Effect of Dynamic Crosslinking on Mechanical Properties of PP/EPDM Blends

1993 ◽  
Vol 58 (11) ◽  
pp. 2642-2650 ◽  
Author(s):  
Zdeněk Kruliš ◽  
Ivan Fortelný ◽  
Josef Kovář
Keyword(s):  
Mechanical Properties ◽  
Impact Strength ◽  
Shear Modulus ◽  
High Impact ◽  
Necessary Condition ◽  
Step Method ◽  
Melt Mixing ◽  
One Step ◽  
High Impact Strength ◽  
Dynamic Curing

The effect of dynamic curing of PP/EPDM blends with sulfur and thiuram disulfide systems on their mechanical properties was studied. The results were interpreted using the knowledge of the formation of phase structure in the blends during their melt mixing. It was shown, that a sufficiently slow curing reaction is necessary if a high impact strength is to be obtained. Only in such case, a fine and homogeneous dispersion of elastomer can be formed, which is the necessary condition for high impact strength of the blend. Using an inhibitor of curing in the system and a one-step method of dynamic curing leads to an increase in impact strength of blends. From the comparison of shear modulus and impact strength values, it follows that, at the stiffness, the dynamically cured blends have higher impact strength than the uncured ones.

Development of Composite Materials for 3d Printing on the Basis of Polyphenylenesulfone

2018 ◽  
Vol 935 ◽  
pp. 15-20
Author(s):  
Azamat L. Slonov ◽  
Azamat A. Zhansitov ◽  
Diana M. Khakulova ◽  
Zh.I. Kurdanova ◽  
Ismel V. Musov ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
3D Printing ◽  
Impact Strength ◽  
Mechanical Characteristics ◽  
High Efficiency ◽  
High Impact ◽  
Filler Concentration ◽  
High Modulus ◽  
Polymeric Additives ◽  
High Impact Strength

The influence of talc and various polymeric additives on the basic mechanical properties of polyphenylenesulfone was investigated. It was found out that with the increase in the filler concentration there is an increase in stiffness, tensile strength and a decrease in the plasticity of the polyphenylenesulfone. While studying of polymer-polymer composites based on polyphenylenesulfone, high efficiency of polycarbonate as a modifier of impact strength was revealed. An effective method for producing a composite with a high impact strength and a modulus of elasticity has beendeveloped; it is based on the features of the distribution of the filler in the binary system polyphenylenesulfone – polycarbonate. The concentration of the filler in the polycarbonate phaseleads to low values of impactstrength, while its concentration in the phase of polyphenylenesulfone, followed by the introduction of polycarbonate leads to the formation of a high impact and high modulus composite. The samples obtained by 3D printing have high mechanical characteristics.

scholarly journals PREPARATION OF POLYAMIDE11/BAMBOO FLOUR POLYMER COMPOSITE USING POLYVINYL ALCOHOL AS COMPATIBILIZER

2018 ◽  
Vol 56 (2A) ◽  
pp. 209-216
Author(s):  
Mai Duc Huynh
Keyword(s):  
Tensile Strength ◽  
Impact Strength ◽  
Polyvinyl Alcohol ◽  
Ethanol Solution ◽  
The Other ◽  
Step Method ◽  
Melt Mixing ◽  
Polyamide 11 ◽  
One Step ◽  
Bamboo Flour

In this work, the effects of bamboo flour (BF) and polyvinyl alcohol (PVA) contents on the tensile strength, impact strength, thermogravimetric analysis (TGA) and dynamic mechanical thermal analysis (DMTA) of polyamide 11/BF composites were studied in detail. The PVA was added into PA11/BF composites by two methods: (i) melt mixing with the other components in Haake mixer (one-step method); (ii) dispersing on the surface of BF in ethanol solution before mixing with PA11 in the melted state (two-step method). The investigation of mechanical properties showed the tensile strength of composites prepared by two-step method was higher than that of one-step method, while the trend for impact strength was opposite. On the other hand, DMTA analyses exhibited the enhacement of the compatibility of PA11/BF sample by observing the shift of peaks at the b relaxation around -80 oC due to the presence of PVA. This led to the increase of thermal stability of PA11/PVA/BF composites in comparison with PA11/BF composites. 

SIMOCH

Alloy Digest ◽  
1966 ◽  
Vol 15 (12) ◽  
Keyword(s):  
Fracture Toughness ◽  
Wear Resistance ◽  
Impact Strength ◽  
Cold Work ◽  
Heat Treating ◽  
High Impact ◽  
High Shock ◽  
Alloy Tool ◽  
High Impact Strength ◽  
Shock Resistance

Abstract SIMOCH is a low alloy tool steel having high shock resistance, high impact strength and excellent wear resistance. It is recommended for many hot work and cold work applications. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness. It also includes information on forming, heat treating, machining, and joining. Filing Code: TS-186. Producer or source: Teledyne Vasco.

