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Efficent curing process of polyurethane material for automotive trim

A polyurethane material and polyurethane technology, applied in the direction of coating, etc., can solve problems such as low curing efficiency, complicated curing process, and unfavorable health

Pending Publication Date: 2021-05-04
平湖华申汽车内饰件有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 1. The curing process is complicated, the curing efficiency is low, the curing effect is poor, and the obtained product has poor wear resistance;
[0006] 2. The foaming process of the base material is complicated, and it is difficult to carry out automatic foaming integrated molding;
[0007] 3. Due to the use of small molecular additives such as foaming agents, the odor of polyurethane foam materials is relatively large, which is not conducive to health;
[0008] 4. Poor sound absorption and sound insulation

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A high-efficiency polyurethane material curing process for automotive interiors, comprising the following steps:

[0034] S1. Coating wear-resistant coating on the surface of automobile interior polyurethane foam material;

[0035] S2, then send into oven and carry out slaking;

[0036] The curing is carried out in three stages, among which the curing temperature of the first stage is 75-95°C, and the curing time is 13-15 hours; the curing temperature of the second stage is 103-117°C, and the curing time is 5-7 hours; the curing temperature of the first stage is 85~95℃, the aging time is 8~12h.

[0037] The preparation technology of described automotive interior polyurethane foam material comprises the following steps:

[0038] S11. Transport the polyurethane granules, antibacterial agent, processing aid, and filler to the twin-screw extruder through a metering pump for melt blending, and extrude to form a polyurethane sheet or plate;

[0039] S12. Then transport the...

Embodiment 2

[0048] A high-efficiency polyurethane material curing process for automotive interiors, comprising the following steps:

[0049] S1. Coating wear-resistant coating on the surface of automobile interior polyurethane foam material;

[0050] S2, then send into oven and carry out slaking;

[0051] The curing is carried out in three stages, the first stage curing temperature is 75°C and the curing time is 15 hours; the second stage curing temperature is 103°C and the curing time is 7 hours; the first stage curing temperature is 85°C and the curing time is 12 hours.

[0052] The preparation technology of described automotive interior polyurethane foam material comprises the following steps:

[0053] S11. Transport the polyurethane granules, antibacterial agent, processing aid, and filler to the twin-screw extruder through a metering pump for melt blending, and extrude to form a polyurethane sheet or plate;

[0054] S12. Then transport the polyurethane sheet or board to the foam mo...

Embodiment 3

[0063] A high-efficiency polyurethane material curing process for automotive interiors, comprising the following steps:

[0064] S1. Coating wear-resistant coating on the surface of automobile interior polyurethane foam material;

[0065] S2, then send into oven and carry out slaking;

[0066] The curing is carried out in three stages, the first stage curing temperature is 95°C and the curing time is 13h; the second stage curing temperature is 117°C and the curing time is 5h; the first stage curing temperature is 95°C and the curing time is 8h.

[0067] The preparation technology of described automotive interior polyurethane foam material comprises the following steps:

[0068] S11. Transport the polyurethane granules, antibacterial agent, processing aid, and filler to the twin-screw extruder through a metering pump for melt blending, and extrude to form a polyurethane sheet or plate;

[0069] S12. Then transport the polyurethane sheet or board to the foam molding machine, a...

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PUM

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Abstract

The invention discloses an efficient curing process of a polyurethane material for automotive trim. The efficient curing process comprises the following steps: S1, coating the surface of a polyurethane foaming material for the automotive trim with a wear-resistant coating; and S2, then feeding the material into a drying oven for curing. Curing is carried out in three stages, in the first stage, the curing temperature is 75-95 DEG C, and the curing time is 13-15 hours; in the second stage, the curing temperature is 103-117 DEG C, and the curing time is 5-7 hours; and in the third stage, the curing temperature is 85-95 DEG C, and the curing time is 8-12 hours. The efficient curing process of the polyurethane material for the automotive trim is simple in procedure, high in curing efficiency and good in curing effect, and the obtained product is excellent in wear resistance; there is little ordor, and body health is facilitated; and the foaming effect is good, foam holes are uniform, the elasticity is good, the mechanical property is high, the sound absorption and insulation effects are good, and the antibacterial effect is good.

Description

technical field [0001] The invention relates to the technical field of preparation of automobile interior decoration products, in particular to a high-efficiency curing process of polyurethane materials for automobile interior decoration. Background technique [0002] Automotive Interior mainly refers to the automotive products used in the interior modification of the car, involving all aspects of the car interior, such as car steering wheel covers, car seat cushions, car floor mats, car perfume, car accessories, interior decorations, storage boxes, etc. etc. are automotive interior products. [0003] Polyurethane foam material is one of the most widely used organic raw materials at present. It is the abbreviation of polyurethanes (PU). It is an organic polymer polymer material with a porous structure. aggregated. The former is darker in color, commonly known as black material, and has a higher viscosity than white material. The latter is lighter in color, commonly known ...

Claims

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Application Information

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IPC IPC(8): C08J9/36C08J9/12C08L75/08
CPCC08J9/365C08J9/122C08J2375/08C08J2203/06
Inventor 张晓伟刘寒寒陈肖林
Owner 平湖华申汽车内饰件有限公司
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