阅读说明：本技术 一种可提高延伸率的玻璃隔热涂膜新材料的制备方法 (Preparation method of novel glass heat-insulating coating material capable of improving elongation ) 是由 金继典 于 2019-07-25 设计创作，主要内容包括：本发明公开了一种可提高延伸率的玻璃隔热涂膜新材料,包括以下成分(按质量百分比计)：热塑性树脂20-30％、聚氨酯细粒15-20％、热稳定剂6.2-6.8％、耐擦伤剂3.3-3.9％、高分子耐热材料4.7-5.6％、石墨粉1.25-2.38％、硅油1.4-2.2％、二硫化钼溶液2.2-3.6％、全氟聚醚1.8-2.4％、助剂3.16-4.24％、有机溶剂为余量；本发明还公开了一种可提高延伸率的玻璃隔热涂膜新材料的制备方法,包括以下步骤：筛选、保压、烧结、电磁搅拌和过滤加热；本发明的配方更加的合理,该玻璃隔热涂膜新材料,能够一定程度的增加水性涂料的热塑性,提高其延伸率,对于基层变形的适应能力好,能够加强水性涂料的抗热和防火性能,可以加强涂料的强度,使其固化后不易遭到损伤。(The invention discloses a novel glass heat-insulating coating film material capable of improving elongation, which comprises the following components in percentage by mass: 20-30% of thermoplastic resin, 15-20% of polyurethane fine particles, 6.2-6.8% of heat stabilizer, 3.3-3.9% of scratch resistant agent, 4.7-5.6% of high-molecular heat resistant material, 1.25-2.38% of graphite powder, 1.4-2.2% of silicone oil, 2.2-3.6% of molybdenum disulfide solution, 1.8-2.4% of perfluoropolyether, 3.16-4.24% of assistant and the balance of organic solvent; the invention also discloses a preparation method of the novel glass heat-insulating coating film material capable of improving the elongation, which comprises the following steps: screening, pressure maintaining, sintering, electromagnetic stirring, filtering and heating; the novel glass heat-insulating coating material is more reasonable in formula, can increase the thermoplasticity of the water-based coating to a certain extent, improves the elongation, has good adaptability to the deformation of a base layer, can enhance the heat resistance and the fire resistance of the water-based coating, and can enhance the strength of the coating, so that the coating is not easily damaged after being cured.)

1. A novel glass heat insulation coating film material capable of improving elongation is characterized by comprising the following components in percentage by mass: 20-30% of thermoplastic resin, 15-20% of polyurethane fine particles, 6.2-6.8% of heat stabilizer, 3.3-3.9% of scratch resistant agent, 4.7-5.6% of high-molecular heat-resistant material, 1.25-2.38% of graphite powder, 1.4-2.2% of silicone oil, 2.2-3.6% of molybdenum disulfide solution, 1.8-2.4% of perfluoropolyether, 3.16-4.24% of assistant and the balance of organic solvent.

2. the novel glass thermal insulation coating film material capable of improving the elongation percentage is characterized by comprising the following components in percentage by mass: 20% of thermoplastic resin, 15% of polyurethane fine particles, 6.2% of heat stabilizer, 3.3% of scratch resistant agent, 4.7% of high-molecular heat resistant material, 1.25% of graphite powder, 1.4% of silicone oil, 2.2% of molybdenum disulfide solution, 1.8% of perfluoropolyether, 3.16% of assistant and the balance of organic solvent.

3. the novel glass thermal insulation coating film material capable of improving the elongation percentage is characterized by comprising the following components in percentage by mass: 24% of thermoplastic resin, 17% of polyurethane fine particles, 6.4% of heat stabilizer, 3.5% of scratch resistant agent, 4.9% of high-molecular heat resistant material, 1.76% of graphite powder, 1.7% of silicone oil, 2.8% of molybdenum disulfide solution, 2% of perfluoropolyether, 3.55% of assistant and the balance of organic solvent.

4. The novel glass thermal insulation coating film material capable of improving the elongation percentage is characterized by comprising the following components in percentage by mass: 28% of thermoplastic resin, 18% of polyurethane fine particles, 6.6% of heat stabilizer, 3.7% of scratch resistant agent, 5.3% of high-molecular heat resistant material, 2.12% of graphite powder, 2% of silicone oil, 3.1% of molybdenum disulfide solution, 2.2% of perfluoropolyether, 3.96% of assistant and the balance of organic solvent.

5. The novel glass thermal insulation coating film material capable of improving the elongation percentage is characterized by comprising the following components in percentage by mass: 30% of thermoplastic resin, 20% of polyurethane fine particles, 6.8% of heat stabilizer, 3.9% of scratch resistant agent, 5.6% of high-molecular heat resistant material, 2.38% of graphite powder, 2.2% of silicone oil, 3.6% of molybdenum disulfide solution, 2.4% of perfluoropolyether, 4.24% of auxiliary agent and the balance of organic solvent.

