Improvement on Impact Strength of the Nylon 1010 Injection Products with Inlay

2011 ◽  
Vol 239-242 ◽  
pp. 1137-1140
Author(s):  
Jia Min Zhang ◽  
Ming Yi Zhu ◽  
Zhao Xun Lian
Keyword(s):  
Impact Strength ◽  
Injection Molding ◽  
Influencing Factors ◽  
Impact Test ◽  
Electric Conduction ◽  
Molding Process ◽  
Surface Color ◽  
Nylon 1010 ◽  
The Impact ◽  
Corresponding Analysis

Combining the characteristics of silver inserts, it was tested that its molding process and impact strength from the PA1010 injection molding product's craft. A kind of effective method was found that make sure silver embedded parts not occur surface color as injection heat and determined the reasonable injection molding craft. Meanwhile measuring impact strength of the nylon 1010 injection molding products through the impact test, It was discovered that injection products could well meet the assembly convenient, reliable and the electric conduction needs after inserting the embedded parts in the PA1010 injection molding products. Against molding defects of PA1010 injection molding products and influencing factors of the impact strength, the corresponding analysis was made.

Rice Husk/High Density Polyethylene Bio-Composite: Effect of Rice Husk Filler Size and Composition on Injection Molding Processability with Respect to Impact Property

2009 ◽  
Vol 83-86 ◽  
pp. 367-374 ◽  
Author(s):  
Wan Aizan Wan Abd. Rahman ◽  
N.M. Isa ◽  
A.R. Rahmat ◽  
N. Adenan ◽  
R.R. Ali
Keyword(s):  
Impact Strength ◽  
Injection Molding ◽  
Rice Husk ◽  
High Density Polyethylene ◽  
Injection Molding Process ◽  
Melt Flow ◽  
Molding Process ◽  
Melt Flow Rate ◽  
Filler Size ◽  
The Impact

The compounding of rice husk and high density polyethylene (HDPE) was undertaken on a Sino PSM 30 co-rotating twin screw extruder. Four sizes of rice husk were studied at various compositions. The size ranged from 500 μm and below (coded A, B, C and D) while the content of rice husk in the composite varies from 30, 40 and 50 percent of weight. A fixed amount of Ultra-Plast TP10 as a compatibilizer and Ultra-Plast TP 01 as lubricant, were added into the bio-composite compound. The injection molding process ability of the bio-composite was studied through flow behavior on melt flow indexer and analyzed on JSW N100 B11 Injection Molding. Size A which has the largest particle is the most appropriate size as the bio-composite filler based on thermal stability test. The melt flow rate of rice husk/HDPE (RHPE) decreases with the increased in rice husk compositions and apparent viscosity also increases with composition for all filler size. Melt flow rate above 4g/10 min was found to be the lower limit for injection molding process. The smaller the filler size, the lower is the impact strength and the increased in the filler composition lowers the impact strength. A bio-composite at 30 weight percent rice husk size A (RH30PEA) was found to have optimum rheological properties with respect to impact strength.

Effect of injection parameters on the thermal, mechanical and thermomechanical properties of polycaprolactone (PCL)

2021 ◽  
pp. 009524432110153
Author(s):  
Carlos Bruno Barreto Luna ◽  
Danilo Diniz Siqueira ◽  
Eduardo da Silva Barbosa Ferreira ◽  
Edcleide Maria Araújo ◽  
Renate Maria Ramos Wellen
Keyword(s):  
Experimental Design ◽  
Impact Strength ◽  
Injection Molding ◽  
Mold Temperature ◽  
Degree Of Crystallinity ◽  
Injection Molding Process ◽  
Processing Temperature ◽  
Molding Process ◽  
Injection Flow ◽  
The Impact

In this work, an experimental design was applied in the injection molding process of polycaprolactone (PCL), aiming to evaluate the mechanical properties (impact strength, tensile strength and Shore D Hardness), thermal (differential scanning calorimetry (DSC)) and thermomechanical (heat deflection temperature (HDT)), in PCL injected specimens. A type 2n planning was applied, with n = 3 and central point, having the input factors: processing temperature profile, mold temperature and injection flow. The results showed that the DSC curves presented a complex mechanism during crystallization, suggesting that depending on the processing conditions a high degree of crystallinity can be obtained. When using a higher processing temperature and a higher injection flow, there is an increase in the mass of the PCL parts. The impact strength is more expressive when a higher injection flow and a lower processing temperature are applied, reaching values around 260 J/m. The mold temperature impairs the elongation at the break of the PCL, while the elastic modulus was governed by the degree of crystallinity. A deleterious effect on HDT was observed with increased injection flow, suggesting that this parameter negatively affects thermomechanical resistance. The use of experimental design in the processing of PCL is important, since it is possible to optimize properties with the ideal conditions of injection molding.

