Polyurethane composite material applied to slow rebound damping pad and preparation method thereof

A technology of polyurethane composite material and vibration damping pad, applied in the field of polyurethane application, can solve the problems of narrow adjustment range of vibration damping sheet density and hardness, single appearance and color, etc.

Active Publication Date: 2018-01-23
SHANDONG INOV POLYURETHANE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The density and hardness adjustment range of the produced vibration damping sheet is narrow, and the appearance color is single

Method used

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  • Polyurethane composite material applied to slow rebound damping pad and preparation method thereof
  • Polyurethane composite material applied to slow rebound damping pad and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] (1) Preparation of component A: Weigh 50kg of polyether polyol A (EP-330NG, Shandong Bluestar Dongda Chemical Co., Ltd.), 40kg of (SR-308, Kelia Polyol Co., Ltd.), CHP- H45 (Jiangsu Changhua Polyurethane Technology Co., Ltd.) 10kg. Ethylene glycol 6kg, organic silicon surfactant DC193 (American Gas Chemical Products Co., Ltd.) 0.5kg, AK-7703 (American Gas Chemical Products Co., Ltd.) 0.5kg, tertiary amine catalyst A-33 and delayed catalyst C-225 1.5kg and 1.5kg respectively, placed in the reactor and stirred for 20 minutes, after mixing evenly, discharged and sealed for storage.

[0037] (2) Preparation of component B: Weigh 10kg of polyether polyol B (EP3600, Shandong Bluestar Dongda Chemical Co., Ltd.), add at a temperature of 50-60°C, add MDI-50 (commercially available, Yantai Wanhua Polyurethane Co., Ltd.) 50kg, MDI-100 (commercially available, Yantai Wanhua Polyurethane Co., Ltd.) 10kg, M20S (commercially available, Shanghai BASF Co., Ltd.) 30kg, slowly raise the ...

Embodiment 2

[0040] (1) Preparation of component A: Weigh 55kg of polyether polyol A (ED-28, Shandong Bluestar Dongda Chemical Co., Ltd.), 20kg of (SR-308, Kelia Polyol Co., Ltd.), (DL -400, Shandong Bluestar Dongda Chemical Co., Ltd.) 20kg, diethylene glycol 6kg, organic silicon surfactant AK-7703 (American Gas Chemical Products Co., Ltd.) 0.5kg, tertiary amine catalyst A-33 and delayed Catalyst C-225 is 1kg and 1kg respectively, blowing agent HCFC-141B is 2kg, placed in the reaction kettle and stirred for 30min, after mixing evenly, discharge the material and seal it for storage.

[0041] (2) Preparation of component B: Weigh 15kg of polyether polyol B (ED28, Shandong Bluestar Dongda Chemical Co., Ltd.), add at a temperature of 50-60°C, add MDI-50 (commercially available, Yantai Wanhua Polyurethane Co., Ltd.) 60kg, PM200 (commercially available, Wanhua Chemical Co., Ltd.) 25kg, slowly warming up to 70°C, heat preservation reaction for 40 minutes, sampling and testing, the mass content of...

Embodiment 3

[0044] (1) Preparation of component A: Weigh 45kg of polyether polyol A (ED-28, Shandong Bluestar Dongda Chemical Co., Ltd.), (SR-308, 25kg of Kelia Polyol Co., Ltd., CHP-H45 (Jiangsu Changhua Polyurethane Technology Co., Ltd.) 10kg, glycerin 3kg, organic silicon surfactant (American Gas Chemical Products Co., Ltd.) AK-7703 (American Gas Chemical Products Co., Ltd.) 1kg, tertiary amine catalyst A-33 and delayed class Catalyst C-225 is 1.5kg and 1.5kg respectively, foaming agent water is 5kg, placed in the reaction kettle and stirred for 25min, after mixing evenly, the material is discharged and sealed for storage.

[0045](2) Preparation of component B: Weigh 20kg of polyether polyol B (ED-28, Shandong Bluestar Dongda Chemical Co., Ltd.), add at a temperature of 50-60°C, add MDI-50 (commercially available, Yantai Wan Hua Polyurethane Co., Ltd.) 50kg, M20S (commercially available, Shanghai BASF Co., Ltd.) 30kg, slowly warming up to 75°C, holding the heat for 60 minutes, samplin...

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Abstract

The invention relates to a polyurethane mixed component applied to a slow-rebound damping pad and a preparation method of the polyurethane mixed component and belongs to the technical field of polyurethane application. The polyurethane mixed component applied to the slow-rebound damping pad is composed of a component A and a component B, and the weight ratio of the component A to the component B is 100 (50-60); the component A is composed of polyether polyol A, polypolyols, a cross-linking agent, a chain extender, a foam stabilizer, a catalyst and a foaming agent; the component B is composed of polyether polyol B and isocyanate. The pad made of the polyurethane mixed component is good in rebound effect, and the shock absorption capacity and the hand feeling are improved; the invention further provides a preparation method which is simple, easy to conduct and capable of saving energy and protecting the environment.

Description

technical field [0001] The invention relates to a polyurethane composite material applied to a slow rebound damping cushion block and a preparation method thereof, belonging to the technical field of polyurethane application. Background technique [0002] With the development of modern industry, vibrating tools and high-power machines that generate strong vibrations are increasing, and the vibration hazards caused by various mechanical equipment during operation and work are becoming more and more serious. The broadband random excitation brought by vibration and noise will cause the multi-resonant peak response of the structure, which directly affects the normal operation of electronic devices, instruments and meters. [0003] The application of vibration damping pads is mainly to use the unique viscoelasticity of polymer materials to convert kinetic energy into heat energy during the vibration process, so as to achieve the purpose of reducing the amplitude. Since polyureth...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G18/40C08G18/48C08G18/63C08G18/65C08G18/66C08J9/14
CPCC08G18/4072C08G18/4808C08G18/632C08G18/6564C08G18/6674C08G2101/00C08G2350/00C08J9/143C08J2203/04C08J2375/08C08G2110/0066C08G2110/0083
Inventor 孙清峰甘经虎王翠李海潮
Owner SHANDONG INOV POLYURETHANE
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