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article

A comparison of the mechanical properties in compression of two resin systems

M.Z. Shah Khan, G. Simpson, C.R. Townsend

Materials Letters > 2002 > 52 > 3 > 173-179

This paper reports on the work carried out on two resins, which served as matrices in glass fibre-reinforced composite structural materials for naval ship construction. In generic terms, these are called polyester and vinylester. Specimens were subjected to compressive strain rates ranging from 0.005 to 10 s ^- ¹ using a servo-hydraulic testing machine. Fundamental properties related to...

article

Preparation, characterization, and application of hollow nano‐TiO₂@modified graphene/fluorinated copolymer nanocomposite leather finishing agents

Hui Pan, Lin Yang, Guoxing Liu, Xiaodong Wang

Journal of Applied Polymer Science > 139 > 29 > n/a - n/a

A novel nanocomposite leather‐finishing agent (denoted as H‐TiO₂@SDS‐rGO/F‐PBMA) composed of fluorinated copolymer (denoted as F‐PBMA) matrix using methyl methacrylate (abbreviated as MMA), butyl acrylate (abbreviated as BA) as well as acrylic acid (abbreviated as AA) as monomers and H‐TiO₂@SDS‐rGO composite nanoparticles as nano‐additives were successfully fabricated by aqueous emulsion polymerization...

article

Analysis of nonlinear mechanical behavior of resin materials at low and medium strain rates

Zhong Jianlin, Ren Rui, Tang Ziruo, Ren Jie, more

Polymer Composites > 43 > 6 > 3699 - 3707

Commonly used thermoset/thermoplastic continuous fiber‐reinforced composites have an isotropic failure strain of no more than 0.1 and deformation under gas pressure impact loading in the low to medium strain rate range (

\dot{ε} \leq 100 s^{- 1}

). In order to accurately grasp the load carrying capacity of the composite material under this condition and predict the damage failure behavior, experimental analysis and...

article

Thermally stable, flame retardant, low‐dielectric constants, and flexible thermosetting resins based on a tetra‐functional benzoxazine compound possessing a cyclic siloxane core

Hsuan‐Wei Lee, Ying‐Ling Liu

Journal of Applied Polymer Science > 139 > 28 > n/a - n/a

Cyclosiloxanes possessing organic functional moieties are reactive organic–inorganic hybrids as effective building blocks for preparation of organic–inorganic nanocomposites. In this work, a tetra‐functional benzoxazine compound (cD₄‐4Bz) with a cyclosiloxane core has been synthesized, cD₄‐4Bz could be considered as a self‐crosslinkable benzoxazine compound and has been utilize in preparation of the...

article

Simplified cooperative viscoplasticity theory based on overstress model for nanocomposites

Okan Bakbak, Ozgen Colak

Journal of Applied Polymer Science > 139 > 28 > n/a - n/a

Cooperative‐viscoplasticity theory based on overstress (C‐VBO) theory proposed to cover the total time, temperature, and graphene fraction dependent mechanical behavior of the nanocomposite material is simplified in this work. The previous version of the VBO model for nanocomposites includes the agglomeration effect of nanofiller by dividing the polymer nanocomposite into two parts as “agglomerated”...

article

Textile functionalization by combination of twin polymerization and polyalkoxysiloxane‐based sol–gel chemistry

Lysann Kaßner, Xiaomin Zhu, Karola Schaefer, Zhi Chen, more

Journal of Applied Polymer Science > 139 > 26 > n/a - n/a

The surface modification of textile fibers by coating with nanostructured organic–inorganic hybrid materials is presented. The hydrophobic, solvent resistant and mechanically robust coatings were produced by combining the twin monomer 2,2′‐spirobi[benzo‐4H‐1,3,2‐dioxasiline] (TM) and polyalkoxysiloxanes (silica precursor polymers) in a catalyzed polymerization process. For the application in textile...

article

Polyoxazoline‐modified graphene oxides with improved water and epoxy resin dispersibility and stability towards composite applications

Zeynep Munteha Sahin, Taha Behroozi Kohlan, Asu Ece Atespare, Mehmet Yildiz, more

Journal of Applied Polymer Science > 139 > 25 > n/a - n/a

Graphene oxide (GO) is modified with poly(2‐ethyl‐2‐oxazoline) (PEOZ) and poly[(2‐ethyl‐2‐oxazoline‐co‐(ethylenimine)] (PEOZ‐PEI) to enhance its dispersibility in water and epoxy resin. PEOZ with a terminal primary amine and POZ‐PEI with multiple backbone secondary amines are synthesized with scalable methods and characterized by nuclear magnetic resonance (NMR), Fourier transform infrared (FTIR),...

article

Nitrogen, sulfur co‐doped porous carbon via high internal phase emulsion template and its potential application as the electrode of high‐performance supercapacitor

Yulai Zhao, Anjun Wang, Lianzhi Shen, Zhikui Zhao, more

Journal of Applied Polymer Science > 139 > 25 > n/a - n/a

Heteroatom doped carbonaceous material with high specific surface area (SSA) is vital for assembling advanced supercapacitor. Here, a moderate and valid strategy is proposed to synthesize N, S co‐doped porous carbons (NSPCs) which are derived from porous resorcinol‐melamine‐formaldehyde‐thiourea (RMFT) resins via high internal phase emulsion (HIPE) template. The morphology, structure, porous characteristics...

