Lub mechanism ntawm thixotropic lubricant nyob rau hauv mortar

Thixotropic lubricants yog siv nyob rau hauv mortar los txhim kho nws cov workability thiab yooj yim ntawm daim ntawv thov.Cov lubricants no ua haujlwm los ntawm kev txo cov kev sib txhuam ntawm cov tshuaj khib thiab cov substrate thaum lub sij hawm thov, ua rau cov txheej txheem yooj yim dua thiab ua tau zoo dua.Lub mechanism ntawm thixotropic lubricants nyob rau hauv mortar yuav piav raws li nram no:

1. Thixotropy: Thixotropic lubricants nthuav tawm tus cwj pwm thixotropic, uas txhais tau hais tias lawv muaj qhov rov qab viscosity uas txo qis nrog kev siv shear stress.Qhov no txhais tau hais tias thaum lub mortar sib xyaw, cov roj nplua nyeem ua kua ntau dua, txo qhov kev tiv thaiv kom ntws.Thaum lub shear stress raug tshem tawm, lub viscosity ntawm lub lubricant nce, ua rau kom tsis txhob ntws thiab tiv thaiv sagging los yog slumping ntawm lub mortar.
2. Lubrication: Thixotropic lubricants ua lub lubricant nruab nrab ntawm cov mortar thiab substrate.Qhov no txo ​​qhov kev sib txhuam ntawm ob qhov chaw, ua rau daim ntawv thov ntawm cov tshuaj khib nyiab yooj yim dua thiab smoother.Qhov no yog qhov tseem ceeb tshwj xeeb tshaj yog nyob rau hauv cov xwm txheej uas lub substrate nto yog ntxhib los yog ntxeem tau, raws li nws tuaj yeem txo qhov kev pheej hmoo ntawm kev puas tsuaj rau lub substrate lossis mortar.
3. Adhesion: Thixotropic lubricants kuj tuaj yeem txhim kho qhov adhesion ntawm mortar rau lub substrate los ntawm kev txo cov huab cua nkag thiab cais cov mortar thaum thov.Qhov no yog ua tiav los ntawm kev txo cov viscosity ntawm cov tshuaj khib thiab tso cai rau nws kom kis tau tusyees ntau dua ntawm cov substrate nto.Qhov no tuaj yeem txhim kho qhov kev sib txuas tag nrho ntawm cov mortar thiab substrate, txo qhov kev pheej hmoo ntawm kev sib tsoo lossis tsis ua haujlwm.

Hauv cov ntsiab lus, cov txheej txheem ntawm thixotropic lubricants nyob rau hauv mortar yog nyob ntawm lawv tus cwj pwm thixotropic, lubrication, thiab adhesion zog.Thixotropic lubricants txo cov kev sib txhuam ntawm cov tshuaj khib thiab cov substrate, ua rau daim ntawv thov ntawm mortar yooj yim dua thiab smoother.Lawv kuj txhim kho qhov adhesion ntawm mortar rau lub substrate los ntawm kev txo cov cua nkag thiab kev sib cais, ua rau muaj kev sib raug zoo ntawm ob qhov chaw.Thixotropic lubricants tuaj yeem txhim kho tag nrho cov kev ua tau zoo thiab ua haujlwm ntawm cov tshuaj khib nyiab, ua rau muaj kev tsim kho kom zoo dua qub.