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rheological and fire properties of a composite of unsaturated

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rheological and fire properties of a composite of unsaturated

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rheological and fire properties of a composite of unsaturated

2019-11-4 · Rheological properties and micro-characteristics of polyurethane composite modified Construction and Building Materials ( IF 6.141) Pub Date : 2019-11-02, DOI: 10.1016/j.conbuildmat.2019 Xin Jin,Naisheng Guo,Zhanping You,Lin Wang,Yankai Wen,Yiqiu Tan


Aiming to improve the comprehensive road performance of asphalt binders, especially the high-temperature performance, a novel asphalt binder was prepared by compounding high-quality and low-cost polyethylene (PE) with graphene (GNPs) using a high-speed shearing machine. The rheological properties and interaction mechanism of PE/GNPs composite modified asphalt were investigated …


2020-4-15 · and solid-state 13C-NMR spectroscopy, rheological methods and thermal analysis. Liquid crystalline unsaturated polyesters were possible to synthesise, and it was also possible to prepare lyotropic solutions of unsaturated polyesters in styrene. The thermal properties of the liquid crystalline polyesters depended on the substituents.


Studying the Effect of Some 23 Additives on Fire - Retardant and Mechanical Properties of Unsaturated Polyester Composite Experimentes in the Holy Karbala (العدد الاول 2014) T. AL-Abbas Holy ...


The basic properties and rheological properties of graphene/tourmaline composite modified asphalt were analyzed systematically. The results indicate that the basic viscoelastic properties of ...


2017-2-20 · viscoelastic properties of a kenaf fiber unsaturated polyester composite, and its validity was tested. The primary creep strain model was fitted to 60 min creep data. The resulting equation was then extrapolated to 5.5 days; the creep strain model of power-law was successfully used to predict the long-term creep behavior of natural


This study presents the composites prepared by melt blending based on high-density polyethylene, containing various amounts of kenaf fiber loadings and polyethylene-grafted maleic anhydride (PE-g-MA) in an internal mixer were prepared and investigated. Fourier transform infrared spectroscopy was used to characterize both untreated and treated ke- naf fibers.


2006-4-7 · Rheological properties of the aqueous dispersion of PLEOF terpolymer reinforced with nanosized hydroxyapatite (HA) particles are investigated using mechanical rheometry. To this end, we performed a series of rheological experiments on un-cross-linked PLEOF reinforced with different volume fractions of HA nanoparticles.


The objective of this study is to evaluate the rheological properties of SBS/CRP composite modified asphalt under different aging conditions in alpine cold regions. In this study, the styrene-butadiene-styrene (SBS) block copolymer, crumb rubber powder (CRP), softeners and various additives were used to prepare the SBS/CRP composite modified asphalt.


Rheological and fire properties of a composite of unsaturated polyester resin and halogen-free flame retardants


2019-5-25 · Their phase behavior, rheological properties, and coagulation behavior in alcohol−water reservoirs are characterized. Direct comparisons are made between these complexes, which are based on mixtures of linear polyelectrolytes, and prior observations of complexes composed of linear and highly branched chains.


2019-1-1 · Unsaturated polyester resins (UPR) are among the most commercially important thermosetting matrix materials for composites. This chapter summarizes the importance of the thermal and rheological properties of UPR. The kinetics and mechanisms of thermal degradation (for both inert and reactive atmospheres) are presented.


2015-4-1 · In this contribution, we studied mechanical and rheological properties of liners based on hydroxy terminated polybutadiene (HTPB) loaded with titanium dioxide and cured with isophorone diisocyanate (IPDI) or toluene diisocyanate (TDI). A thixotropic agent (Thixin R) was added, and viscosity was measured as a function of curing time, leading to much lower viscosities and longer pot life values.


2020-12-10 · and composite processing as well as high-temperature applications. Therefore, this study aims to investigate the thermal characteristics of ENR-based MREs and the correlation between the thermal and rheological properties. Additionally, the particle size, morphological analyses, and elemental analyses were also performed experimentally. The ENR ...


The unsaturated bond in PU crosslinked with the S-S bond in asphalt, which is helpful to improve the resistance to low temperature deformation. It can be found that the composite asphalt containing 5% PU and 5% RA performed a preferable laboratory performance investigated based on rheological properties tests and the microstructure observation.


2014-8-1 · Rheological properties of unsaturated polyester resin suspensions containing various amounts (0.5, 1 and 3 wt%) of nanocellulose were investigated by oscillatory rheometer with parallel plate geometry. Analysis of curing revealed that the time required for gelation in NC filled UPR is lower than neat resin, which describe the catalytic action of NC on cure reaction.


2020-11-2 · rheological properties 1. Introduction The styrene-butadiene-styrene (SBS) modified asphalt with good high-temperature stability, low-temperature flexibility, aging resistance and fatigue resistance is widely used in road engineering [1–3]. However, it has an unsaturated C=C bond so that its low-temperature performance and aging resistance


Hosseini Darabi, n and Abbassi Surki, f and Bakhshandeh., gh.r,1395,Effect of Unsaturated Carboxylate and Nanoclay on Rheological and Morphological Properties of Composites Based on SBR,Fifth International Composite …


Rheological investigation of building materials. The construction industry is confronted with a wide range of public and industrial projects in which different kinds of materials, from natural to synthetic, are in use. These materials are predominantly composites, such as bricks, cement, and concrete, and modified materials, such as fabrics ...


