High-strength, high-brightness black and glass fiber reinforced nylon material and preparation method thereof

A high-strength, nylon technology, which is used in the application field of glass fiber reinforced nylon as appearance parts, can solve the problems of flow marks, difficult to reach surface highlights, etc., achieve high gloss and blackness, good dyeing effect, and easy to avoid scratched effect

Inactive Publication Date: 2020-06-16
ZHEJIANG PRET NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the spray-free materials on the market mainly include ABS, PC / ABS, ASA / PMMA, PBT, PA and other materials. Although the types of spray-free materials are widely used, there are still many problems in the application and promotion of spray-free materials. Solution, spray-free materials are mainly non-filled materials. It is difficult to achieve the effect of surface highlight for glass fiber or mineral-filled materials, because the strength of non-filled materials is low. At present, the main application of spray-free materials is still concentrated on Decorative parts that do not require high strength are also limited by the structure of the product. During the injection molding process, spray-free products usually have appearance problems such as flow marks and weld lines, which limit the application of materials. Spray-free materials can obtain good appearance effects It also needs to be applied from the structural design stage

Method used

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  • High-strength, high-brightness black and glass fiber reinforced nylon material and preparation method thereof
  • High-strength, high-brightness black and glass fiber reinforced nylon material and preparation method thereof
  • High-strength, high-brightness black and glass fiber reinforced nylon material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Weigh PA6 7.62kg, bake at 100°C for 4 hours, functional masterbatch: 0.2kg, scratch resistance additive 0.1kg, antioxidant 1098 15g, antioxidant 168 15g, lubricant 50g, mix in a high-speed mixer Evenly, the resin mixture is obtained and set aside;

[0047] Weigh glass fiber 301HP (E) 2kg, set aside.

[0048] The above resin mixture is added into the twin-screw extruder (the diameter of the screw is 35mm, and the length-to-diameter ratio is L / D=40) through the main feeding port, and the glass fiber is added into the twin-screw extruder through the side feeding port. The control temperature of each section of the screw extruder (from the feeding port to the nozzle outlet) is 190°C, 210°C, 225°C, 225°C, 225°C, 220°C, 210°C, 210°C, 210°C, 210°C, 210°C ℃, 210 ℃, the twin-screw extruder speed is 480r / min, the strips are cooled in a water tank, dried by a blast dryer, and pelletized by a pelletizer to obtain a modified nylon product.

[0049] The above materials were dried a...

Embodiment 2

[0051] Weigh 7.62kg of PA66, bake at 100°C for 4 hours, functional masterbatch: 0.2kg, anti-scratch additive 0.1kg, antioxidant 1098 15g, antioxidant 168 15g, lubricant 50g and mix well in a high-speed mixer , to obtain the resin mixture, for subsequent use;

[0052] Weigh glass fiber 301HP (E) 2kg, set aside.

[0053]The above resin mixture is added into the twin-screw extruder (the diameter of the screw is 35mm, and the length-to-diameter ratio is L / D=40) through the main feeding port, and the glass fiber is added into the twin-screw extruder through the side feeding port. The control temperature of each section of the screw extruder (from the feeding port to the nozzle outlet) is 220°C, 240°C, 265°C, 265°C, 265°C, 250°C, 250°C, 250°C, 250°C, 250°C, 250°C ℃, 250 ℃, twin-screw extruder speed is 480r / min, the strips are cooled in a water tank, dried by a blast dryer, and pelletized by a pelletizer to obtain a modified nylon product.

[0054] The above materials were dried at...

Embodiment 3

[0056] Weigh PA6 / 66 7.62kg, bake at 100°C for 4 hours, functional masterbatch: 0.2kg, scratch resistance additive 0.1kg, antioxidant 1098 15g, antioxidant 168 15g, lubricant 50g in a high-speed mixer Mix well to get the resin mixture, set aside;

[0057] Weigh glass fiber 301HP (E) 2kg, set aside.

[0058] The above resin mixture is added into the twin-screw extruder (the diameter of the screw is 35mm, and the length-to-diameter ratio is L / D=40) through the main feeding port, and the glass fiber is added into the twin-screw extruder through the side feeding port. The control temperature of each section of the screw extruder (from the feeding port to the nozzle outlet) is 190°C, 210°C, 225°C, 225°C, 225°C, 220°C, 210°C, 210°C, 210°C, 210°C, 210°C ℃, 210 ℃, the twin-screw extruder speed is 480r / min, the strips are cooled in a water tank, dried by a blast dryer, and pelletized by a pelletizer to obtain a modified nylon product.

[0059] The above materials were dried at 120°C f...

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Abstract

The invention discloses a high-strength, high-brightness black and glass fiber reinforced nylon material and a preparation method thereof. The material is prepared from the following components in percentage by mass: 35-79.5% of nylon, 10-30% of transparent nylon, 10-30% of glass fibers, 0.5-2% of a functional master batch, 0-1% of an antioxidant, 0-1% of a lubricant, and 0-1% of a scratch-resistant auxiliary agent. The glass fiber reinforced nylon material has the beneficial effects that the crystallinity of the nylon material is controlled and an injection molding process is adopted to ensure that the material has higher glossiness, and the self-made functional master batch is added, so that the reinforced nylon material is covered with the glass fibers, and the blackness and the glossiness are improved. The nylon composite material prepared by the invention not only meets the requirements of parts on the mechanical properties of the material, but also meets the requirement that theappearance effect of high brightness black can be achieved without spraying, and solves the problem that the strength and the appearance cannot be considered at the same time.

Description

technical field [0001] The invention relates to the application of glass fiber reinforced nylon as an appearance part, in particular to a high-strength, high-gloss black, glass fiber reinforced nylon material and a preparation method thereof. Background technique [0002] Environmental protection and energy saving are the main trends in the development of automobiles. Spray-free products are becoming more and more popular. Spray-free products refer to products that can achieve the "beautiful" appearance required by painting without spraying and direct one-time injection molding. Spray-free products have good The surface gloss, rich colors, scratch resistance, corrosion resistance, more environmental protection, 100% recyclable, lower comprehensive cost and other characteristics can meet the diversified aesthetic needs, and it is becoming more and more mature in the fields of home appliances and automobiles. [0003] At present, the spray-free materials on the market mainly i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/02C08L77/06C08L77/00C08L83/04C08K13/04C08K7/14C08K3/04C08K5/18C08J3/22C08J5/04
CPCC08J5/043C08J3/22C08J2377/02C08J2377/06C08J2477/00C08J2477/02C08J2477/06C08J2483/04C08K13/04C08K7/14C08K3/041C08K3/04C08K5/18C08K2201/003C08K2201/011C08K2201/004
Inventor 张海生颜瑞祥陈剑锐蔡青陈永东周文
Owner ZHEJIANG PRET NEW MATERIALS
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