Eminyakeni yamuva nje, kuye kwavela inqwaba yempuphu yerabha ye-resin, impuphu yerabha enamandla aphezulu engangeni manzi kanye nenye impuphu yerabha eshibhile kakhulu emakethe ukuze ithathe indawo ye-VAE emulsion yendabuko (i-vinyl acetate-ethylene copolymer), eyomiswa ngesifutho futhi yenziwe ngempuphu yerabha ephinde isetshenziswe. Impuphu ye-latex ehlakazekile, ngakho-ke uyini umehluko phakathi kwempuphu ye-resin nempuphu ye-latex ephinde isetshenziswe, ingabe impuphu ye-resin ingathatha indawo yempuphu ye-latex ephinde isetshenziswe?
Hlaziya kafushane umehluko phakathi kwalokhu okubili ukuze uthole izinkomba:
01. Impuphu ye-latex ephinde ihlakazeke
Njengamanje, izimpushana ze-latex eziphinde zihlakazeke ezisetshenziswa kabanzi emhlabeni yizi: i-vinyl acetate kanye ne-ethylene copolymer powder (VAC/E), i-ethylene, i-vinyl chloride kanye ne-vinyl laurate ternary copolymer powder (E/VC/VL), i-acetic acid I-Vinyl ester, i-ethylene kanye ne-higher fatty acid vinyl ester ternary copolymer powder (VAC/E/VeoVa), lezi zimpushana ezintathu ze-latex eziphinde zihlakazeke zibusa imakethe yonke, ikakhulukazi i-vinyl acetate kanye ne-ethylene copolymer powder VAC/EE, zithatha isikhundla esiphambili emkhakheni womhlaba wonke futhi zimelela izici zobuchwepheshe zempushana ye-polymer ephinde ihlakazeke. Kuseyisisombululo sobuchwepheshe esingcono kakhulu maqondana nolwazi lobuchwepheshe ngama-polymer asetshenziswa ekuguqulweni kwe-mortar:
1. Ingenye yama-polymer asetshenziswa kakhulu emhlabeni;
2. Ulwazi lokufaka isicelo emkhakheni wokwakha lubaluleke kakhulu;
3. Ingahlangabezana nezakhiwo ze-rheological ezidingwa yi-mortar (okungukuthi, ukwakheka okudingekayo);
4. I-resin ye-polymer enamanye ama-monomer inezici ze-low organic volatile matter (VOC) kanye negesi ecasulayo ephansi;
5. Inezici zokumelana okuhle kakhulu ne-UV, ukumelana okuhle nokushisa kanye nokuqina kwesikhathi eside;
6. Ukumelana okuphezulu ne-saponification;
7. Inobubanzi obukhulu kakhulu bokushintsha kwengilazi (Tg);
8. Inesibopho esibanzi, ukuguquguquka kanye nezakhiwo zemishini ezinhle kakhulu;
9. Yiba nesipiliyoni eside kakhulu ekukhiqizeni amakhemikhali sendlela yokukhiqiza imikhiqizo esezingeni elizinzile kanye nesipiliyoni sokugcina ukuqina kwesitoreji;
10. Kulula kakhulu ukuhlanganisa ne-colloid evikelayo (i-polyvinyl alcohol) esebenza kahle kakhulu.
02. Impuphu ye-resin
Iningi lempuphu yerabha ye-“resin” emakethe liqukethe into yamakhemikhali i-DBP. Ungahlola ubungozi balesi sithako samakhemikhali, esithinta ukusebenza kobulili kwabesilisa. Inani elikhulu lalolu hlobo lwempuphu yerabha linqwabelene endlini yokugcina impahla naselabhorethri, futhi linokuguquguquka okuthile. Imakethe yaseBeijing, edume ngobuningi bayo be-“mpuphu yerabha”, manje inezinhlobo ezahlukene zamagama “empuphu yerabha” ecwiliswe ezinyibilikisi: impuphu yerabha enamandla amakhulu engangeni manzi, impuphu yerabha ye-resin, 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 kabi;
2. Inuka kabi kakhulu;
3. Kufakwe eminye imibala, futhi imibala evelayo njengamanje imhlophe, iphuzi, ingwevu, imnyama, ibomvu, njll.;
4. Inani lokwengeza lincane kakhulu, kanti inani lokwengeza ithani elilodwa lingu-5-12 kg;
5. Amandla okuqala amahle ngokumangalisayo. I-samente ayinawo amandla ezinsukwini ezintathu, futhi ibhodi lokuvikela lingagqwala futhi linamathele;
6. Kuthiwa ibhodi le-XPS alidingi i-ejenti yesixhumi esibonakalayo;
Ngamasampula atholakale kuze kube manje, kungaphethwa ngokuthi iyi-resin esekelwe ku-solvent emuncwa izinto ezikhanyayo ezinezimbobo, kodwa umhlinzeki ufuna ukugwema ngamabomu igama elithi “solvent”, ngakho-ke libizwa ngokuthi “impuphu yerabha”.
