CN103965720A - Reflective insulation antibacterial composite film material - Google Patents

Abstract

The invention discloses a reflective insulation antibacterial composite film material which is characterized in that based on the total weight of a coating, the material comprises the following components: 40-50% of aqueous acrylic resin, 10-20% of water, 10-15% of silica powder, 5-8% of expanded perlite, 3-5% of hollow microballoon sphere, 2-5% of vermiculite, 3-5% of sericite powder, 5-8% of coal ash, 1-2% of antifreeze agent, 4-6% of titanium dioxide, 4-6% of barium sulfate, 0.1-0.15% of aluminum titanate, 0.1-0.15% of silicon carbide, 0.1-0.15% of cordierite, 0.3-0.8% of defoaming agent, 0.1-0.15% of antibacterial compound, 0.1-0.4% of dispersing agent, 1-1.5% of alkali swelling thickening agent, 0.1-0.2% of cellulose thickening agent, 0.1-0.15% of moistening agent and 0.5-1% of filming additive.

Description

The antibacterial composite film material of a kind of reflective insulation

Technical field

The present invention relates to a kind of coating, the antibacterial composite film material of especially a kind of reflective insulation.

Background technology

Along with constantly warming of the earth, excessive sun heat radiation and strong urban heat land effect, allow people stand hard to bear high temperature.Although the mankind have taked all ways to overcome the trouble that the sun brings, have consumed a large amount of electric energy and freonll-11 so that people obtain nice and cool in, further aggravated again the tropical island effect in city.Thermal insulating coating is to reduce the thermal accumlation of coated article inside by mechanism such as obstruct, reflection, radiation, thereby reaches energy-conservation a kind of functional coating with improving the object such as Working environment or safety.Thermal insulating coating, because of the advantage such as its economy, easy to use and insulation effect be reliable, progressively becomes new Research on Energy Saving.Since the 80's of 20th century, construction industry, petroleum industry, transport trade, weapon industry etc. develop rapidly, require to use novel thermal insulating coating, to reduce the surface temperature of object, stop thermal conduction, improve Working environment, improve security.At present, some countries of the U.S. and West Europe have developed such coating, and have obtained application in many fields of military and civilian.

Thermal insulating coating is a kind of accumulation that reduces coated article internal heat by mechanism such as obstruct, reflection, radiation, thereby reach energy-conservation and improve Working environment or safety etc. object functional coating, mainly comprise isolation-type thermal insulating coating, reflection type thermal insulation coating and Radiation Heat-insulated Paint.Wherein, the most with practical value with reflection type thermal insulation coating.But, still exist problems for the research of reflection type thermal insulation coating at present: reflection type thermal insulation coating is used substantially or solvent-applied type system in metallic surface, need the water-based system reflection type thermal insulation coating of exploitation for metallic surface; Reflection filler price for the preparation of reflection type thermal insulation coating is generally very high, causes its cost higher; Also there is no at present the testing method of standard about the performance of film reflection light and heat; The heat-proof quality of thermal insulating coating needs further to be improved etc.Therefore, the object of the invention is to develop a kind of water-base reflecting heat-islating paint for metallic surface, under the prerequisite that improves its heat-proof quality, reduce costs, make it meet heat insulation, weather-proof and decoration functions simultaneously, reach the effect of energy-conserving and environment-protective.

Summary of the invention

Technical problem solved by the invention is to provide a kind of reflective insulation antibacterial composite film material, to solve the shortcoming in above-mentioned background technology.

Technical scheme of the present invention is: the antibacterial composite film material of a kind of reflective insulation, and taking the gross weight of described coating as benchmark, its component comprises: water-borne acrylic resin 40%-50%; Water 10%-20%; Silicon powder 10%-15%; Pearlstone 5%-8%; Hollow ceramic microballoon 3%-5%; Vermiculite power 2%-5%; Sericite in powder 3%-5%; Flyash 5%-8%; Antifreezing agent 1%-2%; Titanium dioxide 4% ~ 6%; Barium sulfate 4% ~ 6%; Aluminium titanates 0.1%-0.15%; Silicon carbide 0.1%-0.15%; Trichroite 0.1%-0.15%; Defoamer 0.3%-0.8%; Antibacterial mixture 0.1%-0.15%; Dispersion agent 0.1%-0.4%; The swelling thickening material 1%-1.5% of alkali, cellulose thickener 0.1%-0.2%; Wetting agent 0.1%-0.15%; Film coalescence aid 0.5%-1%.

Described SILICA FUME particle diameter is between 0.15-0.20 μ m, and its surface is through modification.

Described hollow ceramic microspherulite diameter is between 10 microns-2000 microns.

The grain diameter of described flyash, vermiculite power is all between 1 micron-2000 microns.

The grain diameter of described pearlstone is between 0.1 millimeter of-10 millimeters of rice.

