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Calcium carbonate modified effect
by：CSSSLD
2021-02-03
Mechanical properties.
After filling calcium carbonate, calcium titanate as high hardness, higher hardness and stiffness of injection molding products processing, mechanical performance enhancements.
Products of tensile strength and bending strength is improved, and the elastic modulus of plastic products remarkably, compared with glass fiber reinforced plastic its tensile strength, flexural strength and flexural modulus and the glass fiber reinforced plastic is roughly same, thermal deformation temperature is generally higher than the glass fiber reinforced plastic, only inferior to glass fiber reinforced plastic is he notched impact strength is low, but the disadvantages can be overcome by adding a small amount of short glass fiber.
For pipe material, filling calcium carbonate can improve its several indicators, such as tensile strength, the strength of steel ball indentation, notch impact strength, viscous resistance, heat resistance, and so on.
But at the same time can reduce it several toughness indexes, such as fracture elongation, fast beam crack, the impact strength.
the radioactive. Filling material has certain absorption ability to the rays, usually can absorb 30% 80% of the incoming ultraviolet ray, prevent aging of plastic processing products. Rigidity and toughness are two important performance index plastic products, how to ensure that plastic products at the same time has good rigidity and toughness, is important hot topic in the field of material science for a long time.
thermal performance. After joining filling material, due to the thermal stability of calcium carbonate, can make the injection molding processing products of the thermal expansion coefficient, reduction in all respects the same, but not as strong glass fiber thermoplastic, in different ways have different shrinkage rate, after joining filling material to make products become warped, bending degrees of smaller, this is the biggest characteristic compared with fiber filling material, thermal deformation temperature of the products increased with the increase of filling material.
in order to improve the toughness of plastic products, generally adopt the method of adding rubber or elastic body, can achieve the purpose of toughening, rigid performance, but only at the loss of materials and materials of injection molding processing performance and heat resistance would be reduced.
plastic filling in a lot of superfine calcium carbonate particles, plastic not only intact rigidity, toughness have been improved greatly, the best 2 - can be improved Three times. Changed before filling modified plastics must be carried at the cost of some mechanical properties, the mechanical properties of modified plastics with the increase of the filler filling quantity decreases.
a: calcium carbonate used as plastic packing, click directly.
http://www。 csssld。 cn//html/2016/Trade_0721/296。 HTML
nantong on suye's official website: http://www. csssld。 cn//
the radioactive. Filling material has certain absorption ability to the rays, usually can absorb 30% 80% of the incoming ultraviolet ray, prevent aging of plastic processing products. Rigidity and toughness are two important performance index plastic products, how to ensure that plastic products at the same time has good rigidity and toughness, is important hot topic in the field of material science for a long time.
thermal performance. After joining filling material, due to the thermal stability of calcium carbonate, can make the injection molding processing products of the thermal expansion coefficient, reduction in all respects the same, but not as strong glass fiber thermoplastic, in different ways have different shrinkage rate, after joining filling material to make products become warped, bending degrees of smaller, this is the biggest characteristic compared with fiber filling material, thermal deformation temperature of the products increased with the increase of filling material.
in order to improve the toughness of plastic products, generally adopt the method of adding rubber or elastic body, can achieve the purpose of toughening, rigid performance, but only at the loss of materials and materials of injection molding processing performance and heat resistance would be reduced.
plastic filling in a lot of superfine calcium carbonate particles, plastic not only intact rigidity, toughness have been improved greatly, the best 2 - can be improved Three times. Changed before filling modified plastics must be carried at the cost of some mechanical properties, the mechanical properties of modified plastics with the increase of the filler filling quantity decreases.
a: calcium carbonate used as plastic packing, click directly.
http://www。 csssld。 cn//html/2016/Trade_0721/296。 HTML
nantong on suye's official website: http://www. csssld。 cn//
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