Vibrational Eigenfrequencies and Mechanical Properties of Mesoscopic Copolymer Latex Particles

2010 ◽  
Vol 43 (7) ◽  
pp. 3422-3428 ◽  
Author(s):  
Tim Still ◽  
Markus Retsch ◽  
Ulrich Jonas ◽  
Rebecca Sainidou ◽  
Pascal Rembert ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Latex Particles

Preparation of vinyl polymer/polyurethane hybrid latex particles and their application in nano-sized vinyl polymer particle/thermoplastic polyurethane blends

e-Polymers ◽  
2010 ◽  
Vol 10 (1) ◽  
Author(s):  
Yanyan Wei ◽  
Chengzhong Zong ◽  
Fufang Wang
Keyword(s):  
Mechanical Properties ◽  
Thermoplastic Polyurethane ◽  
Polymer Particle ◽  
Gravimetric Analysis ◽  
Hybrid Particles ◽  
Scanning Calorimetry ◽  
Latex Particles ◽  
Vinyl Polymer ◽  
Hybrid Latex ◽  
Polyurethane Matrix

AbstractVinyl polymer/polyurethane hybrid latex particles with various compositions were successfully prepared via emulsion polymerization of vinyl monomer in the presence of self-emulsified polyurethane dispersion without using any surfactant. Studies were carried out on polymerization kinetics, characterization of the hybrid particles and the physical properties of nano-sized vinyl polymer particle/thermoplastic polyurethane blends. It was found that the maximum content of vinyl polymer in polyurethane hybrid particles was up to 80 percent and all of the vinyl polymer/polyurethane hybrid particles were less than 120 nm. Infrared spectroscopy, thermal gravimetric analysis and differential scanning calorimetry analysis indicated the influence of vinyl polymer on the polyurethane hybrid particles. With the polyurethane shells outside and, therefore, good compatibility with polyurethane matrix, the hybrid particles can be easily blended into polyurethane matrix. Some unusual changes of dynamic mechanical properties in the low temperature region were found in the blends of hybrid particles and thermoplastic polyurethane. With the addition of only 3%, the mechanical properties of these blends did not show a significant change. This study provided a new method to prepare hybrid particles in the absence of surfactant and made an attempt on application of vinyl polymer/polyurethane hybrid particles in the blending modification

The effect of rubber latex particles on the mechanical properties of highly crosslinked epoxy polymers

1979 ◽  
Vol 21 (6) ◽  
pp. 1456-1462 ◽  
Author(s):  
Ye.B. Trostyanskaya ◽  
P.G. Babayevskii ◽  
S.G. Kulik
Keyword(s):  
Mechanical Properties ◽  
Rubber Latex ◽  
Latex Particles ◽  
Epoxy Polymers

Pre‐Vulcanization of Large and Small Natural Rubber Latex Particles: Film‐Forming Behavior and Mechanical Properties

2019 ◽  
Vol 304 (9) ◽  
pp. 1900283
Author(s):  
Manus Sriring ◽  
Adun Nimpaiboon ◽  
Nattanee Dechnarong ◽  
Sirirat Kumarn ◽  
Yuji Higaki ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Natural Rubber ◽  
Natural Rubber Latex ◽  
Rubber Latex ◽  
Latex Particles ◽  
Film Forming

Structured latex particles with improved mechanical properties

1999 ◽  
Vol 35 (1-4) ◽  
pp. 265-275 ◽  
Author(s):  
C.L Zhao ◽  
J Roser ◽  
W Heckmann ◽  
A Zosel ◽  
E Wistuba
Keyword(s):  
Mechanical Properties ◽  
Latex Particles

scholarly journals Effect of size of latex particles on the mechanical properties of hydrogels reinforced by latex particles

RSC Advances ◽  
2019 ◽  
Vol 9 (26) ◽  
pp. 14701-14707
Author(s):  
Li Liu ◽  
Guangchao Lv ◽  
Xiuyan Ren ◽  
Xinhe Li ◽  
Te Wang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Cross Linking ◽  
Particle Sizes ◽  
Latex Particles ◽  
Cationic Latex

Herein, cationic latex particles (CL) of different particle sizes were introduced as a cross-linking center to enhance the mechanical properties of the hydrophobically-associated hydrogels (P(AAm-co-HMA)-CL).

