Analysis of hot melt coating formula, analysis and testing of hot melt coating components

Hot melt paint is a material used on roads to make markings such as lanes. When the paint is heated to 180 degrees and becomes liquid, it is applied to the road using specialized equipment. Because it needs to be melted with fire, it is called hot melt. The characteristic of hot melt coating is that it has quick drying and the drying time is generally 1-3 minutes. Synthetic resin combines physical pigments, coloring pigments, reflective materials, etc. with road surfaces, and has the characteristics of strong adhesion, stable performance, long-lasting brightness, chromaticity, and reflectivity. In addition, it also has good wear resistance and skid resistance. Below is an introduction to the knowledge of hot melt coating testing.

1、 Analysis of Hot Melt Coating Formula

The finished product of hot melt coating is in powder form, and the main raw materials of hot melt coating include titanium dioxide, petroleum resin, quartz sand, reflective glass beads, and so on. Hot melt coatings are in powder form at room temperature and contain no volatile solvents in their composition.

2、 Hot melt coating testing

1. Hot melt coating testing items:

Paint film impact resistance, paint film impact resistance, paint film thickness, paint film adhesion, pencil hardness, paint film wear resistance, linear wear, sanding wear, sagging, ash content, pH value, flash point, fineness, density, volumetric solid content, volatile organic compound content, bonding strength, consumption, leveling, covering power, usage amount, adhesion, viscosity, drying time, chemical properties, physical properties, mechanical properties, etc.

2. Hot melt coating testing range:

Road marking coatings, hot-melt marking coatings, hot-melt reflective coatings, etc.

3. Testing standards for hot melt coatings:

HG/T 4104-2019 Water based Fluororesin Coatings

GB/T 30794-2014 Determination of Polyvinylidene Fluoride (PVDF) Content in Hot Melt Fluororesin Coatings (Dry Film) – Melting Temperature Drop Method

HG/T 3793-2019 Hot Melt Fluororesin (PVDF) Coating

Starting from the analysis needs of unknown substances, different physical and chemical techniques and methods for separation and purification are comprehensively considered and adopted to separate and purify the various components in the unknown substance sample. Then, different analytical instruments and equipment are used to analyze, identify, and determine the name and content of the unknown sample.

Through comprehensive separation and detection methods, unknown substances are identified and analyzed, providing scientific basis for component identification, formula adjustment, new product development, and production process improvement in scientific research and production. The technology system combines advanced spectral analysis, thermal analysis, and elemental analysis technologies to provide professional chemical and chemical unknown substance identification and composition analysis solutions in China. It achieves chemical material composition identification, formula reduction, comparative analysis, process improvement, and fast and accurate analysis.

Application scope of unknown object identification

1. Analysis of plastic products: plastic masterbatch, modified plastics, plastic additives, plastic rope, plastic wire, plastic tape, plastic steel building materials, plastic film, foam materials, plastic pipes, plastic profiles, cable sheath insulation, etc.
2. Rubber product analysis: modified rubber, rubber raw materials, rubber hoses, conveyor belts, rubber pads, tires, sealing strips, films, etc.
3. Coating analysis: anti-corrosion coating, light curing coating, waterproof coating, thermal insulation coating, conductive coating, high temperature resistant coating.
4. Adhesive analysis: lotion, double-sided adhesive, epoxy adhesive, polyurethane adhesive, silicone adhesive, phenolic resin adhesive, potting adhesive, self-adhesive adhesive, potting adhesive.
5. Fine chemical analysis: industrial and civilian cleaning agents, metal processing aids, rubber modification aids, demulsifiers, emulsifiers, fluxes, cutting fluids, cement grinding aids and other products.
6. Stone analysis: natural stone, ore, gemstones, soil, etc; Artificial stone, artificial gemstones, medical stone, etc; Detection of heavy metal pollution in construction waste, riverbed silt, and water bodies; Detection, analysis, separation, and enrichment processes of rare earths; Testing of mining sites, tailings ponds, and wastewater.
7. Metal material analysis: analysis of inorganic special materials, composition analysis of metal materials; Analysis of special element content in profiles.
8. Analysis of cultural relics and ceramic products: analysis of pottery, iron ware, and bronze ware; Composition analysis of ceramic products.
9. Analysis of production auxiliary materials: analysis of metal flux and flux composition; Ceramic additives, metal surface treatment reagents.
10. Detection of radioactive levels in solids, liquids, organisms, and gases.

Unknown substance analysis instrument

1. Chromatography: liquid chromatography, gas chromatography, ion chromatography, etc.
2. Spectroscopy: UV spectrophotometer, Fourier transform infrared spectrometer, atomic absorption spectrometer, atomic fluorescence spectrometer, inductively coupled plasma atomic emission spectrometer, infrared spectrometer, etc.
3. Mass spectrometry: inductively coupled plasma mass spectrometer, gas chromatography-mass spectrometer, liquid chromatography-mass spectrometer, pyrolysis/gas chromatography-mass spectrometer, etc.
4. X-ray instruments: X-ray fluorescence spectrometer, X-ray diffractometer, scanning electron microscope/X-ray energy spectrometer, electron probe analyzer.

Testing items

1. Analyze the material composition to determine the elemental content of each component.
2. Separate and identify the components of the product to improve its own product quality.
3. Used for ingredient identification of unknown products to increase the probability of successful development.
4. Used for cultural relic identification to improve the scientific and accurate nature of cultural relic identification.
5. Understand the composition of unknown materials and eliminate potential hazards.
6. Analyze product components and provide a basis for reducing formulas.
7. Analyze competitor products, compare and optimize, and improve product quality.
8. Analyze advanced products, replicate production, and develop new products.
9. Analyze product structure, improve processes, and enhance production efficiency.

Unknown object analysis method

For inorganic unknown substances, the laboratory determines their main element content through methods such as X-ray fluorescence spectrometer (XRF) and atomic absorption spectroscopy; Determine the types and contents of trace elements through high-resolution inductively coupled plasma spectroscopy (ICP-OES), mass spectrometry (ICP-MS), and other methods; By combining X-ray diffraction analyzer (XRD) with electron probe analysis, infrared spectroscopy analysis, scanning electron microscopy, polarizing microscope and other instrument methods, the phase types of unknown substances and the forms of key elements can be quickly determined.

Component analysis method

Sample pretreatment: Different scientific separation and enrichment methods are adopted according to different types of samples (organic and inorganic components are separated, and components of different system compositions are separated). Large scale instrument analysis: qualitative and quantitative analysis, generally using more than ten instruments such as infrared spectroscopy, nuclear magnetic resonance spectroscopy, GC-MS, PY-GC-MS, ICP, IC, HPLC, XPF, GPC, etc; Spectrum analysis: Based on instrument detection of spectrum data, combined with industry experience to match database data for verification: combining spectrum analysis, common methods of basic chemistry, and related characteristics verification, verify the analysis results from multiple aspects; Expert review: Professors and related industry R&D experts review and verify the analysis results; Post production technical services: engineers provide solutions to customers’ actual problems encountered during the process

Our company is a professional manufacturer of road hot-melt coatings, road retroreflective measuring instruments, and road marking machines. If you are interested, please feel free to communicate with me via email at any time export@toproadtraffic.com