1、Mechanical behavior of liquid nitrile rubber
Quasi-static and dynamic experiments were carried out to examine the influence of liquid nitrile rubber (LNBR) on the compressive behavior of epoxy resin.
2、An overview of synthetic modification of nitrile group in polymers and
In this context, the synthetic modifications of nitrile group in polymers into various useful functionalities have received considerable attention and several interesting applications of the resulting polymers have been identified.
3、Nitrile modified phenolic resin CAS#:
ChemicalBook 致力于为化学行业用户提供Nitrile modified phenolic resin的性质、化学式、分子式、比重、密度,同时也包括Nitrile modified phenolic resin的沸点、熔点、MSDS、用途、作用、毒性、价格、生产厂家、用途、上游原料、下游产品等信息。
CNSL Resin Modifiers for Rubber Applications
These renewable resins help lower compound viscosity and increase elongation due in part to the long aliphatic side chain inherited from CNSL. The unique structure of these resins enables rubbers to retain good elongation even after aging.
改性丁腈
本研究主要是探討由改性丁腈橡膠 (acrylonitrile-butadiene rubber)與resol型酚醛樹脂 (phenol–formaldehyde resin)，所參混而成的丁腈-酚醛接著劑 (Nitrile rubber-Phenolic resin Adhesives)，針對不同金屬及橡膠基材之接著性能。
Mechanical Behavior of Liquid Nitrile Rubber
Quasi-static and dynamic compression experiments were performed to study the influence of liquid nitrile rubber (LNBR) on the mechanical properties of epoxy resin.
Mechanical properties of glass fibre composites based on nitrile rubber
In this study, a two-component commercial epoxy resin (ISX-10 by Mates Italiana) has been modified by dispersing a nitrile liquid rubber (STRUKTOL ® POLYDIS ® 3605) prior the cure at two concentration levels (20%w/w; 30%w/w) at the main aim to improve the dynamic response of polymeric composite laminates in terms of impact damage reduction.
Mechanical behavior of liquid nitrile rubber
Mechanical behavior of liquid nitrile rubber-modified epoxy resin: experiments, constitutive model and application
An Overview of Synthetic Modification of Nitrile Group in Polymers and
In this sce- nario, this present review covers the literatures on the chemical modification of nitrile group in polymers and its major applications especially reported over the last three decades.
Polyphthalonitrile resins and their high
Phthalonitrile resin belongs to a unique class of addition-curable, high-temperature polymeric material having a great potential for applications in aerospace, marine fields, etc.
In the field of modern materials science, nitrile-modified resins, as a special class of synthetic polymer materials, have garnered significant attention due to their unique physical and chemical properties, as well as broad application prospects. Nitrile resin, also known as nitrile-butadiene rubber (NBR), is a thermosetting polymer synthesized through free radical polymerization of butadiene. Renowned for its excellent mechanical properties, oil resistance, solvent resistance, and good processability, NBR is widely used in industries such as automotive, aviation, electronics, construction, and more. its inherent poor heat resistance and low-temperature performance limit its applications in extreme environments. Modifying NBR not only enhances its comprehensive properties but also expands its usability, meeting the demands of diverse fields. This article explores the fundamental properties of NBR, modification methods, and the significance of performance improvements in practical applications.
Fundamental Properties of Nitrile Resin
The properties of NBR include molecular structure, thermal stability, mechanical strength, and chemical resistance. Composed of butadiene units, its molecular chain structure endows it with superior mechanical strength and elasticity, making it ideal for manufacturing various industrial products. NBR exhibits relatively high thermal stability, withstanding moderate high temperatures, but its performance deteriorates at low temperatures, becoming rigid or brittle. Additionally, its excellent oil and solvent resistance enables reliable performance in environments involving oils or chemicals. these traits also restrict its full potential under specific conditions, underscoring the importance of targeted modifications.
Modification Methods for Nitrile Resin
Modification approaches for NBR are diverse, primarily categorized into physical, chemical, and hybrid methods:
- Physical Modification: Enhances mechanical properties via filling or reinforcing agents, such as glass fibers, carbon fibers, or aramid fibers, which improve strength and rigidity.
- Chemical Modification: Introduces specific functional groups (e.g., maleic anhydride, acrylates) to alter chemical properties, enhancing solvent or chemical resistance.
- Hybrid Modification: Combines multiple methods (e.g., physical and chemical) to achieve superior overall performance without compromising core attributes.
Performance Enhancements Post-Modification
Modified NBR demonstrates significantly improved properties:
- Mechanical Performance: Maintains toughness and strength in extreme temperatures (both high and low).
- Chemical Resistance: Expands stability in a wider range of chemical environments.
- Processability: Improved flowability and reduced viscosity facilitate easier molding, lowering processing costs.
Practical Significance of Modified NBR
Modified NBR opens new application domains, particularly in aerospace, automotive lightweighting, and electronics. Advances in modification techniques also guide future research directions, potentially yielding more efficient and eco-friendly methods. As material science progresses, further optimization of NBR’s properties will enable its use in increasingly demanding scenarios.
As a critical engineering plastic, the development of NBR modification technologies is pivotal to advancing materials science. Through physical, chemical, and hybrid modifications, NBR’s performance and applicability are enhanced, fostering innovation and contributing to socioeconomic growth. With ongoing technological advancements, NBR is poised to unlock greater value and potential across diverse sectors.
