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Effect of PEG on stability of Alkalinity silica sol

机译：PEG对碱性硅胶稳定性的影响

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It is known that the rate of coagulation depends mainly on the stability of the colloidal particles and that the solution pH and potential are the main factors affecting the colloidal stability. The stability of dispersion (the ability of the dispersion to resist coagulation) may be related to its kinetic stability, which in turn depends on the force barrier preventing collision between the particles and thus preventing their coagulation. The addition of surfactant can change the pH and the potential of silica sol. So PEG is select to improve the stability of silica sol. The results presented here show that surfactant, PEG, has a strong consequence on the stability of silica dispersion. With the molecular weight increasing, the stability of silica sol is weakening.
机译：众所周知，凝结速率主要取决于胶体颗粒的稳定性，溶液pH和潜力是影响胶体稳定性的主要因素。分散的稳定性（分散抗蚀剂的能力）可能与其动力学稳定性有关，这又取决于力屏障，防止颗粒之间的碰撞，从而防止它们的凝结。表面活性剂的添加可以改变二氧化硅溶胶的pH和电位。因此PEG选择以改善二氧化硅溶胶的稳定性。介绍的结果表明，表面活性剂PEG对二氧化硅分散体的稳定性具有很大的结果。随着分子量的增加，二氧化硅溶胶的稳定性削弱。

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