Adaptability ntawm dej reducer rau kub

Thaum qhov kub thiab txias tsis tshua muaj, qhov fluidity poob ntawm cov pob zeb tshiab kuj exacerbated. Qhov kev ntsuam xyuas ntawm polycarboxylate rau qhov kub thiab txias adaptability qhia tau hais tias thaum kub siab tshaj 2 0 degrees nyob rau hauv lub tsev xog paj, qhov poob ntawm cov pob zeb nce me ntsis, qhov dispersibility txhim kho me ntsis, thiab dispersibility txo me ntsis ntawm qhov kub thiab txias, tab sis fluidity retention peev xwm yog ruaj khov. Ob qho slump thiab expansion ntawm pob zeb nce, thiab thaum kub qis dua 0 degrees, fluidity ntawm pob zeb nce ntau heev. Raws li qhov kub thiab txias, cov dej-txo kev ua tau zoo ntawm polycarboxylate-cov pob zeb sib xyaw ua kom zoo dua. Thaum qhov kub thiab txias siab tshaj 20 degrees, cov dej- txo qhov kev ua tau zoo ntawm cov pob zeb zoo li ruaj khov, tab sis qhov kev tuav pov hwm poob qis me ntsis, thiab qhov kev nthuav dav yuav tsis nyob rau lub sijhawm no. Kev nce ntxiv, qee zaum muaj qhov txo qis me ntsis, tab sis feem ntau, polycarboxylic acid yog qhov tsim nyog rau qhov kub thiab txias hauv lub caij ntuj no los yog kub kub hauv lub caij ntuj sov, thiab qhov ua tau zoo ntawm cov pob zeb ua tau zoo heev. Tshwj xeeb, nws tsis yog yuav tsum tau siv txoj kev retardation los tswj cov pob zeb tawg. Qhov no muaj txiaj ntsig zoo rau kev tsim vaj tsev.