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Polyurethane foaming material and preparation method

A foaming material and polyurethane technology, applied in the field of polyurethane foaming materials and preparation, can solve the problems of lack of toughness, influence on service life and performance, and achieve the effects of enhancing shockproof performance, improving service life and enhancing toughness

Inactive Publication Date: 2020-09-11
SHANGHAI KEDUN MEDICAL INSTR SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Polyurethane foaming materials are characterized by variable polymer structures, which can meet a wide range of application needs. However, due to the limitations of traditional foaming materials and processes, polyester amine foaming materials, especially hard foams, are closed-cell structures. It is lacking in toughness, but this kind of foaming material is mostly used in building materials, and the level of toughness also affects its service life and performance, so improving the toughness of this kind of foaming material is a hot spot at this stage

Method used

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  • Polyurethane foaming material and preparation method
  • Polyurethane foaming material and preparation method

Examples

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Embodiment 1

[0018] Example 1: A polyurethane foam material comprises the following raw materials in parts by weight: 50 parts of polyether polyol, 15 parts of isocyanate, 5 parts of low-temperature resistant silicone rubber, 8 parts of modified attapulgite, 3 parts of flame retardant, antioxidant 1 part, 1 part of foaming agent, 5 parts of chain extender, 1 part of benzotriazole anti-ultraviolet agent, 0.5 part of pigment, 5 parts of filler, 2 parts of plasticizer.

[0019] A method for preparing a polyurethane foam material is as follows: according to the proportion of raw materials by weight of the polyurethane foam material in Example 1, adding polyether polyol into a stirring tank and heating it up to 85°C, mixing it with low-temperature-resistant silicone rubber, and using ultrasonic vibration to evenly For mixture A, add modified attapulgite, flame retardant, antioxidant, foaming agent, chain extender, benzotriazole anti-ultraviolet agent, pigment, filler, plasticizer to mixture A an...

Embodiment 2

[0021] Example 2: A polyurethane foam material comprises the following raw materials in parts by weight: 65 parts of polyether polyol, 20 parts of isocyanate, 10 parts of low temperature resistant silicone rubber, 12 parts of modified attapulgite, 6 parts of flame retardant, antioxidant 3 parts, 3 parts of foaming agent, 8 parts of chain extender, 3 parts of benzotriazole anti-ultraviolet agent, 3 parts of pigment, 10 parts of filler, 4 parts of plasticizer, the preparation method of embodiment 2 is the same as that of embodiment 1 .

Embodiment 3

[0022] Example 3: A polyurethane foam material comprises the following raw materials in parts by weight: 60 parts of polyether polyol, 18 parts of isocyanate, 8 parts of low-temperature resistant silicone rubber, 10 parts of modified attapulgite, 5 parts of flame retardant, antioxidant 2 parts, foaming agent 2 parts, chain extender 6 parts, benzotriazole anti-ultraviolet agent 2 parts, pigment 1 part, filler 6 parts, plasticizer 3 parts. The preparation method of embodiment 3 is the same as that of embodiment 1.

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Abstract

The invention discloses a polyurethane foaming material which comprises the following raw materials in parts by weight: 50-65 parts of polyether polyol, 15-20 parts of isocyanate, 5-10 parts of low-temperature-resistant silicone rubber, 8-12 parts of modified attapulgite, 3-6 parts of a flame retardant, 1-3 parts of an antioxidant, 1-3 parts of a foaming agent, 5-8 parts of a chain extender, 1-3 parts of a benzotriazole anti-ultraviolet agent, 0.5-3 parts of a pigment, 5-10 parts of a filler and 2-4 parts of a plasticizer. The nano silicon dioxide is added into the foaming agent, so that the modification of the foaming agent on polyurethane is effectively improved, the toughness of the foamed foaming material is enhanced, and the foaming material has high wear resistance and tensile resistance. The foaming material prepared by adding the low-temperature-resistant silicone rubber in the preparation process has a relatively good low-temperature-resistant effect, the application range ofthe foaming material is enlarged, the anti-ultraviolet agent and the flame retardant are also added in the preparation process, the foaming material has relatively good ultraviolet radiation resistance and flame-retardant effect, and the service life of the foaming material is prolonged.

Description

technical field [0001] The invention relates to a polyurethane foam material and a preparation method, and specifically belongs to the technical field of polyurethane material preparation. Background technique [0002] Polyurethane foam products refer to plastic products made of resin as the matrix with many tiny cells inside the material. Because of its many cells and full of air, it has light specific gravity, excellent heat insulation, sound insulation, shock absorption and other properties. At this stage, almost all polymer materials can be processed into foam materials, which broadens its application fields and reduces costs. [0003] Polyurethane foaming materials are characterized by variable polymer structures, which can meet a wide range of application needs. However, due to the limitations of traditional foaming materials and processes, polyester amine foaming materials, especially hard foams, are closed-cell structures. It is lacking in toughness, but this kind ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L75/08C08L83/04C08K13/06C08K7/26C08K3/08C08K5/521C08K3/36C08K5/3475C08J9/10C08J9/14C08G18/48C08G101/00
CPCC08J9/102C08J9/141C08J9/0071C08J9/0066C08J9/009C08J9/0038C08J9/0028C08J9/0061C08G18/4812C08G18/4825C08G18/4829C08G18/4804C08J2375/08C08J2483/04C08J2203/14C08J2203/04C08J2203/184C08G2101/00
Inventor 王振锋
Owner SHANGHAI KEDUN MEDICAL INSTR SCI & TECH
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