Kwiminyaka yakutshanje, kuye kwavela umgubo werabha we-resin omninzi, umgubo werabha oqinileyo omelana namanzi kunye neminye i-rubber powder engabizi kakhulu emarikeni ukuze kuthathelwe indawo i-VAE emulsion yendabuko (i-vinyl acetate-ethylene copolymer), eyomiswa ngokutshizwa kwaye yenziwe ngomgubo werabha onokuphinda usetyenziswe. Umgubo we-latex osasazekileyo, ngoko ke yintoni umahluko phakathi komgubo we-resin kunye nomgubo we-latex ophinda usetyenziswe, ngaba umgubo we-resin ungawuthatha indawo yomgubo we-latex ophinda usetyenziswe?
Hlalutya ngokufutshane umahluko phakathi kwezi zimbini ukuze ufumane isalathiso:
01. Umgubo welatex ophinda uchitheke
Okwangoku, iipowder zelatex eziphinda zichithwe ezisetyenziswa kakhulu kwihlabathi liphela zezi: ivinyl 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 I-Vinyl ester, i-ethylene kunye ne-higher fatty acid vinyl ester ternary copolymer powder (VAC/E/VeoVa), ezi powders zintathu zelatex eziphinda zichithwe zilawula imarike yonke, ngakumbi i-vinyl acetate kunye ne-ethylene copolymer powder VAC/EE, ithatha indawo ephambili kwihlabathi liphela kwaye imele iimpawu zobugcisa zepowder yepolymer ephinda ichithwe. Isesona sisombululo sobuchwephesha silungileyo ngokweemava zobugcisa ngeepolymers ezisetyenziswa ekuguqulweni kwemortar:
1. Yenye yeepolima ezisetyenziswa kakhulu emhlabeni;
2. Amava okusebenzisa kwicandelo lokwakha ngawona abaluleke kakhulu;
3. Ingahlangabezana neempawu ze-rheological ezifunekayo kwi-mortar (oko kukuthi, ukwakhiwa okufunekayo);
4. I-resin ye-polymer kunye nezinye ii-monomers ineempawu ze-low organic volatile matter (VOC) kunye negesi ecaphukisayo ephantsi;
5. Ineempawu zokuxhathisa i-UV egqwesileyo, ukumelana nobushushu okuhle kunye nokuzinza kwexesha elide;
6. Ukumelana okuphezulu ne-saponification;
7. Inoluhlu olubanzi kakhulu lobushushu beglasi yotshintsho (Tg);
8. Ine-bonding ebanzi, ukuguquguquka kunye neempawu zoomatshini ezibalaseleyo;
9. Unamava amade kakhulu kwimveliso yeekhemikhali zendlela yokuvelisa iimveliso ezisemgangathweni ozinzileyo kunye namava okugcina uzinzo kwindawo yokugcina izinto;
10. Kulula kakhulu ukuyidibanisa ne-colloid ekhuselayo (i-polyvinyl alcohol) esebenza kakuhle.
02. Umgubo weresin
Uninzi lwempuphu yerabha ye-“resin” ethengiswayo iqulethe into yekhemikhali i-DBP. Ungajonga ubungozi bale nto yekhemikhali, echaphazela ukusebenza ngokwesondo kwamadoda. Inani elikhulu lolu hlobo lwempuphu yerabha liqokelelwe kwindawo yokugcina impahla nakwilebhu, kwaye linokuguquguquka okuthile. Imakethi yaseBeijing, edume ngobuninzi bayo be-“mpuphu yerabha”, ngoku inamagama ahlukeneyo e-“mpuphu yerabha” efakwe kwizinyibilikisi: umpu werabha onamandla aphezulu, umpu werabha ye-resin, njl. Iimpawu eziqhelekileyo:
1. Ukungasasazeki kakuhle, ezinye zivakala zimanzi, ezinye zivakala ngathi ziyashukuma (kufuneka zibe yinto enemingxuma efana ne-sepiolite) kwaye ezinye zimhlophe kwaye zomile kancinci kodwa zisanuka kakubi;
2. Ivumba elimnandi kakhulu;
3. Eminye imibala yongezwe, kwaye imibala ebonakalayo ngoku imhlophe, tyheli, ngwevu, mnyama, bomvu, njl.njl.;
4. Ubungakanani bokongeza buncinci kakhulu, kwaye ubungakanani bokongeza kwitoni enye yi-5-12 kg;
5. Amandla okuqala alungile ngendlela emangalisayo. Isamente ayinamandla kwiintsuku ezintathu, kwaye ibhodi yokukhusela i-insulation inokubola kwaye inamathele;
6. Kuthiwa ibhodi ye-XPS ayifuni iarhente yojongano;
Ngeesampuli ezifunyenweyo ukuza kuthi ga ngoku, kunokugqitywa kwelokuba yi-resin esekwe kwisinyibilikisi efunxwa zizinto ezikhanyayo ezinemingxuma, kodwa umthengisi ufuna ukuliphepha ngabom igama elithi “isinyibilikisi”, ngoko ke libizwa ngokuba “ngumgubo werabha”.
