Indima ye-latex evuselelayo ye-latex endiweni ngodaka
Njengamanje, njengoba imikhiqizo ekhethekile ekhethekile yodaka ekhethekile yamukelwa kancane kancane futhi isetshenziswa kabanzi, abantu abasembonini banaka i-latex powder evuselelayo njengenye yezithasiselo eziphambili ze-powder enomile, ngakho-ke iminikelo ehlukahlukene ivele kancane kancane. I-latex powder, i-lite-poly-polmer latex powder, i-resin latex powder, i-resin-based resin latex towx nokunye.
Izakhiwo ze-microscopic kanye nokusebenza kwe-macroscopic kwe-latex evuselelayo ye-latex powder ku-motar kuhlanganiswe, futhi eminye imiphumela ye-theory iyahlaziywa. Indlela yokwenza ye-latex evuselelayo ye-latex powder redisperperible towettex i-latex ukulungiselela i-polymer emulsion ibe yingxube engasetshenziselwa ukunamathisela i-colloid yomiswa ngokungeza ifomu le-polymer ngemuva kokomiswa kwe-polymer ngemuva kokuwohloka kwe-polymer. I-powder egeleza mahhala ilungele emanzini. I-powder evuselelayo ye-latex isatshalaliswa olimini olomile olushukumisayo. Ngemuva kokuthi udaka luvuswe ngamanzi, i-polymer powder ihlelwe kabusha ku-slurry esanda kuxutshwa futhi yagcwala futhi; Ngenxa ye-hydrate ye-CEAND, ukuhwamuka komhlaba kanye nokutholwa kwesendlalelo sesisekelo, ama-pores ngaphakathi kodaka akhululekile. Ukusetshenziswa kwamanzi okuqhubekayo kanye nemvelo eqinile ye-alkali ene kuhlinzekwe ngosimende yenza izinhlayiya ze-latex zomile ukuze zakhe ifilimu eliqhubekayo elingafakwanga emanzini odaka. Le filimu eqhubekayo yakhiwa ukuhlanganiswa kwezinhlayiya ezihlakazekile ezihlakazekile emulsion emzimbeni onobunzima. Ukuba khona kwalawa mafilimu we-latex asatshalaliswa ku-polymer modified motar evumela udaka lwe-polymer olungatholwa ngodaka lwefilimu le-polyx, kungenxa yokuzikhandla, lokhu kungenza ukuthuthukisa ukusebenza kwe-pormer kanye nezisekelo ezihlukile, njengokunamathela kokukhethekile izisekelo ezinjenge-ceramic tensity tile namabhodi e-polystyrene; Lo mphumela ngaphakathi kodaka ungawugcina uwonke, ngamanye amagama, amandla abumbene owesimende athuthukiswa, futhi njengoba inani le-latex ye-latex evuselelwayo likhuphuka, amandla e-latex evuselelwayo akhuphuka, amandla ebhondi phakathi kodaka kanye nokhonkolo olwathuthukiswa kakhulu; Phezulu kokuba khona kwezizinda ze-polymer eziguquguqukayo futhi kakhulu zithuthukise kakhulu ukuguquguquka kwezibopho nokuguquguquka kodaka, ngenkathi i-modulus ye-elastic yodaka uqobo yehle kakhulu, okukhombisa ukuthi ukuguquguquka kwayo kwathuthukiswa. Ifilimu le-latex ibonwe ngaphakathi kodaka ku-polymer cement usimende ngodaka ngodaka oluhlukile. Ifilimu eyakhiwa i-latex isatshalaliswa ezikhundleni ezihlukile ku-wortar, kufaka phakathi isikhombimsebenzisi se-base-udaka, phakathi kwama-pores, azungeze udonga lwe-holly, phakathi kwe-aggregation, kanye ne-aggregate interface. Amanye amafilimu aseTatex asatshalaliswa ku-Mortar eguqulwe yi-RedisPressible Polymer Powder yenza ukuthi kube khona ukuthi kutholakale izakhiwo ezingenawo ama-shritar udaka olungathola khona Thuthukisa ukubekeka kodaka. Ukuphuculwa kwamandla okubumbana kodaka: Ukuba khona kwezizinda ze-polymer eziguquguqukayo kakhulu futhi eziphakeme kakhulu ze-polymer kuthuthukisa ukuguquguquka nokuqina kodaka, ukuhlinzeka ngokubumbana kanye nokuziphatha okunamandla ku-skeleton eqinile. Lapho amandla asetshenzisiwe, ukwakheka kwe-microcrack kubambezeleka kuze kube yilapho izingcindezi eziphakeme zifinyelelwa ngenxa yokuguquguquka okuthuthukile kanye nokuqina. Izizinda zePolymer ziphinde zivimbele ama-coalescence ama-microcracks abe yimifantu engenile. Ngakho-ke, i-latex evuselelayo ye-latex yandisa ukucindezela nokuhlupheka kwezinto ezibonakalayo. Ukuguqulwa kwe-polymer ku-usimende kasimende kwenza ukuthi laba bobabili bathole imiphumela ehambisanayo, ukuze udaka olushintshiwe lwe-polymer lungasetshenziswa ezikhathini eziningi ezikhethekile. Ngaphezu kwalokho, ngenxa yezinzuzo zodaka ngodaka olusezingeni eliphezulu ngokulawulwa kwekhwalithi, ukusebenza kwezokwakha, ukuvikelwa kokugcinwa kwemvelo, i-redisperiblet latex powder inikeza izindlela ezisebenzayo zobuchwepheshe zokukhiqiza imikhiqizo ekhethekile yodaka.