Preparation and properties of novel sulfonic graphene oxide–epoxy resin nanocomposites by resin transfer molding process

2016 ◽  
Vol 51 (9) ◽  
pp. 1197-1208 ◽  
Author(s):  
Wei Li ◽  
Hongyu Li ◽  
Xinguo Yang ◽  
Wei Feng ◽  
Hongyun Huang
Keyword(s):  
Graphene Oxide ◽  
Impact Strength ◽  
Epoxy Resin ◽  
Curing Temperature ◽  
Flexural Property ◽  
Oxide Content ◽  
Molding Process ◽  
One Pot ◽  
Epoxy Resin Nanocomposites ◽  
The Impact

This paper reported a facile one-pot strategy for fabrication of sulfonic graphene oxide–epoxy resin nanocomposites. The rheological and thermal properties were employed to characterize the viscosity and the curing temperature of epoxy resin. Fourier transform infrared spectra for sulfonic graphene oxide and nanocomposites indicated that the sulfonic graphene oxide contains chemical cross-linking responsible for better interactions with the epoxy resin. The state of dispersion was evaluated at different scales by still picture camera and scanning electron microscopy (SEM). Tensile property tests indicated that the tensile strength and elasticity modulus of sulfonic graphene oxide–epoxy resin nanocomposites decreased slowly with increasing of sulfonic graphene oxide content. The critical flexural property and impact strength of epoxy resin filled with sulfonic graphene oxide nanocomposites were measured. The content, size, and dispersion state of sulfonic graphene oxide were examined. It was found that the content of sulfonic graphene oxide has greater impact on both flexural property and impact strength of nanocomposites compared with other conditions. For instance, the impact strength increased by 113.0% and the flexural strength and modulus increased by 39.3% and 55.7% using 1 wt.% sulfonic graphene oxide as compared to neat epoxy resin.

Impact Test and Bioactivity Properties of Polycaprolactone (PCL) by Addition of Nano-Montmorillonite (MMT) and Hydroxyapatite (HA)

2013 ◽  
Vol 446-447 ◽  
pp. 1129-1133 ◽  
Author(s):  
Reazul Haq Abdul Haq ◽  
Mohd Saidin Bin Wahab ◽  
Mat Uzir Wahit
Keyword(s):  
Injection Molding ◽  
Impact Test ◽  
Molding Machine ◽  
Injection Molding Machine ◽  
Composite Surface ◽  
Weight Percentage ◽  
Bioactive Properties ◽  
Sbf Solution ◽  
The Impact ◽  
Test Result

This report described the Impact Test result and Bioactivity Properties of biodegradable Polycaprolactone (PCL) blend with nano- Montmorillonite (MMT) and Hydroxyapatite (HA). The amount of nano-MMT is varies from 2 to 4 by weight % meanwhile the amount of HA is fixed to 10 by weight percentage (wt%). The addition of nano-MMT and HA filler is to tune and indirectly improve the mechanical and bioactive properties of PCL. The samples for these test are injected from injection molding machine. The Impact test are conducted using Charpy Method. From the analysis it is found that the toughness of PCL are decreased by the addition of these fillers. PCL/MMT composites gives a better result compare to PCL/MMT/HA composites. This is due to the HA characteristic which is brilttle and tends to reduce the ductile properties of the polymer. From the Simulated Body Fluis (SBF) result, formation of apatite layer at the surface of the composites is evidence of excellent bioactivity properties of HA. The enhance of bioactivity has been proved while incorporation of HA into PCL/MMT composite. SEM-EDX image showed the bulk formation of apatite layers on the composite surface with 10 wt% HA after 3 days immersed in SBF solution.

scholarly journals KARAKTERISTIK SIFAT MEKANIS ANTARA TIGA PRODUK MANUFAKTUR ELEKTRODA E6013

2019 ◽  
Vol 3 (1) ◽  
pp. 40-45
Author(s):  
Basori Basori ◽  
Ferry Budhi Susetyo
Keyword(s):  
Impact Strength ◽  
Test Specimen ◽  
Impact Test ◽  
Surface Hardness ◽  
Welding Process ◽  
Hardness Test ◽  
Bottom Plate ◽  
Weld Deposit ◽  
Welding Electrode ◽  
The Impact

