This cover designed by Xuemei Li and Peng Zhao demonstrates the metallic contamination control of the fittings transporting ultrapure water in immersion lithography. The influence of process parameters on metallic contamination is investigated and optimized through the orthogonal experiment. This paper provides a novel idea for improving the cleanliness of the environment in chip manufacturing and a contribution to the next generation of chips. DOI: 10.1002/app.53940

Payne effect behaviour of nanocomposites based on SSBR/BR reinforced by hybrid nanosilica/CB system.

The preparation schematic diagram of porous d-CA casting membrane.

Narrowly defined bimodal particle size distribution using RAFT-mediated self assembled latex particles.

In this selectively crosslinked blend, PVA weight fraction leads to an increase in melt viscosity and elasticity. The HDPE viscosity affects blend morphology and rheological properties. The compatibilizer (PE-g-MAh) content does not severely affect blend rheology, but it affects its morphology. PVA crosslinking agent (MAh) loading level affects glass transition temperature of PVA, and slightly affects blend rheology and PVA morphology.

Fire-protective clothing of polyimide/wool blended fabrics with low heat release rate.

Synthesis of modified nano-silica gel plugging agent and sealing effectiveness

It is well known that drilling fluid leakage is a serious problem in deep well drilling and relies heavily on plugging to prevent or slow its intrusion into the formation. In order to simultaneously solve the problems of insufficient resistance to high temperatures and weak inter-action of existing blocking agents, a gel blocking agent PCAA with rapid self-healing ability was invented. PCAA uses acrylamide and acrylic acid as the main monomers and introduces chitosan monomers with a large number of amine and hydroxyl groups in order to achieve rapid self-healing of the gel through intermolecular electrostatic and hydrogen bonding interactions. The preparation of PCAA has been optimized by orthogonal experiments in which all three constituent monomers are essential, and the major roles of the three monomers in the gel composition have been revealed by rheological and morphological analysis. After 16 h self-healing the gel can recover 78.5% (13.5 kPa) of its tensile strength and deformation up to approximately 8 times. PCAA is capable of self-healing in drilling fluids at 180°C and 8% NaCl, effectively plugging pores and cementing formations to prevent intrusion of drilling fluid (from total loss to 6.7 cm intrusion). In addition, PCAA enhances drilling fluid rheology and filtration reduction. PCAA mainly relies on its own blocking and intermolecular interaction to prevent drilling fluid intrusion into the formation. Second, it can interact with clay to assist in reducing fluid loss. Furthermore, the increased molecular movement caused by high temperatures makes it easier for PCAA to flow and enter the formation pore space and to interact with the clay to plug the pore space, thus better improving the drilling fluid performance. The self-healing gel plugging agent proposed in this study provides a new idea for the development of temperature and salt resistant plugging agents for water-based drilling fluids.

The graphic abstract briefly describes the preparation of the superhydrophobic MS. The maximum adsorption capacity and recycling performance of the superhydrophobic MS are also described.

Preparation process of CO₂/O₂ selective composite film and its application in equilibrium modified atmosphere packaging.

The antioxidant activity of natural phenolic molecules added to a bio-polymer is evaluated through thermogravimetric analysis: the apparent activation energy (E_a) of the thermo-oxidative degradation is calculated. The addition of phenolic compounds to the poly(1,4-butylene succinate) led to an increase in the activation energy as the active molecules content increased. This analysis demonstrates the acquired antioxidant capacity of the formulated biopolymer.

Preparation of liquefied-chitin polyurethane foam and its photothermal evaporation system.

Silk fabric coated with silver nanowires (AgNWs) reveals high electrical conductivity, heat reflectance and antibacterial properties against gram-positive and -negative bacteria.

An illustration of the PVDF process-structure-property relationship.

CS/Na-Alg/PAAc and Ni@CS/Na-Alg/PAAc nanocomposite hydrogel preparation steps and their AFM topography

HDPE, PLA, and PCL coated cotton base fabrics bonded to woven shirting fabrics at different application conditions by a flat-bed fusing press. The importance of bonding temperature, time, and polymer type on the results were demonstrated statistically. It was seen that PLA would be an ecological alternative to the widely used HDPE, thanks to its biodegradable feature.