34results about How to "Increased hemispherical emissivity" patented technology

The invention discloses a heat-reflecting thermal-insulating anticorrosive paint which comprises the following components: by weight, 50% of acrylic resin, 20% of titanium dioxide, 13% of xylene, 5% of butyl acetate, 10% of ceramic microbead, 1% of bentonite and 1% of an auxiliary agent. Through the above mode, the heat-reflecting thermal-insulating anticorrosive paint and its production technology provided by the invention has an advantage of simple construction. According to the paint, the ceramic microbead is used as a filler. Thus, by a coating formed by the ceramic microbead, solar light reflection rate and hemispherical emittance are raised. The paint can reflect solar heat radiation and prevent corrosion and is used in coating of heat insulation and anticorrosion projects so as to minimize thermal load of steel structures and buildings by reflecting solar radiation.

The invention belongs to the technical field of coatings, and especially relates to a production technology for a reflective heat-insulation coating. The production technology comprises the following steps: adding 160-180 parts by weight of water, 2.5-4.8 parts by weight of a dispersant, 4.8-7.2 parts by weight of an antifoaming agent, and 4.8-8.8 a bactericide into a reaction kettle, and stirring uniformly; and then adding 16-24 parts by weight of a film-forming auxiliary agent, 0.3-0.8 part of a thickening agent, 0.3-0.5 part of a pH adjuster, and 1.5-3.2 parts by weight of an anti-freezing agent, adjusting the rotation speed to be 280-380 r / min, and then stirring for 25-30 min, so as to obtain the reflective heat-insulation coating. The produced reflective heat-insulation coating possesses excellent performances and relatively high reflectivity and emissivity, possesses relatively high solar reflection and hemisphere emissivity because of the added nanometer metal oxide, and is capable of reflecting 95% or more of energy in solar heat.

The invention relates to a preparation method and applications of an aqueous reflective radiation type composite heat insulation paint. The aqueous reflective radiation type composite heat insulationpaint is of a double layer paint layer structure composed of a radiation thermal-insulation paint and a reflective thermal-insulation paint; the radiation thermal-insulation paint is sprayed onto a lower layer; the reflective thermal-insulation paint is sprayed onto an upper layer; the high radiation performance of convenience carbon nanotube and the reflective performance of rutile type titaniumdioxide are combined, reflective thermal insulation effect is achieved by the titanium dioxide at the upper layer; the radiation thermal insulation effect is achieved by the carbon nanotube at the bottom layer. Compared with simple blended single-layer structures, the double-layer structure possesses a following advantage: the reflective effect of rutile type titanium dioxide can be ensured effectively. The aqueous reflective radiation type composite heat insulation paint is low in VOC, is friendly to the environment. The aqueous reflective radiation type composite heat insulation paint possesses excellent reflective performance on visible light and near infrared light, is high in hemispherical emissivity, and excellent in thermal insulation effect, is green, and is friendly to the environment; the preparation method is simple and controllable; construction is convenient; and the aqueous reflective radiation type composite heat insulation paint can be applied on building exterior wallsand petroleum chemical storage tanks based on different requirements.

The invention provides ultrahigh-viscosity and high-sunlight-reflection-ratio waterproof and heat insulation coating and a preparation method thereof and relates to a waterproof and heat insulation coating and a preparation method thereof. The ultrahigh-viscosity and high-sunlight-reflection-ratio waterproof and heat insulation coating is prepared from water, hollow ceramic microspheres, titaniumwhite powder, a dispersant, ultraviolet crosslinking acrylic emulsion, silicon resin, a film forming auxiliary agent, a mildew-proof auxiliary agent, a de-foaming agent, a pH (Potential of Hydrogen) regulator and a rheological modifier premix. The method comprises the following steps: adding raw materials into a reaction kettle and stirring the raw materials while adding to obtain a mixture; regulating the pH value and adding the rheological modifier premix; mixing a liquid phase at a low speed; decompressing and distilling to remove water, so as to obtain the coating. According to the ultrahigh-viscosity and high-sunlight-reflection-ratio waterproof and heat insulation coating provided by the invention, the coverage capability of the coating is greatly improved so that the minimum thickness for covering a substrate is reduced and reaches 0.5 to 0.8mm. The sunlight reflection ratio of the coating can reach 0.92 under the thickness. The preparation method is used for preparing the high-performance waterproof and heat insulation coating.

