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Environment-friendly flame-retardant polyurethane foam material for bumper and preparation method

A technology of foaming materials and polyurethane, which is applied in the field of environmentally friendly flame-retardant polyurethane foaming materials for bumpers and its preparation, and can solve problems such as bumper strength not achieving ideal results, potential safety hazards, and short escape time for personnel

Inactive Publication Date: 2017-10-20
YANGZHONG TIANZHENG SYNTHETIC MATERIAL RES CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The strength of traditional bumpers usually cannot achieve ideal results. In the event of an accident, it is difficult to provide ideal protection for the body and people. Also, due to poor flame retardancy, the escape time of personnel is short, and there is a great potential safety hazard.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] An environmentally friendly flame-retardant polyurethane foam material for a bumper, comprising the following preparation steps: firstly, a composite material is prepared in parts by mass:

[0019] Polyether 835: 30 parts;

[0020] Polyester 3360: 65 parts;

[0021] Reinforced glass fiber: 200 parts;

[0022] Silicone oil: 3 parts;

[0023] Catalyst A33: 1.2 parts;

[0024] Catalyst DY828: 1.2 parts;

[0025] Water: 3.5 parts;

[0026] Flame retardant DMMP: 35 parts.

[0027] Add the above materials into the reaction kettle for mixed reaction, wherein the silicone oil is silicone oil AK-8803, the stirring speed is 130r / min, and the stirring time is 5h to obtain the combined material, and then the acetonitrile polyester and the combined material are mixed at a ratio of 1:1.6 The mass ratio of the mixture is evenly mixed to obtain the environmentally friendly flame-retardant polyurethane foam material for the bumper.

Embodiment 2

[0029] An environmentally friendly flame-retardant polyurethane foam material for a bumper, comprising the following preparation steps: firstly, a composite material is prepared in parts by mass:

[0030] Polyether 835: 32.5 parts;

[0031] Polyester 3360: 67.5 parts;

[0032] Reinforced glass fiber: 225.5 parts;

[0033] Silicone oil: 3.25 parts;

[0034] Catalyst A33: 1.5 parts;

[0035] Catalyst DY828: 1.6 parts;

[0036] Water: 3.65 parts;

[0037] Flame retardant DMMP: 36.5 parts.

[0038] Put the above materials into the reaction kettle for mixed reaction, wherein the silicone oil is silicone oil AK-8803, the stirring speed is 140r / min, and the stirring time is 4.5h to obtain the combined material, and then the acetonitrile polyester and the combined material are mixed according to 1: The mass ratio of 1.6 is uniformly mixed to obtain the environmentally friendly flame-retardant polyurethane foam material for the bumper.

Embodiment 3

[0040] An environmentally friendly flame-retardant polyurethane foam material for a bumper, comprising the following preparation steps: firstly, a composite material is prepared in parts by mass:

[0041] Polyether 835: 35 parts;

[0042] Polyester 3360: 70 parts;

[0043] Reinforced glass fiber: 250 parts;

[0044] Silicone oil: 3.5 parts;

[0045] Catalyst A33: 1.8 parts;

[0046] Catalyst DY828: 2 parts;

[0047] Water: 3.8 parts;

[0048] Flame retardant DMMP: 38 parts.

[0049] Add the above materials into the reaction kettle for mixed reaction, wherein the silicone oil is silicone oil AK-8803, the stirring speed is 150r / min, and the stirring time is 4h to obtain the combined material, and then the acetonitrile polyester and the combined material are mixed at a ratio of 1:1.6 The mass ratio of the mixture is evenly mixed to obtain the environmentally friendly flame-retardant polyurethane foam material for the bumper.

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PUM

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Abstract

The invention discloses an environment-friendly flame-retardant polyurethane foam material for a bumper and a preparation method. The environment-friendly flame-retardant polyurethane foam material for the bumper is prepared from the following ingredients in proportion by mass: acetonitrile polyester and a composite material, wherein the proportion of the acetonitrile polyester to the composite material is 1 to 1.6. The composite material is prepared from the following ingredients in parts by mass: 30-35 parts of polyether 835, 65-70 parts of polyester 3360, 200-250 parts of strengthened glass fiber, 3-3.5 parts of silicone oil, 1.2-1.8 parts of a catalyst A33, 1.2-2 parts of a catalyst DY828, 3.5-3.8 parts of water and 35-38 parts of a flame retardant DMMP (dimethyl methyl phosphonate), wherein silicone oil AK-8803 is used as the silicone oil. The preparation method comprises the following steps of adding the ingredients of the composite material in a reaction kettle to carry out mixed reaction, keeping the stirring speed at 130-150r / min, stirring for 4-5h to obtain the composite material, then mixing the acetonitrile polyester and the composite material evenly in the proportion by weight of 1 to 1.6 to prepare the environment-friendly flame-retardant polyurethane foam material for the bumper. After the materials and method are adopted, the prepared environment-friendly flame-retardant polyurethane foam material for the bumper is flame-retardant, high-temperature-resistant, high in flame retardance and strength, long in service life, and environment-friendly.

Description

technical field [0001] The invention relates to an environment-friendly flame-retardant polyurethane foam material for a bumper and a preparation method thereof, belonging to the field of automobiles. Background technique [0002] At present, with the development of the automobile industry and the enhancement of people's awareness of safety and environmental protection, people's requirements for auto parts have also increased significantly. As a part of safety precautions, people have stricter requirements for bumpers. High temperature resistance, high flame retardancy, high strength, light weight, long service life, and high environmental protection characteristics. The strength of traditional bumpers usually cannot achieve ideal results. In the event of an accident, it is difficult to provide ideal protection for the body and people. Also, due to poor flame retardancy, the escape time of personnel is short, and there is a great potential safety hazard. . Therefore, explo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/40C08G18/48C08G18/42C08K7/14C08K5/521C08J9/08C08G101/00
CPCC08G18/4018C08G18/42C08G18/48C08K5/521C08K7/14C08G2110/0083
Inventor 朱章娣朱凌宇纪朝根
Owner YANGZHONG TIANZHENG SYNTHETIC MATERIAL RES CENT
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