Eminyakeni yamuva nje, kuye kwavela inqwaba yempuphu yerabha ye-resin, impuphu yerabha enamandla amakhulu engangeni manzi kanye nenye impuphu yerabha eshibhile kakhulu emakethe ukuze ithathe indawo ye-VAE emulsion yendabuko (i-vinyl acetate-ethylene copolymer), eyomisiwe ngesifutho futhi ingasetshenziswa kabusha. Impuphu ye-latex ehlakazekayo, pho-ke uyini umehluko phakathi kwempuphu yerabha ye-resin kanye nempuphu ye-latex ehlakazekayo, ingabe impuphu yerabha ye-resin ingathatha indawo yempuphu ye-latex ehlakazekayo? Isikhungo Sobuchwepheshe Be-Yongqiang Mortar sizokuholela ekuhlaziyeni kafushane umehluko phakathi kwalokhu okubili ukuze ubhekisele kukho:
1. Impuphu ye-latex ephinde ihlakazeke
Njengamanje, izimpushana ze-polymer ezisakazekayo ezisetshenziswa kabanzi emhlabeni yilezi: i-vinyl acetate kanye ne-ethylene copolymer rubber powder (VAC/E), i-ethylene kanye ne-vinyl chloride kanye ne-vinyl laurate terpolymer rubber powder (E/VC/VL), i-acetic acid I-vinyl ester kanye ne-ethylene kanye ne-higher fatty acid vinyl ester terpolymer rubber powder (VAC/E/VeoVa), lezi zimpushana ze-polymer ezintathu ezisakazekayo zibusa imakethe yonke, ikakhulukazi i-vinyl acetate kanye ne-ethylene copolymer rubber powder I-VAC/E/VeoVa E, inesikhundla esiphambili emkhakheni womhlaba wonke futhi imelela izici zobuchwepheshe zezimpushana ze-polymer ezisakazekayo. Kuseyisisombululo sobuchwepheshe esingcono kakhulu maqondana nolwazi lobuchwepheshe ngama-polymer asetshenziswa ekuguqulweni kwe-mortar:
1. Ingenye yama-polymer asetshenziswa kakhulu emhlabeni;
2. Yiba nolwazi oluningi kakhulu lokusebenzisa emkhakheni wokwakha;
3. Ingahlangabezana nezakhiwo ze-rheological ezidingwa yi-mortar (okungukuthi ukusebenza okudingekayo);
4. I-resin ye-polymer enamanye ama-monomer inezici zama-compounds aphansi e-organic volatile (VOC) namagesi aphansi okucasula;
5. Inezici zokumelana okuhle kakhulu ne-UV, ukumelana okuhle nokushisa kanye nokuqina kwesikhathi eside;
6. Inokumelana okuphezulu kwe-saponification;
7. Inebanga lokushisa lokushintsha kwengilazi elibanzi kakhulu (Tg);
8. Inesibopho esihle kakhulu esibanzi, ukuguquguquka kanye nezakhiwo zemishini;
9. Yiba nesipiliyoni eside kakhulu ekukhiqizeni amakhemikhali mayelana nendlela yokukhiqiza imikhiqizo esezingeni elizinzile kanye nesipiliyoni sokugcina ukuqina kwesitoreji;
10. Kulula ukuhlanganisa ne-colloid evikelayo (i-polyvinyl alcohol) esebenza kahle kakhulu.
2. Impuphu ye-resin
Iningi lama-powder enjoloba “e-resin” emakethe aqukethe i-DBP yamakhemikhali. Ungahlola ubungozi balesi sithako samakhemikhali, esithinta ukusebenza kobulili kwabesilisa. Inani elikhulu lama-powder enjoloba anjalo anqwabelene ezindaweni zokugcina impahla nasema-laboratory, futhi ayashintshashintsha ngezinga elithile. Imakethe yaseBeijing, edume ngokukhiqiza kwayo “i-rubber powder”, manje isivele uhlobo “lwe-rubber powder” olucwiliswe ezincibilikisini ezinamagama ahlukahlukene: i-adhesive powder enamandla amakhulu angangeni manzi, i-resin adhesive powder, njll. Izici ezijwayelekile:
1. Ukungasabalali kahle, okunye kuzwakala kumanzi, okunye kuzwakala sengathi kuyakhukhuleka (kufanele kube yinto enezimbobo njenge-sepiolite), kanti okunye kumhlophe futhi komile kancane kodwa kusanuka;
2. Iphunga elimnandi kakhulu;
3. Kufakwe eminye imibala, kanti imibala yamanje imhlophe, iphuzi, ingwevu, imnyama, ibomvu, njll.;
4. Inani lokwengeza lincane kakhulu, futhi inani lokwengeza lethani elilodwa lingu-5 ~ 12 kg;
5. Amandla okuqala ayamangalisa. Usimende awunawo amandla izinsuku ezintathu, futhi ungagubha ibhodi lokuvikela bese ulinamathelisa.
