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-fatty acid ephezulu yevinyl ester ternary copolymer powder (VAC/E/VeoVa), ezi I-latex powders ezintathu ezinokuphinda zihlakazwe zilawula imarike yonke, ngakumbi i-vinyl acetate kunye ne-ethylene copolymer powder VAC/EE, ikwindawo ephambili kwibala lehlabathi kwaye imele iimpawu zobugcisa zomgubo wepolymer ophinda uhlakazwe. 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 lwepowder yerabha ihlanganiswe kwindawo yokugcina impahla kunye nakwibhubhoratri, 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. Nokuba akukho 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 kwi-anti-cracking mortar.
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-bonding interface iya kuba Ngenxa yokwakhiwa kwecavity, iya kubola ngokukhawuleza;
5. I-resin ye-rubber powder 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 ukudibanisa iibhodi ze-polystyrene, kungekhona iintsimbi ezi-vitrified kunye neebhodi ezingenamlilo.
Ixesha lokuposa: Jun-02-2023