Dynamic Mechanical Properties, Crystallization Behavior and Morphology of Nanoscale Tin Fluorophosphate Glass/Polyamide 66 Hybrid Materials

2016 ◽  
Vol 16 (4) ◽  
pp. 4147-4152 ◽  
Author(s):  
Huiwen Liu ◽  
Jing Yang ◽  
Honglin Yu ◽  
Xiaoxuan Zou ◽  
Bo Jing ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Hybrid Materials ◽  
Crystallization Behavior ◽  
Dynamic Mechanical Properties ◽  
Degree Of Crystallinity ◽  
Polyamide 66 ◽  
Dynamic Mechanical ◽  
Fluorophosphate Glass ◽  
Two Phases ◽  
The Degree Of Crystallinity

The dynamic mechanical properties, crystallization behavior and morphology of nanoscale Tg tin fluorophosphate glass (TFP glass)/polyamide 66 (PA66) hybrid materials were investigated by XRD, DSC and SEM. The experimental results showed that the Tg of TFP/PA66 hybrid decreased and the third relaxation in the highly filled hybrid appeared due to the interaction between the TFP glass and amide groups of PA66. The storage modulus of the hybrid materials increased with increase in the content of TFP at low temperatures but had little effect at high temperatures. This result was attributed to the stiffness depression of the TFP glass when the temperature rose above its Tg and the similar elasticity of the two phases because of the interaction between the components. The degree of crystallinity and α, γ crystal content of PA66 both decreased due to the interaction between the two phases. In addition, the phase defect, the size distribution and the compatibility of TFP in the PA66 matrix were discussed by SEM, the results showed that the TFP appeared aggregation partly, but had the favorable compatibility in the PA66 matrix.

scholarly journals The Structure and Mechanical Properties of the UHMWPE Films Modified by the Mixture of Graphene Nanoplates with Polyaniline

Polymers ◽  
2018 ◽  
Vol 11 (1) ◽  
pp. 23 ◽  
Author(s):  
Tarek Dayyoub ◽  
Aleksey Maksimkin ◽  
Sergey Kaloshkin ◽  
Evgeniy Kolesnikov ◽  
Dilus Chukov ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Mechanical Properties ◽  
Filler Content ◽  
Dynamic Mechanical Properties ◽  
Degree Of Crystallinity ◽  
Functionalized Graphene ◽  
Lamellar Crystal ◽  
The Degree Of Crystallinity ◽  
Heterogeneous Crystallization ◽  
Graphene Nanoplates

Highly oriented UHMWPE films were reinforced with functionalized graphene nanoplates (GNP). GNP was functionalized by deposition of polyaniline (PANI) on the GNP surface. The structure of GNP/PANI was studied by Raman spectroscopy, and the structure of xerogels and films based on UHMWPE was studied by DSC and SEM. PANI promotes the reduction of the GNP aggregation in the UHMWPE matrix and increases the degree of crystallinity due to heterogeneous crystallization. The new lamellar crystal structure has a high drawability. The highest value of the tensile strength 1330 MPa (an increase of 45%) was obtained with a filler content of 2 wt % GNP/PANI, and the highest value of Young’s modulus 41 GPa (an increase of 32%) was obtained with a filler content of 1 wt % GNP/PANI. The effect of GNP with PANI fillers on the dynamic mechanical properties of the UHMWPE films was discussed.

Study on Dynamic Mechanical Properties of n-HA/PA66 Composites

2011 ◽  
Vol 418-420 ◽  
pp. 1511-1515
Author(s):  
Lin Cheng ◽  
Xiang Zhang ◽  
Yu Bao Li
Keyword(s):  
Mechanical Properties ◽  
Storage Modulus ◽  
Loss Modulus ◽  
Physiological Saline ◽  
Dynamic Mechanical Properties ◽  
Intrinsic Properties ◽  
Polyamide 66 ◽  
Dynamic Mechanical ◽  
Reinforcing Effects

