Coating composition for greenhouse and method of forming coating film using the same

Abstract

A paint composition for a vinyl greenhouse is provided to control the inner temperature of the green house to a moderate level by blocking the input of heat energy inside the greenhouse when painted on the outer side of a greenhouse finishing material. A paint composition for a vinyl greenhouse includes 30-70 wt% of a pigment; 3-25 wt% of a water-soluble binder manufactured by emulsifying starch; 0.1-0.7 wt% of a dispersant; 0.01-0.3 wt% of a foaming agent; 0.01-0.3 wt% of a moisturizing agent; 0.1-1 wt% of a viscoelasticity controller; 0.1-2 wt% of a pH controller; 0.01-1 wt% o a silane derivative; and residual water. A forming method of a coating includes a step of manufacturing the paint composition; a step of spreading the paint composition on an elastic substrate including a polyethylene film and a polyvinyl film; and a step of drying the spread material.

Description

[0001] Related Application Cross Reference [0002] This application claims priority to Korean Patent Application No. 2012-0019874 filed on Feb. 27, 2012 at the Korean Intellectual Property Office (KIPO), the entire contents of which are incorporated herein by reference. technical field [0003] Exemplary embodiments of the present invention relate to a coating composition for a greenhouse and a method of manufacturing a coating film using the coating composition. In particular, exemplary embodiments of the present invention relate to a method of effectively shielding the heat of the sun to provide a suitable temperature inside a vinyl plastic greenhouse, and a method of manufacturing a coating film using the coating composition. Background technique [0004] In addition to suitable humidity and temperature, sufficient light is usually required for the healthy growth and development of plants, so that plants can fully perform photosynthesis and absorb carbon dioxide, because...

AI Technical Summary

Problems solved by technology

However, the traditional blackout film formed using this coating composition may be difficult to separate from the greenhouse cover, and the traditional blackout coating film can be easily peeled off from the greenhouse after being exposed to a slight rain

For example, although the blackout coating should be removed in winter to ensure sufficient sunlight for plants to carry out photosynthesis, traditional blackout coatings cannot be easily removed from greenhouse covers

In addition, traditional blackout coatings may come off too easily during the summer with a little heavy rain, so that the desired light-blocking effect cannot be obtained

[0009] When the coating composition additionally includes a white pigment, such as titanium dioxide or a plastic polymer pigment, to enhance the light-shielding effect, it may generate materials that have adverse effects on the environment, and the coating film formed using this coating composition is still undesirably shades the sun

In addition, even though the coating composition can be easily applied to the hard surface of the greenhouse, it cannot form properly on the surface of the flexible or soft greenhouse.

In addition, when a coating film is formed by coating the coating composition on a flexible greenhouse surface, the coating film cannot ensure sufficient durability

[0010] Conventional coating compositions and conventional water-soluble paints cannot be properly applied to vinyl surfaces due to the surface tension or flexibility of vinyl, and they tend to peel off vinyl surfaces easily