阅读说明：本技术 一种水性聚氨酯涂料在风电叶片上的施工方法 (Construction method of waterborne polyurethane coating on wind power blade ) 是由 罗永键 刘正伟 于 2020-05-21 设计创作，主要内容包括：本发明公开了一种水性聚氨酯涂料在风电叶片上的施工方法,通过在叶片未灌注树脂前的模具内表面涂装水性聚氨酯涂料,利用上一支叶片模具脱模时的余温或模具的加热设备进行加热,加速水性聚氨酯涂料的干燥,其主要施工流程是在叶片模具内涂装脱模剂；待脱模剂干燥后,在涂有脱模剂的叶片阴模内直接涂装水性聚氨酯涂料；待水性聚氨酯涂料指压干后,在涂料表面铺设玻璃纤维布；然后对叶片阴模进行真空灌注环氧树脂,加热固化；待环氧树脂固化结束后,叶片即可从阴模脱模。本发明提供的水性聚氨酯涂料在风电叶片上的施工方法,操作简单快速可靠、大大提高了风电叶片的生产效率,并节省了人力物力与能源。(The invention discloses a construction method of a waterborne polyurethane coating on a wind power blade, which comprises the steps of coating the waterborne polyurethane coating on the inner surface of a mold before resin is not poured into the blade, heating by using the residual temperature of the previous blade mold during demolding or heating equipment of the mold, accelerating the drying of the waterborne polyurethane coating, wherein the main construction process is to coat a demolding agent in the blade mold; after the release agent is dried, directly coating a waterborne polyurethane coating in the blade female die coated with the release agent; after the waterborne polyurethane coating is dried by finger pressing, laying glass fiber cloth on the surface of the coating; then, vacuum epoxy resin is poured into the blade female die, and heating and curing are carried out; and after the epoxy resin is cured, the blade can be demoulded from the female die. The construction method of the waterborne polyurethane coating on the wind power blade, provided by the invention, is simple, rapid and reliable to operate, greatly improves the production efficiency of the wind power blade, and saves manpower, material resources and energy.)

1. A construction method of a water-based polyurethane coating on a wind power blade is characterized in that the water-based polyurethane coating is coated on the inner surface of a mold before resin is poured into the blade, and the water-based polyurethane coating is heated by using the residual temperature of the mold before the front blade is demolded or by using heating equipment of the mold, so that the drying of the water-based polyurethane coating is accelerated.

2. The construction method of the waterborne polyurethane coating on the wind power blade as claimed in claim 1, wherein the main construction process flow comprises:

(1) coating a release agent, namely coating the release agent on the inner surface of the blade female die;

(2) coating a water polyurethane coating, and directly coating the water polyurethane coating in the blade female die coated with the release agent after the release agent is dried;

(3) laying glass fiber cloth, and laying the glass fiber cloth on the surface of the coating after the waterborne polyurethane coating is dry by finger pressing;

(4) vacuum pouring epoxy resin, and heating and curing;

(5) and (4) demolding the blade, wherein the blade can be demolded from the female die after the epoxy resin is cured.

3. The construction method of the waterborne polyurethane coating on the wind power blade as claimed in claim 1 or 2, wherein the temperature of the waterborne polyurethane coating when being dried by the mold residual temperature is between 15 and 70 ℃.

4. The method for applying the waterborne polyurethane coating to the wind power blade as claimed in claim 1, wherein a protective layer with better weather resistance can be coated in the female die coated with the release agent.

5. The construction method of the waterborne polyurethane coating on the wind power blade as claimed in claim 1, wherein after the waterborne polyurethane coating is coated, a primer can be coated.