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PA6 composite material as well as preparation method and application thereof

A composite material and composite filler technology, applied in the field of PA6 composite material and its preparation, can solve the problems of irregular surface of the workpiece, uneven aspect ratio of shrinkage, general physical properties of PA6, etc., to improve mechanical properties, horizontal and vertical Uniform shrinkage and excellent mechanical properties

Pending Publication Date: 2022-03-22
ZHEJIANG GEELY HLDG GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

PA6 has the advantages of good fatigue resistance, good heat resistance, excellent dimensional stability, etc., but the physical properties of PA6 are general, the shrinkage ratio is uneven, and the surface of the part is prone to irregularities when PA6 is used to produce parts phenomenon, which limits the application of PA6 in some fields

Method used

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  • PA6 composite material as well as preparation method and application thereof
  • PA6 composite material as well as preparation method and application thereof
  • PA6 composite material as well as preparation method and application thereof

Examples

Experimental program
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preparation example Construction

[0095] The present application embodiment also provides a method of preparing a PA6 composite according to the above, and the preparation method comprises:

[0096] S100: A composite filler of 80 parts by weight to 100 parts by weight of PA6, 8 parts by weight to 12 parts by weight, and 16 parts by weight to 20 parts by weight of basalt fiber, 0.1 parts by weight to 0.5 parts by weight of antioxidants. , Mixed and stir evenly, resulting in a mixture;

[0097] S200: Extruded the mixing material obtained by step S100 to obtain the PA6 composite.

[0098] In the embodiment of the present application, the extrusion granulation of step S200 can be carried out in a twin screw extruder, including six temperature zones that are sequentially arranged, in turn: one region temperature is 200 ° C to 220 ° C, the second region temperature is 240 ° C to 260 ° C, the three zone temperature is 240 ° C to 260 ° C, the four regions temperature is 240 ° C to 260 ° C, the temperature of the five regi...

Embodiment 1

[0106] (1) Preparation of composite filler of rare earth surface modified talc powder and glass beads

[0107] S1: Weigh 300g Lacl 3 · 6h 2 O, 1.6kg acetone, LaCl 3 · 6h 2 O Add to acetone solution to make LaCl 3 Solution;

[0108] S2: LaCl obtained by 400 g of talc, 60g glass microad, 1.2kg Step S1 3 The solution was placed in a beaker with 300 g of a concentrated nitric acid, and the beaker was placed in a water bath of 30 ° C, placed for 10 h, after which the filler was washed with deionized water until the pH of deionized water was neutral, obtained Modified composite filler wet material;

[0109] S3: The modified composite filler moisture obtained by step S2 was dried in a vacuum drying tank of 50 ° C to obtain a compound filler M1 of the rare earth surface modified talc with glass beads.

[0110] (2) SIO 2 Preparation of coated basalt fibers

[0111] S10: It is weighed with potassium sulfate, 6 g of nitrate nitrate, 400 g of basalt fibers, 1.2 kg of deionized water, and mixe...

Embodiment 2

[0120] (1) Preparation of composite filler of rare earth surface modified talc powder and glass beads

[0121] S1: Weigh 400g CECL 3 · 7h 2 O, 2.0kg ethanol, Cecl 3 · 7h 2 O Add to the ethanol solution to make CECL 3 Solution;

[0122] S2: CECL obtained by 500 g of talc, 100g glass microad, 1.2kg Step S1 3 The solution was placed in a beaker with 400 g of a concentrated nitric acid, and the beaker was placed in a water bath in 50 ° C, and the filler was washed with deionized water until the pH of the deionized water was neutralized. Modified composite filler wet material;

[0123] S3: The modified composite filler moisture obtained by step S2 was dried in a vacuum drying tank at 70 ° C to obtain a composite filler M2 of the rare earth surface modified talc with glass beads.

[0124] (2) SIO 2 Preparation of coated basalt fibers

[0125] S10: It is weighed with 60 g of oxidant sulfate, 8 g of nitrate nitrate, 500 g of basalt fibers, 1.6 kg of deionized water, to the reactive vessel...

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Abstract

The invention relates to a PA6 composite material and a preparation method and application thereof, the PA6 composite material comprises the following components in parts by weight: 80-100 parts of PA6, 8-12 parts of a modified composite filler, 16-20 parts of modified basalt fiber and 0.1-0.5 part of an antioxidant, and the modified composite filler is a composite filler of modified talcum powder and glass beads. The PA6 composite material provided by the invention has excellent physical properties and uniform longitudinal and transverse shrinkage.

Description

Technical field [0001] The present application relates not limited to, Background technique [0002] Polyamide 6 (PA6) is a widely used polymer polyester resin. PA6 has good introspectability, good heat resistance, excellent dimensional stability, etc. The phenomenon, which limits the application of PA6 in some areas. Inventive content [0003] The following is an overview of the subject matter described in detail herein. This summary is not to limit the scope of protection of the present application. [0004] The present application provides a PA6 composite material and a preparation method thereof, and the PA6 composite material has excellent physical properties, and the vertical and horizontal shrinkage is more uniform. [0005] The present application provides a PA6 composite, including the following components: [0006] [0007] The modified composite filler is a modified talc with a composite filler of glass beads. [0008] In the embodiment of the present application, t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/02C08K9/02C08K3/34C08K7/20C08K9/10C08K7/10
CPCC08K9/02C08K3/34C08K7/20C08K9/10C08K7/10C08L77/02
Inventor 李卫红张元君孔俊
Owner ZHEJIANG GEELY HLDG GRP CO LTD
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