Gypsum Retarder

Gypsum retarder yog ib qho tshuaj ntxiv uas siv los ua kom qeeb lub sijhawm ntawm cov khoom siv gypsum, xws li plaster thiab sib koom ua ke. Qhov sib ntxiv ntawm gypsum retarder yog ib qho tseem ceeb nyob rau hauv cov xwm txheej uas yuav tsum tau ncua sij hawm ua hauj lwm los yog thaum lub ambient kub yog siab, raws li tej yam kev mob yuav ua rau lub gypsum teem sai heev, ua rau ib tug tsis zoo tag.

Gypsum yog ib qho ntxhia tshwm sim uas tau siv dav hauv kev tsim kho kev lag luam vim nws cov hluav taws kub zoo heev thiab lub suab rwb thaiv tsev. Gypsum-raws li cov ntaub ntawv yog tov nrog dej los tsim ib tug muab tshuaj txhuam uas yuav siv tau rau phab ntsa, qab nthab, thiab lwm yam nto los tsim ib tug du tiav.

Lub sijhawm teem sijhawm ntawm cov ntaub ntawv gypsum yog txiav txim siab los ntawm cov tshuaj tiv thaiv uas tshwm sim thaum cov gypsum tov nrog dej. Cov tshuaj tiv thaiv ua rau lub gypsum harden thiab ua nruj, thiab lub sij hawm teem yog lub sij hawm uas nws yuav siv sij hawm rau cov txheej txheem no tshwm sim.

Gypsum retarder ua haujlwm los ntawm kev txo qis cov tshuaj tiv thaiv uas ua rau gypsum harden. Qhov no tso cai rau cov khoom siv gypsum nyob twj ywm ua haujlwm tau ntev dua, uas yog qhov tseem ceeb tshwj xeeb thaum ua haujlwm kub thiab av noo, lossis thaum thaj chaw loj yuav tsum tau them.

Muaj ntau ntau hom gypsum retarder muaj nyob rau hauv kev ua lag luam, nrog rau cov organic thiab inorganic tebchaw. Organic retarders feem ntau yog raws li qab zib, starches, los yog cellulose derivatives, thaum inorganic retarders yog raws li ntsev los yog acids. Qhov kev xaiv ntawm retarder yuav nyob ntawm seb daim ntawv thov tshwj xeeb thiab qib xav tau ntawm retardation.

Qee qhov txiaj ntsig ntawm kev siv gypsum retarder suav nrog:

1. Lub sijhawm ua haujlwm txuas ntxiv: Gypsum retarder tso cai rau lub sijhawm ua haujlwm ntev, uas yog qhov tseem ceeb thaum npog thaj chaw loj lossis thaum ua haujlwm kub thiab av noo.
2. Txhim kho kev ua tiav: Lub sijhawm qeeb qeeb tuaj yeem ua rau smoother thiab ntau dua qhov ua tiav, vim tias cov khoom muaj sijhawm ntau dua los nthuav tawm thiab theem tawm.
3. Txo cov pov tseg: Los ntawm kev ua kom lub sijhawm qeeb, gypsum retarder tuaj yeem pab txo cov khoom pov tseg los ntawm kev tso cai rau cov khoom siv kom zoo dua.

Hauv kev xaus, gypsum retarder yog ib qho tseem ceeb ntxiv rau kev tswj lub sijhawm teem sijhawm ntawm cov ntaub ntawv gypsum. Nws tuaj yeem pab ncua sijhawm ua haujlwm, txhim kho qhov ua tiav, thiab txo cov khoom pov tseg. Qhov kev xaiv ntawm retarder yuav nyob ntawm seb daim ntawv thov tshwj xeeb thiab qib xav tau ntawm retardation.