Pigment printing of polyester fabric using a single step synthesized PDMS-modified polyurethane-acrylic/pigment hybrid emulsion

2021 ◽  
pp. 004051752110185
Author(s):  
Ziwen Xie ◽  
Xiaofei Yan ◽  
Jiawei Li ◽  
Chenkai Zhu ◽  
Dongming Qi
Keyword(s):  
Mechanical Properties ◽  
Miniemulsion Polymerization ◽  
Polyester Fabric ◽  
Air Permeability ◽  
Single Step ◽  
Thermal And Mechanical Properties ◽  
Color Strength ◽  
Latex Particles ◽  
One Step ◽  
Hybrid Latex

A novel, waterborne polydimethylsiloxane (PDMS)-modified polyurethane-acrylic (Si-PUA)/pigment hybrid emulsion was synthesized by one-step miniemulsion polymerization for the pigment printing of polyester fabric. The phase structure, hydrophobicity, and thermal and mechanical properties of the formed films with different PDMS contents from the hybrid emulsion were investigated. The results indicated that the pigment particles were uniformly distributed in the homogeneous phase polymer substrate without phase separation occurring between the PDMS phase and polyurethane-acrylic. The hydrophobicity and toughness of the Si-PUA/pigment hybrid latex films gradually increased with the increase of PDMS content. Moreover, the obtained hybrid emulsion was used as a self-curable hybrid pigment that was applied to polyethylene terephthalate fabric for pigment printing. This showed that the Si-PUA/pigment hybrid latex particles yielded similarly good values in terms of color strength, and dry- and wet-rubbing fastness to the PDMS-free hybrid latex particles. Furthermore, use of the Si-PUA/pigment hybrid latex avoided certain problems related to printed fabric, such as poor air permeability and softness.

Effects of pH on the structure and mechanical properties of dried pH-responsive latex particles

Soft Matter ◽  
2017 ◽  
Vol 13 (41) ◽  
pp. 7562-7570 ◽  
Author(s):  
T. Sekido ◽  
M. Kappl ◽  
H.-J. Butt ◽  
S. Yusa ◽  
Y. Nakamura ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Ph Responsive ◽  
Latex Particles ◽  
Effects Of Ph

Effects of pH on the structure and rigidity of dried bulk pH-responsive latex particles were investigated.

Preparation and Property Studies of Core-Shell Structure Polyacrylate Microspheres for Plastisol

2013 ◽  
Vol 750-752 ◽  
pp. 797-801
Author(s):  
Xiao Li Song ◽  
Zeng Hui Cheng ◽  
Ying Chen ◽  
Yu Zhi Xu ◽  
Chun Peng Wang
Keyword(s):  
Mechanical Properties ◽  
Storage Stability ◽  
Polymerization Process ◽  
Cross Linking ◽  
Latex Particles ◽  
Emulsion Copolymerization ◽  
Dynamic Viscoelasticity ◽  
Spherical Structure ◽  
Hard Shell ◽  
And Storage

Soft-core/hard-shell polyacrylate latex with different cross-linking degree and shell thickness were prepared by semi-continuous seed emulsion copolymerization .The size, size distribution and morphology of latex particles were characterized using dynamic light scattering (DLS) and scanning electron microscopy (SEM). The properties of plastisol were investigated by testing their dynamic viscoelasticity and storage stability as well as the mechanical properties. The results showed that the latex particles always keep regular spherical structure throughout the polymerization process; Dynamic viscoelasticity of plasticized system with different cross-linking degree however had little changed. The mechanical properties of the plastigels could be improved by increasing the thickness of shell.

Polymer diffusion and mechanical properties of films prepared from crosslinked latex particles

2000 ◽  
Vol 72 (4) ◽  
pp. 45-61 ◽  
Author(s):  
Patrick Pinenq ◽  
Mitchell A. Winnik ◽  
Benoit Ernst ◽  
Didier Juhué
Keyword(s):  
Mechanical Properties ◽  
Polymer Diffusion ◽  
Latex Particles
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