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A sound-absorbing and flame-retardant vegetable oil-based polyurethane foam material and its preparation method

A foaming material, vegetable oil-based technology, applied in the field of vegetable oil-based polyurethane foaming materials and preparation, to achieve the effect of improving constant temperature characteristics, regular cells, and good cell opening

Active Publication Date: 2022-04-19
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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  • A sound-absorbing and flame-retardant vegetable oil-based polyurethane foam material and its preparation method
  • A sound-absorbing and flame-retardant vegetable oil-based polyurethane foam material and its preparation method
  • A sound-absorbing and flame-retardant vegetable oil-based polyurethane foam material and its preparation method

Examples

Experimental program
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Effect test

Embodiment 6

[0048] Example 6 According to the formula of Example 5 in Table 1, material A and material C were mixed uniformly, the powder was weighed and placed in the same container, the temperature of material A and material B was controlled at 22-25 ° C, and the temperature of material C was controlled At 18-20°C, add materials A and B into the foaming barrel, stir at 400r / min for 25s, then add powder together, stir again at the same speed for 25s, then add material C into the foaming barrel, stir at 1000r / min 12s, and then quickly cast in the mold for reaction, the foam is matured and then trimmed and cut according to the set thickness to obtain a foamed bare board.

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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. The ratio of raw materials of the foaming material includes a combination of vegetable oil polyol, foam stabilizer, flame retardant, expandable graphite, Cu 2 O‑MoS 2 Hybrid particles, silica microcapsules, crosslinking agent, water, foaming catalyst, isocyanate, etc. The sound-absorbing and flame-retardant vegetable oil-based polyurethane foam material of the present invention has good sound-absorbing and flame-retardant properties, Cu 2 O‑MoS 2 The addition of hybrid particles effectively improves the smoke and poison suppression properties of flame retardant materials, adding silica microcapsules and preheating the foam bare board at the same time can make the appearance of the molded parts smooth and flawless. After preheating the foam bare board, the open cell ratio of the foam is increased, thereby improving the sound absorption performance of the foam.

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 polyurethane soft foam and the rigidity of polyurethane rigid 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 hood and side walls of automobiles using polyurethane foam are "fabric-polyurethane foam-...

Claims

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Application Information

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Patent Type & Authority Patents(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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