Preparation process of high foaming phenolic resin foam material

A phenolic resin foam and preparation technology, which is applied in the field of polymer materials, can solve the problems of unfavorable industrial promotion, high cost, and high equipment requirements, and achieve the effect of simple process, low cost, and good heat resistance

Inactive Publication Date: 2011-02-16
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the components of the phenolic resin foam materials that have been obtained are very different, and the foaming mechanisms are different: researchers from Japan's Asahi Chemical Company reported in 2004 that the use of phenolic resin, CO 2 phenolic resin foam with high closed cell content and catalyst mixture; in 2008, Bu Gi Kim et al. prepared phenolic resin insulating foam [Bu Gi Kim, Dai Gil Lee. Development of microwavefoaming method for phenolic insulation foams[J]. Journal of Materials Processing Technology, 2008, 201 (123): 7162719], but these methods require higher equipment and higher costs, which are not conducive to industrial promotion

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] (1) The raw materials are industrial 301 type thermosetting phenolic resin liquid, analytically pure Zn powder, particle size 200 mesh and analytically pure HMTA (hexamethylphosphoric triamide), with a balance accurate to 100mg according to the mass percentage of 92%, 4% , 4% were weighed PE: 41.4mg, Zn: 1.8mg, HMTA: 1.8mg;

[0014] (2) Add phenolic resin liquid, Zn powder, and HMTA to a 50ml beaker in sequence at room temperature in the air, and stir evenly with a Guohua JJ-I mixer, with a stirring rate of 120r / min, a stirring time of 5min, and a stirring power of 25W , working power supply AC220V 50Hz, while observing whether the mixture is even;

[0015] (3) After stirring evenly, place it on a Guohua 78-1 magnetic stirrer for heating, with a heating power of 150W; the heating rate is 10K / min; the stirring rate is 80r / min; the size of the stirrer is 5cm, and the JJ-I stirrer is used to stir at the same time ;

[0016] (4) When the temperature rises, the curing reac...

Embodiment 2

[0018] (1) The raw materials are industrial 301 type thermosetting phenolic resin liquid, analytically pure Zn powder, particle size 200 mesh and analytically pure HMTA (hexamethylphosphoric triamide), with a balance accurate to 100mg according to the mass percentage of 90%, 4% , 6% were weighed PE: 40.5mg, Zn: 1.8mg, HMTA: 2.7mg;

[0019] (2) Add phenolic resin liquid, Zn powder, and HMTA to a 50ml beaker in sequence at room temperature in the air, and stir evenly with a Guohua JJ-I mixer, with a stirring rate of 200r / min, a stirring time of 2min, and a stirring power of 25W , the working power supply is AC220V50Hz, and observe whether it is evenly mixed;

[0020] (3) After stirring evenly, place it on a Guohua 78-1 magnetic stirrer for heating, with a heating power of 150W; the heating rate is 10K / min; the stirring rate is 100r / min; the size of the stirrer is 5cm, and the JJ-I stirrer is used to stir at the same time ;

[0021] (4) When the temperature rises, the curing re...

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PUM

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Abstract

The invention discloses a preparation process of a high foaming phenolic resin foam material. The preparation process comprises the following steps of: adding 90% to 92% by mass of thermosetting phenolic resin liquid, 4% by mass of Zn powder and 4% to 6% by mass of HMTA (hexamethylenetetramine) to a container for uniformly stirring, and heating and continuously stirring after uniformly stirring; and heating to 50 to 65 DEG C, and obtaining the phenolic resin foam material after 1 to 2 minutes of curing reaction. By adopting the process, the phenolic resin foam material with 8 to 10 times of foaming times can be prepared, the process is simple, and the cost is low.

Description

technical field [0001] The invention relates to a preparation process of a phenolic resin foam material, which belongs to the field of polymer materials. Background technique [0002] Phenolic resin foam has special excellent performance in flame retardancy. Its light weight, high rigidity, good dimensional stability, chemical corrosion resistance, good heat resistance, flame retardant, self-extinguishing, low smoke, is an ideal insulation material. The test results show that the foam material can be obtained by adding foaming agent during the curing process of phenolic resin. At present, the components of the phenolic resin foam materials that have been obtained are very different, and the foaming mechanisms are different: researchers from Japan's Asahi Chemical Company reported in 2004 that the use of phenolic resin, CO 2 phenolic resin foam with high closed cell content and catalyst mixture; in 2008, Bu Gi Kim et al. prepared phenolic resin insulating foam [Bu Gi Kim, D...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L61/06C08J9/00C08K5/5399
Inventor 边秀房郭凯
Owner SHANDONG UNIV
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