Environment-friendly heat-insulation and noise-reduction polyurea composite material and manufacturing method thereof

A composite material and environment-friendly technology, applied in the direction of sustainable manufacturing/processing, chemical industry, climate sustainability, etc., can solve the problems of fabric thickness that cannot be thinned, poor wear resistance, and stimulation of human respiratory tract, etc., to achieve production The process has good environmental protection, good processability and high solid content

Inactive Publication Date: 2020-08-14
青岛青材科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Heat insulation and noise reduction materials are commonly used materials in construction, transportation, and industrial engineering. The general thickness is more than 10mm. The production process mainly uses rock wool, asbestos, and pearl cotton as the main raw materials. There are the following disadvantages: 1: The materials used and the production process are not environmentally friendly , the fiber powder produced during the material production process will irritate the human respiratory tract and is not easily excreted
2: The thickness of the fabric cannot be thinned, and the noise reduction efficiency is low
3: The tensile strength of the braid is low and brittle
4: Poor aging resistance, easy pulverization, poor wear resistance
5: The surface color is monotonous and has no decorative effect, so it cannot be used alone

Method used

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  • Environment-friendly heat-insulation and noise-reduction polyurea composite material and manufacturing method thereof
  • Environment-friendly heat-insulation and noise-reduction polyurea composite material and manufacturing method thereof
  • Environment-friendly heat-insulation and noise-reduction polyurea composite material and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A preparation method of an environment-friendly heat-insulating and noise-reducing polyurea composite material, comprising the following steps:

[0027] (1) Preparation of component A: Put 45kg of polyether polyol, 15kg of trimethylolpropane and 10kg of butyl acetate into a reactor with a condenser, and vacuum dehydrate the reactor while keeping it stirring During 1h, turn on the condenser to lower the temperature to 35°C-50°C, keep the reaction kettle in this temperature range, add an appropriate amount of isophorone diisocyanate 75kg, when the temperature rises to 80°C-90°C, add grade A Add 3 kg of dimethyl phosphate and 0.5 kg of 2-hydroxy-4 methoxybenzophenone, continue stirring for 0.5 h, add 0.5 kg of n-butanol, stir for 0.5 h, then cool down to obtain component A;

[0028] (2) Preparation of component B: put 55 kg of polyaspartic acid resin into the dispersion tank for dispersion, then add 6 kg of cellulose acetate butyrate, and continue to disperse for 20 minute...

Embodiment 2

[0034] A preparation method of an environment-friendly heat-insulating and noise-reducing polyurea composite material, comprising the following steps:

[0035] (1) Preparation of component A: Put 50kg of polyether polyol, 12kg of trihydroxymethylpropane and 13kg of butyl acetate into a reactor with a condenser, and carry out vacuum dehydration while the reactor is kept stirring During 1h, turn on the condenser to lower the temperature to 35°C-50°C, keep the reaction kettle in this temperature range, add an appropriate amount of isophorone diisocyanate 78kg, when the temperature rises to 80°C-90°C, add grade A Add 4 kg of dimethyl phosphate and 0.7 kg of 2-hydroxy-4 methoxybenzophenone, continue stirring for 0.5 h, add 0.8 kg of n-butanol, stir for 0.5 h, then cool down to obtain component A;

[0036] (2) Preparation of component B: put 65 kg of polyaspartic acid resin into the dispersion tank for dispersion, then add 8 kg of cellulose acetate butyrate, and continue to disperse...

Embodiment 3

[0042] A preparation method of an environment-friendly heat-insulating and noise-reducing polyurea composite material, comprising the following steps:

[0043] (1) Preparation of component A: Put 75kg of polyether polyol, 20kg of trimethylolpropane and 20kg of butyl acetate into a reactor with a condenser, and vacuum dehydrate the reactor while it is stirring During 1h, turn on the condenser to lower the temperature to 35°C-50°C, keep the reaction kettle in this temperature range, add 80 kg of isophorone diisocyanate, and when the temperature rises to 80°C-90°C, add methyl-phosphoric acid di Add 5kg of methyl fat and 1kg of 2-hydroxy-4methoxybenzophenone, continue stirring for 0.5h, add 1kg of n-butanol, stir for 0.5h and cool down to obtain component A;

[0044] (2) Preparation of component B: Put 80 kg of polyaspartic acid resin into a dispersion tank for dispersion, then add 10 kg of cellulose acetate butyrate, and continue to disperse for 20 minutes to obtain component B; ...

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Abstract

The invention relates to the technical field of composite materials, and specifically discloses an environment-friendly heat-insulation and noise-reduction polyurea composite material. The environment-friendly heat-insulation and noise-reduction polyurea composite material comprises polyether polyol, tri(hydroxymethyl)propane, butyl acetate, isophorone diisocyanate, dimethyl methylphosphonate, a light stabilizer, polyaspartic acid resin, cellulose acetate butyrate, siloxane pigment, mica balls, silicate particles and a defoamer; a fiber texture is heated to 40 DEG C; the surface of the fiber texture is dried; the fiber texture is fixed on conveying rollers; one section of the fiber texture is placed on a fixing clamp; the fixing clamp draws the fiber texture to move forwards through a variable frequency motor under control of a PLC; relative positions of a rolling brush and a scraper to the fiber texture are controlled through sensors; a component A is mixed with a pre-mixed material to form slurry, and the slurry is pumped into a paint box by using a diaphragm pump; paint is extracted into a paint container, which is directly connected to the rolling brush, from the paint box according to a using amount; the slurry is painted on the fiber texture in a rolling manner by using the rolling brush; the slurry is slicked with the scraper and is dried; and then the environment-friendly heat-insulation and noise-reduction polyurea composite material is obtained.

Description

technical field [0001] The invention relates to the technical field of composite materials, in particular to an environment-friendly heat-insulating and noise-reducing polyurea composite material and a preparation method thereof. Background technique [0002] With the development of modern industry, environmental pollution is also produced. Noise pollution is a kind of environmental pollution, which has become a great harm to human beings. Noise pollution, water pollution and air pollution are regarded as three major environmental problems worldwide. Noise is the sound produced by the generating body when it does something irregular. Sound is caused by the vibration of objects and propagates in a certain medium (such as solid, liquid, gas) in the form of waves. The sound usually heard is air sound. Under normal circumstances, the sound wave frequency that can be heard by the human ear is 20-20000 Hz, which is called audible sound; below 20 Hz, it is called infrasound wave...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06N3/12D06N3/00C08G18/75C08G18/66C08G18/48C08G18/32C08G18/12C08G18/64
CPCD06N3/12D06N3/0077D06N3/0088C08G18/755C08G18/6677C08G18/48C08G18/3206C08G18/12C08G18/6438C08G18/6484D06N2209/1685D06N2209/065D06N2209/025D06N2209/103Y02P20/10
Inventor 窦亮
Owner 青岛青材科技有限公司
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