article

Synthesis and properties of new siloxane with terminal azodyes functions based on eugenol

Aleksei I. Ryzhkov, Fedor V. Drozdov, Georgij V. Cherkaev, Mihail I. Buzin, more

Journal of Applied Polymer Science > 139 > 24 > n/a - n/a

Currently, there is little literature data about the production of colored siloxanes with covalently bound dyes. However, the demand for such products remains very high. Colored siloxanes are needed in various fields: microfluidic devices, sensors, photosensitive materials. In this work, two azo dyes based on commercially available natural phenol, eugenol, were obtained: phenylazoeugenol (AE) and...

article

Sorption of rhenium on synthetic cyclohexylamine anion exchange resin LSC‐436

Jiahui Feng, Haoqi Yu, Yingcai Wang, Haonan Li, more

Journal of Applied Polymer Science > 139 > 23 > n/a - n/a

A new organic synthetic anion exchange resin (LSC‐436) containing cyclohexylamine group was prepared for the sorption of rhenium. The traditional batch tests were applied to investigate the mechanism of sorption for rhenium on LSC‐436 with respect to contact time, initial rhenium concentration, the value of pH and the amount of resin. The experimental data obtained from batch tests were modeled using...

article

Polyethyleneimine‐condensed polystyrene resin: A specific adsorbent for Cu²⁺ over Ni²⁺

Qi Meng, Qiang He, Jiang Liu, Yiwen Cao, more

Journal of Applied Polymer Science > 139 > 23 > n/a - n/a

A polyethyleneimine grafted polystyrene adsorption resin (PSFPA) was prepared by condensation reaction of formylated polystyrene resin (PSF) with polyethyleneimine (PEI). The material has been characterized by IR spectroscopy, CHN elemental, specific surface area and pore size and thermal gravimetric analyses. It showed a superb equilibrium adsorptive capacity of 2.92 mmol/g for Cu²⁺ at 318 K and...

article

Rigidity of plasticizers and their miscibility in silica‐filled polybutadiene rubber by broadband dielectric spectroscopy

Niclas Lindemann, Sebastian Finger, Hossein Ali Karimi‐Varzaneh, Jorge Lacayo‐Pineda

Journal of Applied Polymer Science > 139 > 21 > n/a - n/a

An efficient use of plasticizers in rubber compounds requires an understanding of their miscibility behavior. Besides the chemical properties of both rubber and plasticizer, the rigidity of the plasticizer plays an important role for their miscibility. The miscibility is investigated here using the glass transition measured by differential scanning calorimetry and broadband dielectric spectroscopy...

article

Improving the flame retardancy of epoxy resin with ZIF‐67@GO‐PA nanohybrid as filler

Hongni Wang, Zhongjie He, Xiaoqian Li, Yudeng Wang, more

Journal of Applied Polymer Science > 139 > 21 > n/a - n/a

Despite many important industrial applications, epoxy resin (EP) suffers from high flammability. To solve the problem, functionalized graphene oxide with Co‐MOF and phytic acid (ZIF‐67@GO‐PA) was successfully prepared. Subsequently, 2 wt% of ZIF‐67@GO‐PA nano‐hybrids were added into EP. Base on the fire test results, the limiting oxygen index value of EP/ZIF‐67@GO‐PA enhances to 29.4% and its UL‐94...

article

Effect of plasma treatment parameters on the interfacial joining strength of overmolded hybrid fiber reinforced thermoplastic composites

Zhanyu Zhai, Qingzhu He, Liang Fu, Ningfeng Liu, more

Journal of Applied Polymer Science > 139 > 20 > n/a - n/a

In this study, hybrid fiber reinforced thermoplastic composites (hybrid thermoplastic composites) with high interfacial joining strength were fabricated using a plasma treatment strategy and injection overmolding technique. A series of experimental investigations were carried out to ascertain the effects of various plasma treatments on the interfacial joining strength of the overmolded hybrid composites...

article

Low‐dielectric constant and viscosity tetrafunctional bio‐based epoxy resin containing cyclic siloxane blocks

Pengbo Zhang, Tongjie Yao, Kangle Xue, Xianbin Meng, more

Journal of Applied Polymer Science > 139 > 20 > n/a - n/a

Bio‐based epoxy resins with low‐dielectric constant, low viscosity and excellent mechanical properties have great significance for the future of advanced electronic and microelectronic industries. Cyclosiloxane segment possesses low polarity, high‐dissociation energy, and elevated molecular volume, thereby making it useful for the synthesis of materials with low dielectric constant and viscosity....

article

Improving performance of two‐stage photopolymers for volume holographic recording by fluorinated epoxy‐amine cross‐linked matrices

