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Glass fiber/mineral composite reinforced modified nylon-6 material and preparation method thereof

A glass fiber and modified nylon technology, which is applied in the field of polymer composite materials, can solve the problems of severe molding shrinkage, glass fiber exposure, and poor apparent quality of materials, and achieve the effect of good apparent quality and improved strength

Inactive Publication Date: 2011-01-19
SUZHOU SUNWAY POLYMER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Pure glass fiber reinforced nylon 6, although it can significantly improve the stiffness, strength and thermal properties of nylon 6, but this often leads to the deterioration of the apparent quality of the material, and even exposed glass fibers or floating fibers, Moreover, it also causes severe warping and deformation of the material, which is not conducive to assembly
Although mineral fillers are slightly better than glass fibers in appearance, the toughness of the material is insufficient, and the molding shrinkage is more serious.

Method used

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  • Glass fiber/mineral composite reinforced modified nylon-6 material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Prepare according to the following formula:

[0028] (a) 60 parts by mass of nylon 6

[0029] (b) 25 parts by mass of mineral filler

[0030] (c) 10 parts by mass of glass fiber

[0031] (d) 5 parts by mass of toughening masterbatch

[0032] (e) 0.35 parts by mass of compatibilizer

[0033] (f) 0.9 parts by mass of other additives

[0034] First mix nylon 6 with mineral filler and toughening masterbatch at 1000-2000 rpm for 5-20 minutes at high speed; then add compatibilizer and mix at 1000-2000 rpm for 5-20 minutes at high speed; finally Add other additives and mix at high speed for 5-10 minutes at 1000-2000 r / min to obtain a premix; feed the premix into the twin-screw extruder, and in the special glass fiber port of the twin-screw extruder Glass fiber is added at the place, wherein the temperature of each zone of the screw is 220-270°C, the screw speed is 200-500 rpm, extruded and granulated, and the reinforced modified nylon 6 composite material is obtained. It...

Embodiment 2

[0036] Prepare according to the following formula:

[0037] (a) 60 parts by mass of nylon 6

[0038] (b) 20 parts by mass of mineral filler

[0039] (c) 15 parts by mass of glass fiber

[0040] (d) 5 parts by mass of toughening masterbatch

[0041] (e) 0.35 parts by mass of compatibilizer

[0042] (f) 0.9 parts by mass of other additives

[0043] First mix nylon 6 with mineral filler and toughening masterbatch at 1000-2000 rpm for 5-20 minutes at high speed; then add compatibilizer and mix at 1000-2000 rpm for 5-20 minutes at high speed; finally Add other additives and mix at high speed for 5-10 minutes at 1000-2000 r / min to obtain a premix; feed the premix into the twin-screw extruder, and in the special glass fiber port of the twin-screw extruder Glass fiber is added at the place, wherein the temperature of each zone of the screw is 220-270°C, the screw speed is 200-500 rpm, extruded and granulated, and the reinforced modified nylon 6 composite material is obtained. It...

Embodiment 3

[0045] Prepare according to the following formula:

[0046] (a) 60 parts by mass of nylon 6

[0047] (b) 15 parts by mass of mineral filler

[0048] (c) 20 parts by mass of glass fiber

[0049] (d) 5 parts by mass of toughening masterbatch

[0050] (e) 0.35 parts by mass of compatibilizer

[0051] (f) 0.9 parts by mass of other additives

[0052] First mix nylon 6 with mineral filler and toughening masterbatch at 1000-2000 rpm for 5-20 minutes at high speed; then add compatibilizer and mix at 1000-2000 rpm for 5-20 minutes at high speed; finally Add other additives and mix at high speed for 5-10 minutes at 1000-2000 r / min to obtain a premix; feed the premix into the twin-screw extruder, and in the special glass fiber port of the twin-screw extruder Glass fiber is added at the place, wherein the temperature of each zone of the screw is 220-270°C, the screw speed is 200-500 rpm, extruded and granulated, and the reinforced modified nylon 6 composite material is obtained. It...

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Abstract

The invention belongs to the field of reinforced modified nylon-6 composite materials and relates to a glass fiber / mineral composite reinforced modified nylon-6 material suitable for manufacturing an automobile interior trim part. The material comprises the following components in parts by weight: 45-85 parts of nylon-6, 5-30 parts of mineral filler, 5-30 parts of glass fiber, 5-30 parts of toughened master batch, 0.1-5 parts of compatilizer and 0.1-5 parts of other auxiliary agents. In the invention, the glass fibers and the mineral fillers are simultaneously used for filling the modified nylon-6, and the toughened master batches and a series of auxiliary agents are also added, thus the manufactured product not only obviously improves the strength, the rigidity and the thermal property of the material, but also has better apparent mass.

Description

technical field [0001] The invention belongs to the field of polymer composite materials, and specifically relates to a nylon 6 composite material added with mineral fillers and glass fibers, in particular to a reinforced modified nylon 6 composite material suitable for manufacturing automotive interior parts; the invention also relates to The preparation method of the modified nylon 6 composite material. Background technique [0002] Nylon 6 is widely used in various industries due to its excellent comprehensive properties, and nylon 6 modified by glass fiber and mineral filler has good properties such as high strength, high heat resistance, high fatigue resistance, and low molding shrinkage. It is widely used in automobiles, machinery, home appliances, aviation and military industries, and has been developed into the world's largest engineering plastics. [0003] Nylon 6 modified materials currently on the market are mainly glass fiber or mineral filler filled modified ny...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/02C08K13/04C08K7/14C08K3/26C08K3/34B29B9/06B29C47/92B29C48/92
CPCB29B9/14B29B7/46B29B7/72B29B7/7461B29B7/90B29B9/06B29B9/12B29C48/04
Inventor 顾在春任俊余林华
Owner SUZHOU SUNWAY POLYMER
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