Melamine formaldehyde resin microwave foaming and after-treating device

A technology of melamine formaldehyde resin and post-processing device is applied in the field of melamine formaldehyde resin microwave foaming and post-processing device, which can solve the problems of excessive formaldehyde residue and the like, and achieves improvement of foaming rate and uniformity, improvement of stability, The effect of good mechanical properties and flame retardant and sound-absorbing properties

Inactive Publication Date: 2017-01-04
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 microwave foaming and post-processing device for melamine-formaldehyde resin, which solves the problem that the existing melamine resin foam continuously releases formaldehyde and the residual amount of formaldehyde exceeds the standard

Method used

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  • Melamine formaldehyde resin microwave foaming and after-treating device

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Embodiment 1

[0026] Such as figure 1 As shown, this embodiment provides a melamine-formaldehyde resin microwave foaming and post-processing device, including a microwave cavity and a curing and drying cavity, and a liquid ammonia spray cavity is arranged between the microwave cavity and the curing and drying cavity body, the top of the liquid ammonia spray chamber is provided with a spray water pipe, the spray pipe is connected to the water pump outlet, the water inlet of the water pump is connected to the circulating water pool through the pipeline, and the circulating water pool is arranged under the liquid ammonia spray chamber, and the liquid ammonia spray A water receiving tank is arranged at the bottom of the ammonia spray chamber, and the water receiving tank is connected with the circulating water pool through a pipeline. The water receiving tank is arranged above the circulating water pool, and a filter device is arranged at the junction of the water receiving tank and the circula...

Embodiment 2

[0039] Such as figure 1As shown, this embodiment provides a melamine formaldehyde resin microwave foaming and post-processing device. In this embodiment, a pre-foaming microwave cavity is provided in front of the microwave cavity, and the microwave frequency in the pre-foaming microwave cavity is 915MHz, and the microwave frequency in the microwave cavity is 915MHz. Since the microwave frequencies of the two are consistent, there is no need to set a microwave backstop between the two.

[0040] Other structures of this embodiment are the same as Embodiment 1, and will not be repeated here.

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Abstract

The invention discloses a melamine formaldehyde resin microwave foaming and after-treating device and belongs to the technical field of resin microwave foaming devices. The device comprises a microwave cavity and a curing and drying cavity. A liquid ammonia spraying cavity is formed between the microwave cavity and the curing and drying cavity. Multiple drying microwave sources are arranged on the top of the curing and drying cavity, hot air diffusion pipe nets are arranged on the side wall of the curing and drying cavity and connected with a hot air pipeline, and the hot air pipeline is connected with a heating device. Air outlets are formed in the top of the curing and drying cavity, electric valves are arranged on the air outlets, and the air outlets are connected with an air outflow pipeline through the electric valves. Prepared melamine resin foam is low in brittleness, not prone to powder falling and high in stretch and tear strength, the problems in the prior art are effectively solved, and melamino-formaldehyde foam has good mechanical performance and anti-flaming and noise-reducing performance.

Description

technical field [0001] The invention relates to the technical field of resin microwave foaming devices, in particular to a microwave foaming and post-processing device for melamine-formaldehyde resin. Background technique [0002] Melamine-formaldehyde resin, also known as melamine-formaldehyde resin (melamine-formaldehyde resin), melamine resin, is a polymer obtained by the reaction of melamine and formaldehyde. A cross-linking reaction occurs during processing and molding, and the product is an infusible thermosetting resin. It is customarily called amino resin together with urea-formaldehyde resin. [0003] Melamine resin foam is a kind of flame retardant foam plastic made by special foaming process based on melamine formaldehyde resin. It is light in texture, has excellent flame retardancy, heat insulation, thermal stability, sound absorption and noise reduction, safety and sanitation and good secondary processability, and can be widely used in construction, machinery, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C44/34C08G12/32
CPCB29C44/34B29C44/3415C08G12/32
Inventor 李洋洋
Owner 郑州峰泰纳米材料有限公司
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