Diqin Zhang, Yu Zhao, Zhen Zhang, Bin Guo, more

Journal of Applied Polymer Science > 139 > 20 > n/a - n/a

Host matrices play an important role in the volume holographic gratings formation of photopolymers. In this study, a series of fluorinated epoxy resin (FTGE) with low refractive index (1.44–1.46) are synthesized and characterized by nuclear magnetic resonance spectra (¹H NMR, ¹⁹F NMR) and fourier transform infrared spectra (FTIR). Fluorinated epoxy‐amine cross‐linked matrices are formed at room temperature...

article

Synthesis of polymeric emulsifiers based on ketoaldehyde resin and their application in emulsifying styrene/water two‐phase system

Guolin Wang, Guiting Cai, Menghao Zhang, Ziyu Wang, more

Journal of Applied Polymer Science > 139 > 19 > n/a - n/a

Though the stabilization effect of polymeric emulsifiers onto emulsions is worse than that of small molecular emulsifiers, the application of polymeric emulsifiers can avoid small molecule residues in polymer products. Herein, a series of polymeric emulsifiers (M‐CFR‐x‐K [Na]/M‐MeCFR‐x‐K) are synthesized based on cyclohexanone formaldehyde resin (CFR)/methylcyclohexanone formaldehyde resin (MeCFR),...

article

Healable epoxy‐based dielectric semi‐interpenetrating networks with different degrees of cross‐linking

Wenjie Sun, Jiaming Luo, Lei Zhang, Yujie Liang, more

Journal of Applied Polymer Science > 139 > 18 > n/a - n/a

This study concerns thermal stimulated healable epoxy‐based semi‐interpenetrating networks (semi‐IPNs). The crosslinking degree was adjusted using different curing agents to demonstrate its influence on healability. In addition to tensile properties, this study focuses on the influence of healing efficiency on dielectric performance, especially leakage current, following mechanical damage. We propose...

article

Modeling of dynamic mechanical curves of kenaf/polyester composites using surface response methodology

Heitor Luiz Ornaghi, Roberta Motta Neves, Francisco Maciel Monticeli, Sabu Thomas

Journal of Applied Polymer Science > 139 > 18 > n/a - n/a

The environmental and social concerns regarding environmental‐friendly materials lead to alternatives in replacing synthetic fibers for natural ones on polymeric composites. This study focused on modeling dynamic mechanical curves of kenaf/polyester composites using response surface methodology (RSM). Composites with three different reinforcement contents (13.5, 22.33, and 36.27 vol%) were produced...

article

Novel styrax liquidus loaded chitosan/polyvinyl alcohol cryogels with antioxidant and antimicrobial properties

Didem Demir, Sadin Özdemir, Serpil Gonca, Nimet Bölgen

Journal of Applied Polymer Science > 139 > 17 > n/a - n/a

In this study, a novel cryogel scaffold loaded with styrax liquidus gum exuded from trank of Anatolian sweetgum (Liquidambar orientalis Mill.), with antimicrobial and antioxidant properties was developed for potential tissue engineering applications. For this purpose, different ratios of styrax incorporated chitosan/polyvinyl alcohol composite scaffolds were fabricated using cryotropic gelation method...

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Search results

A comparison of the mechanical properties in compression of two resin systems

Preparation, characterization, and application of hollow nano‐TiO₂@modified graphene/fluorinated copolymer nanocomposite leather finishing agents

Analysis of nonlinear mechanical behavior of resin materials at low and medium strain rates

Thermally stable, flame retardant, low‐dielectric constants, and flexible thermosetting resins based on a tetra‐functional benzoxazine compound possessing a cyclic siloxane core

Simplified cooperative viscoplasticity theory based on overstress model for nanocomposites

Textile functionalization by combination of twin polymerization and polyalkoxysiloxane‐based sol–gel chemistry

Polyoxazoline‐modified graphene oxides with improved water and epoxy resin dispersibility and stability towards composite applications

Nitrogen, sulfur co‐doped porous carbon via high internal phase emulsion template and its potential application as the electrode of high‐performance supercapacitor

Synthesis and properties of new siloxane with terminal azodyes functions based on eugenol

Sorption of rhenium on synthetic cyclohexylamine anion exchange resin LSC‐436

Polyethyleneimine‐condensed polystyrene resin: A specific adsorbent for Cu²⁺ over Ni²⁺

Rigidity of plasticizers and their miscibility in silica‐filled polybutadiene rubber by broadband dielectric spectroscopy

Improving the flame retardancy of epoxy resin with ZIF‐67@GO‐PA nanohybrid as filler

Effect of plasma treatment parameters on the interfacial joining strength of overmolded hybrid fiber reinforced thermoplastic composites

Low‐dielectric constant and viscosity tetrafunctional bio‐based epoxy resin containing cyclic siloxane blocks

Improving performance of two‐stage photopolymers for volume holographic recording by fluorinated epoxy‐amine cross‐linked matrices

Synthesis of polymeric emulsifiers based on ketoaldehyde resin and their application in emulsifying styrene/water two‐phase system

Healable epoxy‐based dielectric semi‐interpenetrating networks with different degrees of cross‐linking

Modeling of dynamic mechanical curves of kenaf/polyester composites using surface response methodology

Novel styrax liquidus loaded chitosan/polyvinyl alcohol cryogels with antioxidant and antimicrobial properties

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