The invention relates to an intelligent temperature regulating type heat reflection heat insulation coating and a preparation method thereof. The coating is made from raw materials in parts by weight: 200-300 parts of acrylic emulsion, 150-250 parts of high reflection type phase change microcapsules, 30-80 parts of high radiation type nano-metal and metal oxide, 100-150 parts of packing with heat insulation function, 2-5 parts of a wetting dispersant, 1-3 parts of a mould inhibitor, 5-10 parts of a thickener, 4-8 parts of a defoaming agent, 15-25 parts of a film forming additive, and 100-150 parts of water. The intelligent temperature regulating type heat reflection heat insulation coating provided by the invention is excellent in performance, safe and environment-friendly, and has high reflectivity and emissivity. By utilizing the reversible energy storage and release effect of the phase change microcapsules, the temperature of the inner side and the surface of an object can be effectively and automatically regulated along with the change of external temperature so that the temperature tends to be stable so as to avoid the radical change of the temperature of the inner side and the surface of the object caused by sudden rising or dropping of the external temperature.

The invention discloses a waterborne architectural reflective thermal insulation paint, which comprises the following raw materials by mass: 10-15 parts of water, 50-60 parts of a reflective thermal insulation emulsion, 5-20 parts of rutile titanium dioxide, 1-5 parts of a heat reflective color paste, 8-10 parts of hollow glass beads, 5-8 parts of ceramic micropowder, 2.5-3.5 parts of an assistant. The invention also discloses a thermal insulation and decoration integrated plate applying the paint, and the thermal insulation and decoration integrated plate consists of a thermal insulation layer, a bonding layer, a substrate layer and a facing layer. The paint provided by the invention has good reflective thermal insulation effect, greatly enhances the heat preservation effect of the thermal insulation and decoration integrated plate, and more effectively realizes building energy conservation.

The invention relates to an insulation system and a preparation method of materials thereof, in particular to a heat insulation system and a preparation method of materials thereof, and belongs to the technical field of building materials. The heat insulation system comprises a bonding layer, an insulating layer, a dual-phrase-change layer, a strengthening protective layer, an elastic putty layer and a reflecting layer which are sequentially arranged from a wall to the outside. The insulating layer is one of an expanded polystyrene board, an extruded polystyrene board, a phenolic aldehyde board, a polyurethane board, a cement foaming insulation board and a rock wool board. The dual-phrase-change layer is made of dual-phrase-change shaping materials. The strengthening protective layer comprises anti-crack mortar and alkali-resisting gridding cloth. The reflecting layer is a reflecting insulating mold coating. The heat insulation system has the advantages that heat insulation efficiency can be improved, phrase change materials can play a role both in summer and in winter, and therefore energy-saving efficiency is improved.

The invention relates to a method for preparing a thermal control coating on the surface of aluminum alloy through ultrasonic pulse electro-deposition, in particular to a preparation method of preparing a composite oxidation film with the low solar absorptivity / hemispherical emissivity ratio on the surface of aluminum alloy. The preparation method comprises the following steps that 1, pretreatment is conducted on the surface of the aluminum alloy; 2, anodizing is conducted on the aluminum alloy; and 3, the oxidized aluminum alloy is subjected to ultrasonic pulse electro-deposition to prepare silicon dioxide sol, then, the surface of the aluminum alloy is cleaned with distilled water and dried, and a low-absorptivity high-emissivity thermal control coating on the surface of the aluminum alloy is obtained. The solar absorptivity of the coating is 0.10-0.20, the hemispherical emissivity of the coating is 0.80-0.95, and the thermal control coating which is low in solar absorptivity and high in hemispherical emissivity has good performance.