Non-thermal plasmas under atmospheric pressure are of great interest in material surface processing because their convenience, effectiveness and low cost. In this paper, the treatment a glass for improving hydrophobicity using non-thermal plasma generated by dielectric barrier corona discharge (DBCD) with needle array-to-plane electrode arrangement air is conducted, properties before after DBCD studied contact angle measurement, resistance measurement wet flashover voltage test. The effects...

This study applied Richardson’s Resiliency Model to measure resilience in depressive symptoms among older adults with disabilities rural China and examined its association age-related cohort-specific temporal effects using the Growth Curve analyze trajectories. We innovatively used propensity score matching address confounding variables when calculating score. Data were derived from Longitudinal Study of Older Adults Anhui Province, China, 3,672 observations 2001 2021. The results revealed...

Abstract One difference between a low‐pressure plasma treatment and an atmospheric pressure is that in the atmosphere, substrate material may contain significant quantities of moisture, which could potentially influence effects treatment. To investigate how existence moisture affects treatment, aramid fibers (Twaron 1000) with three different regains (0.5, 4.5, 5.5%) were treated by jet for 3 s at gas flow rate 8 L/min, head temperature 100°C, power 10 W. The scanning electron microscopy...

Experiments of a material-surface treatment using the nonthermal plasma generated by dielectric barrier discharge (DBD) at atmospheric pressure in ambient air are carried out on laboratory scale to see if DBD can be used enhancing surface hydrophobicity. It is well known that react with material and induce physical chemical changes improve wettability. The main purpose this paper, however, look into possibility same experimental setup do opposite, i.e., hydrophobicity for better insulation...

In the present work, effect of plasma treated ZnO nanoparticle on crystallization behavior and properties polypropylene（PP）/ polylactic acid （PLA）composites filaments has been intensively researched. Our results show that, although interfacial interaction between PP/PLA nano is very weak, addition proportional relations in composites induced increase percent crystallinity. Tensile showed that /PP/PLA nanocomposites were strain rate sensitive materials activation volumes nanocomposite by...

The poly (vinylidene fluoride)/poly (methyl methacrylate)(PVDF/PMMA) composite fibrous membranes with different blend ratio for use as separator of lithium-ion batteries have been developed by electrospinning technique. surface morphology and crystal structure electrospun PVDF/PMMA are characterized using scanning electron microscopy (SEM), attenuated total reflection Fourier transform infrared (ATR-FTIR) spectroscopy differential calorimetry (DSC).The results indicated that the addition...

The objective of this study was to investigate the uniformity and penetration surface modification into textile materials including fiber, yarn fabric treated by atmospheric pressure plasma jet (APPJ). Exposure helium/oxygen at made improvement in wettability, dyeability, adhesion single woven fabric. results showed that such a possible effective structure. It can treat whole surfaces filament parallel tow uniformly. For porous fabrics, rapid efficient treatment on both sides samples found...

It has long been a problem how to objectively evaluate the wet wearing comfortability of fabrics. In this paper novel testing method was proposed, and an instrument designed made. During process, fabric specimen first got saturated by “sweat” adhered on “skin”, then it separated at due rate from skin in time adhesion force-displacement curve drawn simultaneously. When totally skin, maximum force work were measured such as properties specimen. Six different kinds fabrics selected tested. The...

UHMWPE filaments have a low surface free energy and therefore often require modification of their properties before any use. Atmospheric pressure plasmas treatment is convenient environmentally friendly way to obtain these modifications by introducing new chemical groups at the without affecting bulk properties. This paper studies influence nano-SiO2 sol-gel coating pretreatment on atmospheric plasma jet (APPJ) ultrahigh molecular weight polyethylene (UHMWPE) fibers when mixture 100% helium...

Increasing air pollution caused mainly by exhaust emission has become a serious concern for public health. In order to efficiently control the from origin, hot gas filtration is required in many industries, such as thermal power regeneration, metal refining/recycling, and biomass/coal gasification. This study aimed develop hybrid filter composed with ultrafine fibrous polyimide (PI) layers carbon woven fabric supporting filtration. Uniform PI fibers around 200 nm small pores about 2.2 μm...

The influence of He/O2 atmospheric pressure plasma jet (APPJ) treatment on subsequent wet desizing polyarylate PET fabrics was studied in present paper. Atomic force microscopy (AFM) and Scanning electron (SEM) showed an increased surface roughness after the treatment. SEM also that fiber surfaces were as clean unsized fibers 35 s followed by NaHCO3 desizing. X-ray photoelectron spectroscopy (XPS) analysis indicated oxygen-based functional groups for treated polyacrylate sized fabrics....

The use of natural plant fibers as reinforcing fillers in fiber-polymer composites has drawn much interest recent years. Natural have several advantages over inorganic such glass fibers; they are abundant, readily available, renewable, inexpensive, biodegradable, low density, and high specific strength. Hemp one the most attractive for fiber-reinforced because their exceptional stiffness. In this review, we summarize progress developments hemp fiber reinforced unsaturated polyester (UPE),...