Described pearlstone is one or more the combination being selected from open ball, obturator-type ball, Optimization-type, surperficial clinkering type pearlstone.

The preparation method of described antibacterial mixture is:

Hops, Herba Eupatorii Odorati, Root or all-grass of Cairo Morningglory, Thymus vulgaris, Rhizoma Alpiniae Officinarum, garlic, tarragon, water are mixed according to the mass fraction proportioning of 15-20:10-15:10-15: 12-15:8-10:8-10:5-7:15-20, add the cellulase of (unit of activity of 8 parts is 100U) to carry out enzymolysis, enzyme digestion reaction temperature is 25 DEG C, the enzyme digestion reaction time is 1 hour, filters and obtains Chinese herbal medicine fluid; After removing slag, adding concentration is 70% aqueous ethanolic solution again, again by solidliquid mixture ultrasonic-assisted extraction, ultrasonic extraction condition: ultrasonic temperature is that 50 DEG C, ultrasonic frequency are that 30kHz, supersound extraction time are 2 hours, then by solidliquid mixture suction filtration under 35kPa vacuum condition, get filtrate underpressure distillation under 30kPa vacuum, 55 DEG C of conditions and obtain plant-sourced bacteriostatics.

The antibacterial composite film material of reflective insulation, preparation method is as follows:

1) water is dropped into a mixing bowl, under 300-500 rev/min of speed, add cellulose thickener;

2) stir after 10 minutes and add dispersion agent, defoamer, wetting agent, silicon powder, under 800-1200 rev/min of speed, disperse 30 minutes, sand milling, is less than 50 microns to fineness;

3) then under 300-500 rev/min of speed, add elastomeric propylene yogurt liquid, antifreezing agent, film coalescence aid, the swelling thickening material of alkali, antibacterial mixture, stir 30 minutes to even;

4) proceed to kneader, under agitation add hollow glass micropearl, pearlstone, vermiculite power, sericite in powder, flyash, barium sulfate, aluminium titanates slowly, in batches, to even; By the above-mentioned each composition mixing melting mixing in two roller mills, temperature is 150 DEG C; Moulding, adopts plastic film blowing machine to extrude blown film, obtains product; Described inflation film manufacturing machine barrel back segment temperature is divided four sections of controls, is controlled at respectively 150 DEG C, and barrel front-end temperature divides four sections of controls, be controlled at respectively 200 DEG C, head temperature divides two sections of controls, is controlled at respectively 210 DEG C, blow-up ratio is 3.0, screw speed 20～40r/min, pulling speed 10～50m/min.

In thermal insulating coating, use hollow glass micropearl as filler, except obtaining the reflected light and thermal-radiating effect as metallic aluminium powder, can also utilize hollow glass micropearl hollow, light weight, feature that thermal conductivity is low, reach the object of trap heat, thereby improve the heat-insulating property of film.Therefore, hollow glass micropearl has concurrently and intercepts composite efficacy heat insulation and that transmitting is heat insulation as filler.Along with the increase of hollow glass micropearl add-on, the heat reflectivity of coating has obvious raising.Found through experiments, if continue to increase the add-on of hollow glass micropearl, will make it be difficult for disperseing, thereby affect the homogeneity of film.

Silicon carbide, mullite, aluminium titanates, trichroite etc. are all low temperature high emissivity materials.In coating, add these high emission materials, just can be as much as possible the ultraviolet luminous energy in the sun power absorbing in coating and lower layer of water mud layer and visible ray and near infrared luminous energy be transferred to heat energy, mode with ir radiation is passed atmosphere infrared window in this wave band, be transmitted into efficiently the outer field zero absolute temperature of atmosphere district, thereby reach the object that reduces temperature.

Due to the enforcement of above technical scheme, the present invention compared with prior art tool has the following advantages:

1. coating of the present invention is by the combination of hollow glass micropearl, pearlstone, vermiculite power and the flyash of specified proportion, reach and hinder light wave, the sound wave of different wave length, the propagation of Thermal Infra-Red, play effect heat insulation, insulation, give traditional external wall elastic galling paint with heat-insulation and heat-preservation function; Meanwhile, in coating, add other auxiliary component to keep decoration and the defencive function of coating.

2. active micro silicon powder surface has one deck coupling agent film as thin as a wafer and firmly, can effectively improve the cohesive force of silicon powder and polymkeric substance, thereby increase loading level, reduce production costs, and effectively improve the mechanical property, heat aging performance, weathering resistance etc. of cured product.There is thin-film material, the environmental protection of sterilization effect and there is fungistatic effect; Harmless to people, animal.In addition, the present invention fills a prescription rationally, and preparation method is simple.

