Composite modified porous calcium silicate-carbonized foaming phenolic resin based insulation material for forklift engine exhaust pipe and preparation method of insulation material

Abstract

The invention relates to an insulation material for an exhaust pipe, in particular to a composite modified porous calcium silicate-carbonized foaming phenolic resin based insulation material for a forklift engine exhaust pipe and a preparation method of the insulation material. During preparation of the insulation material, nano-zinc oxide is added in a phenolic resin foaming process in advance to improve the carbonization effect of phenolic resin foam, so that the insulation material subjected to carbonization treatment is low in hot-shrinkage rate, stable in size and higher in strength; the insulation material comprises an adhesive prepared by compositing such matters as porous calcium silicate and nano-aluminum sol; the adhesive not only has bonding and forming effects, but also can be utilized for further improving the mechanical property of the insulation material subjected to high-temperature treatment, so that the insulation property of the insulation material is improved. The insulation material provided by the invention has the advantages of being lightweight, tough, safe, insulated, long in service life, low in price, and environmentally friendly; insulation plates, insulation sleeves and other finished products made of the insulation material are excellent in insulation effect, efficient and durable; through the adoption of the insulation material, the working environment of a forklift engine is effectively improved.

Description

technical field

[0001] The invention relates to a thermal insulation material for an exhaust pipe, in particular to a composite modified porous calcium silicate-carbonized foaming phenolic resin-based thermal insulation material for a forklift engine exhaust pipe and a preparation method thereof. Background technique

[0002] During the continuous operation of the forklift, the exhaust pipe of the engine will generate a lot of heat. Due to the heat circulation, the temperature of the exhaust pipe will eventually be extremely high. If the heat insulation treatment is not carried out, it will seriously affect the parts around the exhaust system. The common treatment method is to wrap a heat shield made of materials with heat insulation effect outside the exhaust pipe. The common heat insulation materials that make up the heat shield mainly include metal aluminum plates, asbestos cloth, glass fiber cloth, etc. However, these materials have some disadvantages. For example, altho...

Examples

Embodiment

[0011] The heat insulation material of this embodiment is made of the following raw materials in parts by weight: chopped carbon fiber 2.5, 400 mesh porous calcium silicate 8, nano-zinc oxide 2.5, carboxymethyl cellulose sodium 2, and nano-alumina sol with a solid content of 25%. 12. 35 phenolic resins, 16 water glass with a Baume degree of 40°, 0.1 sodium dodecylsulfonate, 0.2 sodium bicarbonate, and 26 water.

[0012] The preparation method of the composite modified porous calcium silicate-carbonized foaming phenolic resin-based heat insulating material for the exhaust pipe of a forklift engine is as follows:

[0013] (1) Preparation of modified phenolic resin foam powder: put the phenolic resin into the organic solvent to dissolve it completely, then put the nano-zinc oxide into the solution, stir well to make it evenly dispersed in the solution, and then mix the material Foaming treatment to make modified foam phenolic resin, then crush the modified phenolic resin foam to ...

technical field

[0001] The invention relates to a thermal insulation material for an exhaust pipe, in particular to a composite modified porous calcium silicate-carbonized foaming phenolic resin-based thermal insulation material for a forklift engine exhaust pipe and a preparation method thereof. Background technique

[0002] During the continuous operation of the forklift, the exhaust pipe of the engine will generate a lot of heat. Due to the heat circulation, the temperature of the exhaust pipe will eventually be extremely high. If the heat insulation treatment is not carried out, it will seriously affect the parts around the exhaust system. The common treatment method is to wrap a heat shield made of materials with heat insulation effect outside the exhaust pipe. The common heat insulation materials that make up the heat shield mainly include metal aluminum plates, asbestos cloth, glass fiber cloth, etc. However, these materials have some disadvantages. For example, altho...

Examples

Embodiment

[0011] The heat insulation material of this embodiment is made of the following raw materials in parts by weight: chopped carbon fiber 2.5, 400 mesh porous calcium silicate 8, nano-zinc oxide 2.5, carboxymethyl cellulose sodium 2, and nano-alumina sol with a solid content of 25%. 12. 35 phenolic resins, 16 water glass with a Baume degree of 40°, 0.1 sodium dodecylsulfonate, 0.2 sodium bicarbonate, and 26 water.

[0012] The preparation method of the composite modified porous calcium silicate-carbonized foaming phenolic resin-based heat insulating material for the exhaust pipe of a forklift engine is as follows:

[0013] (1) Preparation of modified phenolic resin foam powder: put the phenolic resin into the organic solvent to dissolve it completely, then put the nano-zinc oxide into the solution, stir well to make it evenly dispersed in the solution, and then mix the material Foaming treatment to make modified foam phenolic resin, then crush the modified phenolic resin foam to ...