Pimaric acid modified phenolic aldehyde foaming resin

A foamed resin and phenolic resin technology, which is applied in the field of pimaric acid-modified phenolic foamed resin, can solve the problem of no pimaric acid-type resin acid considering industrial utilization alone, and achieves improved toughness, improved carbon residue rate and water absorption, The effect of reducing the proportion of harmful substances

Active Publication Date: 2017-05-10
SHENYANG INSTITUTE OF CHEMICAL TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

So far, the chemical utilization of rosin has actually been carried out mainly for the chemical properties of the abietic acid-type resin acid compon...

Method used

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  • Pimaric acid modified phenolic aldehyde foaming resin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Add phenol to paraformaldehyde in a mass ratio of 100:55 into the reactor, mix well, add 1 mass part of sodium hydroxide, and react in a constant temperature water bath at 90°C for 90 minutes to obtain a expandable phenolic resin. Add phenolic resin, pimaric acid, and aluminum oxide into a three-necked flask at a mass ratio of 100:80:3, stir well and heat up to 140°C, continue stirring for three hours, then add 3 mass parts of Tween -80 and 8 parts by mass of n-pentane, after uniform mechanical stirring, to obtain the phenolic resin modified by pimaric acid. Preheat the oven at 60°C for 30 minutes, add 12 parts by mass of toluenesulfonic acid to the prepared modified phenolic resin and stir evenly, then put the prepared modified phenolic resin into the oven for foaming 45min~60min. After cooling, demould to obtain pimaric acid modified phenolic foam.

Embodiment 2

[0028] Add phenol to paraformaldehyde in a mass ratio of 100:55 into the reactor, mix well, add 1 mass part of sodium hydroxide, and react in a constant temperature water bath at 90°C for 90 minutes to obtain a expandable phenolic resin. Add phenolic resin, pimaric acid, and aluminum oxide into a three-necked flask at a mass ratio of 100:85:3, stir well and heat up to 140°C, continue stirring for three hours, then add 3 mass parts of Tween -80 and 8 parts by mass of n-pentane, after uniform mechanical stirring, to obtain the phenolic resin modified by pimaric acid. Preheat the oven at 60°C for 30 minutes, add 12 parts by mass of toluenesulfonic acid to the prepared modified phenolic resin and stir evenly, then put the prepared modified phenolic resin into the oven for foaming 45min~60min. After cooling, demould to obtain pimaric acid modified phenolic foam.

Embodiment 3

[0030] Add phenol to paraformaldehyde in a mass ratio of 100:55 into the reactor, mix well, add 1 mass part of sodium hydroxide, and react in a constant temperature water bath at 90°C for 90 minutes to obtain a expandable phenolic resin. Add phenolic resin, pimaric acid, and aluminum oxide into a three-necked flask at a mass ratio of 100:90:4, stir well and heat up to 140°C, continue stirring for three hours, then add 3 mass parts of Tween -80 and 8 parts by mass of n-pentane, after uniform mechanical stirring, to obtain the phenolic resin modified by pimaric acid. Preheat the oven at 60°C for 30 minutes, add 12 parts by mass of toluenesulfonic acid to the prepared modified phenolic resin and stir evenly, then put the prepared modified phenolic resin into the oven for foaming 45min~60min. After cooling, demould to obtain pimaric acid modified phenolic foam.

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PUM

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Abstract

The invention discloses a pimaric acid modified phenolic aldehyde foaming resin, and relates to a foaming resin; the foaming resin is prepared from, by weight, 100 parts of phenolic resin, 80-95 parts of pimaric acid, 3-5 parts of catalyst, 2-6 parts of surface active agent, 8-10 parts of foaming agent, and 12-15 parts of curing agent. The pimaric acid is selected to modify phenolic resin; the used pimaric acid is innoxious substance directly extracted from a plant, and directly added in the phenolic resin, thus the ratio of harmful substance in the resin is reduced, and the product is more environment-friendly. The novel resin is high in mechanical strength and low in water absorbing property; the carbon yield is improved, and the product comprehensive performance is also promoted; the foaming resin has extensive development and application prospect.

Description

technical field [0001] The invention relates to a foaming resin, in particular to a pimaric acid modified phenolic foaming resin. Background technique [0002] The phenolic hydroxyl group and methylene group of pure phenolic resin are easily oxidized, which affects the heat resistance and oxidation resistance. The cured phenolic resin is brittle because the aromatic nuclei are only connected by methylene groups. Therefore, the use of various methods to modify phenolic resin has become the core content of phenolic resin research. With the continuous utilization of conventional fossil resources, their reserves are gradually decreasing. In view of this, humans began to look for alternative energy sources for these resources. In recent years, people have paid more and more attention to the development and utilization of natural plant resources, and environmental protection has become a key topic, and the application of chemical materials is even more important with environmenta...

Claims

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Application Information

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IPC IPC(8): C08L61/14C08L71/02C08K5/42C08G8/32C08J9/14
CPCC08G8/32C08J9/141C08J2203/14C08J2361/14C08J2471/02C08L61/14C08L2201/08C08L2203/14C08L71/02C08K5/42
Inventor 葛铁军唐恺鸿王佳王成城徐志华
Owner SHENYANG INSTITUTE OF CHEMICAL TECHNOLOGY
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