Automobile interior decorative part and preparation method thereof

A technology for automobile interior parts and epoxy resin, which is applied in the field of automobile manufacturing, can solve the problems of polluted environment, increased brittleness of composite resin, decreased impact resistance, etc., and achieves improved flame retardant and smoke suppression performance, excellent flame retardant performance, The effect of high strength flame retardant properties

Inactive Publication Date: 2018-11-27
ANHUI HAOSEN NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are the following disadvantages: (1) Since the density of glass fiber cloth and glass fiber mat is more than twice that of epoxy resin, the proportion of composite resin is greatly increased, and with the increase of the above-mentioned filler ratio, the density of composite resin Increased brit

Method used

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  • Automobile interior decorative part and preparation method thereof

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Example Embodiment

[0029] At the same time, the present invention also provides a method for preparing the flame-retardant composite resin according to the present invention, which includes the following steps:

[0030] (1) Mix the chlorine source, epoxy resin and catalyst uniformly in the first part of the organic solvent, and then heat and reflux at 80-120°C for 1-8h to obtain mixed system 1;

[0031] (2) Add polyether polyol and the first part of the chain extender to the mixed system 1, and then react at 60-80°C for 0.5-5h to obtain the mixed system 2;

[0032] (3) Add isocyanate, reinforcing fiber, second part of chain extender, surfactant and second part of organic solvent to mixed system 2, after reacting at 80~100℃ for 2~6h, adding curing agent, after curing and forming , Get flame-retardant composite resin.

[0033] According to the present invention, preferably, the weight ratio of the first part of organic solvent to the second part of organic solvent is (1.66-5):1.

[0034] According to the p...

Example Embodiment

[0044] Example 1

[0045] (1) Preparation of composite resin:

[0046] Mix 12g phosphorus pentachloride, 100g novolac epoxy resin and 10g triethylbenzylammonium chloride in 100g dimethyl sulfoxide, and then heat and reflux at 100°C for 6h to obtain mixed system 1;

[0047] Add 25g of polytetrahydrofurandiol and 4g of ethylene glycol to the mixed system 1, and then react at 75°C for 2h to obtain the mixed system 2;

[0048] Add 30g of isocyanate, 10g of alumina whiskers (80nm in diameter and 5μm in length), 2g of ethylene glycol, 5g of sodium laureth sulfate and 50g of dimethyl sulfoxide to the mixed system 2. After reacting at 90°C for 4 hours, 12g of 2,4,4-trimethylhexamethylenediamine was added, and after curing and forming, a flame-retardant composite resin was obtained.

[0049] (2) Preparation of automotive interior parts: Put polyester fabric and flame-retardant composite resin in the mold, under the conditions of clamping force of 700T, injection pressure of 3bar, pressure switc...

Example Embodiment

[0050] Example 2

[0051] (1) Preparation of composite resin:

[0052] 8g phosphorus oxychloride, 100g bisphenol A epoxy resin and 10g triethylbenzylammonium bromide are mixed uniformly in 120g ethyl acetate, and then heated to reflux at 100°C for 4h to obtain mixed system 1;

[0053] Add 15g polytetrahydrofurandiol and 1.5g 2-methyl-1,3-propanediol to mixed system 1, and then react at 70° C. for 3 hours to obtain mixed system 2;

[0054] Add 18g isocyanate, 5g aluminum nitride whiskers (80nm in diameter and 8μm in length), 0.5g 2-methyl-1,3-propanediol, 3g ammonium lauryl sulfate and 30g ethyl acetate to the mixed system 2, After reacting at 80° C. for 4 hours, 12 g of 1,14-tetradecane diamine was added, and after curing and forming, a flame-retardant composite resin was obtained.

[0055] (2) Preparation of automotive interior parts: Put the spandex fabric and flame-retardant composite resin in the mold, under the conditions of clamping force of 750T, injection pressure of 4bar, pres...

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Abstract

The invention relates to the technical field of automobile manufacturing, and concretely to an automobile interior decorative part and a preparation method thereof. The automobile interior decorativepart includes a fabric and composite resin connected to the fabric in an injection moulding manner. The composite resin is prepared by the following raw materials based on 100 parts of epoxy resin, byweight: 100 parts of epoxy resin, 5-20 parts of a chlorine source, 10-40 parts of polyether polyol, 12-48 parts of isocyanate, 5-12 parts of a catalyst, 3-15 parts of reinhanced fibers, 1-10 parts ofa chain extender, 2-8 parts of a surfactant, 10-15 parts of a curing agent, and 80-200 parts of an organic solvent. According to the method, the epoxy resin is modified by using the chlorine source so as to improve the flame retardant and smoke suppression properties of the epoxy resin. The epoxy resin continuously reacts with the polyether polyol and the isocyanate to produce the composite resinof the epoxy resin and polyurethane. Through the synergistic effect of the epoxy resin and the polyurethane, the composite resin can have high toughness, high strength and excellent flame retardancy.

Description

technical field [0001] The invention relates to the technical field of automobile manufacturing, in particular to an automobile interior trim and a preparation method thereof. Background technique [0002] With the rapid development of the world economy and the continuous improvement of people's lives, the automobile industry is developing rapidly, the production of cars is changing with each passing day, and the car models are constantly being updated. People's requirements for cars are not only the beautiful appearance, but also the comfort, integrity and functionality of the interior decoration. It is required that these materials not only have the characteristics of heat insulation, noise reduction, shock resistance, flame retardancy, aesthetics and practicality, but also require structural door panel materials and other structural interior materials of some functional parts such as CD boxes and instrument boxes to have the following requirements (1) It has certain impa...

Claims

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Application Information

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IPC IPC(8): C08L63/00C08L75/08C08K7/08C08K7/04C08K7/10
CPCC08K2201/003C08K2201/004C08L63/00C08L2201/02C08L75/08C08K7/08C08K7/04C08K7/10
Inventor 翟彬
Owner ANHUI HAOSEN NEW MATERIAL TECH CO LTD
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