Ultrahigh-strength, low-warping and low-floating-fiber PA reinforced material and preparation process thereof

An ultra-high-strength, reinforcing material technology, applied to low-floating fiber PA reinforcing material and its preparation process, low-warpage, ultra-high-strength fields, can solve the problems of increasing production costs, general improvement effect, and easy existence of floating fibers. , to achieve the effect of preventing glass fiber exposure, good gloss and excellent mechanical properties

Active Publication Date: 2022-03-22
广州仕天材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above technical solution increases the strength through PA66, increases the processing temperature, and significantly increases the production cost; in addition, the compatibility between glass fiber and nylon is improved by adding other additives, but in fact the combination of mica and silicone powder, or magnesium sulfate whiskers The combination with silicone oil can improve the compatibility of glass fiber and nylon in general, and floating fiber phenomenon is still easy to exist in the process of processing

Method used

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  • Ultrahigh-strength, low-warping and low-floating-fiber PA reinforced material and preparation process thereof
  • Ultrahigh-strength, low-warping and low-floating-fiber PA reinforced material and preparation process thereof
  • Ultrahigh-strength, low-warping and low-floating-fiber PA reinforced material and preparation process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] Ultra-high strength, low warpage, low floating fiber PA reinforcement material, the preparation raw materials are as follows:

[0055] PA6 22 Kg (high melting refers to PA6 12Kg, the melt index is 80g / 10min; low melting refers to PA6 10Kg, the melting index is 40g / 10min)

[0056] Glass fiber 65Kg

[0057] 1250 mesh talcum powder 3Kg

[0058] Functional compatibilizer 5Kg

[0059] Lubricant EBS 0.4Kg

[0060] Antioxidant 1.0Kg.

[0061] The preparation steps of ultra-high strength, low warpage and low floating fiber PA reinforced material are as follows:

[0062] S1. Dry PA6 at 110°C for 3 hours;

[0063] S2. Weigh the glass fiber, functional compatibilizer, lubricant, and antioxidant in proportion, stir in a high-speed mixer for 1 minute, and mix well;

[0064] S3. Add the homogeneously mixed material in S2 into the internal mixer, knead and granulate to obtain the glass fiber compatibilizer mixture;

[0065] S4. Weigh the glass fiber compatibilizer mixture, talc...

Embodiment 2

[0071] Ultra-high strength, low warpage, low floating fiber PA reinforcement material, the preparation raw materials are as follows:

[0072] PA6 20 Kg (high melting refers to PA6 6Kg, the melt index is 80g / 10min; low melting refers to PA6 14Kg, the melting index is 40g / 10min)

[0073] Glass fiber 70Kg

[0074] 1250 mesh talcum powder 2Kg

[0075] Functional compatibilizer 8Kg

[0076] Lubricant EBS 0.4Kg

[0077] Antioxidant 1.0Kg.

[0078] The preparation steps of ultra-high strength, low warpage and low floating fiber PA reinforced material are as follows:

[0079] S1. Dry PA6 at 110°C for 3 hours;

[0080] S2. Weigh the glass fiber, functional compatibilizer, lubricant, and antioxidant in proportion, stir in a high-speed mixer for 1 minute, and mix well;

[0081] S3. Add the homogeneously mixed material in S2 into the internal mixer, knead and granulate to obtain the glass fiber compatibilizer mixture;

[0082] S4. Weigh the glass fiber compatibilizer mixture, talcu...

Embodiment 3

[0088] Ultra-high strength, low warpage, low floating fiber PA reinforcement material, the preparation raw materials are as follows:

[0089] PA630 Kg (high melting means PA6 13Kg, melt index is 90g / 10min; low melting means PA6 17Kg, melting index is 50g / 10min)

[0090] Glass fiber 75Kg

[0091] 1250 mesh talcum powder 5Kg

[0092] Functional compatibilizer 6Kg

[0093] Lubricant EBS 0.5Kg

[0094] Antioxidant 1.2Kg.

[0095] The preparation steps of ultra-high strength, low warpage and low floating fiber PA reinforced material are as follows:

[0096] S1. Dry PA6 at 100°C for 4 hours;

[0097] S2. Weigh the glass fiber, functional compatibilizer, lubricant, and antioxidant in proportion, stir in a high-speed mixer for 3 minutes, and mix well;

[0098] S3. Add the homogeneously mixed material in S2 into the internal mixer, knead and granulate to obtain the glass fiber compatibilizer mixture;

[0099] S4. Weigh the glass fiber compatibilizer mixture, talcum powder, and P...

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Abstract

The invention provides an ultrahigh-strength, low-warpage and low-floating-fiber PA (polyamide) reinforced material. The ultrahigh-strength, low-warpage and low-floating-fiber PA reinforced material is prepared from 20-40 parts of PA6, 55-80 parts of glass fibers, 2-8 parts of mineral powder, 2-8 parts of a functional compatilizer, 0.2-0.6 part of a lubricant and 0.2-1.5 parts of an antioxidant, the functional compatilizer is a maleic anhydride grafted ethylene-octylene copolymer, a maleic anhydride grafted ethylene-propylene copolymer or a maleic anhydride grafted ethylene propylene diene monomer; the PA6 comprises PA6 with a high melt index and PA6 with a low melt index, the melt indexes of the PA6 with the high melt index are 70-100 g / 10 min and 30-50 g / 10 min respectively, the proportion of the PA6 with the high melt index is 40-50%, and the proportion of the PA6 with the low melt index is 40-60%. According to the invention, the ultrahigh glass fiber content (greater than 60%) provides excellent performances such as higher mechanical strength, heat resistance, dimensional stability and the like for the PA reinforced material, and also overcomes the defects of high warping, high floating fiber, low gloss and the like caused by high-content fibers.

Description

technical field [0001] The invention belongs to the field of PA reinforcement materials, and in particular relates to a PA reinforcement material with ultra-high strength, low warpage and low floating fibers and a preparation process thereof. Background technique [0002] Nylon (PA) resin usually needs to add glass fiber to improve the strength of the material. Because PA is strengthened by glass fiber, its strength can reach more than several times of the original. The higher the glass fiber content, the greater the strength and the higher the heat resistance, even comparable to metal materials. Therefore, PA reinforced materials can replace metals for various mechanical parts. Glass fiber reinforced nylon has the advantages of high strength, good toughness, good fatigue resistance, good self-lubrication, high wear resistance, high heat resistance, easy processing, etc. It is widely used in peripheral parts of automobile engines, as well as high strength and Products wit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/02C08L51/06C08K9/02C08K9/04C08K7/14C08K5/20C08K3/34C08J5/08
CPCC08J5/08C08J2377/02C08J2477/02C08J2451/06C08K9/02C08K9/04C08K7/14C08K5/20C08K3/34
Inventor 何子超倪世茂王志鹏陶鹏李敬玉
Owner 广州仕天材料科技有限公司
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