Plexiglass display stand products is that we often see the merchandise display props, plexiglass display material can be used to make jewelry items, cosmetics, glasses display props and other types of merchandise display tools. Acrylic display because of its special material properties and have a lot of special properties, we often see and use the material plexiglass display exactly what attributes?
1. Mechanical properties:
Acrylic display has good mechanical properties, physical properties of living in the forefront of GE Plastics, stretching, bending, compression strength were higher than polyolefins, polystyrene, polyvinyl chloride and other materials, plastic products, impact toughness relatively weak, but slightly better than polystyrene. After pouring processed acrylic display tensile, bending, compression and other mechanical properties will be more advantageous. Acrylic display of intensity and time-related stress, increase strength over time will decline. After plexiglass tensile mechanical properties are improved significantly after orientation, it is possible to improve the sensitivity of the gap.
2. The electrical properties:
Since the main chain lateral plexiglass material containing polar methyl group, electrical performance is less than the non-polar polyolefin and polystyrene plastic. Carbomethoxy-polarity is not great, but acrylic display material still has good dielectric and electrical insulation properties. It is worth mentioning that the acrylic display materials generally have excellent arc resistance, under the arc effect, the surface will not produce carbonized conductive path and arc track phenomenon. 20 ℃ is a second order transition temperature, the temperature corresponding to the beginning of the movement of the side methyl groups, less than 20 ℃, the side methyl groups in a frozen state, the electrical properties of the material will be increased when the ratio is above 20 ℃.
3. Weather resistance:
Acrylic display has excellent resistance to atmospheric aging, tested their samples after 4 years of natural aging test, weight change, tensile strength, light transmittance though slightly, slightly yellowed color, but its impact strength also It increased slightly, the other physical properties almost unchanged. So plexiglass display has a longer service life.
The chemical resistance and solvent resistance:
Acrylic display materials resistant to dilute mineral acids, but more concentrated mineral acids will erode the material itself. Can alkali class, but warm sodium hydroxide, potassium hydroxide allow it to erosion, can be salt and fats and oils category, resistant to aliphatic hydrocarbons, insoluble in water, methanol, glycerine, etc., but can swell to absorb alcohol and stress cracking, intolerance ketones, chlorinated hydrocarbons and aromatic hydrocarbons. Its solubility parameter of about 18.8 (J / CM3) 1/2, in a number of chlorinated hydrocarbons and aromatic hydrocarbons can be dissolved, such as dichloroethane, trichlorethylene, chloroform, toluene, acetone, vinyl acetate, and also can make it dissolved. Also acrylic display materials for ozone and sulfur dioxide and other gases has good resistance.