Acrylic cob: characterization thiab daim ntawv thov

Acrylic resins yog siv rau cov yas, thiab polymeric composites thiab cov khoom thereof - txhaj tshuaj pob zeb, marble acrylic, polymer, accessories, acrylic dag pob zeb, mosaic pobzeb, dag marble, lub reinforcing rwb thaiv tsev ntaub. Lawv yog siv nyob rau hauv qhov siv thiab ua acrylic bathtubs, monuments, chaw, basins, rau cov ntaus ntawv ntawm cov kua polymer plag tsev thiab xim coatings.

Acrylic cob yog siv ua ke nrog polyester thiab epoxy resins. Nws yog yus muaj los ntawm ib tug siab tus nqi ntawm hardening thiab tsawg heev toxicity, uas tsis yog ib qho epoxy thiab polyester resins. Ua hauj lwm nrog cov khoom no yuav tsum tau muab nrog ib tug neeg tiv thaiv cov khoom (hnab looj tes, respirators, paj rwb hnav khaub ncaws hnav, kev tiv thaiv tsom iav) thiab overalls. Tag nrho cov ua hauj lwm thaum ua hauj lwm nrog dag resins yuav tsum tau nqa tawm nyob rau hauv cov chav uas yog nruab nrog yuam cua. Nyob rau hauv cov ntaub ntawv ntawm kev sib cuag nrog lub cob tivthaiv nyob rau hauv lub qhov muag yuav tsum tshaj ntxuav nrog dej.

Acrylic cob yuav siv tau ob qho tib si ntawm nws tus kheej thiab nrog sib txawv fillers. Muaj pes tsawg leeg ntawm cov khoom nyob rau hauv nws puag ib feem thiab ruaj khov neeg sawv cev (hmoov) - txog li 3% ntawm tag nrho cov ceeb thawj. Lub zoo kub nyob rau hauv ib chav tsev rau polymerization ntawm lub cob yuav tsum saum toj no 15 ° C. Thaum kub nram qab no 15 ° C, kws txawj pom zoo kom mus ntxiv cov sib tov rau 3.5% hardener. Nws yuav tsum tau muab sau tseg tias nyob rau hauv kub hauv qab no 10 ° C cov polymerization ntawm cov ntaub ntawv uas yog nce los ntawm ob peb lub sij hawm. Muab hais tias lub hardener yog heev ntub, ua ntej yuav siv nws yog tsim nyog los qhuav. Ua li no, nws xav tau kev pab yuav tsum tau muab tso rau hauv ib tug huv daim ntawv ntawm daim ntawv thiab qhia rau nws qhuav kom huv si. Nws yuav tsum tau nco ntsoov tias ntub hardener slows tus polymerization txheej txheem, cov muaj pes tsawg leeg yuav nws tus kheej hloov xim. Hardener hais txog heev tshuaj, li ntawd nws yog khaws cia ntub dej thiab tam sim ntawd los ntawm cov cua kub dab, ncaj qha tshav ntuj (ultraviolet lub teeb).

Acrylic cob yog poured mus rau hauv ib lub hnab yas ntim (thoob, khob, tais, thiab thiaj li nyob. D.), Tom qab uas nws tau ntxiv hardener, ces tus sib tov twb kom huv si do kom txog thaum tiav xaus ntawm lub granules (txog tsib feeb ntawm chav tsev kub). Cov uas ua sib tov twb tau sau rau hauv yuav tsum tau rho los. Hais tias pre-lubricated daim ntawv tso tawm cov neeg ua hauj (parting lacquers "Izokol", "Izolak" lithologic, roj los yog lwm yam lubricious yas ntaub ntawv). Tom qab kwv yees li 20-50 feeb (nyob ntawm seb ambient kub) lub sib tov twb polymerized. Thaum lub sij hawm polymerization nws yog rhuab (60 ° C thiab txawm ntau dua), li ntawd, nyob rau hauv kev txiav txim kom tsis txhob burning, nws yog tsis pom zoo thaum lub sij hawm lub polymerization touch daim ntawv ob txhais tes. Tag nrho cov hardening tshwm sim thaum lub sij hawm ib hnub twg, ib lub sij hawm nyob rau hauv lub ambient kub, khoom hnyav thiab ntim.

Acrylic cob nrog lub muab tub lim: ib txoj kev ntawm kev siv

Lub cob yog tov nrog rau ib tug hardener, tom qab uas lub resulting sib tov twb ntxiv, organic thiab inorganic fillers. Raws li ib tug tub lim siv marble tej daim, crushed pob zeb, xuab zeb, gravel, etc ... (Ntau zaus - marble tej daim). Nws yuav tsum tau nco ntsoov hais tias hais tias rau lub kob khoom muaj mus rau hauv lub inert pigments. Tag nrho cov Cheebtsam ntawm sib tov yog meej tov, ces sau rau hauv uas tsim nyog cov ntaub ntawv. Lub optimum piv ntawm cov acrylic cob thiab lub muab tub lim - 30:70.

Synthetic cob: ib txoj kev khaws cia

Lub cob yuav tsum tau muab cia rau hauv tsev, uas yog kev tiv thaiv tiv thaiv weathering, UV kev txiav txim. Raws li cov kev cai ntawm cia hluavtaws cob txee lub neej yog 1 xyoo.