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A platform for research: civil engineering, architecture and urbanism
Slow-release defoaming material as well as preparation method and application thereof
The invention provides a slow-release defoaming material as well as a preparation method and application thereof, the slow-release defoaming material comprises a defoaming agent and a slow-release material wrapping the defoaming agent, and the defoaming agent is an organic silicon defoaming agent; the structure of the sustained-release material at least contains one carboxyl group, and the melting point of the sustained-release material is 64-102 DEG C; the mass ratio of the defoaming agent to the sustained-release material is (0.3-1.5): 1. The slow-release defoaming material is applied to a cement-based material construction process, and the dosage of the slow-release defoaming material is 0.001-0.01% of the mass of a cementing material in the cement-based material. According to the slow-release defoaming material disclosed by the invention, carboxyl in the slow-release material reacts with alkali, so that a defoaming agent is released; the defoaming agent is added to the concrete, so that the concrete is not defoamed at the initial stage of mixing, fresh mixed concrete has better workability, the defoaming agent is slowly released at the later stage, the air content in the concrete is reduced, the strength and durability of the hardened concrete are improved, and the appearance of the hardened concrete can be beautified.
本发明提供了一种缓释型消泡材料及其制备方法和应用，缓释型消泡材料包括消泡剂和包裹消泡剂的缓释材料，消泡剂为有机硅类消泡剂；缓释材料结构中至少含有一个羧基，且上述缓释材料熔点为64℃‑102℃；消泡剂与缓释材料的质量比为(0.3～1.5):1。缓释型消泡材料应用于水泥基材料施工工艺过程中，缓释型消泡材料的用量为上述水泥基材料中胶凝材料质量的0.001％～0.01％。本发明的缓释型消泡材料通过缓释材料中的羧基与碱反应，进而释放出消泡剂；达到混凝土搅拌的初期不消泡，使新拌混凝土具有较好的和易性，而在后期缓慢释放出消泡剂，降低混凝土中的含气量，从而提高硬化混凝土的强度和耐久性，并且可以美化硬化混凝土的外观。
Slow-release defoaming material as well as preparation method and application thereof
The invention provides a slow-release defoaming material as well as a preparation method and application thereof, the slow-release defoaming material comprises a defoaming agent and a slow-release material wrapping the defoaming agent, and the defoaming agent is an organic silicon defoaming agent; the structure of the sustained-release material at least contains one carboxyl group, and the melting point of the sustained-release material is 64-102 DEG C; the mass ratio of the defoaming agent to the sustained-release material is (0.3-1.5): 1. The slow-release defoaming material is applied to a cement-based material construction process, and the dosage of the slow-release defoaming material is 0.001-0.01% of the mass of a cementing material in the cement-based material. According to the slow-release defoaming material disclosed by the invention, carboxyl in the slow-release material reacts with alkali, so that a defoaming agent is released; the defoaming agent is added to the concrete, so that the concrete is not defoamed at the initial stage of mixing, fresh mixed concrete has better workability, the defoaming agent is slowly released at the later stage, the air content in the concrete is reduced, the strength and durability of the hardened concrete are improved, and the appearance of the hardened concrete can be beautified.
本发明提供了一种缓释型消泡材料及其制备方法和应用，缓释型消泡材料包括消泡剂和包裹消泡剂的缓释材料，消泡剂为有机硅类消泡剂；缓释材料结构中至少含有一个羧基，且上述缓释材料熔点为64℃‑102℃；消泡剂与缓释材料的质量比为(0.3～1.5):1。缓释型消泡材料应用于水泥基材料施工工艺过程中，缓释型消泡材料的用量为上述水泥基材料中胶凝材料质量的0.001％～0.01％。本发明的缓释型消泡材料通过缓释材料中的羧基与碱反应，进而释放出消泡剂；达到混凝土搅拌的初期不消泡，使新拌混凝土具有较好的和易性，而在后期缓慢释放出消泡剂，降低混凝土中的含气量，从而提高硬化混凝土的强度和耐久性，并且可以美化硬化混凝土的外观。
Slow-release defoaming material as well as preparation method and application thereof
一种缓释型消泡材料及其制备方法和应用
SHAN GUANGCHENG (author) / QIAO MIN (author) / CHEN JIAN (author) / GAO NANXIAO (author) / ZENG LUPING (author) / SHEN FEI (author) / YANG TAO (author) / ZHAO SHUANG (author) / ZHU BOSONG (author) / RAN QIANPING (author)
2022-11-08
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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