A kind of environment-friendly non-metal mute board and its manufacturing method

A non-metal and non-metal particle technology, applied in the field of building decoration materials, can solve the problems of low sound absorption coefficient, environmental pollution, fiber precipitation, etc., and achieve the effects of good stability in use, simple preparation steps, and easy cleaning.

Active Publication Date: 2021-02-19
肖春秀
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But in fact, due to the lack of connectivity in the internal pores of these materials, sound waves cannot penetrate into the vibration and friction inside the material, so the sound absorption coefficient is very small; at the same time, these materials are prone to fiber precipitation over time, causing environmental pollution

Method used

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  • A kind of environment-friendly non-metal mute board and its manufacturing method
  • A kind of environment-friendly non-metal mute board and its manufacturing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Example 1, according to the use environment and functions of the product in stations, tunnels, etc., the 20mm thick product should have sufficient rigidity and temperature resistance, and the unit weight should be controlled at about 30kg. The non-metallic particles 1 to be added for screening are natural dioxide Silica grit. According to the functional requirements, carry out active modification treatment on the adhesive to form active adhesive 2, the specific content is as follows: polyester polyol 30%, tackifying resin 3%, isocyanate 27%, hydroxymethyl resorcinol (HMR) coupling agent 1.5 %, 3A molecular sieve 6.5%, rutile titanium dioxide 1.0%, bismuth isooctanoate (ALLCHEM 360) 0.05%, low-shrinkage additive 2.5%, micro-quantity whisker carbon-zinc-silicon powder 1.5%, in the reactor by controlling the speed at 1100r / min, the temperature is 35°C and the time is 12min. The modified active adhesive 2 and the natural silica sand were measured at a ratio of 9:50, and t...

Embodiment 2

[0044] Example 2, according to the use environment and functional requirements of the product in the large space ceiling, the unit weight of the 20mm thick product is controlled within 10kg, and the non-metallic particles 1 to be added are screened as floating beads. According to the functional requirements, carry out active modification treatment on the adhesive to form active adhesive 2, the specific content is as follows: polyester polyol 26%, tackifying resin 2%, isocyanate 23%, hydroxymethyl resorcinol (HMR) coupling agent 1.4 %, 5.5% of 3A molecular sieve, 0.9% of rutile titanium dioxide, 0.15% of bismuth isooctanoate (ALLCHEM360), 1.5% of low-shrinkage additive, and 1.6% of micro-quantity whisker carbon-zinc-silicon powder. min, temperature 25°C and time 12min for modification. Measure the modified active adhesive 2 and floating beads according to the ratio of 2:3, and then carry out mixing and stirring treatment, so that the surface of the particles is evenly coated wi...

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Abstract

The invention relates to an environment-friendly non-metal sound-absorbing panel and a manufacturing method thereof. While ensuring that the sound-absorbing panel has sufficient sound absorption capacity and strong rigidity, it also has the functions of releasing negative oxygen ions and degrading formaldehyde to a certain extent, and has a relatively high performance. Good environmental protection performance is a good solution for sound-absorbing decoration and decoration.

Description

technical field [0001] The invention relates to the technical field of building decoration materials, in particular to an environment-friendly non-metal sound-absorbing panel and a manufacturing method thereof. Background technique [0002] For high-speed rail, subway, highway and other tunnels, platforms, airport terminals and luggage claim halls, sports venues, multi-functional conference halls, ticket halls, theaters and other densely populated large spaces, due to the noise of vehicles and people passing by, it is not effective , Rapid diffusion, will produce extremely strong noise in tunnels, platforms, and large spaces, and at the same time, the air will be dirty, which will seriously affect people's physical and mental health. [0003] At present, sound-absorbing panels using porous sound-absorbing materials are generally filled in these places, mainly including centrifugal glass wool, rock wool, mineral wool, etc. The principle of sound absorption is: there are a lar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B26/18C04B26/14B29C67/24B29L7/00C04B111/00C04B111/27C04B111/52
CPCB29C67/244B29L2007/002C04B26/14C04B26/18C04B2111/00025C04B2111/27C04B2111/52C04B2103/44C04B24/281C04B24/40C04B24/12C04B24/00C04B22/08C04B22/06C04B14/383C04B14/4643C04B14/06C04B24/02
Inventor 谢惠丽
Owner 肖春秀
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