Embodiment

Below in conjunction with specific embodiment, the present invention will be further described in detail, but the invention is not restricted to these embodiment:

Embodiment 1

The antibacterial composite film material of a kind of reflective insulation, taking the gross weight of described coating as benchmark, its component comprises: water-borne acrylic resin 40%; Water 10%; Silicon powder 10%; Pearlstone 5%; Hollow ceramic microballoon 3%; Vermiculite power 2%; Sericite in powder 3%; Flyash 5%; Antifreezing agent 1%; Titanium dioxide 4%; Barium sulfate 4%; Aluminium titanates 0.1%; Silicon carbide 0.1%; Trichroite 0.1%; Defoamer 0.3%; Antibacterial mixture 0.1%; Dispersion agent 0.1%; The swelling thickening material 1% of alkali, cellulose thickener 0.1%; Wetting agent 0.1%; Film coalescence aid 0.5%.

Described SILICA FUME particle diameter is between 0.15-0.20 μ m, and its surface is through modification.

Described hollow ceramic microspherulite diameter is between 10 microns-2000 microns.

The grain diameter of described flyash, vermiculite power is all between 1 micron-2000 microns.

The grain diameter of described pearlstone is between 0.1 millimeter of-10 millimeters of rice.

Described pearlstone is one or more the combination being selected from open ball, obturator-type ball, Optimization-type, surperficial clinkering type pearlstone.

The antibacterial composite film material of reflective insulation, preparation method is as follows:

1) water is dropped into a mixing bowl, under 300-500 rev/min of speed, add cellulose thickener;

2) stir after 10 minutes and add dispersion agent, defoamer, wetting agent, silicon powder, under 800-1200 rev/min of speed, disperse 30 minutes, sand milling, is less than 50 microns to fineness;

3) then under 300-500 rev/min of speed, add elastomeric propylene yogurt liquid, antifreezing agent, film coalescence aid, the swelling thickening material of alkali, antibacterial mixture, stir 30 minutes to even;

4) proceed to kneader, under agitation add hollow glass micropearl, pearlstone, vermiculite power, sericite in powder, flyash, barium sulfate, aluminium titanates slowly, in batches, to even; By the above-mentioned each composition mixing melting mixing in two roller mills, temperature is 150 DEG C; Moulding, adopts plastic film blowing machine to extrude blown film, obtains product; Described inflation film manufacturing machine barrel back segment temperature is divided four sections of controls, is controlled at respectively 150 DEG C, and barrel front-end temperature divides four sections of controls, be controlled at respectively 200 DEG C, head temperature divides two sections of controls, is controlled at respectively 210 DEG C, blow-up ratio is 3.0, screw speed 20～40r/min, pulling speed 10～50m/min.

The preparation method of described antibacterial mixture is:

Hops, Herba Eupatorii Odorati, Root or all-grass of Cairo Morningglory, Thymus vulgaris, Rhizoma Alpiniae Officinarum, garlic, tarragon, water are mixed according to the mass fraction proportioning of 15-20:10-15:10-15: 12-15:8-10:8-10:5-7:15-20, add the cellulase of (unit of activity of 8 parts is 100U) to carry out enzymolysis, enzyme digestion reaction temperature is 25 DEG C, the enzyme digestion reaction time is 1 hour, filters and obtains Chinese herbal medicine fluid; After removing slag, adding concentration is 70% aqueous ethanolic solution again, again by solidliquid mixture ultrasonic-assisted extraction, ultrasonic extraction condition: ultrasonic temperature is that 50 DEG C, ultrasonic frequency are that 30kHz, supersound extraction time are 2 hours, then by solidliquid mixture suction filtration under 35kPa vacuum condition, get filtrate underpressure distillation under 30kPa vacuum, 55 DEG C of conditions and obtain plant-sourced bacteriostatics.

There is thin-film material, the environmental protection of sterilization effect and there is fungistatic effect; Harmless to people, animal.In addition, the present invention fills a prescription rationally, and preparation method is simple.

With reference to U.S. army mark MIL-E-46136, prepare black enamel on-gauge plate, utilize air-conditioning that room temperature is regulated to 28 DEG C, the water-based sun-fever reflective heat-insulation paint (individual layer that uses land surface pyrometer to obtain this research, thickness is 160 um) mensuration Solar reflectance, calculate, result is suc as formula shown in (3).Present stage reflective heat-insulation paint advanced level generally in 90% left and right, the heat reflectivity of the thermal insulating coating of this research preparation is 92%, has reached the advanced level of equivalents.

Weather resistance is tested with reference to GB/T 9276-1996, and shock-resistant test is with reference to GB/ T 1732-93, and hardness of film is tested with reference to GB/T 6739-1996, and coating flexility is measured with reference to GB/ T1731-93, and coating thickness is measured with reference to GB 1764-79.

