scholarly journals Effect of Silane Coupling Agent on Modification of Areca Fiber/Natural Latex

Materials ◽  
2020 ◽  
Vol 13 (21) ◽  
pp. 4896
Author(s):  
Yiren Pan ◽  
Meng Zhang ◽  
Jian Zhang ◽  
Xiaoyao Zhu ◽  
Huiguang Bian ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Coupling Agent ◽  
Silane Coupling Agent ◽  
Natural Rubber Latex ◽  
Physical And Mechanical Properties ◽  
Coupling Agents ◽  
Silane Coupling Agents ◽  
Swelling Properties ◽  
Silane Coupling ◽  
Physical And Chemical

In this paper, the areca fiber was extracted by physical and chemical treatment, and then the areca fiber/natural latex composite was prepared by natural latex impregnation technology. In order to combine areca fiber and natural rubber latex better, three silane coupling agents with different action mechanism were selected: Si−69, KH550, and KH570 which were used to treat the areca fiber/natural latex compound. The results show that the silane coupling agent can change the surface of the fiber from hydrophilic surface to organophilic surface, making the bonding of areca fiber to natural latex more closely. At the same time, the mechanical properties, physical and mechanical properties, swelling properties, and dynamic viscoelastic properties of the tightly bonded areca fiber/nature latex composites were improved. After observing the micro-structure through a scanning electron microscope, it was found that the three silane coupling agents could effectively bind areca fiber and natural latex to enhance the performance of the composite material, of which Si−69 performed best, and the tensile strength and tear strength of the composite increased by 21.19% and 12.90% respectively.

scholarly journals The Investigation of the Silica-Reinforced Rubber Polymers with the Methoxy Type Silane Coupling Agents

Polymers ◽  
2020 ◽  
Vol 12 (12) ◽  
pp. 3058
Author(s):  
Sang Yoon Lee ◽  
Jung Soo Kim ◽  
Seung Ho Lim ◽  
Seong Hyun Jang ◽  
Dong Hyun Kim ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Coupling Agent ◽  
Silane Coupling Agent ◽  
Testing Machine ◽  
Styrene Butadiene Rubber ◽  
Coupling Agents ◽  
Butadiene Rubber ◽  
Silane Coupling Agents ◽  
Rubber Composites ◽  
Silane Coupling

The methoxy-type silane coupling agents were synthesized via the modification of the hydrolyzable group and characterized to investigate the change in properties of silica/rubber composites based on the different silane coupling agent structures and the masterbatch fabrication methods. The prepared methoxy-type silane coupling agents exhibited higher reactivity towards hydrolysis compared to the conventional ethoxy-type one which led to the superior silanization to the silica filler surface modified for the reinforcement of styrene-butadiene rubber. The silica/rubber composites based on these methoxy-type silane coupling agents had the characteristics of more developed vulcanization and mechanical properties when fabricated as masterbatch products for tread materials of automobile tire surfaces. In particular, the dimethoxy-type silane coupling agent showed more enhanced rubber composite properties than the trimethoxy-type one, and the environmentally friendly wet masterbatch fabrication process was successfully optimized. The reactivity of the synthesized silane coupling agents toward hydrolysis was investigated by FITR spectroscopic analysis, and the mechanical properties of the prepared silica-reinforced rubber polymers were characterized using a moving die rheometer and a universal testing machine.

Effects of Coupling Agents on the Mechanical Properties of the Calcium Carbonate-Plastic Composite Packaging Materials

2012 ◽  
Vol 200 ◽  
pp. 321-324 ◽  
Author(s):  
Zhao Xia Wang ◽  
De Gao ◽  
Wen Cai Xu
Keyword(s):  
Mechanical Properties ◽  
Calcium Carbonate ◽  
Coupling Agent ◽  
Silane Coupling Agent ◽  
Great Influence ◽  
Coupling Agents ◽  
Packaging Materials ◽  
Plastic Composite ◽  
Silane Coupling ◽  
The Impact

Mechanical properties of the calcium-plastic composite have a great influence on the containers. The main factors affecting the mechanical properties are the process and material formulations. This paper mainly describes its impact of the addition of coupling agent. Under the usage of analysis of variance on single factor experiment, the mechanical properties of the calcium carbonate-plastic composite with three different coupling agents (silane, titanate and aluminate) were studied in the same test conditions. The results show that: The type and quantity of the coupling agent effect a lot on the mechanical properties of the composite. The silane coupling agent is the most suitable for calcium carbonate-plastic composite packaging materials, and the compatibility of calcium carbonate and polyethylene can be improved. When the silane coupling agent was at a 2.25 wt. % concentration, the tensile and flexural strength were improved obviously, especially the tensile strength increased by 23.24%, but the impact strength improved slightly.

