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A kind of bamboo tar phenolic resin foaming material and preparation method thereof

A technology of phenolic resin foam and phenolic resin, applied in the field of bamboo tar phenolic resin foaming material and its preparation, to achieve the effect of reducing dependence on petrochemical resources, improving strength and toughness, and good heat resistance

Inactive Publication Date: 2017-04-12
韦文榜 +6
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, some people have carried out research on the synthesis of bamboo tar phenolic resin, but mainly use it to prepare adhesives and apply it to the field of wood-based panels, and the research on preparing thermal insulation materials with bamboo tar phenolic resin has not yet been reported.

Method used

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  • A kind of bamboo tar phenolic resin foaming material and preparation method thereof

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preparation example Construction

[0030] The synthetic method of the expandable bamboo tar phenolic resin proposed by the present invention may further comprise the steps:

[0031] Add 5-15 parts of basic catalyst, 30-60 parts of water, and 60-140 parts of bamboo tar in order according to the above mass ratio under the condition of stirring and heating, and heat up to 70°C within 30 minutes; within 30 minutes, evenly add the above 40%-70% of the total amount of paraformaldehyde, react for 30 minutes after adding; then add 60-140 parts of phenol, heat up to 80-95°C, add the remaining paraformaldehyde evenly within 60 minutes, and react for 60-120 minutes after adding , cooling and cooling the material to obtain expandable bamboo tar phenolic resin;

[0032] (2) Preparation of bamboo tar phenolic resin foam

[0033] The parts by mass of each raw material are as follows: 100 parts of expandable bamboo tar phenolic resin, 5-20 parts of foaming agent, 2-8 parts of surfactant, 10-30 parts of filler, and 5-20 parts ...

Embodiment 1

[0038] (1) Synthesis of expandable bamboo tar phenolic resin

[0039] The mass parts of each raw material component are as follows: 60 parts of phenol, 80 parts of paraformaldehyde, 140 parts of bamboo tar, 30 parts of water, 5 parts of basic catalyst;

[0040] The synthetic method of expandable bamboo tar phenolic resin comprises the following steps:

[0041] Under the condition of stirring and heating according to the above mass ratio, 5 parts of sodium hydroxide solution with a mass fraction of 40%, 30 parts of water, and 140 parts of bamboo tar were added sequentially, and the temperature was raised to 70°C within 30 minutes to keep warm; within 30 minutes, the above-mentioned 40% of the total amount of paraformaldehyde, react for 30 minutes after adding; then add 60 parts of phenol, heat up to 80°C, add the remaining paraformaldehyde evenly within 60 minutes, react for 60 minutes after adding, cool down and discharge, and obtain Non-toxic bamboo tar phenolic resin;

[0...

Embodiment 2

[0046] (1) Synthesis of expandable bamboo tar phenolic resin

[0047] The mass parts of each raw material component are as follows: 80 parts of phenol, 100 parts of paraformaldehyde, 120 parts of bamboo tar, 40 parts of water, 10 parts of basic catalyst;

[0048] The synthesis method of expandable bamboo tar phenolic resin comprises the following steps: under the condition of stirring and heating according to the above-mentioned mass proportion, 10 parts of potassium hydroxide solution with a mass fraction of 40%, 40 parts of water and 120 parts of bamboo tar are sequentially added , heat up to 70°C within 30min and keep warm; add 50% of the above paraformaldehyde evenly within 30min, and react for 30min after adding; then add 80 parts of phenol, heat up to 85°C, and add the remaining paraformaldehyde evenly within 60min , reacted for 80 minutes after adding, cooled and discharged to obtain expandable bamboo tar phenolic resin.

[0049] (2) Preparation of bamboo tar phenolic ...

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Abstract

The invention relates to a bamboo tar phenolic resin foam material and a preparation method thereof, belonging to the field of high polymer materials and building materials. The preparation method of the foam material is prepared by the following steps that first, expandable bamboo tar phenolic resin is prepared from raw materials such as phenol, bamboo tar, paraformaldehyde, water and a catalyst; then, a foaming agent, a surfactant, padding and a curing agent are added into the expandable bamboo tar phenolic resin; and under a certain condition, foaming, curing and forming and demoulding are performed to obtain the bamboo tar phenolic resin foam material. The invention provides the method for preparing the bamboo tar phenolic foam material by efficiently and valuably using cheap and renewable bamboo tar to partly replace phenol, the cost of raw materials for the phenolic resin foam material is lowered, the dependency of the material on the petrochemical resources is reduced, the bamboo tar phenolic resin foam material which is relatively good in mechanical performance, and is unlikely to be chalked to generate dust is prepared, and the requirement in the field of building flame retardance and heat insulation can be met.

Description

[0001] Technical field: [0002] The invention relates to a flame-retardant thermal insulation material and a preparation method thereof, belonging to the field of polymer materials and building materials, in particular to a bamboo tar phenolic resin foaming material and a preparation method thereof. [0003] Background technique: [0004] As the country accelerates the implementation of energy conservation and emission reduction policies, the technical requirements for building insulation materials are also increasing. Especially in recent years, high-rise building fires have occurred frequently, causing serious casualties and property losses. The country's requirements for building insulation materials are becoming more and more stringent, and modern buildings urgently need a flame-retardant and energy-saving insulation material. Phenolic resin foam material has many advantages due to its good heat resistance, flame retardant and self-extinguishing, no dripping when burning,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L61/14C08G8/28C08G8/24C08G8/10C08G8/20C08J9/14
Inventor 韦文榜张双保王正冯昌信韦春义龙大军王翠翠
Owner 韦文榜