The invention discloses an efficient
moisture-absorbing, breathable and self-cleaning automotive interior non-
woven fabric and a preparation method thereof.A modified
collagen fiber net has a super-hydrophobic structure and a super-hydrophilic structure, and the surface of the super-hydrophilic structure is tightly attached to a modified
lyocell fiber net, so that the non-
woven fabric has the
moisture-absorbing, breathable and self-cleaning ability while having the
moisture-absorbing, breathable and self-cleaning ability; the non-
woven fabric is made of a porous material with a
low shrinkage rate, so that the pore size of the non-woven fabric can be kept when the temperature rises, and the non-woven fabric has temperature change resistance and has good
moisture absorption and air permeability and self-cleaning performance when the temperature rises;
freeze drying is used for treating the fibers, moisture is directly sublimated from a
solid state to a gaseous state at a low temperature, the moisture in the fibers is eliminated, an
aerogel structure is formed, thermal stress caused by moisture
evaporation is reduced, the performance of a porous structure can be improved,
thermal shrinkage generated during heating can be avoided, and the
thermal conductivity of the fibers is improved. Therefore, the pore structure,
moisture absorption and air permeability of the non-woven fabric are maintained when the temperature rises.