Surface Functionalization of Zirconia Nanocrystals with Silane Coupling Agent and its Dispersion Behavior in O-Phenylphenoxyethyl Acrylate

2018 ◽  
Vol 922 ◽  
pp. 20-25 ◽  
Author(s):  
Hee Seon Lee ◽  
Jeong Min Park ◽  
Kyu Hong Hwang ◽  
Hyung Mi Lim
Keyword(s):  
Coupling Agent ◽  
Silane Coupling Agent ◽  
Coupling Agents ◽  
Solvothermal Reaction ◽  
Silane Coupling Agents ◽  
Propyl Methacrylate ◽  
Silane Coupling ◽  
Ft Ir ◽  
Surface Modified ◽  
Dispersion Of Nanoparticles

Highly crystalline and dispersible zirconia, synthesized by solvothermal reaction of zirconium (IV) isopropoxide isopropanol complex in benzyl alcohol, were functionalized with silane coupling agent and dispersed with o-phenylphenoxyethyl acrylate (OPPEA). Silane coupling agents such as 3-aminopropyltriethoxysilane (APTES) of amino functional silane, decyltrimethoxysilane (DTMS) of alkyl functional silane and 3-(trimethoxysilyl) propyl methacrylate (MPS) of acrylate functional silane have been used to modify nanoparticle surfaces and obtain dispersion of nanoparticles within OPPEA. The surface modified zirconia was compared according to silane coupling agent, FT-IR and TGA demonstrated that APTES, DMTS and MPS are chemically attached to the surface of the zirconia. The MPS-zirconia is dispersed as about 5 nm sized, whereas the APTES-zirconia, DTMS-zirconia are agglomerated. The MPS-zirconia/tetrahydrofuran (THF) sol at 15wt% loading shows high transmittance of 68 % at 550 cm-1 and the 50wt% surface modified-zirconia/OPPEA sol show refractive index of 1.657.

scholarly journals Treatment of hollow glass bubbles with silane coupling agent. sem on hollow glass bubbles, before and after treatment with silane coupling agent

2021 ◽  
Vol 2 (2) ◽  
pp. 1-7
Author(s):  
Andrei-Ionut Perdum
Keyword(s):  
Coupling Agent ◽  
Silane Coupling Agent ◽  
Hollow Spheres ◽  
Coupling Agents ◽  
Silane Coupling Agents ◽  
Hollow Glass ◽  
Glass Spheres ◽  
Silane Coupling ◽  
Before And After ◽  
Glass Bubble

In this study will be presented, how 20 millilitres of Silane Coupling Agent, adhered on 5 grams of Hollow Glass Bubbles (HGB), how the micro bubbles are looking before and after mixing, how to filter the hollow spheres from the agent and what needed to be taken in consideration when using coupling agents in processes. This paper will show how Silane Coupling Agent (3-Aminopropyl) triethoxysilane, adhered on the Hollow Glass Bubble (HGB). It is expected to observe at HR-SEM (High- Resolution Scanning Electron Microscopy) how the Hollow Glass Bubbles looks when the Silane Coupling Agent (KH-550) is applied on the filler vs when is not. During the process will be concluded, what risks should be taken in consideration, when using Silane Coupling Agents on Hollow Glass Spheres and what important information/ steps are needed to be taken in consideration before and after coupling treatment.

scholarly journals Synergistic effects of zwitterionic segments and a silane coupling agent on zwitterionic shape memory polyurethanes

RSC Advances ◽  
2017 ◽  
Vol 7 (67) ◽  
pp. 42320-42328 ◽  
Author(s):  
Zaochuan Ge ◽  
Huanhuan Ren ◽  
Shuqin Fu ◽  
Shaojun Chen
Keyword(s):  
Shape Memory ◽  
Coupling Agent ◽  
Silane Coupling Agent ◽  
Synergistic Effects ◽  
Coupling Agents ◽  
Silane Coupling Agents ◽  
Structure Morphology ◽  
Silane Coupling ◽  
Shape Memory Properties ◽  
Novel Strategy

A novel strategy to improve shape memory properties of ZSMPUs by using a silane coupling agent. The synergistic effects of zwitterionic segments and silane coupling agents on the structure, morphology, properties were carefully investigated.

