Anti-sagging test ntawm pobzeb nplaum ua nrog HPMC

Ua qhov kev ntsuam xyuas los tiv thaiv sagging rau pobzeb nplaum ua nrog Hydroxypropyl Methylcellulose (HPMC) suav nrog kev ntsuam xyuas cov nplaum lub peev xwm los tiv thaiv sagging los yog slumping thaum siv vertically rau lub substrate. Nov yog cov txheej txheem dav dav rau kev ua qhov kev sim tshuaj tiv thaiv sagging:

Cov ntaub ntawv xav tau:

1. Pobzeb nplaum (formulated nrog HPMC)
2. Substrate los yog ntsug nto rau daim ntawv thov (xws li, pobzeb, board)
3. trowel los yog notched trowel
4. Qhov hnyav lossis khoom thauj khoom (yeem)
5. Timer lossis stopwatch
6. Cov dej huv thiab daim txhuam cev (rau ntxuav)

Txheej txheem:

1. Kev npaj:
   • Npaj cov nplais nplaum nplaum siv qhov xav tau HPMC concentration raws li cov chaw tsim khoom cov lus qhia.
   • Xyuas kom lub substrate los yog ntsug nto yog huv si, qhuav, thiab tsis muaj plua plav los yog khib nyiab. Yog tias tsim nyog, prime lub substrate raws li tus neeg tsim khoom nplaum cov lus pom zoo.
2. Daim ntawv thov:
   • Siv lub trowel los yog trowel los siv cov pobzeb nplaum vertically rau lub substrate. Siv cov nplaum rau hauv ib lub thickness zoo ib yam, ua kom tag nrho cov kev pab cuam ntawm substrate.
   • Siv cov nplaum nplaum rau hauv ib qho dhau los, tsis txhob rov ua haujlwm ntau dhau lossis ua haujlwm.
3. Kev ntsuam xyuas Sagging:
   • Pib lub timer lossis stopwatch sai li sai tau thaum siv cov nplaum nplaum.
   • Saib xyuas cov nplaum rau cov cim qhia ntawm sagging lossis slumping raws li nws teev. Sagging feem ntau tshwm sim hauv thawj ob peb feeb tom qab thov.
   • Ntsuam xyuas qhov sagging visually, ntsuas ib qho kev txav txav ntawm cov nplaum los ntawm qhov pib daim ntawv thov.
   • Optionally, siv ib tug hnyav los yog loading ntaus ntawv los siv ib tug ntsug load rau cov nplaum los simulate lub luj ntawm cov vuas thiab ua kom sagging.
4. Lub Sijhawm Saib Xyuas:
   • Txuas ntxiv saib xyuas cov nplaum ntawm lub sijhawm tsis tu ncua (piv txwv li, txhua 5-10 feeb) kom txog thaum nws ncav cuag lub sijhawm pib teev tseg los ntawm cov chaw tsim khoom nplaum.
   • Sau txhua qhov kev hloov pauv ntawm cov nplaum nplaum qhov sib xws, zoo li, lossis tus cwj pwm sagging thaum lub sijhawm.
5. Ua tiav:
   • Thaum kawg ntawm lub sijhawm soj ntsuam, ntsuas qhov kawg ntawm txoj haujlwm thiab kev ruaj ntseg ntawm cov nplaum. Nco ntsoov ib qho tseem ceeb sagging los yog slumping uas tshwm sim thaum lub sij hawm xeem.
   • Yog tias tsim nyog, tshem tawm cov nplaum ntau dhau uas tau sagged los yog slumped los ntawm substrate siv ib daim txhuam cev huv los yog ntaub.
   • Ntsuam xyuas cov txiaj ntsig ntawm qhov kev ntsuam xyuas los tiv thaiv sagging thiab txiav txim siab qhov tsim nyog ntawm daim ntawv nplaum rau kev siv ntsug.
6. Cov ntaub ntawv:
   • Sau cov kev soj ntsuam ntxaws ntxaws los ntawm kev sim tshuaj tiv thaiv sagging, suav nrog lub sijhawm ntawm lub sijhawm soj ntsuam, txhua tus cwj pwm sagging tau pom, thiab lwm yam ntxiv uas yuav cuam tshuam rau cov txiaj ntsig.
   • Sau cov HPMC concentration thiab lwm yam ntaub ntawv qhia txog kev siv yav tom ntej.

Los ntawm kev ua raws li cov txheej txheem no, koj tuaj yeem txheeb xyuas cov khoom tiv thaiv ntawm cov nplais nplaum tsim nrog Hydroxypropyl Methylcellulose (HPMC) thiab txiav txim siab nws qhov tsim nyog rau kev siv ntsug xws li phab ntsa tiling. Kev hloov kho tuaj yeem ua rau cov txheej txheem xeem raws li qhov xav tau raws li cov qauv nplaum tshwj xeeb thiab cov kev xav tau kuaj.