6. Kuthiwa ibhodi le-XPS lingasetshenziswa ngaphandle kwe-ejenti yesixhumi esibonakalayo.
Ngamasampula atholakale kuze kube manje, kungaphethwa ngokuthi iyi-resin esekelwe ku-solvent emuncwa izinto ezilula ezinezimbobo, kodwa umhlinzeki ufuna ukugwema igama elithi “solvent” ngamabomu, ngakho-ke libizwa ngokuthi “impuphu yerabha”
ukushiyeka:
1. Ukumelana nesimo sezulu kwe-solvent kuyinkinga enkulu. Elangeni, kuzoshintsha ngokushesha. Ngisho noma kungekho elangeni, i-bonding interface izobola ngokushesha ngenxa yokwakhiwa kwe-cavity;
2. Ukumelana nokuguga, isinyibilikisi asimelani nokushisa, wonke umuntu uyakwazi lokhu;
3. Njengoba indlela yokubopha iwukuncibilikisa isixhumi sebhodi lokufaka ugesi, ngokuphambene nalokho, ibhubhisa nesixhumi esibonakalayo sokubopha. Uma kuba nenkinga esigabeni esilandelayo, umthelela uzoba yingozi;
4. Akukho sibonelo sokusetshenziswa kwamanye amazwe. Njengoba sekuvuthiwe embonini yamakhemikhali eyisisekelo kwamanye amazwe, akunakwenzeka ukuthi ungayitholanga le nto.
isifinyezo:
Impuphu ye-polymer ehlakazekayo:
1. Umkhiqizo wempuphu ye-latex ephinde ihlakazeke uyimpuphu ephinde ihlakazeke emanzini, okuyi-copolymer ye-ethylene ne-vinyl acetate, futhi isebenzisa i-polyvinyl alcohol njenge-colloid evikelayo.
2. Impuphu ye-latex ephinde ihlakazeke ye-VAE inezakhiwo zokwakha ifilimu, isixazululo samanzi esingu-50% sakha i-emulsion, futhi yakha ifilimu efana nepulasitiki ngemva kokufakwa engilazini amahora angu-24.
3. Ifilimu eyakhiwe inokuguquguquka okuthile kanye nokumelana namanzi. Ingafinyelela amazinga kazwelonke.
4. Impuphu ye-latex ephinde ihlakazeke inamandla aphezulu okubopha: inamandla aphezulu okubopha, ukusebenza okuyingqayizivele kanye nokusebenza okumangalisayo kokungangeni manzi, amandla amahle okubopha, inika udonga ukumelana okuhle kakhulu kwe-alkali, futhi ingathuthukisa ukunamathela kanye namandla okuguquguquka kodonga. , i-plasticity, ukumelana nokuguguleka kanye nokwakhiwa, inokuguquguquka okunamandla kodonga olulwa nokuqhekeka.
Impuphu ye-resin:
1. Impuphu yerabha ye-resin uhlobo olusha lokushintsha irabha, i-resin, i-polymer yama-macromolecular, impuphu yerabha egayiwe nezinye izinto.
2. Impuphu yerabha ye-resin iqinile, imelana nokuklwebheka, ayihlakazeki kahle, eminye izwakala sengathi iyathuthumela (kufanele ibe yinto enezimbobo njenge-sepiolite), kanye nempuphu emhlophe (kodwa inephunga elimnandi elifana nelikaphalafini)).
3. Amanye ama-resin powder ayalimaza ibhodi, futhi ukuvimbela amanzi angabi yingozi.
4. Ukumelana nesimo sezulu kanye nokumelana namanzi kwempuphu yerabha ye-resin kuphansi kunokwempuphu ye-latex. Ukumelana nesimo sezulu kuyinkinga enkulu. Elangeni, kuzoshintsha ngesikhathi esifushane. Ngisho noma kungekho elangeni, isixhumi esibonakalayo sokubopha, Njengoba kuyisakhiwo sembobo, sizophinde sibole ngokushesha.
5. Impuphu yerabha ye-resin ayinakho ukubumba, futhi ayinakuguquguquka. Ngokwezinga lokuhlola lodaka lokuvikela lwangaphandle lwezindonga zangaphandle, izinga lokubhujiswa kwebhodi le-polystyrene kuphela elihlangabezana nezinga elijwayelekile. Ezinye izinkomba azikho ezingeni elijwayelekile.
6. Impuphu ye-resin ingasetshenziswa kuphela kumabhodi e-polystyrene okubopha, hhayi ukubopha ubuhlalu obune-vitrified namabhodi angashi.
Isikhathi sokuthunyelwe: Okthoba-31-2022