The Effect of Silane Coupling Agent and Fiber on Microencapsulated Paraffin Insulation Mortar

2011 ◽  
Vol 71-78 ◽  
pp. 3687-3690
Author(s):  
Shu Lian Chen ◽  
Hua Yan ◽  
Jian Zhang
Keyword(s):  
Coupling Agent ◽  
Silane Coupling Agent ◽  
Polypropylene Fiber ◽  
Coupling Agents ◽  
Silane Coupling Agents ◽  
Silane Coupling ◽  
And Performance

This paper mainly deals with the preparation and performance of microencapsulated paraffin insulation mortar. Silane coupling agents are used to modify the surface of the microencapsulated paraffin, and fibers are introduced to solve the cracking of microencapsulated paraffin insulation mortar. Research has been carried out on the effect of the type and dosage of silane coupling agents and fibers on the performance of insulation mortar, the result of which shows that KH550 and polypropylene fiber are of good performance and that their optimum dosages are 13% and 0.3% respectively, the dosage was referred to as the percentage according to the weight of cement.

Effects of Silane Coupling Agents on the Adhesion Strength of a Printed Cu Circuit on Polyimide

2020 ◽  
Vol 12 (4) ◽  
pp. 594-599
Author(s):  
Choong-Jae Lee ◽  
Bum-Geun Park ◽  
Kwang-Ho Jung ◽  
Yongil Kim ◽  
Seung-Boo Jung
Keyword(s):  
Adhesion Strength ◽  
Chemical Bonding ◽  
Coupling Agent ◽  
Silane Coupling Agent ◽  
Organic Materials ◽  
Coupling Agents ◽  
Silane Coupling Agents ◽  
Substrate Interface ◽  
Silane Coupling ◽  
Screen Printed

It is difficult to maintain high adhesion strength between a printed metal circuit and polymer substrate due to the weak chemical bonding of metal and organic materials. Therefore, an additional process is necessary to improve the adhesion strength. Silane coupling agents (SCAs), which are capable of forming bonds with metals and organic materials, can provide a solution. Here, SCAs were placed on polyimide (PI) substrates and coated with various functional groups to compare the effects of various functionalized SCAs on the adhesion strength between a screen-printed copper (Cu) circuit and the PI substrate, where the printed Cu patterns were fabricated on the coated PI substrate. Chemical bonding between the coated silane coupling agent and the PI substrate interface was investigated by X-ray photoelectron spectroscopy. The adhesion strength of the screen-printed Cu circuit and PI substrate interface was measured by a roll-type 90° peel test. The surface free energy was calculated using the contact angle. The failure mode was analyzed by field emission scanning electron microscopy. The silane coupling agent containing an amine functional group significantly improved the adhesion strength because it facilitates a superior bond between organic substrates and metals via chemical reactions such as copolymerization and graft copolymerization. As a result, the adhesion strength between the printed Cu pattern and PI increased about 4.26 times with the use of SCAs.

New Silane and MAPP Coupling Agents as Natural Composites Production Systems Improvement

2015 ◽  
Vol 669 ◽  
pp. 52-59
Author(s):  
Jiří Bobek ◽  
Petr Lenfeld ◽  
Jiří Habr ◽  
Martin Seidl ◽  
Luboš Běhálek
Keyword(s):  
Mechanical Properties ◽  
Coupling Agent ◽  
Fiber Composite ◽  
Glass Fibers ◽  
Tensile Modulus ◽  
System Stability ◽  
Coupling Agents ◽  
Silane Coupling Agents ◽  
Plant Fibers ◽  
Silane Coupling

Still more and more applications using synthetic polymers find new material alternative in materials based on synthetic polymer filled with nature fibers mainly plant fibers. Not only in common applications but also in technical applications is possible to use nature fiber composites. But some additional modifications are necessary to perform to gain properties possible to use in technical applications. Mainly increasing adhesion between matrix and fibers is the most common intent of these additional operations. This paper deals with maleic anhydride based coupling agent and silane coupling agent effect in the polypropylene matrix and jute fiber composite and its mechanical properties. By using of silane coupling agents was achieved mechanical properties which are possible to compare with composites with glass fibers mechanical properties mainly in case of the flexural and tensile modulus and mainly was gained significant increasing of composite production system stability.

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