Request PDF | Rheological model and behaviors of resin system for vacuum infusion molding process | The curing properties and chemorheological behaviors of unsaturated polyester resin systems ...


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2021-4-26 · The rheological properties of the composite modified asphalts were examined using Master and Han curves. The original rock asphalt composite modified asphalts were nearly homogeneous. The 5R/18C presented outstanding high and low temperature performance, as well as the stable internal structure which was attributed to the homogeneous mixed ...


2021-1-11 · The best properties were obtained in the sample with 4 layers of glass and 9 layers of sisal fibres using 200 ml of resin. The composite had a tensile strength of 57.60 MPa, flexural strength of ...


The rheological properties of the resins were determined using a Haake Mars Rheometer (Thermo Scientific, Waltham, MA, USA). Then, 1 g of resin was laid on a flat sample platform for a plate–plate geometry mode. The gap between the spindle and platform was set at 1 mm. The spindle (PP60) was then rotated on the sample.


2018-12-3 · Our objective in this work consists in the synthesis, the characterization, the elaboration, the formulation, and the rheological study of the new phosphoric epoxy resin: pentaglycidyl ether pentaphenoxy of phosphorus (PGEPPP). Thus, we identified this polymer by Fourier transform infrared spectroscopy. Then, its chemical structure was confirmed by nuclear magnetic resonance of proton …


2020-2-20 · The rheological properties of the composite modified asphalt with different PU and RA contents through dynamic shear rheometer (DSR) and bending beam rheometer (BBR) tests, the multiple stress creep recovery (MSCR) test was performed to evaluate the resistance to permanent deformation of the PU composite modified asphalt, and then the performance grade (PG) of the PU composite …


2020-2-3 · Author information: (1)Renewable Materials Program, Department of Forest, Rangeland and Fire Science, University of Idaho, Moscow, ID 83844-1132, USA. Understanding the properties and flow characteristics of recycled polyolefins in rice hull composite blends is of importance to facilitate process optimization whilst promoting sustainability.


2009-2-3 · A modified nano-calcium carbonate (R-CCR) was prepared by coating a layer of unsaturated hydroxylfatty acid on the surface of CCR powders using a solid state method; the latter were commercial nano-CaCO3 modified with stearic acid. FTIR studies indicate that the modifier is combined on the surface of CaCO3. PP/EPDM/nano-CaCO3 ternary composites were prepared by a melt-mixing method.


2016-10-15 · Rheological properties of dough influence significantly the final quality of baked products. Wheat flour dough is viscoelastic with some nonlinear shear thinning and thixotropic behavior. Dough displays viscose “liquid-like” behavior at high strains (>0.1) because of the large deformation of its structure and the breakdown of the interactions between the polymer chains (G″ > G′) (MacRitchie …


2017-1-10 · Rheological and fire properties of a composite of unsaturated polyester resin and halogen‐free... Kużdżał, Ewa; Cichy, Barbara; Kicko‐Walczak, Ewa; Rymarz, Grażyna 2017-01-10 00:00:00 The main subject of the present research is to determine the impact of flame retarding fillers on macroscopic properties of composites.


2011-11-23 · Pavle M. Spasojevic, Thermal and Rheological Properties of Unsaturated Polyester Resins-Based Composites, Unsaturated Polyester Resins, 10.1016/B978-0-12-816129-6.00015-6, (367-406), (2019). Crossref Ming Gao, Yuxin Wang, Xuexi Chen, Hao Wang, A mussel-inspired intumescent flame-retardant unsaturated polyester resin system, Journal of Thermal ...


The modifications of the elastic-dynamic properties of a composite made of small waste oak particles of various sizes and a polyester resin subjected to photo degradation by UV radiation and thermal degradations were studied by [16,25,26,27,28,29,30,31].


2021-4-9 · Study on Rheological Properties of Bituminous Binders and Mixtures Containing Waste Printed Circuit Boards (PCBs) and ... and the increase in the content of the unsaturated bond C=C in the main chain of the ... make a composite binder, and the basic properties of …


Unsaturated polyester and vinylester resins are used in a wide variety of applications. These materials provide high structural stability, increased resistance to solvent and temperature, and improved mechanical stability. Low profile additives have been found highly effective in eliminating the polymerization shrinkage of unsaturated polyester resins in high temperature molding processes such ...


2018-9-1 · Rheological properties. The rheological properties of composite asphalt binders are important for selecting raw material and designating pavement structure. These characteristics are investigated by both empirical methods and dynamic shear rheometer (DSR) tests in this study.


2019-12-12 · In this work we report on the preparation, characterization, and properties of a thermally treated lignin-derived, phenolic-rich fraction (PRF) of wood pyrolysis bio-oil obtained by ethyl acetate extraction. The PRF was characterized for viscoelastic and rheological behavior using dynamic mechanical analysis (DMA) and cone and plate rheology. A unique thermoplastic behavior was …


The PU composite modified asphalt with 3%, 5% PU and 15% RA showed the best high temperature performance grade (PG). Both the PU and RA indicated a preferable compatibility with the base asphalt. The unsaturated bond in PU crosslinked with the S-S bond in asphalt, which is helpful to improve the resistance to low temperature deformation.


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