Hydrolysis-resistant reinforced flame-retardant PA6-POK alloy material and preparation method thereof

A PA6-POK and alloy material technology, applied in the field of hydrolysis-resistant reinforced flame-retardant PA6-POK alloy material and its preparation, can solve the problems of easy warpage deformation, limited application, high wet volume resistivity, and improve warpage deformation effect

Active Publication Date: 2021-01-08
横店集团得邦工程塑料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the strong water absorption of nylon 6 limits its application in some areas with high humidity
Specifically, for glass fiber reinforced flame-retardant nylon 6 materials on the market, there are several relatively large disadvantages: 1. Poor hydrolysis resistance; 2. Low volume resistivity in wet state; 3. High water absorption; 4. Easy to warp Bending deformation; 5. A large amount of flame retardants are used
However, these technologies use external additives to improve the water absorption, hydrolysis resistance, dimensional stability, wet volume resistivity and dimensional stability of nylon itself, and cannot solve the problem of compatibility between the interfaces of various components. and hydrolysis resistance, and the external additives are easy to migrate and fail
Therefore, the current technology cannot fundamentally solve the defects of reinforced flame-retardant nylon 6
[0004] In addition, the Chinese patent CN107974076A adopts the method of PA6 / POK alloy to solve the problems of low molding efficiency, poor dimensional stability, high wet volume resistivity, and large amount of flame retardant used in traditional PA6 reinforced flame retardant materials. Reinforced flame retardant PA6 / POK alloy material of resin, polyketone resin, flame retardant, flame retardant synergist, compatibilizer, chopped fiber, antioxidant and lubricant
However, the water absorption rate of the material is still high, it is easy to warp and deform, and the wet volume resistivity needs to be improved.

Method used

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  • Hydrolysis-resistant reinforced flame-retardant PA6-POK alloy material and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0034]A hydrolysis-resistant reinforced flame-retardant PA6-POK alloy material, comprising by weight:

[0035]

[0036] Put the above-mentioned materials into the mixer except glass fiber for mixing, put them into the main feeding barrel after mixing, and melt, extrude and granulate through the twin-screw extruder. During the extrusion process, 36 parts of glass fiber pass through the side The feeding method is added, the length-to-diameter ratio of the extruder is 40:1, and the extrusion speed is 300RPM. The temperature of each temperature zone of the extruder is: 220°C in the first zone, 235°C in the second zone, 235°C in the third zone, and 235 in the fourth zone. ℃, five zone 210 ℃, six zone 210 ℃, seven zone 210 ℃, eight zone 210 ℃, head temperature 230 ℃.

Embodiment 2

[0038] A hydrolysis-resistant reinforced flame-retardant PA6-POK alloy material, comprising by weight:

[0039]

[0040]

[0041] Put the above-mentioned materials into the mixer except glass fiber for mixing, put them into the main feeding barrel after mixing, and melt, extrude and granulate through the twin-screw extruder. During the extrusion process, 36 parts of glass fiber pass through the side The feeding method is added, the length-to-diameter ratio of the extruder is 40:1, and the extrusion speed is 300RPM. The temperature of each temperature zone of the extruder is: 220°C in the first zone, 235°C in the second zone, 235°C in the third zone, and 235 in the fourth zone. ℃, five zone 210 ℃, six zone 210 ℃, seven zone 210 ℃, eight zone 210 ℃, head temperature 230 ℃.

Embodiment 3

[0043] A hydrolysis-resistant reinforced flame-retardant PA6-POK alloy material, comprising by weight:

[0044]

[0045] Put the above-mentioned materials into the mixer except glass fiber for mixing, put them into the main feeding barrel after mixing, and melt, extrude and granulate through the twin-screw extruder. During the extrusion process, 36 parts of glass fiber pass through the side The feeding method is added, the length-to-diameter ratio of the extruder is 40:1, and the extrusion speed is 300RPM. The temperature of each temperature zone of the extruder is: 220°C in the first zone, 235°C in the second zone, 235°C in the third zone, and 235 in the fourth zone. ℃, five zone 210 ℃, six zone 210 ℃, seven zone 210 ℃, eight zone 210 ℃, head temperature 230 ℃.

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Abstract

The invention belongs to the technical field of high polymer materials, and discloses a hydrolysis-resistant reinforced flame-retardant PA6-POK alloy material and a preparation method thereof. The hydrolysis-resistant reinforced flame-retardant PA6-POK alloy material comprises the following components in parts by weight: 40-70 parts of nylon resin, 15-45 parts of polyketone resin, 10-20 parts of aflame retardant, 3-10 parts of a synergistic flame retardant, 3-8 parts of an interface modifier, 25-45 parts of glass fibers, 0.4-0.7 part of an antioxidant and 0.4-0.8 part of a lubricant. Comparedwith the prior art, the PA6-POK alloy material has the characteristics of low water absorption, high wet volume resistivity, small warping, excellent water resistance and the like, and the mechanicalproperties of the PA6-POK alloy material can be comparable with those of reinforced flame-retardant PA6, so that the PA6-POK alloy material has wider application fields than reinforced flame-retardant PA6, and can be used for electronic and electrical parts in high-temperature and high-humidity environments.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a hydrolysis-resistant enhanced flame-retardant PA6-POK alloy material and a preparation method thereof. Background technique [0002] Nylon 6 (PA6) has the advantages of good mechanical properties, oil resistance, solvent resistance, wear resistance, etc., and is widely used in electronic appliances, automobiles, home appliances and other industries. However, the strong water absorption of nylon 6 limits its application in some areas with high humidity. Specifically, for glass fiber reinforced flame-retardant nylon 6 materials on the market, there are several relatively large disadvantages: 1. Poor hydrolysis resistance; 2. Low volume resistivity in wet state; 3. High water absorption; 4. Easy to warp 5. A large amount of flame retardant is used. [0003] In order to solve the above problems, the existing technologies generally add low water absorbing agents and anti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/02C08L73/00C08L23/08C08L51/06C08L63/00C08K13/06C08K7/14C08K5/20C08K5/372C08K3/22C08J5/08
CPCC08L77/02C08J5/08C08J2377/02C08J2473/00C08J2423/08C08J2451/06C08J2463/00C08K2201/004C08K2201/016C08K2201/014C08K13/06C08K7/14C08K5/20C08K5/372C08K3/2279Y02E60/10
Inventor 叶敬彪卢津强王晓东周立辉张天浩
Owner 横店集团得邦工程塑料有限公司
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