomgubo werabha onokuphinda usetyenziswe.I-latex powder esasaziweyo, ngoko ke yintoni umahluko phakathi komgubo we-resin kunye nomgubo we-latex odityanisiweyo, ingaba i-resin powder ingathatha indawo yomgubo we-latex ophinda uhlawulwe?
Hlalutya ngokufutshane umahluko phakathi kwezi zimbini kwireferensi:
01. Umgubo welatex ophinda uhlakazwe
Okwangoku, i-latex powders ekwazi ukuphinda isetyenziswe esetyenziswa kakhulu kwihlabathi zezi: i-vinyl acetate kunye ne-ethylene copolymer powder (VAC / E), i-ethylene, i-vinyl chloride kunye ne-vinyl laurate ternary copolymer powder (E / VC / VL), i-acetic acid iVinyl ester, i-ethylene. kunye ne-acid ephezulu enamafutha e-vinyl ester ternary copolymer powder (VAC/E/VeoVa), ezi zintathu zomgubo zelatex ezidispersible zilawula yonke imarike, ngakumbi ivinyl acetate kunye ne-ethylene copolymer powder VAC/EE, ikwindawo ephambili kwibala lehlabathi kwaye imele ubugcisa. iimpawu zepolymer powder enokuphinda ihlakazwe.Isesona sisombululo sihle sobuchwephesha ngokwamava obugcisa kunye neepolymers ezisetyenziswa kuhlengahlengiso lodaka:
1. Yenye yeepolima ezisetyenziswa kakhulu ehlabathini;
2. Amava esicelo kwintsimi yolwakhiwo ngowona mkhulu;
3. Iyakwazi ukuhlangabezana neempawu ze-rheological ezifunwa ngudaka (oko kukuthi, ukwakhiwa okufunekayo);
4. I-resin ye-polymer kunye namanye ama-monomers aneempawu ze-organic volatile matter (VOC) kunye negesi ephantsi enomsindo;
5. Ineempawu zokumelana ne-UV ebalaseleyo, ukumelana nobushushu obuhle kunye nokuzinza kwexesha elide;
6. Ukuchasa okuphezulu kwi-saponification;
7. Inolona luhlu lubanzi lotshintsho lweglasi (Tg);
8. Inobambiso olugqwesileyo olubanzi, ukuguquguquka kunye neempawu zoomatshini;
9. Yiba nelona xesha lide kwimveliso yeekhemikhali zendlela yokuvelisa iimveliso ezisemgangathweni ezizinzile kunye namava ekugcineni uzinzo lokugcina;
10. Kulula kakhulu ukudibanisa ne-colloid yokukhusela (i-polyvinyl alcohol) kunye nokusebenza okuphezulu.
02. I-resin powder
Uninzi lwe "resin" yerabha powder kwimarike iqulethe i-chemical substance DBP.Unokujonga ubungozi bale khemikhali, echaphazela umsebenzi wesondo wesilisa.Isixa esikhulu solu hlobo lwe-rubber powder lufakwe kwindawo yokugcina impahla kunye nebhubhoratri, kwaye inokuguquka okuthile.Imakethi yaseBeijing, edume ngobuninzi bayo "yomgubo werabha", ngoku inamagama ahlukeneyo "omgubo werabha" ofakwe kwi-solvents: umgubo werabha onganyangekiyo wamanzi, umgubo werabha we-resin, njl. Iimpawu eziqhelekileyo:
1. I-Dispersibility engalunganga, abanye baziva bemanzi, abanye baziva be-flocculent (kufuneka ibe yimpahla ene-porous efana ne-sepiolite) kwaye ezinye zimhlophe kwaye zome kancinci kodwa zisanuka kakubi;
2. Ivumba elibi kakhulu;
3. Eminye imibala yongezwe, kwaye imibala evelayo ngoku imhlophe, tyheli, greyi, mnyama, bomvu, njl.;
4. Isixa sokongeza sincinci kakhulu, kwaye inani lokongezwa kwetoni enye ngu-5-12 kg;
5. Amandla okuqala alungile ngokumangalisayo.I-samente ayinayo amandla kwiintsuku ezintathu, kwaye ibhodi yokugquma iyakwazi ukugqwala kwaye ibambelele;
6. Kuthiwa ibhodi ye-XPS ayifuni i-agent ye-interface;
Ngokusebenzisa iisampulu ezifunyenweyo ukuza kuthi ga ngoku, kunokugqitywa ukuba yi-resin esekelwe kwi-solvent ekhangiswa ngezixhobo ezikhanyayo, kodwa umthengisi ufuna ukuphepha ngamabomu igama elithi "i-solvent", ngoko kuthiwa "i-rubber powder".