Polylactic Acid (PLA) and raw Wheat Straw (WS) were used to fabricate WS/PLA green composites. By hot-press process, composites with different WS volume fractions (20% 30%) obtained. The experimental results showed that when the fraction was 20%, had a tensile strength of 23.68MPa modulus 1.47GPa; bending 64.13MPa 1.44GPa. When increased 30%, enhanced by 45.18% 35.37% respectively; 15.80% 25.69%. It indicated PLA can be successfully reinforced at certain fractions.

In the current study role of plasma treated nano titanium dioxide particles and strain rate on tensile properties TiO2 particles/PP/PLA nano-composites filaments (PTNTOPPCF) was studied. The experiments included tests differential scanning calorimetry (DSC). addition into PP/PLA caused a change in Young's modulus yield stress composites. Strain sensitivity PTNTOPPCF changed as with without oxygen added to it different percentage weight. It increased more PLA, MAH, higher flow oxygen....

The Melt spinning technique of Nano-titanium dioxide particles/PP/PLA composites filaments fabricated by plasma treated particles studied in the present investigation. experimental results showed that physical and mechanical properties /PP/PLA depended on following factors percentage particles, maleic anhydride (MAH), treatment parameters: flow rate helium gas, output power, sample or stationary time oxygen gas. Among it gas had significant influence filament tensile modulus, yield strength...

The electrospinning technique was used to prepare the Polyethylene Terephthalate (PET) mats. electrospun PET mats with different fiber diameters have many applications such as biotechnological and biomedical, functional coating, lithum-ion membrane filtering so on. Several techniques including scanning electron microscopy (SEM), differential calorimetry (DSC) single electronic tensile strength tester were characterize before/after thermal treatment. When choosing suitable temperature,...

The rigid nature of ramie hairiness on fabrics cause severe itching feeling, which limited the application requiring for direct contact to skin. Current modification methods are ineffective, expensive or harmful main body fabric. In our research, a low temperature softening method in NaOH, urea, glycerol, and Na 2 B 4 O 7 treatment bath was developed proven be efficient lowering stiffness scratchiness without significant adverse effect fabric strength. Since it is possible reuse chemical...

The influence of He/O2 atmospheric pressure plasma jet (APPJ) treatment on subsequent wet desizing polyarylate from PET fabrics was studied in present paper. Scanning electron microscopy (SEM) analysis showed an increased surface roughness after the treatment. And SEM results also that fiber surfaces were as clean unsized fibers 35s followed by NaHCO3 desizing. X-ray photoelectron spectroscopy (XPS) indicated oxygen-based functional groups for treated polyacrylate sized fabrics. percent...

The plasticity treatment of APPJ on microstructure and tensile deformation Nano SiO2 coating Vectran in the dynamic states was investigated by specialized testing at room temperature. With addition low-temperature Helium plasma treatment, Young's modulus yield stress changed. It found that micro structural parameter such as activation volume important to describe inter-phase strength between filaments coating. results different treatments showed change rate sensitivity filaments. flow...

The purpose of the present work was to investigate effects oxygen-plasma treatment on tensile deformation nano-SiO2 sol-gel coating T-300 carbon fiber (HONS3C) were studied and a new concept for nano-structural interphase between surface nano-coating provided in paper. test results showed that besides enhanced ductility fibers by treated oxygen-plasma, activation volumes untreated with ranging from 681.9628 32342(nm)3 following Eyring’s equation important descriptors properties nano-coating,...

Effect of functionalized multi-walled carbon nanotubes (MWCNT) on the interfacial properties ramie fiber/polylactic acid (PLA) matrix was studied. Ramie fibers were respectively covered by pristine MWCNT, carboxyl MWCNT and hydroxide through simple dip coating method. Scanning electron microscopy (SEM) results showed that all kinds distributed fiber surface at random with some aggregations. Compared to coated a water contact angle 84.5 degree, made more hydrophobic. Polarization indicated...

Poly (vinylidene fluoride) (PVDF) / poly(methyl methacrylate) (PMMA) composite membrane was produced by the electrospinning technique. Thermal treatment introduced to improve mechanical property and dimensional stability. In this paper, PVDF/PMMA membranes before after thermal were characterized Scanning electron microscope (SEM), differential scanning calorimeter (DSC) , pore size porosity test, electrolyte uptake test tensile test. The size, porosity, rate, property, as well melting...

The electrospinning combined with the sintering process were used to prepare carbon-coated lithium iron phosphates (LiFePO 4 /C) cathode materials for ion batteries (LIB). In process, different procedures synthesize LiFePO /C composite materials. effect of time and heating rate on structure, surface morphology carbon content investigated by wide angel X-ray diffraction (WXRD), scanning electron microscope (SEM), elemental analysis (EA) techniques. It has better structure when is as follows:...

Shanghai’s development begun with shipping industry and prospered industrialization. Compared to the national industry, which has developed since late Qing dynasty, of modern is more recent a very memorable history. It recorded history traditional industrial in Shanghai its current situation, focusing on large number enterprises that have had still glory dream. In this paper, we will discuss Zhang Hua plush textile company's technology brand-making, how they contributed company’s success...