Coating of the present invention, in the time of construction, requires building wall to want water in advance mud putty to criticize flat, dry, and brushing back cover coating 1-2 road is dry.Then, the coating of the present invention of constructing, method can be for spraying, throwing are coated with, bullet is coated with, and thickness is that 2-3 millimeter is advisable, and then carries out roll-in with grain roller at once, forms uniform decorative pattern; After complete drying, can brush coloured finish paint or clear finish.

Above-described embodiment only, for explanation technical conceive of the present invention and feature, can not limit the scope of the invention with this.All equivalences that spirit is done according to the present invention change or modify, within all should being encompassed in protection scope of the present invention.

Claims (7)

1. the antibacterial composite film material of reflective insulation, is characterized in that: taking the gross weight of described coating as benchmark, its component comprises: water-borne acrylic resin 40%-50%; Water 10%-20%; Silicon powder 10%-15%; Pearlstone 5%-8%; Hollow ceramic microballoon 3%-5%; Vermiculite power 2%-5%; Sericite in powder 3%-5%; Flyash 5%-8%; Antifreezing agent 1%-2%; Titanium dioxide 4% ~ 6%; Barium sulfate 4% ~ 6%; Aluminium titanates 0.1%-0.15%; Silicon carbide 0.1%-0.15%; Trichroite 0.1%-0.15%; Defoamer 0.3%-0.8%; Antibacterial mixture 0.1%-0.15%; Dispersion agent 0.1%-0.4%; The swelling thickening material 1%-1.5% of alkali, cellulose thickener 0.1%-0.2%; Wetting agent 0.1%-0.15%; Film coalescence aid 0.5%-1%.

2. the antibacterial composite film material of reflective insulation according to claim 1, is characterized in that: described SILICA FUME particle diameter is between 0.15-0.20 μ m, and its surface is through modification; The preparation method of described antibacterial mixture is:

Hops, Herba Eupatorii Odorati, Root or all-grass of Cairo Morningglory, Thymus vulgaris, Rhizoma Alpiniae Officinarum, garlic, tarragon, water are mixed according to the mass fraction proportioning of 15-20:10-15:10-15: 12-15:8-10:8-10:5-7:15-20, add the cellulase of (unit of activity of 8 parts is 100U) to carry out enzymolysis, enzyme digestion reaction temperature is 25 DEG C, the enzyme digestion reaction time is 1 hour, filters and obtains Chinese herbal medicine fluid; After removing slag, adding concentration is 70% aqueous ethanolic solution again, again by solidliquid mixture ultrasonic-assisted extraction, ultrasonic extraction condition: ultrasonic temperature is that 50 DEG C, ultrasonic frequency are that 30kHz, supersound extraction time are 2 hours, then by solidliquid mixture suction filtration under 35kPa vacuum condition, get filtrate underpressure distillation under 30kPa vacuum, 55 DEG C of conditions and obtain plant-sourced bacteriostatics.

3. the antibacterial composite film material of reflective insulation according to claim 1, is characterized in that: described hollow ceramic microspherulite diameter is between 10 microns-2000 microns.

4. the antibacterial composite film material of reflective insulation according to claim 1, is characterized in that: the grain diameter of described flyash, vermiculite power is all between 1 micron-2000 microns.

5. the antibacterial composite film material of reflective insulation according to claim 1, is characterized in that: the grain diameter of described pearlstone is between 0.1 millimeter of-10 millimeters of rice.

6. external wall elastic galling paint according to claim 1, is characterized in that: described pearlstone is one or more the combination being selected from open ball, obturator-type ball, Optimization-type, surperficial clinkering type pearlstone.

7. the antibacterial composite film material of reflective insulation as claimed in claim 1, is characterized in that preparation method is as follows:

1) water is dropped into a mixing bowl, under 300-500 rev/min of speed, add cellulose thickener;

2) stir after 10 minutes and add dispersion agent, defoamer, wetting agent, silicon powder, under 800-1200 rev/min of speed, disperse 30 minutes, sand milling, is less than 50 microns to fineness;

3) then under 300-500 rev/min of speed, add elastomeric propylene yogurt liquid, antifreezing agent, film coalescence aid, the swelling thickening material of alkali, antibacterial mixture, stir 30 minutes to even;

4) proceed to kneader, under agitation add hollow glass micropearl, pearlstone, vermiculite power, sericite in powder, flyash, barium sulfate, aluminium titanates slowly, in batches, to even; By the above-mentioned each composition mixing melting mixing in two roller mills, temperature is 150 DEG C; Moulding, adopts plastic film blowing machine to extrude blown film, obtains product; Described inflation film manufacturing machine barrel back segment temperature is divided four sections of controls, is controlled at respectively 150 DEG C, and barrel front-end temperature divides four sections of controls, be controlled at respectively 200 DEG C, head temperature divides two sections of controls, is controlled at respectively 210 DEG C, blow-up ratio is 3.0, screw speed 20～40r/min, pulling speed 10～50m/min.