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Temperatures have little impact on the performance of plexiglass

Categories: Industry newsStars: 3Stars Visit: - Release time: 2015-04-25 11:36:00
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Plexiglass number of performance (especially physical and mechanical properties) exhibits a strong dependence on temperature.
1,the effect of temperature on the extension of plexiglass
As the temperature increases, the elongation at break in plexiglass brittle fracture when gradually increases, the elongation at break to 60 ℃, plexiglass rate of 5.6% when more than a certain temperature, glass begins to soften, the stretching process was yield damage. Temperature of plexiglass breaking elongation and yield elongation relationship.
2 and temperature on the hardness of plexiglass
Plexiglass hardness decreases with increasing temperature. Further, the hardness was measured using a load value is larger, the measured hardness values ??lower. Within a certain range, the thickness of the acrylic sheet, the higher the measured value; but when the thickness increases to a certain extent, the hardness values ??measured no obvious improvement.
3,the temperature on the strength and tensile modulus of elasticity of the stretch of plexiglass
As the temperature increases, the tensile strength and tensile modulus of elasticity substantially linearly reduced. The reasons are: increasing temperature, polymer materials segment capacity enhancement activities, occurs gradually from the glassy state to a high-elastic, viscous flow state of transition, the macro performance increase flexibility, strength and elastic modulus decreased.
4,the temperature of different thickness plexiglass Impact Strength
Temperature impact properties of PMMA has a similar impact. As the temperature increases, the molecular motion plexiglass segments enhanced performance and increased flexibility to improve the impact strength of the macro.
5,the effect of temperature on plexiglass Poisson's ratio
Poisson's ratio of temperature on plexiglass also have some impact, the higher the temperature, the greater the Poisson's ratio.