Виниловая смола представляет собой разновидность высокомолекулярного полимера, изготовленного из мономера этилена в качестве основного сырья.. Its molecular chain is composed of ethylene units alternately. It has high transparency, excellent mechanical properties and chemical corrosion resistance. Vinyl resin is widely used in plastic products, трубы, фильмы, упаковочные материалы, optical fibers and other fields. Common vinyl resins are polyethylene, полипропилен, vinyl vinyl ester copolymer and so on.

The following are the properties of common vinyl resins to be tested and their testing methods, как показано в следующей таблице:

Испытание виниловой смолы и соответствующий метод испытаний

The above indicators are for different types of vinyl resin, the specific test methods and standards can be adjusted according to the actual situation. It should be pointed out that the above test items are not all, and other performance indicators may need to be considered in practical applications to meet different application requirements.

Метод обнаружения
The following is a detailed description of the testing methods for common properties of vinyl resins:

Density test: ASTM D792 samples usually need to be made into a specified size and shape of the sample, and then by measuring the sample mass and volume, the density value of the sample is calculated.

Melt rate test: The ASTM D1238 sample was heated and extruded under specific conditions for a period of time, and the melt rate value was calculated by measuring the plastic mass and time of extrusion.

Melt index test: The ASTM D1238 sample was heated and extruded under specific conditions for a period of time, and the melt index value was calculated by measuring the quality and time of the extruded plastic.

Melt flow rate test: The ASTM D1238 sample was heated and extruded under specific conditions for a period of time, and the melt flow rate value was calculated by measuring the plastic mass and time of extrusion.

Melting point test: ASTM D3418 samples were tested under specific conditions through a heating and cooling process to obtain melting point values.

Испытание виниловой смолы и соответствующий метод испытаний

Hardness test: ASTM D2240 samples are pressed into a hardness tester at a certain depth, and the hardness value is calculated from the reading.

Предел прочности, tensile modulus, elongation at break test: ASTM D638 samples through a series of tensile tests, through the testing machine’s tension and elongation data to calculate the tensile strength, tensile modulus, elongation at break and other values.

Испытание на ударную вязкость: ASTM D256 sample through the specific impact test, calculated the impact strength value.

Thermal deformation temperature test: ASTM D648 samples are heated and cooled under specific conditions to measure the deformation temperature of the sample.

Chemical resistance Test: ASTM D543 samples were subjected to exposure tests under certain conditions to evaluate their chemical corrosion properties.

Испытание на термостойкость: ASTM D794 samples were subjected to a heat test at high temperature over a period of time to evaluate their heat resistance.

Испытание виниловой смолы и соответствующий метод испытаний

Cold resistance test: ASTM D1790 samples were tested at low temperatures over a period of time to evaluate their cold resistance.

Tensile and shrinkage properties testing: ASTM D955 samples were subjected to tensile and shrinkage tests under specific conditions after certain heat treatment to evaluate their tensile and shrinkage properties.

Uv resistance Test: ASTM G154 samples are subjected to UV irradiation under specified conditions to evaluate their UV resistance.

Fire resistance test: UL94 samples were subjected to specific combustion tests to assess their fire resistance.

Тест на водонепроницаемость: ASTM D870 samples were subjected to a water immersion and drying cycle under specific conditions to evaluate their water resistance.

Weather resistance Test: ASTM D2244 samples are subjected to specific weather and light conditions to evaluate their weather resistance.

Processability Test: ASTM D2235 samples were subjected to specific processing conditions to evaluate their processability.

Испытание виниловой смолы и соответствующий метод испытаний

Compressive strength testing: ASTM D695 samples were compressive tested under specific conditions to evaluate their compressive strength properties.

Chemical corrosion resistance Test: ASTM D543 samples were subjected to exposure tests under certain conditions to evaluate their chemical corrosion properties.

Electrical Performance Testing: ASTM D150 samples undergo specific electrical tests to evaluate their electrical properties.

Thermal Conductivity Testing: ASTM C518 samples were subjected to specific thermal conductivity tests to evaluate their thermal conductivity properties.

Uv resistance Test: ASTM G154 samples were subjected to UV irradiation under specified conditions to evaluate their UV resistance.

The above test methods are not comprehensive, and the specific test methods should be selected according to the actual situation.