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High-performance full-MDI polyurethane mixed component for automobile seats, and preparation method thereof

A polyurethane composite material, a technology for car seats, applied in the field of polymer materials, can solve the problems of reducing the service life of car seats, sitting comfort, poor tear strength, tensile strength, poor resilience, etc. The method is simple and easy to implement, with good resilience and low density.

Active Publication Date: 2017-04-26
SHANDONG INOV POLYURETHANE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This type of foam material has high bearing capacity, low raw material odor, environmental protection and no pollution, so it has been greatly developed; however, the current MDI system car seat has poor resilience, high density, and its tear strength, tensile strength, etc. The performance is relatively poor, and it is easy to break during use, which correspondingly reduces the service life and sitting comfort of the car seat

Method used

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  • High-performance full-MDI polyurethane mixed component for automobile seats, and preparation method thereof
  • High-performance full-MDI polyurethane mixed component for automobile seats, and preparation method thereof
  • High-performance full-MDI polyurethane mixed component for automobile seats, and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Component A is made of raw materials in the following weight percentages:

[0041]

[0042]

[0043] Component B is made of raw materials in the following weight percentages:

[0044]

[0045] Its preparation method is as follows:

[0046] Component A: Weigh 35kg of MC28-02, 30kg of GPOPH45Y and 20kg of PTMG1500 into the reactor for stirring, then add 2kg of YNW-303A and 4kg of H 2 O, 0.5kg of EPK-127, 3kg of GK-350D, 0.5kg of NE300, at room temperature, the rotation speed is 55 rpm, stirred for 1 hour, and the product of component A is obtained;

[0047] Component B: Take 10kg of PTMG2000 and place it in a reactor, raise the temperature to 115°C and dehydrate under vacuum (-0.09MPa) for 1.8 hours, then lower the temperature to 45°C, add 25kg of 44C and 30kg of 0129M, and slowly raise the temperature to 78°C, Insulate and react for 1.5 hours, then add 35kg of PM200, stir for 0.5 hours, take a sample and test, the mass content of -NCO reaches 29.2±0.2%, cool d...

Embodiment 2

[0051] Component A is made of raw materials in the following weight percentages:

[0052]

[0053] Component B is made of raw materials in the following weight percentages:

[0054]

[0055] Its preparation method is as follows:

[0056] Component A: Weigh 40kg of MC28-02, 25kg of GPOPH45Y and 20.5kg of PTMG1500 into the reactor for stirring, then add 4kg of YNW-303A and 3.5kg of H 2 O, 1kg of AK7713, 5kg of Yukol8331, 1kg of DPA, at room temperature, the rotation speed is 50 rpm, and stirred for 1.5 hours to obtain the product of component A;

[0057]Component B: Take 15kg of PTMG2000 and place it in a reaction kettle, heat up to 110°C and dehydrate under vacuum (-0.09MPa) for 1.5 hours, then cool down to 45°C, add 30kg of 44C and 25kg of 0129M, slowly heat up to 75°C, and keep warm React for 1.5 hours, then add 30kg of PM200, stir for 1 hour, take a sample and test, the mass content of -NCO reaches 27.5±0.2%, cool down to 42°C, discharge, and seal for storage.

[00...

Embodiment 3

[0061] Component A is made of raw materials in the following weight percentages:

[0062]

[0063] Component B is made of raw materials in the following weight percentages:

[0064]

[0065] Its preparation method is as follows:

[0066] Component A: Weigh 30kg of MC28-02, 30kg of GPOPH45Y and 25kg of PTMG1500 into the reactor for stirring, then add 4kg of YNW-303A and 4kg of H 2 O, 1kg of AK7713, 5kg of Yukol 8331, 1kg of DPA, at room temperature, the rotating speed is 60 rpm, and stirred for 1 hour to obtain the product of component A;

[0067] Component B: Take 10kg of PTMG2000 and place it in a reactor, raise the temperature to 110°C and dehydrate under vacuum (-0.09MPa) for 2 hours, then cool down to 50°C, add 30kg of 44C and 30kg of 0129M, slowly raise the temperature to 80°C, and keep warm for reaction After 1.5 hours, add 30kg of PM200, stir for 1.2 hours, take a sample and test, the mass content of -NCO reaches 29.4±0.2%, cool down to 42°C and discharge, seale...

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Abstract

The invention belongs to the field of polymeric materials, and concretely relates to a high-performance full-MDI polyurethane mixed component for automobile seats, and a preparation method thereof. The mixed component is prepared through mixing a component A with a component B according to a weight ratio of 100:(65-70), wherein the component A is prepared from polyether polyol A, polyether polyol B, polytetramethylene glycol, a cross-linking agent, a foaming agent, a foam stabilizer, a pore forming agent and a catalyst; and the component B is prepared from polytetramethylene glycol, pure MDI, MDI-50 and crude MDI. The mixed component selects low-volatility and low-atomization reactive raw materials adopts high-molecular weight polyether as the cross-linking agent, and the high-performance material polytetramethylene glycol is introduced to the component A and the component B, so the produced automobile seats have the advantages of low density, good resilience, excellent mechanical performances, good sitting comfortableness, low smell, low content of VOCs, environmental protection and no pollution. The preparation method is simple, and is easy to implement.

Description

technical field [0001] The invention belongs to the field of macromolecular materials, and in particular relates to a high-performance all-MDI polyurethane composite material for car seats and a preparation method thereof. Background technique [0002] High resilience cold-cured polyurethane foam material has excellent mechanical properties (high resilience, low hysteresis loss) and high compression load ratio (sag factor), so it has significant sitting comfort, excellent fatigue resistance, It has a feel similar to the surface of latex, good air permeability, high production efficiency and low energy consumption, and has been widely used in car seats. [0003] At present, there are mainly the following types of polyurethane foam materials for automotive seats: (1) TDI system foam materials. Although this type of foam material has low relative density, large foaming volume, and comfortable handle, it has low bearing capacity, poor resilience, and the toxicity of TDI raw mat...

Claims

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Application Information

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IPC IPC(8): C08G18/76C08G18/65C08G18/66C08G18/40C08G18/48C08J9/08C08G101/00
CPCC08G18/4072C08G18/4812C08G18/4829C08G18/4854C08G18/6564C08G18/6677C08G18/7664C08G18/7671C08G2350/00C08G2110/0083
Inventor 郭勇生徐军殷玉鹏崔玉志
Owner SHANDONG INOV POLYURETHANE
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