The type of electrode used in the SMAW process has many types, such as E 6010, E 6011, E 6012, E 6013, E 6020, E6027. In this case the type E 6013 is the most widely used. Certainly the type E 6013 is produced by different manufacturers as well. From penelurusan researchers of this type have different prices in accordance with companies that sell it. For that reason researchers are interested to compare the three manufacturing outputs for the type E 6013 in terms of its mechanical properties. Making a specimen welding electrode cut material to be used. then sandpaper the material that has been cut so that no remaining pieces are still attached. The next step to do the welding process with three types of E6013 elekroda. The welding is carried out until it reaches the layer layer 10 mm thickness, then the bottom plate is discarded and the weld deposit deposits only The impact strength and surface hardness value are inversely proportional. For the impact test, the E1 electrode sample specimen has the highest impact strength value and the E3 electrode sample specimen has the lowest impact strength value. While on the hardness test specimen E3 electrode sample has the highest hardness value and sample specimen E1 electrode has the lowest hardness value. This can prove that the harder the object is the more brittle the object.

scholarly journals The Effect of Crystallinity on the Toughness of Cast Polyamide 6 Rods with Different Diameters

Polymers ◽  
2020 ◽  
Vol 12 (2) ◽  
pp. 293
Author(s):  
Miklós Odrobina ◽  
Tamás Deák ◽  
László Székely ◽  
Tamás Mankovits ◽  
Róbert Zsolt Keresztes ◽  
...  
Keyword(s):  
Impact Strength ◽  
Impact Test ◽  
Charpy Impact ◽  
Polyamide 6 ◽  
Degree Of Crystallinity ◽  
Scanning Calorimetry ◽  
Tensile Impact ◽  
Different Diameters ◽  
The Impact ◽  
The Degree Of Crystallinity

The present paper concentrates on the toughness and the degree of crystallinity of the magnesium-catalyzed polyamide 6 rods cast in different diametres, which are commonly used for gear manufacturing. Its toughness cannot be regarded as a constant feature due to the casting technology. The mechanical properties of the semi-finished products are sensitive to the manufactured dimension, e.g., cast diameter, which are investigated by the Charpy impact test and tensile impact test. It is generally accepted that the impact strength and tensile-impact strength correlate with the degree of crystallinity beside many other material’s feature. Crystallinity is evaluated by Differential Scanning Calorimetry. The aim of this study is to determine the relationship between toughness and crystallinity of the magnesium-catalyzed cast PA6 rods with different diameters. For the research cast rods between 40 and 300 mm diameter were selected in seven-dimensional steps. Based on the results, it was found that the toughness depends strongly on the diameter size. Furthermore, it is proved that the crystallinity explains 62.3% of the variation of the Charpy’s impact strengths, while the tensile impact method was not suitable to detect the difference between the test samples.

Effect of Compatibilizer on Impact Strength and Morphology of Polystyrene/Zinc Oxide Nanocomposites

2012 ◽  
Vol 545 ◽  
pp. 330-334
Author(s):  
Sirirat Wacharawichanant ◽  
Pranee Saetun ◽  
Thunwawon Lekkong ◽  
Thongyai Supakanok
Keyword(s):  
Particle Size ◽  
Zinc Oxide ◽  
Impact Strength ◽  
Impact Test ◽  
Screw Extruder ◽  
Melt Mixing ◽  
Zno Particles ◽  
Twin Screw ◽  
The Impact ◽  
Scanning Electron

This article investigated the effects of particle size of zinc oxide (ZnO) and polystyrene-co-maleic anhydride (SMA) compatibilizer on impact strength and morphology of polystyrene (PS)/ZnO71 (71 nm) and PS/ZnO250 (250 nm) nanocomposites. PS/ZnO nanocomposites with varying concentration of ZnO and SMA were prepared by a melt mixing technique in a twin screw extruder. It was found that the impact strength of PS nanocomposites increased up to a ZnO content of 1.0 wt%. Moreover, PS/ZnO250 nanocomposites had higher impact strength than PS/ZnO71 nanocomposites. The addition of SMA increased the impact strength of PS/ZnO nanocomposites with increasing SMA content. The result showed that SMA could improve impact strength of nanocomposites. The dispersion of ZnO particles on PS/ZnO nanocomposites was studied by scanning electron microscope (SEM). It was observed that the dispersion of ZnO particles of PS/ZnO nanocomposites without SMA was non-uniform and the agglomeration of ZnO particles in the polymer matrix increased with increasing ZnO content. The dispersion of ZnO particles of PS/ZnO nanocomposites after adding SMA was relatively good and only few aggregations exist. These observations support the results of the impact test where the PS/ZnO nanocomposites with SMA displayed higher impact strength than the PS/ZnO nanocomposites without SMA. The study showed that SMA was used as a compatibilizer to improve the dispersability and compatibility of ZnO particles in PS matrix.

