High-voltage breakdown resistant flame-retardant nylon nano composite material and preparation method thereof

Abstract

The invention discloses a high-voltage breakdown resistant flame-retardant nylon nano composite material and a preparation method thereof. The high-voltage breakdown resistant flame-retardant nylon nano composite material comprises the following raw materials in parts by mass: 50-70 parts of PA (Polyamide), 25-35 parts of glass fiber, 0-2 parts of a flowing agent, 5-8 parts of a toughening agent, 0.1-0.3 part of an antioxidant, 0.3-0.6 part of a lubricant, 1-5 parts of a nano breakdown reagent and 0-3 parts of a coupling agent. The high-voltage breakdown resistant flame-retardant nylon nano composite material disclosed by the invention is excellent in mechanical property and excellent in electrical property and can be used for replacing ceramic to be applied to fields such as electronics, electric appliances and automobiles with requirements of high flowability and good performance.

Description

technical field [0001] The invention relates to a high-voltage breakdown flame-retardant reinforced nylon nanocomposite material and a preparation method thereof. Background technique [0002] Nylon is the general name of polyamide, and it is the extrusion resin with the largest output, the most varieties, the widest application and the best comprehensive performance among the five general-purpose engineering plastics. Among polyamide resins, nylon 6 and nylon 66 have the largest output and consumption, accounting for about 90% of the total polyamide. Nylon has outstanding characteristics in terms of mechanical, chemical, and thermal properties. [0003] But there are also more prominent shortcomings, such as its own water absorption, but it becomes brittle at low temperature; it has poor environmental resistance, and it is easy to turn yellow and brittle when used outdoors. The anisotropy of tensile strength is large, the product is easy to deform, the continuous use tempe...

AI Technical Summary

Problems solved by technology

[0003] But there are also prominent shortcomings, such as its own water absorption, but it becomes brittle at low temperature; it has poor environmental resistance, and it is easy to turn yellow and brittle when used outdoors.

The anisotropy of tensile strength is large, the product is easy to deform, the continuous use temperature is low, the creep performance is large, and it is not resistant to long-term load. The fluidity of PA filled with glass fiber is poor, and it is difficult to meet the molding injection molding of large products.

As an engineering plastic, its physical and mechanical properties need to be further improved. The existing modification method basically adopts the method of blending modification. However, the performance of the existing modified PA still cannot meet the demand.