The main component of PVC is resin. Resin refers to a polymer compound that has not been mixed with various additives. Resin accounts for approximately 40% to 100% of the total weight of plastic. The basic properties of plastics are mainly determined by the nature of the resin, but additives also play an important role. Usually contains fillers, antioxidants, plasticizers, nucleating agents and other additives. Under suitable processing conditions, it can be shaped and maintain its established shape under normal temperature and pressure.
1. Plastic component testing unit:
Plastic component testing is generally completed by an independent third-party professional quality testing agency. The third-party quality testing agency is relatively independent and impartial. gender, and are qualified to produce fair data to society.
Third-party testing agencies have the following testing capabilities:
1. Plastic component testing items: Physical and chemical performance testing: PH value, specific heat capacity, purity, concentration, hardness, thermal conductivity, flash point , viscosity, appearance, etc.
Aging performance testing: salt spray test, hot air aging, UV aging, xenon lamp aging, ozone aging, carbon arc lamp aging, outdoor exposure test, etc.
Thermal performance testing: melting Index, glass transition temperature, melting point, thermal weight loss temperature, thermal distortion temperature, Vicat softening point, low temperature embrittlement temperature, linear thermal expansion coefficient, thermal conductivity, etc.
Hazardous substance detection: microorganisms, REACH detection, Melamine, PAHs, plasticizers, halogens, formaldehyde, heavy metals, ROHS, asbestos, etc.
2. Plastic component detection methods:
Plastic component analysis and testing: analyze the chemical name and component content of the sample components through chromatography, spectroscopy, nuclear magnetic and other precision instruments, and restore the formula and unknown substances Analysis etc.
Thermal analysis method: Thermal analysis is the measurement of changes in the properties of materials with temperature. It is widely used in characterizing the thermal properties, mechanical properties, physical properties and stability of materials, and has very important practical significance for quality control in material research and development and production.