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Flame-retardant glass fiber-reinforced HDPE/PA12 alloy material with high CTI value and high GWIT value

An alloy material and glass fiber technology, applied in the field of alloy materials, can solve the problems of unsuitable electrical environment, low CTI value and GWIT value, etc., and achieve the effects of high leakage tracking index, improved oxidation resistance, and reduced friction coefficient.

Inactive Publication Date: 2013-04-03
SHANGHAI SUNNY
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  • Summary
  • 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/PA12 alloy material with high CTI value and high GWIT value
  • Flame-retardant glass fiber-reinforced HDPE/PA12 alloy material with high CTI value and high GWIT value
  • Flame-retardant glass fiber-reinforced HDPE/PA12 alloy material with high CTI value and high GWIT value

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～6

[0026] The raw materials and weight percentage content of Examples 1-2 are as shown in Table 1; The raw materials are weighed according to the weight percentage content; put into a high mixer and mix for 2-5 minutes, discharge, and then extrude with a twin-screw Extrude and granulate to produce flame-retardant glass fiber reinforced HDPE / PA12 alloy material with high CTI value and high GWIT value; the processing temperature is 200-220°C, and the screw speed is 30-40Hz; the specific processing conditions are shown in Table 2 As shown, the test results of the prepared samples are shown in Table 3.

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Abstract

The invention discloses a flame-retardant glass fiber-reinforced HDPE / PA12 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 PA12, 6 to 20% of a compound fire retardant, 3 to 15% of antimonony oxide, 20 to 30% of a glass fiber, 2 to 10% of a compatilizer, 0.1 to 1% of an anti-oxidant and 0.1 to 1% of an oxide. The invention also relates to a preparation method for the alloy material, and the method comprises the following steps: weighing the components in proportion, adding the weighed components into a high-speed mixer for mixing for 2 to 5 min, then carrying out discharging and finally carrying out extrusion granulation in a twin-screw extruder, wherein processing 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 CTI value, low precipitation performance, etc.

Description

technical field [0001] The invention relates to an alloy material, in particular to a flame-retardant glass fiber reinforced HDPE / PA12 alloy material with high CTI value and 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 is determined by 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; it has high surface hardness, wear resistance, small friction coefficient, and self-lubrication and noise reduction. It has good low temperature performance and certain heat resistance (it can be used below 100 degrees). Non-toxic, odorless, non-mildew, self-extinguishing, good weather resistance, but poor dyeing. The scientific name of PA12 is polylaurolactam, also known as nylon 12. The b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L77/02C08L25/04C08K13/06C08K3/22C08K7/14C08K3/32C08K3/34
Inventor 郭建鹏朱晓龙
Owner SHANGHAI SUNNY
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