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A kind of glass fiber reinforced nylon 66 composite material and its preparation method and application

A composite material and nylon technology, applied in the field of nylon 66 composite materials, can solve the problems of unsatisfactory alcoholysis resistance, achieve good alcoholysis resistance, improve alcoholysis resistance, and good aging protection

Inactive Publication Date: 2017-05-10
CGN JUNER NEW MATERIALS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the composition has good hydrolysis resistance, its alcoholysis resistance is still unsatisfactory

Method used

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  • A kind of glass fiber reinforced nylon 66 composite material and its preparation method and application
  • A kind of glass fiber reinforced nylon 66 composite material and its preparation method and application
  • A kind of glass fiber reinforced nylon 66 composite material and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～5 and comparative example 1

[0032] Put the dried nylon 66, coupling agent, compatibilizer, primary antioxidant, secondary antioxidant, lubricant, anti-alcoholysis agent into a high-speed mixer and mix at high speed (500 rpm) for 4 minutes, From the first feeder (main feeder) to the twin-screw extruder, glass fiber is fed into the twin-screw extruder from the second feeder (side feeder) to extrude and granulate, the temperature from the feed section to the head The setting order is: 250~260℃, 260~270℃, 270~280℃, 270~280℃, 270~280℃, 270~280℃, 265~275℃, 260~265℃, the temperature of the die head is 260~265℃, the negative pressure at the vacuum port is not less than 0.04MPa, after extrusion, it is water-cooled, pelletized, and then packaged to obtain a glass fiber reinforced nylon 66 composite material, which can be used to prepare the engine intake manifold.

[0033] The formulations of Examples 1-5 and Comparative Example 1 are shown in Table 1 below.

Embodiment 6～10 and comparative example 2、3

[0045] Put the dried nylon 66, coupling agent, compatibilizer, main antioxidant, auxiliary antioxidant, lubricant, anti-alcoholysis agent into a high-speed mixer and mix at high speed (1000 rpm) for 4 minutes, From the first feeder (main feeder) to the twin-screw extruder, glass fiber is fed into the twin-screw extruder from the second feeder (side feeder) to extrude and granulate, the temperature from the feed section to the head The setting order is: 250~260℃, 260~270℃, 270~280℃, 270~280℃, 270~280℃, 270~280℃, 265~275℃, 260~265℃, the temperature of the die head is 260~265℃, the negative pressure at the vacuum port is not less than 0.4MPa, after extrusion, it is water-cooled, pelletized, and then packaged to obtain a glass fiber reinforced nylon 66 composite material, which can be used to prepare engine intake manifolds.

[0046] The formulations of Examples 6-10 and Comparative Examples 2 and 3 are shown in Table 4 below.

[0047] The formula of table 4, embodiment 6~10 and ...

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Abstract

The invention discloses a glass fiber reinforced polyamide 66 composite material. The glass fiber reinforced polyamide 66 composite material comprises the following raw materials in percentage by weight: 50-79% of polyamide 66, 20-49% of glass fiber, 0.1-2% of a coupling agent, 0.5-5% of a compatilizer, 0.1-2% of a primary antioxidant, 0.1-2% of a secondary antioxidant, 0.1-2% of a lubricant and 0.1-3% of an anti-alcoholysis agent, wherein the glass fiber is alkali-free glass fiber with the monofilament diameter of 5-9 micrometers; the anti-alcoholysis agent is polycarbodiimide. According-the glass fiber reinforced polyamide 66 composite material, alkali-free glass fiber with thinner monofilament diameter is adopted to reinforce PA (polyamide) 66, and meanwhile, the anti-alcoholysis agent and other technologies are adopted, so that a better anti-alcoholysis property is obtained, and the glass fiber reinforced polyamide 66 composite material can be used for preparing an intake manifold of an automobile engine. The invention further discloses a preparation method for the glassfibre reinforced polyamide 66 composite material; the preparation method can be realized through a conventional double-screw extruder. The glass fiber reinforced polyamide 66 composite material is simple in preparation, and is beneficial to industrial mass production.

Description

technical field [0001] The invention relates to the field of nylon 66 composite materials, in particular to a glass fiber reinforced nylon 66 composite material, a preparation method thereof, and an application in preparing an automobile engine intake manifold. Background technique [0002] Polyamide resin, the English name is polyamide, referred to as PA, commonly known as nylon (Nylon), is the largest output, most varieties, and most widely used varieties among the five major engineering plastics. The main varieties of nylon are nylon 6 and nylon 66, which are absolutely dominant. Nylon 6 is polycaprolactam, while nylon 66 is polyhexamethylene adipate. Nylon 66 is 12% harder than nylon 6. Among nylons, nylon 66 has the highest hardness and rigidity, but the worst toughness. [0003] The glass fiber-reinforced nylon 66 material used for the intake manifold of an automobile engine is an ideal material to replace metal and can realize the lightweight of the automobile. In ad...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L77/06C08L79/00C08K13/04C08K7/14B29C47/92B29C48/92
CPCB29C48/92C08L77/06C08L2205/03C08L51/06C08L75/00C08K13/04C08K7/14C08K5/1345C08K5/526
Inventor 方万漂黄志杰郑京连田际波张磊彭建文陈铭忆杨丰富
Owner CGN JUNER NEW MATERIALS
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