阅读说明：本技术 一种可吸音的保温涂料 (Heat-insulation coating capable of absorbing sound ) 是由 张威劲 于 2020-12-17 设计创作，主要内容包括：本发明属于涂料配方技术领域,特别涉及一种可吸音的保温涂料,由以下质量百分含量制得：15-30%天然麻纤维、5-7%硅酸钠、6-8%硅藻泥、4-5%钛白粉、20-25%树脂、0.7-1.5%粘接剂、0.6-1.3%消泡剂、0.7-1.2%成膜助剂、28-31%去离子水。本发明通过钛白粉的加入可以增加所述保温涂料的耐腐蚀性,且能够增加所述保温涂料整体的配方结构的稳定性；本发明通过硅藻泥的加入能够有效的抑制所述保温涂料有毒气体的挥发,达到了环保的效果；本发明通过成膜助剂成膜助剂由丙烯酸、甲基丙烯酸甲酯、丙烯酸丁酯、苯乙烯、丙烯酸异辛酯、有机硅中间体和BPO混合反应制得；可以使得所述保温涂料导热系数为0.034.5W/m·K,较小的导热系数是该涂料隔热保温优异的关键因素,达到保温的效果。(The invention belongs to the technical field of coating formulas, and particularly relates to a sound-absorbable heat-insulation coating which is prepared from the following components in percentage by mass: 15-30% of natural fibrilia, 5-7% of sodium silicate, 6-8% of diatom ooze, 4-5% of titanium dioxide, 20-25% of resin, 0.7-1.5% of adhesive, 0.6-1.3% of defoaming agent, 0.7-1.2% of film-forming auxiliary agent and 28-31% of deionized water. According to the invention, the corrosion resistance of the heat-insulating coating can be improved by adding the titanium dioxide, and the stability of the overall formula structure of the heat-insulating coating can be improved; according to the invention, the volatilization of toxic gas of the heat-insulating coating can be effectively inhibited by adding the diatom ooze, so that the environment-friendly effect is achieved; the film-forming aid is prepared by mixing and reacting acrylic acid, methyl methacrylate, butyl acrylate, styrene, isooctyl acrylate, an organic silicon intermediate and BPO; the thermal conductivity coefficient of the thermal insulation coating is 0.034.5W/m.K, and a smaller thermal conductivity coefficient is a key factor of the coating for excellent thermal insulation, so that the thermal insulation effect is achieved.)

1. The heat-insulating coating capable of absorbing sound is characterized in that: the composition is prepared from the following components in percentage by mass: 15-30% of natural fibrilia, 5-7% of sodium silicate, 6-8% of diatom ooze, 4-5% of titanium dioxide, 20-25% of resin, 0.7-1.5% of adhesive, 0.6-1.3% of defoaming agent, 0.7-1.2% of film-forming auxiliary agent and 28-31% of deionized water.

2. The sound-absorbable heat-insulation coating as claimed in claim 1, wherein: the composition is prepared from the following components in percentage by mass: 30% of natural fibrilia, 5% of sodium silicate, 6% of diatom ooze, 4% of titanium dioxide, 20% of resin, 0.7% of adhesive, 0.6% of defoaming agent, 0.7% of film-forming assistant and 33% of deionized water.

3. The sound-absorbable heat-insulation coating as claimed in claim 1, wherein: the composition is prepared from the following components in percentage by mass: 20% of natural fibrilia, 7% of sodium silicate, 8% of diatom ooze, 5% of titanium dioxide, 22% of resin, 1.5% of adhesive, 1.3% of defoaming agent, 1.2% of film-forming assistant and 29% of deionized water.

4. A sound-absorbable thermal insulating paint as claimed in any one of claims 1 to 3, wherein: the defoaming agent is emulsified silicone oil.

5. A sound-absorbable thermal insulating paint as claimed in any one of claims 1 to 3, wherein: the film-forming additive is prepared by mixing and reacting acrylic acid, methyl methacrylate, butyl acrylate, styrene, isooctyl acrylate, an organic silicon intermediate and BPO.

Technical Field

The invention belongs to the technical field of coating formulas, and particularly relates to a sound-absorbable heat-insulation coating.

