5results about How to "Good coating performance" patented technology

The utility model is suitable for the technical field of wood processing, and provides a wood gluing machine capable of uniformly gluing, which comprises an operation table, supporting frames are installed on the left side and the right side of the operation table correspondingly, and rotating rollers are rotationally installed at the front end and the rear end of the operation table correspondingly. According to the wood gluing machine with the uniform gluing function, the conveying belt is arranged to convey wood boards at the uniform speed, coating is sprayed to the surfaces of the wood boards at the uniform speed, the wood boards can pass through the first scraping plate after spraying is completed, and along with uniform-speed conveying of the wood boards, the coating on the surfaces of the wood boards can be scraped to be flat through the first scraping plate; through the arrangement of a recycling box and a second scraping plate, along with continuous conveying of the conveying belt, the coating falling onto the surface of the conveying belt can be scraped down by the second scraping plate and flows into the recycling box to be collected, and through the arrangement of a draught fan and an air groove, air blowing and dust removal can be conducted on the wood board; therefore, the subsequent coating effect is improved.

Liquid polybutadiene, and a preparation method therefor and an application thereof. The liquid polybutadiene has a number-average molecular weight of 2,500-5,500, and a molecular weight distribution index of 1-1.2; based on the total amount of the liquid polybutadiene, the content of a 1,2-structural unit in the liquid polybutadiene is 85-95 wt%, the content of a 1,4-structural unit in the liquid polybutadiene is 5-15 wt%, and the molar ratio of a cis-1,4-structural unit to a trans-1,4-structural unit in the liquid polybutadiene is 1-2 : 1; and the dynamic viscosity of the liquid polybutadiene at 45°C is 100-500P. The liquid polybutadiene has good flowability, good film formability, and good coating performance, and a formed coating has an improved adhesion force to a substrate.

The application discloses an environment-friendly antifouling paint based on synergistic effect of natural products, belongs to the technical field of paints and is suitable for biological fouling protection of ships, ocean platforms and offshore wind power towers. The paint is composed of natural product antifouling agent 5-20 parts, environment-friendly film forming agent 30-50 parts, dispersing agent 2-5 parts, thickening agent 1-3 parts, defoaming agent 0.5-2 parts and environment-friendly solvent 20-40 parts in parts; the natural product antifouling agent is formed by compounding marine plant extract and plant essential oil at a ratio of 1:1-3:1, and a synergistic mechanism of 'inhibition-kill-repell' is formed. The application has the advantages of simple preparation process, no special equipment, no heavy metal and organic tin in the paint, biological degradation rate greater than or equal to 80%, high antifouling efficiency, long effective period, strong coating adhesion and the like, solves the defects of poor environmental protection and poor synergy of the existing antifouling paint, is suitable for long-term service requirements in three fields and has high practical value and industrialization popularization prospect.

The application discloses a surface coating of an induction coil of a medium-frequency welding machine and a preparation method thereof. The surface coating comprises a transition layer and a surface layer. The transition layer is composed of nickel-aluminum, aluminum oxide and coated powder in a weight ratio of 85-90:5-8:5-10. The surface layer is composed of aluminum oxide and potassium silicate in a weight ratio of 94-98:2-6. The coated powder is formed by coating zirconium diboride with calcium fluoride. The thickness of the transition layer is 30-150 microns. The thickness of the surface layer is 200-500 microns. The prepared coating has good bonding strength and insulation performance, and the preparation method is simple and efficient, and is suitable for various industrial applications.

The application discloses a composite powder reinforced radiation refrigeration coating and a preparation method thereof, and relates to the technical field of coating.The multistage surface modification functional powder, the water-based polyurethane resin and the polyisocyanate curing agent are used, the problems of unbalanced radiation refrigeration performance, slow drying speed, poor mechanical performance and environmental stability, and insufficient weather resistance of the existing coating are solved, the application scenarios of efficient cooling, weather resistance, corrosion resistance and long-term stable service are met, and the coating can be widely applied to the fields of building outer walls, metal components, cold chain equipment, outdoor facilities and the like.