CAJ | 학술논문

对于磷酸镁水泥，选择使用原材料是重要的改性方法。为提高材料性能，通过变化聚合物乳液种类及掺量，试验研究聚合物对磷酸镁水泥的适用性。结果表明：聚合物乳液的物理性质粘度与改性磷酸镁水泥的密度、流动性及凝结时间有较紧密联系；而聚合物乳液的化学性质pH 值则可能是影响改性磷酸镁水泥力学性质的重要因素；合适的聚合物乳液在适宜掺量下能对改性磷酸镁水泥的抗压强度产生较小影响，提高材料的抗折强度与粘结强度，并显著增大断裂能；掺加聚合物乳液不改变磷酸镁水泥的水化产物类型，但显著影响水化产物的形貌与结构的密实程度。
대우린산미수니，선택사용원재료시중요적개성방법。위제고재료성능，통과변화취합물유액충류급참량，시험연구취합물대린산미수니적괄용성。결과표명：취합물유액적물이성질점도여개성린산미수니적밀도、류동성급응결시간유교긴밀련계；이취합물유액적화학성질pH 치칙가능시영향개성린산미수니역학성질적중요인소；합괄적취합물유액재괄의참량하능대개성린산미수니적항압강도산생교소영향，제고재료적항절강도여점결강도，병현저증대단렬능；참가취합물유액불개변린산미수니적수화산물류형，단현저영향수화산물적형모여결구적밀실정도。
The selection of suitable raw materials is an important method to improve the performance of magnesium phosphate cement.By changing the kind and amount of polymer emulsions added in magnesium phosphate cement,the applicability of polymers was studied.The results show that the viscosity of poly-mer emulsions is well correlated with the density,fluidity and setting time of modified magnesium phos-phate cement;the pH value of polymer emulsions is an important factor affecting the mechanical properties of modified magnesium phosphate cement;the effect of a suitable polymer emulsion and its dosage on the compressive strength of modified magnesium phosphate cement is comparatively less,but it can improve the bond strength and flexural strength of the material and significantly increase its fracture energy. Adding polymer emulsions does not change the type of hydration products.However,the morphology of hydrated products and its dense degree are significantly affected.