6. the new material for glass thermal insulation coating film capable of improving elongation percentage as claimed in claim 1, wherein: the thermoplastic resin is any one of polypropylene, polyethylene terephthalate or polyacrylic resin, the heat stabilizer is an organic tin heat stabilizer, and the scratch resistant agent is polyethylene micro wax.

7. the new material for glass thermal insulation coating film capable of improving elongation percentage as claimed in claim 1, wherein: the organic solvent is any one of styrene, perchloroethylene, trichloroethylene or ethylene glycol ether, and the high-molecular heat-resistant material is powder formed by mixing 55% of polycarbonate and 45% of polyimide; the auxiliary agent comprises a tackifier and a defoaming agent, wherein the tackifier is DINP, and the defoaming agent is 104E.

8. A method for preparing a novel material for an elongation-improving glass thermal barrier coating film according to claims 1 to 8, comprising the steps of:

The method comprises the following steps: weighing a certain amount of polyurethane fine particles, mashing the polyurethane fine particles by a mashing machine, sieving the smashed polyurethane fine particles by a 200-400-mesh sieve, maintaining the pressure of the sieved fine particles for 5-10 minutes, discharging gas for 2-5 times in the middle, then putting the fine particles into a sintering furnace for sintering, wherein the temperature rise speed during sintering is 45-55 ℃/h, keeping the temperature at 280-300 ℃ for 65-125 minutes, discharging the fine particles when the temperature is reduced to 130-140 ℃, putting the fine particles into a ball mill for ball milling for 2-4 hours after discharging, and taking out the fine particles and sieving the fine particles by a 600-800-mesh sieve to obtain polyurethane powder;

Step two: introducing thermoplastic resin and polyurethane powder into a container, placing the container on an electromagnetic stirrer, setting the rotating speed of the stirrer at 280-320 revolutions per minute, continuously stirring for 25-40 minutes, then sequentially adding graphite powder and silicone oil, setting the rotating speed of the stirrer at 300-340 revolutions per minute, and continuously stirring for 35-45 minutes to obtain a mixture A;

Step three: mixing and uniformly stirring a certain amount of molybdenum disulfide solution and perfluoropolyether, adding the mixture into a centrifugal filter for filtering, heating filtrate to 28-42 ℃, adding the filtrate into the mixture A, and uniformly stirring to obtain a mixture B;

Step four: and C, sequentially adding a heat stabilizer, a high-molecular heat-resistant material, a scratch-resistant agent, an organic solvent and an auxiliary agent into the mixture B obtained in the step three, stirring at the stirring temperature of 30-55 ℃, stirring at the stirring speed of 380-450 rpm for 10-20 minutes, standing and cooling to normal temperature after stirring is finished, and thus obtaining the novel glass heat-insulating coating material.

Technical Field

The invention relates to the technical field of water-based paint, in particular to a preparation method of a novel glass heat-insulating coating film material capable of improving elongation.

Background

coatings using water as a solvent or as a dispersion medium can be referred to as water-based coatings, which are classified into two main categories according to the category of binders in the coatings: the traditional water-based paint generally has the defects of low elongation, poor adaptability to deformation of a base layer, low strength after curing, easy damage and poor heat-resistant effect; therefore, a preparation method of a novel glass heat insulation coating film material capable of improving the elongation is provided.

Disclosure of Invention

The invention aims to provide a preparation method of a novel glass heat-insulating coating film material capable of improving the elongation rate, so as to solve the problems in the background art.

in order to achieve the purpose, the invention provides the following technical scheme: a novel glass heat insulation coating film material capable of improving elongation percentage comprises the following components (by mass percent): 20-30% of thermoplastic resin, 15-20% of polyurethane fine particles, 6.2-6.8% of heat stabilizer, 3.3-3.9% of scratch resistant agent, 4.7-5.6% of high-molecular heat-resistant material, 1.25-2.38% of graphite powder, 1.4-2.2% of silicone oil, 2.2-3.6% of molybdenum disulfide solution, 1.8-2.4% of perfluoropolyether, 3.16-4.24% of assistant and the balance of organic solvent.

preferably, the composition comprises the following components (by mass percent): 20% of thermoplastic resin, 15% of polyurethane fine particles, 6.2% of heat stabilizer, 3.3% of scratch resistant agent, 4.7% of high-molecular heat resistant material, 1.25% of graphite powder, 1.4% of silicone oil, 2.2% of molybdenum disulfide solution, 1.8% of perfluoropolyether, 3.16% of assistant and the balance of organic solvent.