isiphene:
1. Ukumelana kwemozulu kwesinyibilikisi yingxaki enkulu. Elangeni, siya kuphuma ngokukhawuleza. Nokuba asikho elangeni, ujongano lwe-bonding luya kubola ngokukhawuleza ngenxa yokwakhiwa kwe-cavity;
2. Ukumelana nokwaluphala, izinyibilikisi azimelani nobushushu, wonke umntu uyazi oku;
3. Ekubeni indlela yokubopha ikukuyinyibilikisa indawo edibanisa ibhodi yokwambathisa, ngokuchaseneyo, ikwatshabalalisa indawo edibanisa ibhodi. Ukuba kukho ingxaki ngale ngxaki kwinqanaba elilandelayo, impembelelo iya kuba yingozi;
4. Akukho ndlela isetyenziswa ngayo kwamanye amazwe. Ngenxa yamava aqhelekileyo eekhemikhali asetyenziswa kwamanye amazwe, akunakwenzeka ukuba ungafumani le nto.
Umgubo welatex ophinda unyibilike
1. Imveliso yomgubo welatex ophinda unyibilike yipowder ephinda inyibilike emanzini, eyi-copolymer ye-ethylene kunye ne-vinyl acetate, ene-polyvinyl alcohol njenge-colloid ekhuselayo.
2. Umgubo we-latex ophinda unyibilike we-VAE uneempawu zokwenza ifilimu, isisombululo samanzi esingama-50% senza i-emulsion, kwaye senza ifilimu efana neplastiki emva kokubekwa kwiglasi iiyure ezingama-24.
3. Ifilimu eyenziweyo inokuguquguquka okuthile kunye nokumelana namanzi. Ingafikelela kwinqanaba lesizwe.
4. Umgubo welatex ophinda udibane unamandla aphezulu okusebenza: unamandla aphezulu okubopha, ukusebenza okungaqhelekanga kunye nokusebenza okubalaseleyo kokungena kwamanzi, amandla amahle okubopha, uqinisa udonga ngokumelana okuhle kwe-alkali, kwaye unokuphucula ukunamathela kunye namandla okuguquguquka kodonga. Ukongeza kwi-plasticity, ukumelana nokuguguleka kunye nolwakhiwo, unamandla amakhulu okuguquguquka kodonga oluchasene nokuqhekeka.
umgubo weresin
1. Umgubo werabha we-resin luhlobo olutsha lohlengahlengiso lweemveliso ezifana nerabha, i-resin, i-polymer enemolekyuli eninzi, kunye nomgubo werabha ocoliweyo kakuhle;
2. Umgubo ngerabha we-resin uqinile ngokubanzi, awugugi, awusasazeki kakuhle, ezinye zivakala ngathi ziyagungqa (kufuneka zibe zizinto ezinemingxuma efana ne-sepiolite), kwaye kukho iipowder ezimhlophe (kodwa zinevumba elibi elifana nele-parafini);
3. Ezinye iipowder ze-resin ziyayitshisa ibhodi, kwaye ukuthintela amanzi akulunganga.
4. Ukumelana nemozulu kunye nokumelana namanzi komgubo werabha yeresin kuphantsi kunoko komgubo welatex. Ukumelana nemozulu yingxaki enkulu. Elangeni, iya kuphuma ngokukhawuleza. Nokuba ayikho elangeni, ujongano lokubopha luya kuba Ngenxa yokwakhiwa komngxuma, luya kubola ngokukhawuleza;
5. Umgubo werabha we-resin awunakuguquguquka, ingasathethwa ke ngokuguquguquka. Ngokwemigangatho yovavanyo lwe-mortar yokukhusela udonga lwangaphandle, kuphela izinga lomonakalo webhodi ye-polystyrene elihlangabezana nomgangatho. Ezinye izalathisi azikho kumgangatho ofanelekileyo;
6. Umgubo werabha weresin ungasetyenziselwa kuphela ukubopha iibhodi zepolystyrene, kungekhona ii-vitrified beads kunye neebhodi ezingatshiyo.
Ixesha lokuthumela: Juni-02-2023