Background

The sound-absorbing coating, also called sound-absorbing spraying, is a cotton-shaped coating material which is prepared by taking biological fibers, mineral fibers and the like as main raw materials, combining other fire-proofing agents, moisture-proofing agents, enzyme-proofing agents and the like, spraying the mixture together with adhesive through a special machine, and attaching the mixture to an inner roof or a wall surface to form an apparent porous cotton-shaped coating material with the thickness of 2-10 mm.

The coating has sound absorption, appearance and mechanical property, and is suitable for indoor ceiling parts of halls with large indoor surfaces and high roofs and wall surfaces with a certain height or more. Such as sound absorption treatment of indoor ceiling parts of theaters, meeting places, markets, corridors and the like. For locations where decorativeness is high and sound absorption is desired, sound absorbing coatings are most suitable.

The existing sound-absorbing coating has poor heat-insulating effect, is easy to corrode and fall off by a damp and dark place, and has poor sound-absorbing effect, so that the sound-absorbing heat-insulating coating which is not easy to corrode and fall off, has good heat-insulating effect, is environment-friendly and has obvious economic effect needs to be researched urgently.

Disclosure of Invention

Technical problem to be solved

In order to overcome the defects that the existing sound-absorbing coating has poor heat-insulating effect, is easy to corrode and fall off in a humid and dark place and has poor sound-absorbing effect, the invention provides the sound-absorbing heat-insulating coating which is not easy to corrode and fall off, has good heat-insulating effect, is environment-friendly and has obvious economic effect.

(II) technical scheme

The invention is realized by the following technical scheme: the invention provides a sound-absorbable heat-insulation coating which is prepared from the following components in percentage by mass: 15-30% of natural fibrilia, 5-7% of sodium silicate, 6-8% of diatom ooze, 4-5% of titanium dioxide, 20-25% of resin, 0.7-1.5% of adhesive, 0.6-1.3% of defoaming agent, 0.7-1.2% of film-forming auxiliary agent and 28-31% of deionized water.

Further, the composition is prepared from the following components in percentage by mass: 30% of natural fibrilia, 5% of sodium silicate, 6% of diatom ooze, 4% of titanium dioxide, 20% of resin, 0.7% of adhesive, 0.6% of defoaming agent, 0.7% of film-forming assistant and 33% of deionized water.

Further, the composition is prepared from the following components in percentage by mass: 20% of natural fibrilia, 7% of sodium silicate, 8% of diatom ooze, 5% of titanium dioxide, 22% of resin, 1.5% of adhesive, 1.3% of defoaming agent, 1.2% of film-forming assistant and 29% of deionized water.

Further, the defoaming agent is emulsified silicone oil.

Furthermore, the film-forming additive is prepared by mixing and reacting acrylic acid, methyl methacrylate, butyl acrylate, styrene, isooctyl acrylate, an organic silicon intermediate and BPO.

(III) advantageous effects

Compared with the prior art, the invention has the following beneficial effects:

according to the invention, the corrosion resistance of the heat-insulating coating can be improved by adding the titanium dioxide, and the stability of the overall formula structure of the heat-insulating coating can be improved; according to the invention, the volatilization of toxic gas of the heat-insulating coating can be effectively inhibited by adding the diatom ooze, so that the environment-friendly effect is achieved; the film-forming aid is prepared by mixing and reacting acrylic acid, methyl methacrylate, butyl acrylate, styrene, isooctyl acrylate, an organic silicon intermediate and BPO; the thermal conductivity coefficient of the thermal insulation coating is 0.034.5W/m.K, and a smaller thermal conductivity coefficient is a key factor of excellent thermal insulation of the coating, so that the thermal insulation effect is achieved; therefore, the effects of difficult corrosion and shedding, good heat preservation effect, environmental protection and remarkable economic effect are achieved.

Detailed Description

In the technical scheme:

in order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Example 1

A sound-absorbable heat-insulation coating is prepared from the following components in percentage by mass: 30% of natural fibrilia, 5% of sodium silicate, 6% of diatom ooze, 4% of titanium dioxide, 20% of resin, 0.7% of adhesive, 0.6% of defoaming agent, 0.7% of film-forming assistant and 33% of deionized water;

firstly, 5% of sodium silicate, 6% of diatom ooze, 4% of titanium dioxide, 20% of resin, 0.6% of defoaming agent, 0.7% of film forming additive and 33% of deionized water are placed into a mixing reaction kettle to be stirred for about 10-15min, 30% of natural fibrilia and 0.7% of adhesive are placed into the mixing reaction kettle, and stirring is carried out for 5-10min, so that the sound-absorbing heat-insulating coating is prepared.

