The object of the present invention is to provide a defoaming agent that is superior in defoaming properties (foam-breaking, foam-inhibiting effect, defoaming durability).
The present invention is a defoaming agent comprising a fatty acid amide (A), a base oil (B) that is liquid at 25°C, an oil thickening agent (C), and a surfactant (D), wherein the content of the fatty acid amide (A) is 1 to 10% by weight, the content of the base oil (B) that is liquid at 25°C is 71 to 97.9% by weight, the content of the oil thickening agent (C) is 0.1 to 10% by weight, and the content of the surfactant (D) is 1 to 9% by weight based on the weight of the fatty acid amide (A), the base oil (B) that is liquid at 25°C, the oil thickening agent (C), and the surfactant (D), and the viscosity (25°C) at a shear rate of 1000 s-1 is 0.1 to 1.0 Pa•s.
本发明的目的是提供一种消泡性能(破泡、抑泡效果、消泡持久性)优异的
消泡剂。
本发明是一种
消泡剂,包括
脂肪酸酰胺(A)、25°C 时呈液态的基础油(B)、油稠化剂(C)和表面活性剂(D),其中
脂肪酸酰胺(A)的含量为 1 至 10%(重量百分比),25°C 时呈液态的基础油(B)的含量为 71 至 97.9% (重量),油
增稠剂 (C) 的含量为 0.1 至 10% (重量),表面活性剂 (D) 的含量为 1 至 9% (重量),以
脂肪酸酰胺 (A)、25°C 时为液态的基础油 (B)、油
增稠剂 (C) 和表面活性剂 (D) 的重量为基准,剪切速率为 1000 s-1 时的粘度 (25°C) 为 0.1 至 1.0 Pa-s。