Meltblown non-woven fabric is a good thermal insulation material
Meltblown non-woven fabrics are widely used in thermal insulation and are good thermal insulation materials. Next, we will tell you about the application of meltblown non-woven fabrics in thermal insulation:
Meltblown nonwovens have the characteristics of large specific surface area, small voids (pore diameter ≤20μm), and high porosity (≥75%). For example, the specific surface area of u200bu200bmeltblown nonwoven fibers with an average diameter of 3 μm [equivalent to an average linear density of fibers of 0.0638 dtex (denier of 0.058 denier)] reaches 14617 cm2/g, while an average diameter of 15.3 μm [equivalent to the average fiber line The specific surface area of u200bu200bthe spunbonded nonwoven fiber with a density of 1.65 dtex (denier of 1.5 and)] is only 2883 cm2/g.
Since the thermal conductivity of air is much smaller than that of ordinary fibers, the air in the pores of the melt-blown non-woven fabric makes the thermal conductivity smaller, and the heat loss through the fiber material of the melt-blown non-woven fabric is very small. Moreover, the still air layer on the surface of the countless microfibers prevents the heat exchange due to the flow of air, so it has a good thermal insulation and thermal insulation effect.
Polypropylene (PP) fiber is a variety of existing fiber materials with a very low thermal conductivity. The melt-blown thermal insulation flakes made of PP fiber after special treatment have a thermal insulation performance that is 1.5 times that of down and the same as that of ordinary thermal insulation cotton. 15 times. Especially suitable for making ski suits, mountaineering suits, bedding, sleeping bags, thermal underwear, gloves and shoes. The products with a ration of 65-200g/m2 have been used to make thermal clothing for soldiers in cold regions.
In addition to the application of heat preservation, meltblown non-woven fabrics also have important applications in filter materials and oil absorption. In the future, XinYu Non-woven will introduce to you slowly, Wenzhou Xinyu Non-woven Fabric Co., LTD. is a non-woven manufacturer, processing and customizing various types of non-woven products.
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