工业降噪新材料-密胺泡绵（三聚氰胺泡沫塑料）

Industrial noise reduction new material - Melamine foam

密胺泡绵是一种有高开孔率的三维网格结构的新型泡沫塑料，材料本身具备难燃性、高温稳定性和柔韧性。它有着优异的吸声性、阻燃性、隔热性、耐湿热稳定性、卫生安全性及良好的二次加工性能。其网格的长径比即L/D约在10到20之间，其极高的开孔率特征（密度为8kg/M3的思航密胺泡绵的开孔率高达97%以上）使得声波能方便有效地进入泡沫体的深层并转变为网格的震动能被消耗和吸收掉，且有效地消除反射波，尤其是对低频噪音的吸收特性。

Melamine foam is a new type of foam with a three-dimensional grid structure with high open porosity. The material itself is flame retardant, high temperature stability and flexibility. It has excellent sound absorption, flame retardancy, heat insulation, moisture and heat stability, hygienic safety and good secondary processing properties. The length-to-diameter ratio of the grid is about 10 to 20, and its extremely high opening ratio characteristics (the opening ratio of Sisian melamine foam with a density of 8kg/M3 is as high as 97% or more). Sound waves can easily and efficiently enter the deep layers of the foam and transform into vibrations of the mesh that can be consumed and absorbed, and effectively eliminate the reflected waves, especially the absorption characteristics of low frequency noise.

独特的开孔三维结构能有效地阻挡声波，消音系数NRC=0.95，超过大多数传统材料。

The unique three-dimensional structure of the opening can effectively block the sound wave, and the noise reduction coefficient NRC=0.95, which exceeds most traditional materials.

High-decibel noise in industrial and manufacturing environments not only reduces productivity, but also threatens workers' health. Studies have shown that exposure to high noise environments can lead to stress and fatigue, which can lead to work-related injuries or hearing loss.

Work environments that are subject to high-intensity noise pollution (such as heavy construction machinery working noise and metal processing plants and other troubled people's voices) can effectively reduce and control factories, assembly plants, equipment, and installation by installing the sound-absorbing melamine foam surface of Xiamen Sihang. Noise and reverberations in production and other industrial settings restore noise to acceptable levels, helping companies protect the health of their employees and save on expensive insurance claims.

The sound-absorbing melamine foam board (the mold covered with self-adhesive paper) is directly bonded to the complicated structure such as ceiling, glass, steel pipe and wall surface. The construction is simple, the structure is perfectly combined with the original building, and the construction time is greatly shortened. More importantly, a variety of shapes are available: normal, wedge, pyramid, egg, white and grey, perfect for designer designs. In terms of sound absorption, sound insulation, fire performance and environmental protection, melamine foam has the advantage that traditional audio materials can't match, and it has reached the original intention of the owner's voice upgrade.