环氧地坪质量的好坏有很多因素
环氧地坪目前在国内是比较火的,在很多场合我们都可以看到它,很多工厂企业也在使用,其优点很多,影响环氧地坪的好坏有很多,下面我们就来给大家介绍下。1、基层平整度及强度不符合施工要求。施工基层应平整、粗糙、清除浮尘,强度应到达C20以上,并干净、密实。由于环氧树脂涂料的成膜不是很厚,平整度直接影响环氧树脂自流平地坪的施工质量。强度不高、密实度不够,造成基层本身就存在很多空隙,很容易吸潮、吸附空气,同时也是基层含水率高的原因之一,所以控制基层质量的好坏应摆在首位。
Epoxy floor is relatively hot in China at present, we can see it on many occasions, many factories and enterprises are also using it, its advantages, affect the quality of epoxy floor there are many, we will introduce to you next.
1. The flatness and strength of the base do not meet the construction requirements. The construction base should be smooth, rough and remove floating dust. The strength should reach more than C20, and it should be clean and dense. Because the film formation of epoxy resin coating is not very thick, the smoothness directly affects the construction quality of epoxy resin self-leveling floor. The strength is not high, compactness is not enough, resulting in the base itself there are many gaps, it is easy to absorb moisture, air adsorption, but also one of the reasons for the high moisture content of the base, so the quality control of the base should be placed in the first place.
2、混凝土基层含水率高。环氧树脂自流平地坪基层含水率不得大于9%,否则,水气释出,会造成涂膜鼓起。
2. The moisture content of the concrete base is high. The moisture content of epoxy resin self-leveling base should not exceed 9%, otherwise, the water gas will be released and the film will bulge.
3、混凝土基层表面处理不到位,基层表面太光滑,打磨的粗糙度不够,从而影响到涂层与基层的附着力,是导致涂膜空鼓凸起的原因之一。
3. The surface treatment of concrete base is not in place, the surface of base is too smooth, and the roughness of grinding is not enough, thus affecting the adhesion between coating and base, which is one of the reasons for the hollow bulge of coating film.
4、环氧底漆没有对基层进行有效涂刷,环氧底漆配合比不当,造成粘度高,渗透力差,底漆未能很好的渗人基层的内部作为接着层,基层的附着力差,涂膜的抗张强度大大超过基层强度,从而造成基层与涂膜界面的剥离,也是导致涂膜空鼓凸起的原因之一。
4. Epoxy primer does not effectively brush the base, epoxy primer improper mix, resulting in high viscosity, poor penetration, primer can not penetrate the base as a good internal layer, the base adhesion is poor, the tensile strength of the coating greatly exceeds the base strength, resulting in the base and the film interface peel off, is also One of the reasons leading to the bulging of paint film.
5、环氧砂浆表层没有处理到位。基层不平,有凹凸,环氧砂浆层打磨时,未能将起壳及起砂起粉部位全部打磨干净,存在漏打现象,直接影响其表观质量。
5. Epoxy mortar surface is not disposed in place. The base is uneven, concave and convex. When the epoxy mortar layer is polished, the shell and the sand and powder parts can not be polished completely. The phenomenon of leakage has a direct impact on its apparent quality.
6、一次涂抹太厚。环氧树脂面漆与固化剂反应,产生大量的热量和气泡的产生,面漆厚度太厚气泡不易释出,在膜下形成气泡,造成出现地面凸起现象。
6. Once applied too thick. The reaction of epoxy resin top coat with curing agent produces a lot of heat and bubbles. The thick bubbles of the top coat are not easy to release, forming bubbles under the film, resulting in the phenomenon of surface bulging.
7、固化剂不符合要求。现市面上固化剂普遍粘度偏高,且在与环氧树脂作用时产生大量的气泡,在固化过程中不断发散,难以消除,在面层上留下痕迹而成为针孔,且配合后面漆流动性不佳,难以自流平,影响环氧树脂表观质量。
7, curing agent does not meet the requirements. The curing agent on the market generally has high viscosity, and produces a large number of bubbles when it acts with the epoxy resin. It is difficult to eliminate the bubbles during the curing process, leaving traces on the surface and becoming pinholes, and it is difficult to leveling with the poor fluidity of the paint behind, affecting the apparent quality of the epoxy resin.
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