ukushiyeka:
1. Ukumelana nesimo sezulu kwe-solvent kuyinkinga enkulu. Elangeni, izonyamalala ngesikhathi esifushane. Ngisho noma ingekho elangeni, i-bonding interface izobola ngokushesha ngenxa yokwakhiwa kwe-cavity;
2. Ukumelana nokuguga, izinyibilikisi azimelani nokushisa, wonke umuntu uyakwazi lokhu;
3. Njengoba indlela yokubopha iwukuncibilikisa isixhumi sebhodi lokufaka ugesi, ngokuphambene nalokho, ibhubhisa nesixhumi esibonakalayo sokubopha. Uma kunenkinga ngale nkinga esigabeni esilandelayo, umthelela uzoba yingozi;
4. Akukho sibonelo sokusetshenziswa kwamanye amazwe. Ngolwazi olujwayelekile lwamakhemikhali ayisisekelo kwamanye amazwe, akunakwenzeka ukuthi ungalutholi lolu hlobo.
Impuphu ye-latex ephinde ihlakazeke
1. Umkhiqizo wempuphu ye-latex ephinde ihlakazeke uyimpuphu ephinde ihlakazeke emanzini, okuyi-copolymer ye-ethylene ne-vinyl acetate, ene-polyvinyl alcohol njenge-colloid evikelayo.
2. Impuphu ye-latex ephinde ihlakazeke ye-VAE inezakhiwo zokwakha ifilimu, isixazululo samanzi esingu-50% sakha i-emulsion, futhi sakha ifilimu efana nepulasitiki ngemva kokufakwa engilazini amahora angu-24.
3. Ifilimu eyakhiwe inokuguquguquka okuthile kanye nokumelana namanzi. Ingafinyelela izinga likazwelonke.
4. Impuphu ye-latex ephinde ihlakazeke inamandla aphezulu okubopha: inamandla aphezulu okubopha, ukusebenza okuyingqayizivele kanye nokusebenza okuvelele kokungena kwamanzi, amandla amahle okubopha, iqinisa ubumba ngokumelana okuhle kakhulu kwe-alkali, futhi ingathuthukisa ukunamathela kanye namandla okuqina kobumba Ngaphezu kokuqina, ukumelana nokuguguleka kanye nokwakhiwa, inokuguquguquka okunamandla kubumba olulwa nokuqhekeka.
impuphu ye-resin
1. Impuphu yerabha ye-resin uhlobo olusha lokushintsha imikhiqizo efana nerabha, i-resin, i-polymer yama-molecule amaningi, kanye nempuphu yerabha egayiwe kahle;
2. Impuphu yerabha ye-resin ihlala isikhathi eside, ayigugi, ayisabalali kahle, eminye izwakala sengathi iyagobhoza (kufanele ibe yinto enezimbobo njenge-sepiolite), futhi kukhona impuphu 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, kuzonyamalala ngesikhathi esifushane. Ngisho noma kungekho elangeni, i-bonding interface izobola ngokushesha Ngenxa yokwakhiwa kwesikhala, izobola futhi ngokushesha;
5. Impuphu yerabha ye-resin ayinakho ukubumbeka, ingasaphathwa eyokuguquguquka. Ngokwezindinganiso zokuhlola ze-mortar yokuvikela udonga lwangaphandle, izinga lomonakalo lebhodi le-polystyrene kuphela elihlangabezana nezinga. Ezinye izinkomba azikho ezingeni elijwayelekile;
6. Impuphu yerabha ye-resin ingasetshenziswa kuphela ukubopha amabhodi e-polystyrene, hhayi ama-vitrified beads namabhodi angashi.
Isikhathi sokuthunyelwe: Juni-02-2023