RMI 6Al-2Cb-1Ta-0.8Mo

Alloy Digest ◽  
1967 ◽  
Vol 16 (12) ◽  
Keyword(s):  
Fracture Toughness ◽  
Corrosion Resistance ◽  
Impact Strength ◽  
Base Alloy ◽  
Heat Treating ◽  
High Impact ◽  
Good Corrosion Resistance ◽  
Deep Diving ◽  
High Impact Strength ◽  
Reactive Metals

Abstract RMI-6A1-2Cb-1Ta-0.8Mo is a titanium-base alloy recommended for parts requiring high impact strength along with good corrosion resistance, especially for deep diving under sea vehicles. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness. It also includes information on forming, heat treating, machining, and joining. Filing Code: Ti-53. Producer or source: Reactive Metals Inc..

ISOPLAST 101 UNREINFORCED

Alloy Digest ◽  
1989 ◽  
Vol 38 (10) ◽  
Keyword(s):  
Fracture Toughness ◽  
Wear Resistance ◽  
Impact Strength ◽  
High Impact ◽  
Thermoplastic Polymer ◽  
Moisture Sensitivity ◽  
Chemical Company ◽  
High Impact Strength ◽  
Rigid Amorphous ◽  
Excellent Chemical

Abstract ISOPLAST 101, unreinforced, is a rigid, amorphous polyurethane thermoplastic polymer. It is opaque and impact modified. It is injection moldable and extrudable. It is characterized by its high impact strength, high abrasion resistance, excellent chemical and solvent resistance and low moisture sensitivity. This datasheet provides information on composition, physical properties, and tensile properties as well as fracture toughness. It also includes information on wear resistance. Filing Code: P-10. Producer or source: The Dow Chemical Company.

Mechanical Property Improvement of Poly(Butylene Succinate) by Reinforcing with Modified Fumed Silica

2014 ◽  
Vol 1025-1026 ◽  
pp. 215-220 ◽  
Author(s):  
Sasirada Weerasunthorn ◽  
Pranut Potiyaraj
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Impact Strength ◽  
Flexural Strength ◽  
Fumed Silica ◽  
Tensile Modulus ◽  
Silica Particles ◽  
Melt Mixing ◽  
Butylene Succinate ◽  
Ir Spectrophotometry

Fumed silica particles (SiO2) were directly added into poly (butylene succinate) (PBS) by melt mixing process. The effects of amount of fumed silica particles on mechanical properties of PBS/fumed silica composites, those are tensile strength, tensile modulus, impact strength as well as flexural strength, were investigated. It was found that the mechanical properties decreased with increasing fumed silica loading (0-3 wt%). In order to increase polymer-filler interaction, fumed silica was treated with 3-glycidyloxypropyl trimethoxysilane (GPMS), and its structure was analyzed by FT-IR spectrophotometry. The PBS/modified was found to possess better tensile strength, tensile modulus, impact strength and flexural strength that those of PBS/fumed silica composites.

Discussion on Repair Method of Concrete Highway Pavement

2013 ◽  
Vol 321-324 ◽  
pp. 209-212
Author(s):  
Chun Yan Xia
Keyword(s):  
Mechanical Properties ◽  
Preparation Program ◽  
Step Method ◽  
Concrete Technology ◽  
Concrete Material ◽  
Repair Method ◽  
Ordinary Concrete ◽  
One Step ◽  
Highway Pavement

nfluences on properties of the concrete highway pavement were analyzed in this paper, and the optimal formulation materials were gotten to use in the repair of used-broken cement blocks in the experiment. Polyurethane concrete material was prepared, combing the ordinary concrete technology with one-step method of the synthesis of polyurethane hard bubble, and then its mechanical properties of the relevant parameters were measured to determine the optimal preparation program. The results show that the polyurethane concrete also has sufficiently good mechanical properties while it has the characteristic of fast patching.

scholarly journals Comparison of Flexural Strength between Fiber-Reinforced Polymer and High-Impact Strength Resin

2008 ◽  
Vol 173 (10) ◽  
pp. 1023-1030 ◽  
Author(s):  
Denis Vojvodic ◽  
Franjo Matejicek ◽  
Ante Loncar ◽  
Domagoj Zabarovic ◽  
Dragutin Komar ◽  
...  
Keyword(s):  
Impact Strength ◽  
Flexural Strength ◽  
High Impact ◽  
Fiber Reinforced Polymer ◽  
Fiber Reinforced ◽  
Reinforced Polymer ◽  
High Impact Strength

Optimizing GMAW parameters to achieve high impact strength of the dissimilar weld joints using Taguchi approach

2021 ◽  
Author(s):  
M. Ramarao ◽  
M. Francis Luther King ◽  
A. Sivakumar ◽  
V. Manikandan ◽  
M. Vijayakumar ◽  
...  
Keyword(s):  
Impact Strength ◽  
High Impact ◽  
Taguchi Approach ◽  
Dissimilar Weld ◽  
Weld Joints ◽  
High Impact Strength
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