Melt blown non-woven fabric has a very wide range of applications in thermal insulation, is a good insulation material. Next, let's talk about the application of melt blown non-woven fabric in heat preservation
Melt blown nonwovens are characterized by large specific surface area, small porosity (pore diameter ≤ 20 μ m) and high porosity (≥ 75%). For example, the specific surface area of melt blown nonwovens with an average diameter of 3 μ m [equivalent to the average linear density of fibers of 0.0638 dtex (fineness of 0.058 Dan)] reaches 14617cm2 / g, while the specific surface area of spunbonded nonwovens with an average diameter of 15.3 μ m [equivalent to 1.65dtex (fineness of 1.5 and)] is only 2883cm2 / g.
Because the thermal conductivity of air is much smaller than that of ordinary fibers, the air in the pores of melt blown nonwovens reduces its thermal conductivity, and the heat loss through the fiber material of melt blown nonwovens is very small. Moreover, the static air layer on the surface of countless superfine fibers prevents the heat exchange due to the air flow, so it has a good heat insulation and heat preservation effect.
Polypropylene (PP) fiber is a kind of fiber material with very small thermal conductivity. The melt blown thermal insulation wadding made of PP fiber after special treatment has 1.5 times of down and 15 times of ordinary thermal cotton. It is especially suitable for making ski clothes, mountaineering clothes, bedding, sleeping bags, thermal underwear, gloves, shoes, etc. The products with a weight of 65-200 g / m2 have been used to make warm clothing for soldiers in cold areas.
Melt blown non-woven fabric is not only used in heat preservation, but also in filtration material and oil absorption. In the future, we will introduce to you slowly that Qingdao Mattel non-woven fabric Co., Ltd. is a non-woven fabric manufacturer, processing and customizing non-woven products for various uses.