The dynamic mechanical properties of nano-hydroxyapatite (n-HA) reinforced polyamide 66 (PA66) biocomposites were studied with reference to the effect of n-HA content, frequency and physiological saline. The intrinsic properties of the components, morphology of the system and the nature of interface between the phases determine the dynamic mechanical properties of the composite. The storage modulus (E') values of n-HA/PA66 composites were much higher than those of pure PA66, indicating that the incorporation of n-HA in PA66 matrix induced reinforcing effects obviously. And the E' values of composites increased with increasing of n-HA content. The loss modulus (E") of the composite with 30wt% n-HA was higher that those of pure PA66 and the composite with 40wt% n-HA below 55°C, however, above 55°C, the E" values enhanced with increase of n-HA content. Both frequency and physiological saline had obvious effects on the dynamic mechanical properties for n-HA/PA66 composite. E' and E" values enhanced with increase of frequency, but tanδ values decreased with increasing of frequency. After soaked in physiological saline, the E' and E" values of the composite decreased.

Dynamic Mechanical Properties of PPESK/Silica Hybrid Materials

2009 ◽  
Vol 48 (2) ◽  
pp. 164-169 ◽  
Author(s):  
W. He ◽  
T. Xing ◽  
G. X. Liao ◽  
W. Lin ◽  
F. Deng ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Hybrid Materials ◽  
Dynamic Mechanical Properties ◽  
Dynamic Mechanical ◽  
Silica Hybrid

Influences of the Crystallization Behavior of n-HA Reinforced PA66 Biocomposite on Its Mechanical Properties

2006 ◽  
Vol 510-511 ◽  
pp. 898-901 ◽  
Author(s):  
Xiang Zhang ◽  
Yu Bao Li ◽  
Yi Zuo ◽  
Guo Yu Lv ◽  
Yuan Hua Mu
Keyword(s):  
Mechanical Properties ◽  
Crystallization Behavior ◽  
Annealing Temperature ◽  
Injection Pressure ◽  
Degree Of Crystallinity ◽  
Crystalline Degree ◽  
Close Relationship ◽  
The Degree Of Crystallinity

The crystallization behavior of n-HA/PA66 biocomposites at different processing pressure and annealing temperature were investigated by XRD and DSC. The results showed that increasing annealing temperature would weaken the crystalline intensities of pure PA66 and its composites. For n-HA/PA66 composites, the peaks of α1 crystals of PA66 disappeared, only α2 crystals existed, and with the increase of injection pressure and annealing temperature, the crystalline intensity of PA66 decreased. The degree of crystallinity (Xc) of PA66 in composites increased with the increase of injection pressure, however, annealing temperature had no obvious effects on crystalline degree. The mechanical properties had close relationship with the crystallization behavior of the materials.

Melting, Crystallization and Dynamic Mechanical Properties of PTT/POE-g-MAH Blends

2011 ◽  
Vol 382 ◽  
pp. 268-271
Author(s):  
Ming Tao Run ◽  
Bing Tao Xing ◽  
Yan Ping Hao ◽  
Zi Yu Qi
Keyword(s):  
Nucleating Agent ◽  
Dynamic Mechanical Properties ◽  
Degree Of Crystallinity ◽  
Dynamic Mechanical Analyzer ◽  
Scanning Calorimetry ◽  
Dynamic Mechanical ◽  
Copolymer Blends ◽  
Ethylene Copolymer ◽  
Higher Temperature ◽  
The Degree Of Crystallinity

A series of poly(trimethylene terephthalate)/maleinized poly(octene-ethylene) copolymer blends are prepared and their melting, crystallization and dynamic mechanical propwerties were studied by using differential scanning calorimetry (DSC) and dynamic mechanical analyzer (DMA) respectively. The results suggest that the glass transition temperature of the blends shift to higher temperature because of the interaction between PTT and POE components. POE-MAH serves as a nucleating agent for the crystallization of PTT, and it increases the crystallizaiton rate of the blend and the start crystallizaiton temperature, but reduces the degree of crystallinity. Proper content of POE, e.g.1-2%, can improve the elastic modulus of the blend, but too much POE will depress the modulus.

Sign in / Sign up

Export Citation Format

Share Document