preferably, the composition comprises the following components (by mass percent): 24% of thermoplastic resin, 17% of polyurethane fine particles, 6.4% of heat stabilizer, 3.5% of scratch resistant agent, 4.9% of high-molecular heat resistant material, 1.76% of graphite powder, 1.7% of silicone oil, 2.8% of molybdenum disulfide solution, 2% of perfluoropolyether, 3.55% of assistant and the balance of organic solvent.

preferably, the composition comprises the following components (by mass percent): 28% of thermoplastic resin, 18% of polyurethane fine particles, 6.6% of heat stabilizer, 3.7% of scratch resistant agent, 5.3% of high-molecular heat resistant material, 2.12% of graphite powder, 2% of silicone oil, 3.1% of molybdenum disulfide solution, 2.2% of perfluoropolyether, 3.96% of assistant and the balance of organic solvent.

preferably, the composition comprises the following components (by mass percent): 30% of thermoplastic resin, 20% of polyurethane fine particles, 6.8% of heat stabilizer, 3.9% of scratch resistant agent, 5.6% of high-molecular heat resistant material, 2.38% of graphite powder, 2.2% of silicone oil, 3.6% of molybdenum disulfide solution, 2.4% of perfluoropolyether, 4.24% of auxiliary agent and the balance of organic solvent.

preferably, the thermoplastic resin is any one of polypropylene, polyethylene terephthalate or polyacrylic resin, the heat stabilizer is an organic tin heat stabilizer, and the scratch resistance agent is polyethylene micro wax.

Preferably, the organic solvent is any one of styrene, perchloroethylene, trichloroethylene or ethylene glycol ether, and the high-molecular heat-resistant material is powder formed by mixing 55% of polycarbonate and 45% of polyimide; the auxiliary agent comprises a tackifier and a defoaming agent, wherein the tackifier is DINP, and the defoaming agent is 104E.

the preparation method of the novel glass heat insulation coating film material capable of improving the elongation percentage comprises the following steps:

the method comprises the following steps: weighing a certain amount of polyurethane fine particles, mashing the polyurethane fine particles by a mashing machine, sieving the smashed polyurethane fine particles by a 200-400-mesh sieve, maintaining the pressure of the sieved fine particles for 5-10 minutes, discharging gas for 2-5 times in the middle, then putting the fine particles into a sintering furnace for sintering, wherein the temperature rise speed during sintering is 45-55 ℃/h, keeping the temperature at 280-300 ℃ for 65-125 minutes, discharging the fine particles when the temperature is reduced to 130-140 ℃, putting the fine particles into a ball mill for ball milling for 2-4 hours after discharging, and taking out the fine particles and sieving the fine particles by a 600-800-mesh sieve to obtain polyurethane powder;

Step two: introducing thermoplastic resin and polyurethane powder into a container, placing the container on an electromagnetic stirrer, setting the rotating speed of the stirrer at 280-320 revolutions per minute, continuously stirring for 25-40 minutes, then sequentially adding graphite powder and silicone oil, setting the rotating speed of the stirrer at 300-340 revolutions per minute, and continuously stirring for 35-45 minutes to obtain a mixture A;

Step three: mixing and uniformly stirring a certain amount of molybdenum disulfide solution and perfluoropolyether, adding the mixture into a centrifugal filter for filtering, heating filtrate to 28-42 ℃, adding the filtrate into the mixture A, and uniformly stirring to obtain a mixture B;

Step four: and C, sequentially adding a heat stabilizer, a high-molecular heat-resistant material, a scratch-resistant agent, an organic solvent and an auxiliary agent into the mixture B obtained in the step three, stirring at the stirring temperature of 30-55 ℃, stirring at the stirring speed of 380-450 rpm for 10-20 minutes, standing and cooling to normal temperature after stirring is finished, and thus obtaining the novel glass heat-insulating coating material.

compared with the prior art, the invention has the beneficial effects that: the novel glass heat-insulating coating material is more reasonable in formula, the thermoplasticity of the water-based coating can be increased to a certain extent by taking the thermoplastic resin and the polyurethane fine particles as main raw materials and adding the graphite powder, the silicone oil, the molybdenum disulfide solution and the perfluoropolyether in a matching manner, the elongation rate of the water-based coating is improved, the adaptability to the deformation of a base layer is good, the heat resistance and the fire resistance of the water-based coating can be enhanced by adding the heat stabilizer and the high-molecular heat-resistant material in a matching manner, the strength of the coating can be enhanced by adding the scratch-resistant agent in a matching manner, and the coating is not; the preparation method is simpler, has low equipment requirement and has good popularization effect.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.