Eco-Friendly Superhydrophobic Composites with Thermostability, UV Resistance, and Coating Transparency

Abstract

Despite the market demand for biofiber assemblies endowed with superhydrophobicity being huge, the current approaches to their production are complicated, time-consuming, and even pose a serious threat to the environment. Here, we report a simple surface treatment strategy to prepare environmentally friendly superhydrophobic biofiber composites. The obtained samples have certain UV resistance properties, which are mainly determined by the titanium dioxide (TiO2) dosage. Additionally, the sample has excellent thermal stability, and the contact angle is maintained at 153.26° after heat treatment at 140 °C for 1 h. Quite encouragingly, thermal annealing of samples can transform translucent coatings into transparent structures and increase the tensile strength. The results also showed that this strategy could be integrated into the mass production process of other biofiber components as coating, such as coated paper, pulp boards, cotton gauzes, tissues, and so forth. Due to the facile preparation and environment-friendliness, this sustainable paper-based product can be used in diversified applications: packaging and storage of liquid food, protection of ancient books, UV- and rain-proof materials, and teaching demonstrations relevant to bionics, among others.

Cellulose Nanofibril/Talc Composite Films with Excellent Barrier Properties by Alternate Hierarchical Method

“…WCA of the MCNF films and TOCN films increased from 55.6° to 76.2° and from 56.4° to 68.7°, respectively, which demonstrated the increase in surface hydrophobicity of films. The increases in contact angles were due to talc platelets changing the surface structure, resulting in increased surface roughness . In addition, the water swelling ratio and water solubility of CNF films were characterized.…”

“…The increases in contact angles were due to talc platelets changing the surface structure, resulting in increased surface roughness. 51 In addition, the water swelling ratio and water solubility of CNF films were characterized. The results showed that the stability in water of CNF films increased with the addition of talc platelets (Figure S3).…”

Facile Preparation of PET/PA6 Bicomponent Microfilament Fabrics with Tunable Porosity for Comfortable Medical Protective Clothing

“…As seen in Figure c, the mass per unit area considerably affects the hydrostatic pressure. These findings show that the adjustable porosity of the hydrophobic microfibrous structure of the PET/PA6 bicomponent microfilament textiles produced by coating them with a C 6 -based fluorocarbon polymer followed by thermal-belt bonding may significantly increase the hydrostatic pressure . Surprisingly, the PET/PA6 bicomponent microfilament textiles also showed very strong resistance to blood penetration (the anti-blood grades are given in Table S1).…”

Preparation of interwoven structure composite paper via polylactic acid infiltrating fiber network

“…The excellent thermal stability of cellulose-based fiber paper is crucial for accommodating diverse environmental requirements while maintaining its original properties under elevated temperatures. 33 Therefore, we characterized the thermal stability of CE paper and CP composite paper. Figure 10a,b shows the TGA and DTG curves of CE and CP composite paper.…”