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Post-treatment process of ultra-low formaldehyde melamine foamed plastic

A formaldehyde melamine foam and post-treatment technology, which is applied in the coating and other directions, can solve the problems of high cost and complicated formaldehyde process, and achieve the effect of reducing production cost and high efficiency of formaldehyde removal

Inactive Publication Date: 2019-03-01
郑州峰泰纳米材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a post-treatment process of ultra-low formaldehyde melamine foam, which solves the existing problems of complex formaldehyde removal process and high cost in the foam

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] This embodiment provides a post-treatment process for ultra-low formaldehyde melamine foam, comprising the following steps:

[0025] (1) Place the foam with a thickness of 20mm on the horizontal partition of the furnace body, turn on the microwave device to heat, microwave for 3 minutes, then turn off the microwave device, and pass 55°C hot air into the furnace body through the hot air cover on the top wall of the furnace body , the bottom of the furnace body is provided with an exhaust pipe;

[0026] (2) In the process of ventilating the hot air, the spray head on the top of the body of heater sprays the urea solution to the foam;

[0027] (3) After the spraying is completed, stop the hot air and drain for 2 hours;

[0028] (4) Turn on the microwave device of the furnace body, dry it with microwaves, and it is ready.

[0029] Wherein, the number of the horizontal partitions is three, and the distance between adjacent horizontal partitions is 300 mm.

[0030] Wherein...

Embodiment 2

[0034] This embodiment provides a post-treatment process for ultra-low formaldehyde melamine foam, comprising the following steps:

[0035] (1) Place the foam with a thickness of 15mm on the horizontal partition of the furnace body, pass 60°C hot air into the furnace body through the hot air cover on the top wall of the furnace body, and an exhaust pipe is provided at the bottom of the furnace body;

[0036] (2) In the process of ventilating the hot air, the spray head on the top of the body of heater sprays the urea solution to the foam;

[0037] (3) After the spraying is completed, stop the hot air and drain for 1 hour;

[0038] (4) Turn on the microwave device of the furnace body, dry it with microwaves, and it is ready.

[0039] Wherein, the number of the horizontal partitions is three, and the distance between adjacent horizontal partitions is 350mm.

[0040] Wherein, the mass percent content of urea in the urea solution is 3%.

[0041] Wherein, the microwave device in...

Embodiment 3

[0044] This embodiment provides a post-treatment process for ultra-low formaldehyde melamine foam, comprising the following steps:

[0045] (1) Place the foam with a thickness of 25mm on the horizontal partition of the furnace body, turn on the microwave device to heat, microwave for 3 minutes, then turn off the microwave device, and pass 50°C hot air into the furnace body through the hot air cover on the top wall of the furnace body , the bottom of the furnace body is provided with an exhaust pipe;

[0046] (2) In the process of ventilating the hot air, the spray head on the top of the body of heater sprays the urea solution to the foam;

[0047] (3) After the spraying is completed, stop the hot air and drain for 3 hours;

[0048] (4) Turn on the microwave device of the furnace body, dry it with microwaves, and it is ready.

[0049] Wherein, the number of the horizontal partitions is four, and the distance between adjacent horizontal partitions is 250mm.

[0050] Wherein, ...

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Abstract

The invention discloses a post-treatment process of ultra-low formaldehyde melamine foamed plastic, belonging to the technical field of functional materials. The process comprises the following steps:placing foamed plastic on a horizontal spacer plate of a furnace body, and introducing 50-60 DEG hot air into the furnace body from a hot air hood on the top wall of the furnace body, wherein an exhaust pipe is arranged at the bottom of the furnace body; in the process of introducing the hot air, enabling a spray nozzle arranged on the top of the furnace body to spray a urea solution onto the foamed plastic; after the spraying is completed, stopping the introduction of the hot air, and draining for 1-3 h; starting a microwave device of the furnace body, and drying with microwave to obtain theultra-low formaldehyde melamine foamed plastic. The post-treatment process provided by the invention is high in formaldehyde removal rate, reduces the production cost of formaldehyde removal, and completes the curing process of the foamed plastic while removing formaldehyde.

Description

technical field [0001] The invention belongs to the technical field of functional materials, in particular to a post-treatment process of ultra-low formaldehyde melamine foam. Background technique [0002] Melamine foam (melamine foam) is a new type of foam with a low-density three-dimensional grid structure prepared with melamine as the main raw material with a porosity as high as 99.9%. It has excellent sound absorption properties, flame retardancy, and heat insulation. Performance, insulation, heat and humidity resistance stability, safety and sanitation and secondary processing performance, etc. Melamine foam plastics have broad application prospects in fields such as construction, transportation, vehicle manufacturing, acoustic engineering, electronic information, and object surface cleaning and decontamination. [0003] Since melamine foam is made of formaldehyde, free formaldehyde is easy to volatilize into the air, causing damage to human eyes and upper respiratory ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J9/36C08L61/28
CPCC08J9/36C08J2361/28
Inventor 刘军飞方乃竞李磊磊刘振涛王帅王永飞樊雪子李洋洋付超峰左耀卫
Owner 郑州峰泰纳米材料有限公司
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