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A kind of nylon composite material for automotive interior parts with low irritating smell and preparation method thereof

A technology for nylon composite materials and automotive interior parts, which is applied in the field of nylon composite materials for automotive interior parts and its preparation, and can solve the application limitations of flame-retardant reinforced nylon 6, the high melting index of nylon 6 raw materials, and unfavorable industrial production, etc. problem, achieve the effect of reducing production cost, good toughness, and reducing pungent odor

Active Publication Date: 2019-10-25
徐州腾飞工程塑料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most flame retardant reinforced nylon materials are made by adding brominated flame retardant systems to the original nylon 6 materials. However, the volatilization of brominated flame retardants and other small molecules leads to some irritation in such modified materials. sex smell
In order to reduce the pungent smell of brominated flame-retardant reinforced nylon 6 and prevent the pungent smell from exceeding the standard when this kind of material is applied to automotive interior parts, the current method is to inject the flame-retardant reinforced nylon 6 into finished products, and then inject the molded parts Put it in a drying room at about 100°C for 12 hours to reduce the odor of the injection molded parts to the qualified standard and then assemble them on the car. The application of automotive interior parts is limited, and in the extrusion molding process of nylon composite materials, the raw material melt index of nylon 6 is high, which is not conducive to extrusion molding

Method used

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  • A kind of nylon composite material for automotive interior parts with low irritating smell and preparation method thereof
  • A kind of nylon composite material for automotive interior parts with low irritating smell and preparation method thereof
  • A kind of nylon composite material for automotive interior parts with low irritating smell and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] (1) Prepare the mixture:

[0033] 52 parts of nylon 6, 10 parts of flame retardant A, 2 parts of flame retardant B, 0.4 parts of heat stabilizer, 0.7 parts of processing modifier, 3 parts of cold resistance modifier, nanometer metal oxide 1 part, 20 parts of alkali-free glass fiber and 2 parts of coloring agent are measured, added to a mixer and mixed for 8-10 minutes to obtain a mixture;

[0034] (2) Preparation of nylon composite materials for automotive interior parts:

[0035] The mixture is extruded and granulated on a twin-screw extruder. From the feed port to the die head, the temperature of the first zone is 240-250°C, the temperature of the second zone is 230-240°C, the temperature of the third zone is 220-230°C, and the temperature of the fourth zone is 210-210~ 220°C, the temperature of the fifth zone is 200-210°C, the temperature of the sixth zone is 190-200°C, the temperature of the seventh zone is 190-200°C, the temperature of the die head is 220-240°C, t...

Embodiment 2-3

[0036] Example 2-3: According to the process of Example 1, nylon 6, flame retardant A, flame retardant B, heat stabilizer, processing modifier, cold resistance modifier, nanometer metal oxide, and alkali-free glass were changed respectively The parts by weight of each component in fiber, coloring agent or pigment, as shown in table 1:

[0037] Each component weight part of table 1 embodiment 2 and embodiment 3

[0038]

[0039] In the above-mentioned Examples 1-3, the flame retardant A is decabromodiphenylethane; the flame retardant B is antimony trioxide or antimony trioxide and anhydrous zinc borate complex system; the heat stable The agent is a complex system of hindered phenol antioxidants and phosphite antioxidants; the nano-metal oxide is a mixture of nano-titanium dioxide, nano-zirconia, and nano-cerium oxide; the nylon 6 is selected from Guangdong Xinhui Meida It is M2800, in order to make the dispersibility of the product better and reduce the irritating smell of ...

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Abstract

The invention discloses a nylon composite material which is low in pungent smell and is used for automotive upholstery, and a preparation method thereof. The nylon composite material is mainly prepared from, by weight, 52 to 56 parts of nylon 6, 10 to 13 parts of a fire retardant A, 2 to 4 parts of a fire retardant B, 0.4 to 0.6 part of a heat stabilizer, 0.7 to 0.9 part of a processing modifier, 3 to 6 parts of a cold-resistant modifier, 1 to 2 parts of a nano metal oxide, and 20 to 28 parts of alkali-free glass fiber. The preparation method comprises following steps: the raw materials are weighed at the above ratio, and are delivered into a blender mixer for uniform mixing so as to obtain a mixed material; the mixed material is subjected to extrusion granulation using an extruder so as to obtain the nylon composite material. The pungent smell of the nylon composite material is low; flame resistance, thermal stability, aging resistance, and low temperature impact resistance are both relatively excellent; production technology is simple; operation is convenient; the preparation method is suitable for industrialized application; the nylon composite material can be directly used for preparing automotive upholstery via injection molding, after-baking is not needed, so that production cost is reduced, and production efficiency is increased.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a low-pungent-odor nylon composite material for automotive interior parts and a preparation method thereof. Background technique [0002] Automotive interior parts are components that combine safety, functionality, comfort and decoration. The use of plastic materials can reduce weight, reduce costs, improve design flexibility and integration of parts, and improve safety, such as automotive Seat sliders, instrument panels, sunroof flaps, etc., which require the materials to be produced are odorless, tasteless, harmless to the human body, safe and environmentally friendly. Generally, materials added to meet certain performance requirements are harmful to human health. Can not meet people's normal demand for environmental protection and performance. [0003] Nylon 6 is a widely used engineering plastic. It has rich sources and has excellent comprehensive prope...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L77/02C08L101/08C08K13/04C08K5/03C08K3/38C08K3/22B29C48/92
CPCB29C48/92B29C2948/9259B29C2948/92704C08K2201/011C08L77/02C08L2201/02C08L2201/08C08L101/08C08K13/04C08K5/03C08K3/2279C08K2003/387C08K2003/2241C08K2003/2244C08K2003/2213
Inventor 高腾李新忠
Owner 徐州腾飞工程塑料有限公司