Easily degradable phenolic foam and preparation method thereof

A phenolic foam and easily degradable technology, applied in the field of easily degradable phenolic foam and its preparation, can solve problems such as difficult degradation and environmental problems, and achieve the effects of eliminating environmental pollution, reducing production costs and improving economic benefits

Inactive Publication Date: 2013-04-24
RES INST OF SUBTROPICAL FORESTRY CHINESE ACAD OF FORESTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, behind the wide application of phenolic foam materials, a large amount of non-degradable waste will be generated, because the traditional phenolic foam materials made of petrochemical phenol or formaldehyde are difficult to degrade, and new environmental problems will arise after being discarded

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The preparation method of easily degradable phenolic foam of the present invention specifically comprises the following steps:

[0031] (1) Preparation of biophenol

[0032] Add 100g of phenol and 3g of sulfuric acid into the reaction kettle, stir evenly, raise the temperature to 80°C, add 33g of dried and pulverized bamboo powder, react for 120 minutes, and cool to room temperature to obtain biomass phenol.

[0033] (2) Preparation of biomass phenolic resin

[0034] Weigh 100g of the above-mentioned biomass phenol, add 20g of sodium hydroxide and 60g of water, heat up to 40°C, slowly add 90g of paraformaldehyde and heat up to 75°C, and stop the reaction after 1.5h of reaction to obtain a black biomass phenolic resin with a viscosity of 4000mPa.s.

[0035] (3) Preparation of biomass phenolic foam

[0036] Weigh 100g of biomass phenolic resin, add 4g of Tween-20, 16g of p-toluenesulfonic acid and 24g of phosphoric acid, 12g of n-pentane, stir at high speed for 15s, an...

Embodiment 2

[0038] The preparation method of easily degradable phenolic foam of the present invention specifically comprises the following steps:

[0039] (1) Preparation of biophenol

[0040] Add 80g of phenol and 20g of nonylphenol, 2g of hydrochloric acid and 2g of sulfuric acid into the reaction kettle, stir evenly, raise the temperature to 140°C, add 25g of dried and crushed Camellia oleifera, react for 120 minutes, and cool to room temperature to obtain biomass phenol.

[0041] (2) Preparation of biomass phenolic resin

[0042] Weigh 100g of biomass phenol, add 15g of potassium hydroxide and 50g of water, raise the temperature to 50°C at a constant speed, slowly add 90g of formaldehyde solution, raise the temperature to 80°C at a constant speed and react for 2 hours, then stop the reaction to obtain a black biomass phenolic resin with a viscosity of 5000mPa. s.

[0043] (3) Preparation of biomass phenolic foam

[0044] Weigh 100g of biomass phenolic resin, add 7g of silicone oil,...

Embodiment 3

[0045] Example 3 The preparation method of easily degradable phenolic foam of the present invention specifically comprises the following steps:

[0046] (1) Preparation of biophenol

[0047] Add 100g of mixed cresol, 1.5g of sulfuric acid and 2g of phosphoric acid into the reaction kettle, stir evenly, raise the temperature to 90°C, add 28g of dried and crushed chestnut cattail, react for 120 minutes, and cool to room temperature to obtain biophenol.

[0048] (2) Preparation of biomass phenolic resin

[0049] Weigh 100g of biomass phenol, add 19g of ammonium carbonate and 60g of water, raise the temperature to 50°C at a constant speed, slowly add 120g of furfural solution, raise the temperature to 80°C at a constant speed, react for 2 hours, and stop the reaction to obtain a black biomass phenolic resin with a viscosity of 3500mPa.s .

[0050] (3) Preparation of biomass phenolic foam

[0051] Weigh 100g of biomass phenolic resin, add 2g of Tween-80 and 4 silicone oil, 12g o...

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Abstract

The invention discloses easily degradable phenolic foam which is obtained through a mixed reaction and foaming by raw materials which comprise, by weight, 100 parts of biomass phenolic resin, 4-8 parts of surface active agents, 24-44 parts of curing agents and 10-15 parts of foaming agents. The biomass phenolic resin is obtained through the mixed reaction and foaming by raw materials which comprise, by weight, 100 parts of biomass phenol, 15-20 parts of alkali, 90-130 parts of aldehyde and 40-75 parts of water. The biomass phenol is obtained through the mixed reaction by raw materials which comprise, by weight, 100 parts of phenol, 3-4 parts of catalyst acid and 25-33 parts of agriculture and forestry wastes. Further disclosed is a preparation method of the easily degradable phenolic foam. According to the easily degradable phenolic foam and the preparation method thereof, the agriculture and forestry wastes are translated into a flow state in a complete component mode under a specified condition, and used for replacing of partial petroleum base chemical products to prepare high polymer materials with high additional value. On one hand, the wastes are used, the product has biodegradability, and environment pollution is eliminated. On the other hand, production cost of the product is reduced.

Description

technical field [0001] The invention relates to a polymer material, in particular to an easily degradable phenolic foam and a preparation method thereof. technical background [0002] During the foaming process of phenolic resin, open-cell or closed-cell phenolic foam can be produced by adjusting the formula, foaming temperature, and the amount of foaming agent. Among them, closed-cell phenolic foam is widely used in heat insulation, sound insulation and fire prevention in industries and buildings due to its light weight, fire prevention, low toxicity, stable high temperature performance, heat insulation, sound insulation, easy processing and good durability. Open-cell phenolic foam (commonly known as flower mud) is a hydrophilic polymer foaming material with strong water absorption and water retention capabilities. It is used for transportation and storage of flowers, vegetables, seedlings, etc. It is easy to use and has superior performance. [0003] Phenolic foam is a fo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L61/14C08G8/28C08J9/14
Inventor 张金萍杜孟浩胡立松
Owner RES INST OF SUBTROPICAL FORESTRY CHINESE ACAD OF FORESTRY
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