ukusilela:
1. Ukumelana nemozulu ye-solvent yingxaki enkulu.Elangeni, iya kuba ngumphunga ngexesha elifutshane.Nangona kungekho elangeni, i-bonding interface iya kubola ngokukhawuleza ngenxa yokwakhiwa kwecavity;
2. Ukuchasana nokuguga, izinyibilikisi azikwazi ukumelana nobushushu, wonke umntu uyayazi le nto;
3. Ekubeni i-bonding mechanism kukuchitha i-interface yebhodi ye-insulation, ngokuchaseneyo, iphinda itshabalalise i-bonding interface.Ukuba kukho ingxaki kule ngxaki kwinqanaba elilandelayo, impembelelo iya kuba yingozi;
4. Akukho mzekelo wokusetyenziswa kumazwe angaphandle.Ngamava ekhemikhali aqolileyo asisiseko aphesheya, akunakwenzeka ukuba ungafumani le mpahla.
I-latex powder enokuchithwa kwakhona
1. Imveliso ye-latex ye-powder powder ehlaziywayo yi-powder-soluble redispersible powder, eyi-copolymer ye-ethylene kunye ne-vinyl acetate, kunye ne-polyvinyl alcohol njenge-colloid ekhuselayo.
2. I-VAE ye-latex i-powder edispersible ineempawu zokwenza ifilimu, isisombululo se-50% samanzi sibumba i-emulsion, kwaye senze ifilimu efana neplastiki emva kokufakwa kwiglasi kwiiyure ezingama-24.
3. Ifilimu eyenziweyo inokuguquguquka okuthile kunye nokuchasana kwamanzi.Inokufikelela kumgangatho wesizwe.
4. I-latex powder ye-redispersible inokusebenza okuphezulu: inamandla okubambisana okuphezulu, ukusebenza okuyingqayizivele kunye nokusebenza okugqwesileyo kwamanzi, amandla okubambisana okulungileyo, i-endows mortar enokumelana okugqwesileyo kwe-alkali, kwaye inokuphucula i-adhesion kunye namandla aguquguqukayo odaka Ukongeza kwi-plastiki, ukuxhathisa ukunxiba. kunye nokwakhiwa, inokuguquguquka okunamandla kudaka oluchasene nokuqhekeka.
resin powder
1. Umgubo werabha we-resin luhlobo olutsha lwesilungisi kwiimveliso ezifana nerabha, i-resin, i-polymer ephezulu ye-molecular, kunye nomgubo werabha ocolekileyo;
2. I-resin ye-rubber powder inokuqina okuqhelekileyo, ukunyanzeliswa kokugqoka, ukusabalalisa okungahambi kakuhle, abanye baziva be-flocculent (kufuneka ibe yinto ene-porous efana ne-sepiolite), kwaye kukho i-powders emhlophe (kodwa ibe nephunga elimnandi elifana ne-kerosene);
3. Eminye i-resin powders i-corrosion kwibhodi, kwaye ukukhutshwa kwamanzi akufanelekanga.
4. Ukumelana nemozulu kunye nokuchasana kwamanzi kwi-resin rubber powder kuphantsi kunezo ze-latex powder.Ukumelana nemozulu yingxaki enkulu.Elangeni, iya kuba ngumphunga ngexesha elifutshane.Nangona kungekho elangeni, i-interface yokudibanisa iya kuba Ngenxa yokwakhiwa kombhobho, iya kubola ngokukhawuleza;
5. I-resin powder yerabha ayinakho ukubumba, makungabikho ukuguquguquka.Ngokwemigangatho yokuvavanya udaka lwangaphandle lwe-insulation wall, kuphela umlinganiselo womonakalo webhodi ye-polystyrene udibana nomgangatho.Ezinye izalathisi azikho kumgangatho;
6. I-resin powder yerabha ingasetyenziselwa kuphela ukubopha iibhodi ze-polystyrene, kungekhona amaso aqiniweyo kunye neebhodi ezingenamlilo.
Ixesha lokuposa: Jun-02-2023