Ngokusekelwe ekwenzeni indlela yokusebenza kwe-polymer powder evuselelwa kabusha ngodaka, senze okuthile okuqhathanisayo ukuqinisekisa ukusebenza kwenye impahla njengamanje emakethe, eyaziwa nangokuthi i-latex powder, ngodaka. 1 I-Featle evuselelayo ye-Latex, Inani le-TG lingu -7 ° C, lapha libizwa nge-Latex Towx Fewle Fiber: Ifomula yokuhlolwa kwe-zzc500 ye-Latex Company: Ifomula yokuhlola ye-latex etholakalayo: Ukushisa okuthengiswayo (50 ± 5)%, uhlole ijubane lomoya elijikelezayo Indawo ingaphansi kuka-0.2m / s. Ibhodi le-polystrene elibunjiwe elinwetshiwe, ubuningi obuningi bungu-18kg / m3, uthathe bube ngo-400 × 500 × 5mm. 2. Imiphumela yokuhlola: 2.1 Amandla ashubile ngaphansi kwesikhathi esihlukile sokwelapha: ama-specimens enziwe ngokuya ngendlela yokuhlola yamandla e-motar Tensile Tendile amandla ku-JG149-2003. Uhlelo lokulapha lapha yile: Ngemuva kokuthi isampula lenziwe, liphulukiswa usuku olulodwa ngaphansi kwezimo ezijwayelekile zelebhu, bese zifaka kuhhavini we-50-degree. Isonto lokuqala lokuhlola yile: Like kuhhavini we-50-degree kuze kube usuku lwesithupha, lukhiphe, linamathele ikhanda lokuhlola ukuphuma, ngosuku lwe-7, kwahlolwa iqoqo lamandla okukhipha. Ukuhlolwa kweviki lesibili yile: Kubeke kuhhavini we-50-degree kuze kube usuku lwe-13, lukhiphe, unamathisele ikhanda lokuhlola ukuphuma, bese uvivinya iqoqo lamandla okudonsa ngosuku lwe-14. Isonto lesithathu, isonto lesine. . . njalo njalo.
Kusukela emiphumeleni, siyabona ukuthi amandla we-latex evuselelayo ye-latex ku-dutar enyuka futhi agcina njengoba isikhathi esisezingeni eliphakeme se-latex lizofika ku-latex powder lizofika, isikhathi eside i-latex ye-latex ebusweni obukhethekile bebhodi le-EPS. Ngokuphambene nalokho, i-latex etholakala ngentengiso etholakalayo 97 inamandla aphansi njengoba igcinwe endaweni yokushisa ephezulu isikhathi eside. Amandla abhubhisayo we-latex ye-latex ye-latex ebhodini le-EPS ahlala efana, kepha amandla okubhubhisa we-latex powder etholakalayo yezohwebo 97 ebhodini le-EPS liya libi futhi libi kakhulu.
Ngokuvamile, ngokujwayelekile, i-latex powder ethengiswayo ne-latex evuselelayo ye-latex inezindlela ezihlukile zesenzo, kanye ne-latex evuselelayo ye-latex, eyakha ifilimu ezingxenyeni ezihlukene zodaka, isebenza njengezinto zesibili zokugcina udaka ukuze zithuthukise izakhiwo zemvelo zodaka. Indlela yokwenza ukusebenza kokusebenza ayihambelani.
Isikhathi sePosi: Mar-31-2023