A kind of reinforced nylon 6 material resistant to warping deformation and preparation method thereof

A technology of nylon and warping, which is applied in the field of chemical materials, can solve problems such as single method and change the degree of warping and warping of nylon 6 composite materials, and achieve the effects of low process cost, making up for anisotropy problems, and improving mechanical properties

Active Publication Date: 2020-11-24
黑龙江鑫达新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In the above patent documents, different methods are used to improve the glass fiber reinforced nylon 6 composite and change the subsequent warping phenomenon, but the way to solve the problem is single, and the degree of warping deformation of the nylon 6 composite material is limited.

Method used

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  • A kind of reinforced nylon 6 material resistant to warping deformation and preparation method thereof
  • A kind of reinforced nylon 6 material resistant to warping deformation and preparation method thereof
  • A kind of reinforced nylon 6 material resistant to warping deformation and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Example 1 Reinforced nylon 6 material and its preparation

[0043]

[0044] The viscosity of the nylon 6 is 2.6;

[0045] The glass fiber is an alkali-free and untwisted continuous glass fiber with an average diameter of 8 μm;

[0046] The calcium carbonate whiskers have an average diameter of 0.3 μm and an average length of 50 μm;

[0047] The average length of the aramid fibers is 2 mm, and the average diameter is 15 μm;

[0048] The mica is a natural mineral powder with an average particle size of 20 μm.

[0049] Preparation:

[0050] (1) Surface treatment of whiskers: Mix calcium carbonate whiskers at 1800rpm for 3.5min to open aggregates, then add 10% KH-550 ethanol solution while stirring at the same speed, mix and stir for 8min, and dry at 60°C for 12h ,spare.

[0051] (2) Surface treatment of aramid fiber: After washing the aramid fiber three times with absolute ethanol, dry it at 60°C for 3 hours, add the remaining 10% KH-550 ethanol solution, dry it at 6...

Embodiment 2

[0054] Example 2 Reinforced nylon 6 material and its preparation

[0055]

[0056] The viscosity of the nylon 6 is 2.5;

[0057] The glass fiber is an alkali-free and untwisted continuous glass fiber with an average diameter of 12 μm;

[0058] The calcium carbonate whiskers have an average diameter of 0.5 μm and an average length of 60 μm;

[0059] The average length of the aramid fiber is 1.0 mm, and the average diameter is 15 μm;

[0060] The mica is a natural mineral powder with an average particle size of 80 μm.

[0061] Preparation:

[0062] (1) Surface treatment of whiskers: Calcium carbonate whiskers were mixed at 1800rpm for 4 minutes to open the aggregates, then added 10% KH-550 ethanol solution while stirring at the same speed, mixed and stirred for 8 minutes, and dried at 70°C for 11 hours. spare.

[0063] (2) Surface treatment of aramid fibers: After washing the aramid fibers twice with absolute ethanol, dry them at 70°C for 2.5 hours, add the remaining 10%...

Embodiment 3

[0066] Example 3 Reinforced nylon 6 material and its preparation

[0067]

[0068] The viscosity of the nylon 6 is 2.0;

[0069] The glass fiber is an alkali-free and untwisted continuous glass fiber with an average diameter of 10 μm;

[0070] The calcium carbonate whiskers have an average diameter of 0.8 μm and an average length of 100 μm;

[0071] The average length of the aramid fibers is 0.6 mm, and the average diameter is 10 μm;

[0072] The mica is a natural mineral powder with an average particle size of 5 μm.

[0073] Preparation:

[0074] (1) Surface treatment of whiskers: Calcium carbonate whiskers are mixed at 2000rpm for 3 minutes to open the aggregates, then add 8% KH-560 ethanol solution while stirring at the same speed, mix and stir for 10 minutes, and dry at 75°C for 10 hours. spare.

[0075] (2) Surface treatment of aramid fiber: After washing the aramid fiber twice with absolute ethanol, dry it at 75°C for 2 hours, add the remaining 8% KH-560 ethanol ...

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Abstract

The invention provides a bend deformation resistant reinforced nylon 6 material and a preparation method thereof. The material is prepared from, by weight, 35-65 parts of nylon 6, 15-25 parts of glassfiber, 7-20 parts of calcium carbonate crystal whiskers, 8-15 parts of aramid fiber, 2-15 parts of mica and 5-20 parts of other auxiliaries. Due to a double-screw extruder, the materials are molten and blended to prepare the reinforced nylon 6 material with the excellent dimensional stability, the good bend deformation resistance, the quite good rigidity and the high heat resistance.

Description

technical field [0001] The invention belongs to the field of chemical materials, and relates to a nylon composite material and a preparation method thereof, in particular to a warping-resistant reinforced nylon 6 material and a preparation method thereof. Background technique [0002] Nylon (Nylon) is the common name of polyamide (PA, Polyamide), which is obtained by polycondensation of dibasic acid and diamine or amino acid, and is a general term for resins containing repeated amide groups (-NHCO-) ​​in the molecular chain . Nylon varieties include: PA66, PA6, PA12, PA11, PA46, PA610, PA1010, PA612, PA6T and special nylon. Among them, PA66 and PA6 occupy an absolute dominant position in nylon products. [0003] Nylon 6 has excellent mechanical properties, wear resistance, oil resistance, weak acid and weak alkali resistance, and is widely used in automobiles, electronic appliances and other fields. However, due to its strong polarity, high water absorption, poor dimensio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L77/02C08L77/10C08K13/06C08K9/06C08K7/14C08K7/08C08K3/34
CPCC08K2201/003C08K2201/004C08L77/02C08L2201/08C08L2205/16C08L77/10C08K13/06C08K9/06C08K7/14C08K7/08C08K3/34
Inventor 于浩袁丽娟林航代汝军韩杰
Owner 黑龙江鑫达新材料有限公司
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