1、Effect of CTBN and Nano

In this study, a new type of flexible resin material (C-ER) was prepared by modifying epoxy resin with liquid nitrile butadiene rubber (CTBN) and nano-SiO2.

2、Toughener

CTBN modified epoxy resins are prepolymers that are obtained by reaction of nitrile rubber with epoxy resins. These versatile products offer significant improvement in technical properties such as impact strength, tensile shear strength, flexibility and adhesion to oily steel.

3、Mechanical, Thermal, and Electrical Properties of BN–Epoxy Composites

In this work, high thermal conductivity filler boron nitride (BN) was used to fill the epoxy resin to improve the thermal conductivity of the composite. At the same time, the epoxy resin was modified with CTBN.

4、改性环氧树脂_百度百科

改性环氧树脂用液体端羧基丁腈橡胶 (CTBN)增韧：一般添加量为10 %，其中CTBN的丙烯腈含量在18-30%较好，其中还可并用30%的 二氧化硅，以避免加入CTBN后的强度降低。

5、Synthesis of carboxyl

Carboxyl-terminated liquid nitrile-butadiene-butylacrylate rubber (CTBNB) is a modified variety of CTBN, and its flexible ester functional groups can act as plasticizers and improve the low-temperature and heat resistance of polymer chains.

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Herein we study the effect of epoxidation of liquid CTBN on thermal, mechanical and rheological properties of epoxy resin to better understand the structure-property relationship in rubber-filled epoxy resins and investigate it as a potential way for adjusting the properties of epoxy resins.

Curing Conditions of CTBN

CTBN (carbon nanotube)-modified epoxy resin, as an emerging composite material, has garnered significant attention due to its unique mechanical properties, electrical conductivity, and superior corrosion resistance.

The preparation and application of CTBN modified epoxy

Purpose – The purpose of this study is to investigate the effects of two epoxy ratio and carboxyl-terminated butadiene solid rubber (CTBN) content on adhesive and flexible copper clad laminate (FCCL) performance.

Journal of Applied Polymer Science

Carboxymethyl-β-cyclodextrin (CM-β-CD) and carboxyl terminated liquid nitrile rubber (CTBN) were used as binary component fillers in toughening the epoxy resin (E-54).

Synthesis and Performance Analysis of Repolymerized Epoxy Resin

In this study, we used repolymerized epoxy resin as the matrix and added carboxyl‐terminated nitrile rubber (CTBN) and nano‐cerium dioxide (n‐CeO2) to improve its impact strength without compromising its thermal properties.

In the modern field of materials science, epoxy resins have gained significant attention due to their excellent chemical stability, mechanical properties, and electrical insulation. traditional epoxy resins often suffer from limitations such as brittleness and poor heat resistance. To overcome these drawbacks, scientists have developed various modification strategies, among which CTBN (carboxy-terminated butadiene nitrile rubber)-modified epoxy resins stand out due to their unique physical and chemical properties. This article explores the preparation methods, performance characteristics, and application prospects of CTBN-modified epoxy resins.

Preparation Methods

The fabrication of CTBN-modified epoxy resins typically involves the following key steps:

1. Selection and Pretreatment of Resin: A suitable epoxy resin, such as bisphenol A-type epoxy resin, is chosen as the matrix. The resin is then pretreated to remove impurities and adjust viscosity, ensuring uniform dispersion.

2. Dispersion of CTBN: The preprocessed epoxy resin is mixed with an appropriate amount of CTBN. Techniques like high-speed shearing, ultrasonication, or ball milling are employed to achieve homogeneous dispersion of CTBN in the resin. This step is critical for obtaining high-performance composites.

3. Curing Reaction: The mixture is cured under specific conditions to form a composite material with desired properties. Common curing methods include thermal curing, photocuring, and chemical curing.

4. Post-Treatment: To further improve mechanical performance and durability, post-treatment processes such as heat treatment or surface modification may be applied.

Performance Characteristics

CTBN-modified epoxy resins exhibit a range of remarkable properties:

• High Specific Strength and Modulus: The addition of CTBN significantly enhances tensile and compressive strength while maintaining good toughness and impact resistance, making it ideal for aerospace and automotive applications.
• Excellent Thermal and Chemical Resistance: CTBN improves the heat resistance and chemical corrosion resistance of epoxy resins, enabling use in extreme environments.
• 优越的电气性能: The modified epoxy retains strong electrical insulation properties, suitable for electronic device encapsulation.
• Ease of Processing: CTBN-modified epoxy resins demonstrate high fluidity and processability, facilitating the molding of complex structures.

Application Prospects

Owing to their unique advantages, CTBN-modified epoxy resins hold broad potential across multiple fields:

1. Aerospace: Used in lightweight, high-strength composite components for aircraft and spacecraft structures.
2. Automotive Industry: Applied in high-performance automotive bodies, chassis, and other parts to reduce weight and improve fuel efficiency.
3. Electronic Packaging: Provides enhanced electrical performance and thermal stability for semiconductor encapsulation.
4. Medical Devices: Suitable for manufacturing surgical instruments and orthodontic devices due to its biocompatibility and mechanical robustness.
5. Construction: Utilized in flooring, ceilings, and exterior decorations to improve building performance and aesthetics.

As an innovative material, CTBN-modified epoxy resin offers exceptional performance tailored to diverse applications. With advancements in technology and growing market demands, CTBN-modified epoxy resins are poised to play a pivotal role in future materials science and engineering.