The detected free formaldehyde is 8.39mg/kg, and the content of volatile organic compounds is 108.6 g/l;

the sound absorption coefficient of the coating is determined to be more than or equal to 20% by adopting a standing wave tube method, and the heat-insulating coating is qualified within the range of 125HZ-4000 HZ.

Example 2

A sound-absorbable heat-insulation coating is prepared from the following components in percentage by mass: 20% of natural fibrilia, 7% of sodium silicate, 8% of diatom ooze, 5% of titanium dioxide, 22% of resin, 1.5% of adhesive, 1.3% of defoaming agent, 1.2% of film-forming assistant and 29% of deionized water.

Firstly, placing 7% of sodium silicate, 8% of diatom ooze, 5% of titanium dioxide, 25% of resin, 1.3% of defoaming agent, 1.2% of film-forming auxiliary agent and 31% of deionized water into a mixing reaction kettle, stirring for about 10-15min, placing 5% of natural fibrilia and 1.5% of adhesive into the mixing reaction kettle, and stirring for 5-10min to obtain the sound-absorbing heat-insulating coating.

The detected free formaldehyde is 7.49mg/kg, and the content of volatile organic compounds is 106.6 g/l;

the sound absorption coefficient of the coating is determined to be more than or equal to 20% by adopting a standing wave tube method, and the heat-insulating coating is qualified within the range of 125HZ-4000 HZ.

Compared with the traditional synthetic fiber material, the natural fibrilia is a renewable material and can be used for building structures, noise control engineering and acoustic treatment, the natural fiber is mainly used in the building industry due to good hygroscopicity, and if the natural fiber can also be used for sound control, the market application prospect of the material is greatly improved.

The diatom ooze is an interior wall environment-friendly decorative wall material taking diatomite as a main raw material. It has the functions of eliminating formaldehyde, purifying air, regulating humidity, releasing negative oxygen ion, preventing fire, retarding fire, self-cleaning wall, sterilizing, deodorizing, etc. Can improve the environmental protection property of the sound-absorbing coating and reduce the content of volatile organic compounds and free formaldehyde.

The titanium dioxide is soft odorless and tasteless white powder, has strong covering power and tinting strength, and has a melting point of 1560-1580 ℃. It is insoluble in water, diluted inorganic acid, organic solvent and oil, slightly soluble in alkali and soluble in concentrated sulfuric acid. When the color changes to yellow under heat, the color changes to white after cooling. The rutile (R) density was 4.26g/cm3, and the refractive index was 2.72. The R type titanium dioxide has the characteristics of good weather resistance, water resistance and difficult yellowing, but the whiteness is slightly poor. Anatase (form A) has a density of 3.84g/cm3 and a refractive index of 2.55. The type A titanium dioxide has poor light resistance and poor weather resistance, but has better whiteness. In recent years, nanometer-grade ultrafine titanium dioxide (usually 10-50 nm) has been found to have semiconductor properties, high stability, high transparency, high activity, high dispersibility, no toxicity and color effect.

The film-forming additive is prepared by mixing and reacting acrylic acid, methyl methacrylate, butyl acrylate, styrene, isooctyl acrylate, an organic silicon intermediate and BPO; the thermal conductivity coefficient of the thermal insulation coating can be 0.034.5W/m.K, and a smaller thermal conductivity coefficient is a key factor for excellent thermal insulation of the coating.

According to the invention, the corrosion resistance of the heat-insulating coating can be improved by adding the titanium dioxide, and the stability of the overall formula structure of the heat-insulating coating can be improved; according to the invention, the volatilization of toxic gas of the heat-insulating coating can be effectively inhibited by adding the diatom ooze, so that the environment-friendly effect is achieved; the film-forming aid is prepared by mixing and reacting acrylic acid, methyl methacrylate, butyl acrylate, styrene, isooctyl acrylate, an organic silicon intermediate and BPO; the thermal conductivity coefficient of the thermal insulation coating is 0.034.5W/m.K, and a smaller thermal conductivity coefficient is a key factor of excellent thermal insulation of the coating, so that the thermal insulation effect is achieved; therefore, the effects of difficult corrosion and shedding, good heat preservation effect, environmental protection and remarkable economic effect are achieved.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.