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Flame-retardant glass fiber-reinforced HDPE/PA6 alloy material with high CTI value and high GWIT value

A technology of alloy materials and glass fiber, which is applied in the field of HDPE/PA6 alloy materials, can solve the problems of unsuitable electricity environment, low CTI value and GWIT value, etc., and achieve improved oxidation resistance, improved processing fluidity, and good dispersion Effect

Inactive Publication Date: 2015-06-03
SHANGHAI SUNNY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some traditional methods are (GF+decabromodiphenylethane+antimony trioxide) compound system, (GF+brominated polystyrene+antimony trioxide) compound system, but the CTI value and GWIT of these compound systems The value is not high, not suitable for high-demand electricity environment

Method used

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  • Flame-retardant glass fiber-reinforced HDPE/PA6 alloy material with high CTI value and high GWIT value
  • Flame-retardant glass fiber-reinforced HDPE/PA6 alloy material with high CTI value and high GWIT value
  • Flame-retardant glass fiber-reinforced HDPE/PA6 alloy material with high CTI value and high GWIT value

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Embodiment 1～6

[0028] The high CTI value, high GWIT value flame-retardant glass fiber reinforced HDPE / PA6 alloy material of Examples 1-6, each component contained is shown in Table 1, wherein, HDPE is commercially available high-density polyethylene, PA6 is intrinsic viscosity It is commercially available polyamide 6 of 2.8dl / g, and the glass fiber is an alkali-free glass fiber treated with a silane coupling agent on the surface (specifically: adding the alkali-free glass fiber into the silane coupling agent to make its surface through silane coupling agent treatment), the compatibilizer is commercially available maleic anhydride grafted HDPE, the compound flame retardant A is a mixture of three components, and its mass percentage is BPS (brominated polystyrene): 50%, hypophosphorous acid Magnesium: 25%, talcum powder: 25%, compound flame retardant B is BPS, GF (non-reactive flame retardant containing nitrogen and phosphorus) and antimony trioxide at a mass ratio of 2:1:1 Compound system, co...

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Abstract

The invention discloses a flame-retardant glass fiber-reinforced HDPE / PA6 alloy material with a high CTI value and a high GWIT value. The alloy material comprises the following components: by weight, 23 to 41% of HDPE, 22 to 41% of PA6, 6 to 15% of a compound fire retardant, 3 to 10% of antimonony oxide, 20 to 30% of a glass fiber, 2 to 9% of a compatilizer, 0.1 to 1% of an anti-oxidant and 0.1 to 1% of a metallic oxide. In preparation of the alloy material, all the components are added into a high-speed mixer for mixing for 2 to 5 min, and then discharging and extrusion granulation in a twin-screw extruder are carried out, wherein extrusion temperature is 200 to 220 DEG C and screw revolution is 30 to 40 Hz. Compared with the prior art, the alloy material provided by the invention has the advantages of a high glow wire temperature, a high tracking index, environment-friendliness, balanced comprehensive properties and the like and can be extensively used for low-voltage electronic capacitor shells, load break switches, carbon brush supports and molded case circuit breakers.

Description

technical field [0001] The invention relates to an HDPE / PA6 alloy material, in particular to a flame-retardant glass fiber-reinforced HDPE / PA6 alloy material with a high CTI value and a high GWIT value. Background technique [0002] Nylon (Nylon), Chinese name polyamide, English name Polyamide (referred to as PA), is a general term for thermoplastic resins containing repeated amide groups—[NHCO]—on the main molecular chain. Its name depends on the specific number of carbon atoms in the synthetic monomer, such as: nylon-6, 66, 1010, 610. It has high crystallinity and obvious melting point; high surface hardness, wear resistance, small friction coefficient, self-lubrication and noise reduction. It has good low temperature performance and has certain heat resistance (can be used below 100 degrees). Non-toxic, odorless, non-mildew, self-extinguishing, good weather resistance, but poor dyeing. High Density Polyethylene (HDPE for short) is a non-polar thermoplastic resin with h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/06C08L77/02C08L51/06C08L25/04C08K13/06C08K7/14C08K3/22C08K3/32C08K3/34
Inventor 郭建鹏苏吉英
Owner SHANGHAI SUNNY
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