Functional cotton spray composition, method for producing the same, and building material using the same

Abstract

A functional cotton spray composition includes: 100 parts by weight of cotton fibers having a length of 3 mm or less; 0.5 to 5 parts by weight of a phase change material; 0.5 to 1 parts by weight of a titanium dioxide photoactive catalyst; 0.5 to 2 parts by weight of at least one natural pigment selected from the group consisting of a pine needle powder, a green tea powder, a mugwort powder, an indigo plant powder, a gardenia powder, a charcoal powder and a yellow soil powder; 0.5 to 5 parts by weight of a dispersant; 5 to 20 parts by weight of a viscosity improver; 10 to 20 parts by weight of an organic flame retardant; 5 to 15 parts by weight of an inorganic flame retardant; 0.5 to 3 parts by weight of an antimicrobial and antifungal agent; and 300 to 600 parts by weight of viscosity-controlling water.

Description

FIELD OF THE INVENTION[0001]The present invention relates to a functional cotton spray composition which is mainly composed of short cotton fibers generated when processing an environmentally-friendly raw cotton material or cotton fibers and which is added with not only a microcapsule type phase change material capable of effectively storing the thermal energy transferred to the cotton spray composition during a heating or cooling process so that a heat retention effect or a cold energy retention effect can last for more than a specified time period after the heating or cooling process but also an environmentally-friendly material harmless to human bodies and capable of creating a pleasant indoor environment, when the cotton spray composition is used as a construction-purpose spray material or a building material. The present invention is also directed to a method for producing a functional cotton spray composition and a building material using a functional cotton spray composition....

AI Technical Summary

Benefits of technology

[0010]In view of the above-noted problems, it is an object of the present invention to provide a functional cotton spray composition which is composed of short cotton fibers obtained as a by-product when processing a raw cotton or cotton fibers and which is added with not only a phase change material capable of effectively storing the thermal energy transferred to the cotton spray composition during a heating or cooling process so that a heat retention effect or a cold energy retention effect can last for more than a specified time period after the heating or cooling process but also an environmentally-friendly material capable of creating a pleasant living environment when the cotton spray composition is used as a building material in the ceiling, wall or floor of a building.

[0020]a fourth step in which 0.5 to 5 parts by weight of a dispersant and 5 to 20 parts by weight of a viscosity improver are added to the cotton fibers to promote dispersion and binding of the cotton fibers;

[0036]With the present invention, the functional cotton spray composition contains a microcapsule type phase change material. In case where the cotton spray composition is applied to the wall, ceiling or floor of a building, the phase change material contained in the cotton spray composition is changed from a solid phase to a liquid phase under a high temperature condition as in summer, thereby absorbing heat from the ambient air and creating a cool environment. Under a low temperature condition as in winter, the phase change material is changed from a liquid phase to a solid phase, thereby radiating heat to the ambient air and creating a warm environment. In this manner, the cotton spray composition serves to store or radiate heat depending on the change in the thermal condition. Thus, the cotton spray composition shows drastically-improved heat insulation performance and effectively reduces the change in the indoor air temperature, consequently keeping the indoor air temperature as close to a desired temperature as possible. This makes it possible to save the energy required in heating or cooling a room and also to create a highly pleasant living environment.

[0037]Addition of the titanium dioxide photoactive catalyst makes it possible to adsorb the pollutants contained in the indoor air and to purify the indoor air by oxidizing and decomposing the pollutants with its strong antimicrobial, sterilizing and deodorizing power. Addition of the natural pigment such as a pine needle powder, a green tea powder, a mugwort powder, an indigo plant powder, a gardenia powder, a charcoal powder or a yellow soil powder provides an effect of keeping a human body free from harmful substances which may cause a new-house syndrome or an atopic dermatitis and an effect of purifying the indoor air.

[0038]Use of the present cotton spray composition in the building material makes it possible to demonstrate the natural texture inherent in the cotton fibers. Addition of the functional additives makes it possible to provide a building material having the effects of beautiful finishing treatment, illumination, humidity control and flame resistance.

Problems solved by technology

Such spray-coating materials are, however, insufficient in deriving a beautiful color required in a finishing material and demonstrating a compact shape and an interior decoration effect.

The spray-coating materials are harmful to human bodies and cannot be regenerated.

When incinerated or buried, the spray-coating materials may become a cause of environmental pollution.

This may possibly lead to an overheating problem and a heat loss caused by ventilation or door opening and closing.

In case of cooling, failure to evenly control an indoor temperature results in an increased sense of unpleasantness.

If a cooling device is heavily operated to avoid such a situation, it becomes difficult to save energy.

Due to the absence of functional additives, however, the short-fiber composition fails to provide a satisfactory cooling or heating effect when it is used as a building material in the wall, ceiling or floor.

Although some of the additives contained in the short-fiber composition are environmentally friendly, most of them are synthetic materials harmful to human bodies.

Thus, it is still unsatisfactory to use the short-fiber composition as a building material for creating a pleasant living environment.

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