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Sound-absorbing flame-retardant vegetable oil-based polyurethane foam material and preparation method thereof

A foaming material and vegetable oil-based technology, which is applied in the field of vegetable oil-based polyurethane foaming materials and its preparation to achieve the effects of high mechanical strength, fast thermal conductivity and low density

Active Publication Date: 2020-04-21
浙江华江科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The patent belongs to the field of polyurethane elastomers and does not involve the "foam-gel" balance process of polyurethane foam materials

Method used

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  • Sound-absorbing flame-retardant vegetable oil-based polyurethane foam material and preparation method thereof
  • Sound-absorbing flame-retardant vegetable oil-based polyurethane foam material and preparation method thereof
  • Sound-absorbing flame-retardant vegetable oil-based polyurethane foam material and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 6

[0048] Example 6 According to the formula of Example 5 in Table 1, mix material A and material C evenly, weigh the powder and place it in the same container, control the temperature of material A and B at 22-25°C, and control the temperature of material C At 18-20°C, add material A and material B into the foaming barrel, stir at 400r / min for 25s, then add the powder together, stir again at the same speed for 25s, then add material C into the foaming barrel, and stir at 1000r / min 12s, then quickly cast in the mold for reaction, trim the edges after the foam is matured, and cut according to the set thickness to obtain a bare foam board, and heat the bare board in an oven at 200°C for 2 minutes to obtain a polyurethane foam material.

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Abstract

The invention discloses a sound-absorbing and flame-retardant vegetable oil-based polyurethane foaming material and a preparation method thereof, wherein the foaming material is prepared from the following raw materials in parts by weight: combined vegetable oil polyol, a foam stabilizer, a flame retardant, expandable graphite, Cu2O-MoS2 hybrid particles, silicon dioxide microcapsules, a cross-linking agent, water, a foaming catalyst, isocyanate and the like. The sound-absorbing and flame-retardant vegetable oil-based polyurethane foaming material disclosed by the invention has good sound-absorbing and flame-retardant properties; due to the addition of Cu2O-MoS2 hybrid particles, the smoke inhibition and toxicity inhibition characteristics of the flame-retardant material are effectively improved; the silicon dioxide microcapsules are added, and the foam bare board is preheated, so that the appearance of a formed part is smooth and flawless; and after the foam bare board is preheated, the foam aperture ratio is increased, and the sound absorption performance of foam is improved.

Description

technical field [0001] The invention relates to the technical field of polyurethane foam production, in particular to a sound-absorbing and flame-retardant vegetable oil-based polyurethane foam material used in parts such as a hood, a front wall and a side wall of an automobile engine and a preparation method thereof. Background technique [0002] Semi-rigid polyurethane foam material has both the flexibility of soft polyurethane foam and the rigidity of rigid polyurethane foam, and is widely used in product packaging and automotive interior and exterior decoration and other fields. With the development trend of the automotive industry, some automotive interior and exterior parts need to meet the requirements of lightweight materials, sound absorption, and flawless appearance. The foam material has the characteristics of low density, sound insulation and heat insulation. Generally, the car engine hood and side wall structure using polyurethane foam is "fabric-polyurethane f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/28C08G18/32C08K13/06C08K7/24C08K3/22C08K3/30C08K9/10C08K5/01C08K3/36C08K5/49C08G101/00
CPCC08G18/28C08G18/3206C08K13/06C08K7/24C08K3/22C08K3/30C08K9/10C08K5/01C08K3/36C08K5/49C08G2101/00C08K2003/2248C08K2003/3009
Inventor 丁响亮翁柳燕徐钢王亚南刘国旺方腾飞
Owner 浙江华江科技股份有限公司
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