scholarly journals Impact Modified Polyvinyl Chloride Based Thermoplastic Elastomers: Effect of Nitrile Butadiene Rubber and Graphene Oxide Loading

2021 ◽  
Vol 17 (1) ◽  
pp. 51-74
Author(s):  
Kuhanraj Vijayan ◽  
Mathialagan Muniyadi ◽  
Yamuna Munusamy
Keyword(s):  
Graphene Oxide ◽  
Impact Strength ◽  
Polyvinyl Chloride ◽  
Thermoplastic Elastomer ◽  
Thermoplastic Elastomers ◽  
Morphological Observation ◽  
Butadiene Rubber ◽  
Swelling Properties ◽  
Nitrile Butadiene Rubber ◽  
Micro Cracks

A new thermoplastic elastomer with improved impact and tensile properties was produced through melt blending of graphene oxide filled nitrile butadiene rubber (NBR-GO) and polyvinyl chloride (PVC) without the addition of plasticisers and thermal stabilisers. Nitrile butadiene rubber (NBR) compounds, with and without graphene oxide (GO) are prepared through latex compounding method and cured, prior to blending with PVC. The effect of NBR and NBR-GO loading on the process-ability and physico-mechanical properties of PVC blends were evaluated. The addition of NBR and NBR-GO improved tensile strength (TS), impact strength and swelling resistance of PVC. Addition of NBR also increased the stiffness of PVC due to higher elasticity of NBR as compared to PVC. Optimum impact strength, TS and swelling resistance was achieved with the addition of 10 wt. % NBR-GO. Good miscibility between NBR and PVC, and additional reinforcement by GO is responsible for enhancement of impact and TS. NBR-GO showed greater miscibility in PVC as compared to NBR as proven by morphological observation under scanning electron microscope. Morphological observation reveals that micro-cracks formation on PVC/30NBR surface which is responsible for low impact, tensile and swelling properties as compared to PVC/30NBR-GO composite.

In-situ Modification of Graphene Oxide by Insoluble Sulfur and Application for Nitrile Butadiene Rubber

2020 ◽  
Vol 35 (2) ◽  
pp. 221-228
Author(s):  
S.-B. Chen ◽  
T.-X. Li ◽  
S.-H. Wan ◽  
X. Huang ◽  
S.-W. Cai ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Butadiene Rubber ◽  
Nitrile Butadiene Rubber ◽  
In Situ Modification

scholarly journals Unique microstructure of an oil resistant nitrile butadiene rubber/polypropylene dynamically vulcanized thermoplastic elastomer

RSC Advances ◽  
2017 ◽  
Vol 7 (9) ◽  
pp. 5451-5458 ◽  
Author(s):  
Nanying Ning ◽  
Xiangyan Li ◽  
Hongchi Tian ◽  
Yueqing Hua ◽  
Hongli Zuo ◽  
...  
Keyword(s):  
Morphological Evolution ◽  
Thermoplastic Elastomer ◽  
Butadiene Rubber ◽  
Nitrile Butadiene Rubber ◽  
Thermoplastic Vulcanizates

This paper reports on the microstructure, morphological evolution and the properties of oil resistant nitrile butadiene rubber (NBR)/polypropylene (PP) thermoplastic vulcanizates (TPVs) prepared by dynamical vulcanization (DV).

scholarly journals The effect of ultrafine detonation synthesized diamond powder on the properties and structure of PVC-based thermoplastic elastomer

2020 ◽  
pp. 30-32
Author(s):  
E. Yu. Lapkovskaya ◽  
P. O. Sukhodaev ◽  
V. E. Red’kin ◽  
A. I. Lyamkin ◽  
D. V. Ershov
Keyword(s):  
Uniform Distribution ◽  
Polyvinyl Chloride ◽  
Polymer Matrix ◽  
Thermoplastic Elastomer ◽  
Diamond Powder ◽  
Thermoplastic Elastomers ◽  
Strength Characteristics

Samples of thermoplastic elastomers based on polyvinyl chloride (PVC) modified with ultrafine detonation-synthesed (nano) diamonds were obtained. It was found that small additives of nanodiamonds improve the strength characteristics and arrange the structure of PVC. A method that allows obtaining a uniform distribution of nanoparticles in a polymer matrix is proposed.

High-impact Composites of Polypropylene and Nitrile Butadiene Rubber with Improved Compatibility of the Polymer Components, Obtained by Melt Reactive Compounding. Part 2: The Influence of the Composition and Concentration of the Polymer Compatibiliser on the Impact Strength of the Composites

2018 ◽  
Vol 45 (4) ◽  
pp. 157-160
Author(s):  
Yu.M. Kazakov ◽  
A.M. Volkov ◽  
I.G. Ryzhikova ◽  
S.I. Vol'fson
Keyword(s):  
Maleic Anhydride ◽  
Impact Strength ◽  
Functional Groups ◽  
Aromatic Amine ◽  
High Impact ◽  
Vinyl Monomers ◽  
Butadiene Rubber ◽  
Nitrile Butadiene Rubber ◽  
Monoethylene Glycol ◽  
The Impact

We have studied the impact strength of composites of structural designation containing polypropylene (PP) and 23 wt% nitrile butadiene rubber BNKS-18AMN, obtained by peroxide modification in the presence of polar vinyl monomers: maleic anhydride, its polyester with monoethylene glycol (MEG), and a complex of MEG with aromatic amine antioxidant Diaphene FP (DFP). The composites also contained compatibilisers based on PP or its blends with 10 wt% BNKS-18AMN, modified with analogous peroxide modifying systems. Measurements of impact strength were conducted at temperatures of + 23°C and −30°C; the concentration range of all tested compatibilisers in the composites was 3–20 wt%. The dependence of the impact strength on the content of compatibilisers at both temperatures has a complex extremal nature. It was established that, of all the tested composites, the highest level of impact strength and a relatively slow fall in its values are ensured by a compatibiliser containing complex coagent MEG + DFP. The obtained results may be explained by the increased volume and more homogeneous structure of the transition interphase layer formed under these compounding conditions owing to the specific and effective nature of interaction of the MEG molecules with functional groups of the nitrile butadiene rubber in the interphase region of these composites, promoted by the presence of the secondary aromatic amine complexly bound with the MEG.

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