Voltage-resistant insulating flame-retardant reinforced nylon 66 engineering plastic

A technology of engineering plastics and voltage resistance, which is applied in the field of voltage-resistant insulation and flame-retardant reinforced nylon 66 engineering plastics and its preparation, can solve problems such as inability to meet voltage-resistant requirements, and achieve improved electrical insulation performance, voltage-resistant performance, and voltage-resistant electrical properties. The effect of excellent insulation properties, good flame retardancy and mechanical properties

Inactive Publication Date: 2013-02-13
惠州市华聚塑化科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for some products with higher requirements, ordinary red phosphorus flame retardant reinforced PA cannot meet its withstand voltage requirements.

Method used

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  • Voltage-resistant insulating flame-retardant reinforced nylon 66 engineering plastic

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] This embodiment is composed of the following components by weight percentage: PA66 resin 48.8%, PPO resin 4%, compatibilizer 4%; red phosphorus flame retardant masterbatch 15%; alkali-free glass fiber 25%; kaolin 2%, Other additives 1.2%.

[0041] Composite materials were prepared by the following methods:

[0042] Step 1. Weigh various raw materials according to the above-mentioned weight fractions, and dry the PA66 resin at 90-110°C for 8-12 hours;

[0043] Step 2. Add calcined kaolin to the high-speed mixer and stir for 2 minutes; add aminosilane coupling agent KH-550 accounting for 5% of the weight of kaolin to the mixing dryer and continue to stir for 2 minutes;

[0044] Step 3. Add the dried PA66 resin and aminosilane coupling agent KH-550 accounting for 0.2% of the weight of the dried PA66 resin into a high-speed mixer and stir for 2 minutes, and then add the kaolin, PPO resin, and compatible Add additives, flame retardants and other additives and continue to s...

Embodiment 2

[0047] PA66 resin 40.8% in embodiment 1, kaolin 10%, other conditions are the same.

Embodiment 3

[0049] The kaolin in embodiment 1 is replaced by mica, and other conditions are the same.

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Abstract

The invention relates to voltage-resistant insulating flame-retardant reinforced nylon 66 engineering plastic. The engineering plastics comprise the following components in percentage by weight: 30-60% of PA 66 resin, 1.5-9% of PPO resin, 2-5% of compatilizer, 10-20% of red phosphorus flame retardant masterbatch, 2-10% of voltage-resistant insulating modified filler particles, 0.01-35% of alkali-free chopped glass fiber, and 1-2% of other auxiliaries. The voltage-resistant insulating modified filler particles include at least one of calcined kaolin, mica and halloysite carbon nanotube, the other auxiliaries comprise aminosilane coupling agent, and the filler particles are treated by the aminosilane coupling agent, which accounts for 5 wt% of the filler particles. The nylon 66 engineering plastic has excellent voltage-resistant insulating property, good mechanical performance and flame retardancy; and can be used for preparing electrical and electronic components with voltage-resistant and flame retardancy requirements.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to a voltage-resistant insulation flame-retardant reinforced nylon 66 engineering plastic and a preparation method thereof. Background technique [0002] With the rapid development of my country's economy, the application of engineering plastics in the electrical and electronic industry has grown rapidly, and nylon (PA) is the most widely used. Glass fiber reinforced PA66 has excellent mechanical properties and heat resistance, but its flame retardancy cannot meet the requirements of the electronic and electrical industry. The addition of a large amount of flame retardants improves the flame retardancy of the material to a certain extent, but the mechanical properties and electrical insulation properties of the material will be greatly affected. For example, the CTI drops from 600V to 250V or even lower, which directly affects the application of materials in the electronic and elec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/06C08L71/12C08K13/06C08K9/06C08K7/00C08K7/14C08K3/34C08K3/04C08K3/02
Inventor 冉进成官炳荣刘胜刘典典官炳桂
Owner 惠州市华聚塑化科技有限公司
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