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A kind of palm oil-based polyurethane porous material and preparation method thereof

A technology of porous material and palm oil, applied in the field of palm oil-based polyurethane porous material and palm oil-based polyurethane porous material preparation, can solve problems such as large environmental pollution, reduce environmental pollution, ensure sound absorption performance and compression performance, and improve the Effects of low frequency sound absorption and compression performance

Active Publication Date: 2020-08-28
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the polyurethane sound-absorbing materials used in automobiles have good sound-absorbing effects in the high-frequency range, but the raw materials for their preparation are all extracted from petroleum, which pollutes the environment greatly, and with the increasing scarcity of petroleum resources, It is necessary to use other environmentally friendly raw materials to replace petrochemical raw materials to prepare polyurethane

Method used

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  • A kind of palm oil-based polyurethane porous material and preparation method thereof
  • A kind of palm oil-based polyurethane porous material and preparation method thereof
  • A kind of palm oil-based polyurethane porous material and preparation method thereof

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preparation example Construction

[0036] like figure 1 Shown, a kind of palm oil based polyurethane porous material preparation method comprises the steps:

[0037] Step 1, take the following raw materials according to the mass fraction:

[0038] Palm oil polyol: 43-49 parts, polyether polyol: 51-57 parts, foam stabilizer: 0.6 parts, triethanolamine: 2.5 parts, catalyst A1: 0.05 parts, catalyst A33: 1.0 parts, deionized water: 2.5 parts share;

[0039] Wherein, the hydroxyl value scope of described palm oil polyol is 170~200mg KOH / g;

[0040] Step 2, adding the raw material into the stirring device, and 1 Stir to prepare mixture A, and let it stand for 3 to 5 minutes; wherein, the speed n 1 =1500rpm;

[0041] Step 3, add 30 to 35 parts of polymerized MDI, and 2 Stir to obtain mixture B, speed n 2 =1300rpm;

[0042] Step 4: Pour the mixture B into the mold for free foaming, put it into the incubator for curing for 2 hours, and set the temperature of the incubator to 50°C.

[0043] Step 5. After standin...

experiment example 1

[0045] Step 1, take the following raw materials according to the mass fraction:

[0046] Palm oil polyol: 43 parts, polyether polyol: 57 parts, foam stabilizer: 0.6 parts, triethanolamine: 2.5 parts, catalyst A1: 0.05 parts, catalyst A33: 1.0 parts, water: 2.5 parts;

[0047] Wherein, the hydroxyl value scope of described palm oil polyol is 170~200mg KOH / g;

[0048] Step 2. Add the raw materials into the stirring device, and 1 =1500rpm is stirred, and mixture A is obtained, and left standstill;

[0049] Step 3, add 30 to 35 parts of polymerized MDI, and 2 =1300rpm is stirred, obtains mixture B;

[0050] Step 4. Pour the mixture B into the mold for free foaming, and put it into an incubator for curing. The temperature of the incubator is set at 50°C.

experiment example 2

[0052] Step 1, take the following raw materials according to the mass fraction:

[0053] Palm oil polyol: 46 parts, polyether polyol: 54 parts, foam stabilizer: 0.6 parts, triethanolamine: 2.5 parts, catalyst A1: 0.05 parts, catalyst A33: 1.0 parts, water: 2.5 parts;

[0054] Wherein, the hydroxyl value scope of described palm oil polyol is 170~200mg KOH / g;

[0055] Step 2. Add the raw materials into the stirring device, and 1 =1500rpm is stirred, and mixture A is obtained, and left standstill;

[0056] Step 3, add 30 to 35 parts of polymerized MDI, and 2 =1300rpm is stirred, obtains mixture B;

[0057] Step 4. Pour the mixture B into the mold for free foaming, and put it into an incubator for curing. The temperature of the incubator is set at 50°C.

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Abstract

The invention discloses a palm-oil-based polyurethane porous material. The palm-oil-based polyurethane porous material is prepared from, by weight, 43-49 parts of palm oil polyalcohols, 51-57 parts ofpolyether polyalcohols, 0.6 part of a foam stabilizer, 2.5 parts of triethanolamine, 0.05 part of a catalyst A1, 1.0 part of a catalyst A33, 2.5 parts of deionized water and 30-35 parts of polymericMDI, wherein the hydroxyl value of the palm oil polyalcohols is within the range of 170-200 mg KOH / g. According to the palm-oil-based polyurethane porous material, the palm oil polyalcohols are utilized for replacing petroleum polyalcohols to prepare the polyurethane sound absorbing material, the environmental pollution is reduced, and the material has a better low-frequency sound absorbing effectand better compression performance. The invention further provides a preparing method of the palm-oil-based polyurethane porous material.

Description

technical field [0001] The invention relates to the field of acoustic materials for automobiles, in particular to a palm oil-based polyurethane porous material and a preparation method for the palm oil-based polyurethane porous material. Background technique [0002] With the continuous progress of society and the rapid development of economy, automobiles have become an indispensable means of transportation in people's lives. At the same time, people's requirements for the comfort and safety of cars are getting higher and higher. As one of the three major pollution sources, noise pollution not only affects the comfort of cars but also affects the health of drivers and passengers. Therefore, it is necessary to take necessary measures to Reduce noise inside the car. [0003] At present, the common measure of noise reduction in the car is to use acoustic packaging materials. The mechanism is to consume sound energy through the vibration and friction of the air, thereby reducin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G18/76C08G18/66C08G18/48C08G18/36C08G18/32C08G101/00
CPCC08G18/3281C08G18/36C08G18/48C08G18/6688C08G18/6696C08G18/7664C08G18/7671C08G2350/00C08G2110/0083
Inventor 陈书明张丹刘芳
Owner JILIN UNIV
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