scholarly journals ОСОБЛИВОСТІ ПЕРЕРОБКИ НАПОВНЕНИХ ПОЛІАМІДНИХ КОМПОЗИЦІЙ МЕТОДОМ ЛИТТЯ ПІД ТИСКОМ

2020 ◽  
Vol 140 (6) ◽  
pp. 71-80
Author(s):  
С. В. Пристинський ◽  
Ю. О. Будаш ◽  
В. І. Ступа ◽  
І. О. Пустовойт
Keyword(s):  
Comparative Analysis ◽  
Impact Strength ◽  
Injection Molding ◽  
Process Parameters ◽  
Polymer Composition ◽  
Injection Molding Process ◽  
Composition Material ◽  
Technological Parameters ◽  
Polyamide 6.6 ◽  
The Impact

Comparative analysis the main parameters of injection molding and the physic-mechanicals properties of polymer compositions based on polyamide 6.6. Samples we had obtained by injection molding method at injection molding machine ENGEL E-MAC 170/75. The process parameters had determined empirically to achieve certain quality criteria. Physics and mechanicals properties had evaluated by Sharpy impact strength. Statistical data processing, construction of graphs and diagrams had done in MS Excel. During the researching, had done a comparative analysis of the main parameters of the injection molding process, physical and mechanical properties, such as impact strength of the samples obtained from the glass-filled polymer composition based on polyamide PA6.6-GFGB30 and the material without glass filler PA6.6. During the experiment and data, analysis had revealed an increase in the impact strength of samples by 43%, cast from polymeric composition material PA6.6-GFGB30 in comparison with PA6.6. At the same time the process parameters such as the temperature, which directly affects the energy resources consumption, did not receive statistically significant changes. Among the features of changes in process parameters, we can note an increase in switching pressure, a decrease in the dosing time, and others. In addition, the speed and linear values of the process have changed. For the first time had performed a detailed comparative analysis the main processing parameters by injection molding and the physic-mechanicals properties of polymer compositions based on polyamide 6.6. The results will allow a professional approach to the selection of polymer compositions and technological parameters the process of their processing by injection molding.

scholarly journals Studi Konsentrasi Larutan KOH dan Arah Orientasi Serat Rami terhadap Kekuatan Impak Komposit dengan Matrik Polyester

2021 ◽  
Vol 3 (1) ◽  
Author(s):  
Retno Eka Pramitasari ◽  
Mochamad Arif Irfa'i ◽  
Reza Prasetyo
Keyword(s):  
Impact Strength ◽  
Impact Test ◽  
Control Variable ◽  
Health Sector ◽  
Solution Concentration ◽  
Advanced Technology ◽  
Fiber Direction ◽  
Ramie Fiber ◽  
Materials Used ◽  
The Impact

The development of increasingly advanced technology, especially in the health sector, can lead to an increase in the need for composite materials used. This study aims to describe the results of the concentration of KOH solution and the orientation of the ramie fiber on the impact strength of composites with a polyester matrix. This research is an experimental study with the manipulation variables are the concentration of the KOH solution and the orientation of the fiber direction by determining the value of the impact strength as the dependent variable of ramie fiber as a control variable of this study. This study obtained the optimum impact test result of 0.0711 J/mm2 with 5% KOH solution concentration and located at 0o/45o/90o fiber direction orientation. While the results of the lowest impact test resulted in a value of 0.0101 J/mm2 without soaking the KOH solution and located at 90o/0o/90o fiber direction orientation.

Study on the Influence of Processing Condition on Impact Property of Injection-Molded Polycarbonate

2012 ◽  
Vol 151 ◽  
pp. 135-138
Author(s):  
Ying Hui Shang ◽  
Bo Wang ◽  
Fang Fang Wang ◽  
Zhi Xin Wang ◽  
Chun Tai Liu
Keyword(s):  
Thermal Treatment ◽  
Impact Strength ◽  
Injection Molding ◽  
Processing Condition ◽  
Impact Property ◽  
Impact Tests ◽  
Injection Molded ◽  
Plastic Components ◽  
Injection Molded Plastic ◽  
The Impact

The impact property of injection-molded plastic components is an important factor to judge their quality. The aim of this paper is to study the effects of processing conition on impact property of injection-molded polycarbonate (PC). By changing the processing conitions such as injection molding parameters and thermal treatment, different impact samples were acquired. Then, Izod and Charpy notch impact tests were carried out to research the relation between the impact strength and the prcessing conditions. The results imply that different processing conitions will lead to different changes of impact property.

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