Lightweight foam for automotive interiors and preparation method of lightweight foam

A technology for automobile interior decoration and light weight, which is applied in the field of preparation of synthetic sponges, can solve problems such as lack of environmental protection, and achieve the effect of fast foaming speed and increased catalytic effect

Inactive Publication Date: 2017-01-04
FUZHOU LIANHONG MOTOR PARTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most of the sponges used in automobile interiors cannot meet the lightweight

Method used

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  • Lightweight foam for automotive interiors and preparation method of lightweight foam
  • Lightweight foam for automotive interiors and preparation method of lightweight foam
  • Lightweight foam for automotive interiors and preparation method of lightweight foam

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A lightweight foamed cotton for automotive interiors, made of material A and material B at a mass ratio of 100:34; material A is made of the following raw materials by weight fraction: polyether polyol 330N 51%, POP-2045 polyurethane resin 41%, front stage catalyst 0.3%, surface catalyst 0.9%, back stage catalyst 0.8%, foam stabilizer 1.2%, foam opener 1.3%, water 3.5%, the sum of the mass fractions of the above raw materials is 100% ; Material B is made of the following raw materials by weight fraction: toluene diisocyanate 80.0%, diphenylmethane diisocyanate 20.0%.

[0018] The preparation method is: use a sponge molding machine to obtain lightweight foamed foam. The specific processing conditions are: mold temperature 55°C, material A temperature 23°C, material B temperature 21°C, flow rate of the filling head 332 g / s, oil pressure 175 Bar, A pump circulation pressure 150Bar, B pump circulation pressure 130 Bar, air pressure 6 kg / cm 2 , Vacuum breaking pressure - 2 ...

Embodiment 2

[0020] A lightweight foamed cotton for automotive interiors, made of material A and material B at a mass ratio of 100:40; material A is made of the following raw materials by weight fraction: polyether polyol 330N 52.3%, POP-2045 polyurethane resin 40%, front-stage catalyst 0.4%, surface catalyst 1.0%, back-stage catalyst 0.6%, foam stabilizer 1.0%, foam opener 1.2%, water 3.5%, the sum of the mass fractions of the above raw materials is 100% ; Material B is made of the following raw materials by weight fraction: toluene diisocyanate 80.0%, diphenylmethane diisocyanate 20.0%.

[0021] The preparation method is: use a sponge molding machine to obtain lightweight foam foam. The specific processing conditions are: mold temperature 60°C, material A temperature 20°C, material B temperature 18°C, flow rate of the filling head 332 g / s, hydraulic pressure 200Bar , A pump cycle pressure 180Bar, B pump cycle pressure 160Bar, air pressure 8kg / cm 2 , Vacuum foam breaking pressure -1Bar, ...

Embodiment 3

[0023] A lightweight foamed cotton for automotive interiors, made of material A and material B at a mass ratio of 100:34-46; material A is made of the following raw materials by weight fraction: polyether polyol 330N 53 %, POP-2045 polyurethane resin 39%, front stage catalyst 0.4%, surface catalyst 0.9%, back stage catalyst 0.8%, foam stabilizer 1.2%, foam opener 1.2%, water 3.5%, the sum of the mass fractions of the above raw materials is 100%; material B is made of the following raw materials by weight fraction: toluene diisocyanate 80.0%, diphenylmethane diisocyanate 20.0%.

[0024] The preparation method is: use a sponge molding machine to obtain lightweight foam foam. The specific processing conditions are: mold temperature 57°C, material A temperature 24°C, material B temperature 22°C, flow rate of the filling head 332 g / s, hydraulic pressure 150Bar , A pump cycle pressure 170Bar, B pump cycle pressure 150Bar, air pressure 7kg / cm 2 , Vacuum breaking pressure - 4 Bar, th...

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Abstract

The invention belongs to the field of preparation of synthetic foam and particularly relates to lightweight foam for automotive interiors and a preparation method of the lightweight foam. The lightweight foam consists of a material A and a material B, wherein the material A is prepared from raw materials in percentage by weight as follows: 51%-53% of polyether glycol 330N, 39%-41% of POP-2045 polyurethane resin, 0.1%-0.2% of a pre-catalyst, 0.5%-0.7% of a surface catalyst, 0.35%-0.6% of a post-catalyst, 1.4%-1.5% of a foam shaping agent, 1.3%-1.5% of a foam opening agent and 3.3%-3.5% of water; the material B is toluene disocynate and diphenyl-methane-diisocyanate. The moisture content, the quantity of the foam shaping agents and the quantity of the foam opening agents in the material A are increased, the pre-catalyst and the post-catalyst are substantially increased, the foaming speed is higher, and the lightweight effect of synthetic foam is realized in combination with improvement of increase of the rotating speed of a foam line B.

Description

technical field [0001] The invention belongs to the field of preparation of synthetic sponges, and in particular relates to a lightweight foamed cotton for automobile interior decoration and a preparation method thereof. Background technique [0002] At present, the development direction of the world's automobiles (mainly cars and new energy vehicles) is lightweight. Lightweight is an important technical measure to improve fuel combustion efficiency and reduce vehicle exhaust emissions, and to achieve energy saving and emission reduction for vehicles. At present, the main ways to reduce the weight of automobiles are as follows: ①Continuous optimization of mainstream specifications of automobiles, under the premise of retaining the main parameters of specifications, improve the structural strength of the vehicle and reduce the consumption of consumables; ②Use lightweight materials. Such as aluminum, magnesium, ceramics, plastics, glass fiber or carbon fiber composite mater...

Claims

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Application Information

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IPC IPC(8): C08G18/76C08G18/48C08G101/00
CPCC08G18/7614C08G18/48C08G18/7671C08G2101/00
Inventor 邓吉雄许芳森李忠君李志杨
Owner FUZHOU LIANHONG MOTOR PARTS
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