1、Novel UV

Novel UV-curable epoxy resins modified with alkynes were synthesized. It was found that resins modified with propargylic acid (terminal alkyne) showed more photosensitivity and resins with thiol addition exhibited excellent triple bond conversion (the highest is nearly 100 %).

2、Synthesis and Characterization of UV

UV-curable resins are obtained by incorporating the synthesized monomer as the thiol component. The effects of thiol content on the UV-curing behavior, refractive index, shrinkage, adhesion to the polyethylene terephthalate (PET) foil, and viscoelastic recovery are examined.

3、UV

This UV-curable thiol-ene system provides a fast and convenient alternative for the fabrication of thin IR transparent objects.

4、Thiol

These monomers, derived from renewable resources and synthesized using green chemistry principles, were used in thiol-ene photocuring reactions with trimethylolpropane tris (3-mercaptopropionate) as the thiol.

Novel UV

Considering the highly efficient reactivity of thiol-yne click chemistry, the triple bond conversion of photocurable resins with and without thiol addition were prepared and compared to investigate the photosensitivity of them.

Fabrication and characterization of UV

In this study, we synthesized thiol-functionalized, photopolymerizable siloxane resins containing either methyl groups or a combination of methyl and phenyl groups.

Rational design of a room‐temperature curing

In this study, we introduce a rational design strategy for high-strength, high-adhesion coatings by the room-temperature photoanionic curing of epoxy resins with a thiol cross-linker without void concern, making use of a PBG that can generate a superbase without decarboxylation (Scheme 1).

Model of UV

Then, the same molar ratio of AUPET and TMMP was used to prepare UV-curable resin with TPO as photo-initiator. Fig. 2 shows the chemical structure of the main reagents used in this paper.

Fabrication and characterization of UV

This study proposes elastomers based on ultraviolet (UV)-curable siloxane resins, which retain outstanding flexibility and transparency while significantly enhancing adhesion properties.

Novel UV

Considering the highly efficient reactivity of thiol-yne click chemistry, the triple bond conversion of photocurable resins with and without thiol addition were prepared and compared to investigate the photosensitivity of them.

With the rapid development of science and technology, the field of materials science has experienced revolutionary breakthroughs. Among numerous novel materials, thiol-modified UV-curable resins are gradually becoming a research hotspot due to their unique performance advantages. Thiol-modified UV-curable resins refer to photopolymerizable resins with thiol groups (-SH) chemically incorporated into their molecular structures, endowing them with new functional properties. This paper aims to explore the research progress of thiol-modified UV-curable resins and their significance and potential in practical applications.

I. Concept and Characteristics of Thiol-Modified UV-Curable Resins

Thiol-modified UV-curable resins are photopolymerizable resins containing thiol (-SH) functional groups. Thiols, known for their reducing properties, can form stable complexes with certain metal ions, thereby influencing the resin’s performance. This modification enables the resin to undergo cross-linking reactions with multiple metal ions during curing, achieving multifunctionalization of the material.

The characteristics of thiol-modified UV-curable resins are primarily reflected in the following aspects:

1. Excellent Chemical Stability: These resins maintain stability under harsh conditions such as high temperatures and humidity, resisting degradation or discoloration.
2. Good Mechanical Performance: They exhibit high hardness and toughness, meeting the demands of various mechanical processing and repair applications.
3. Superior Corrosion Resistance: The resins resist erosion by acids, alkalis, and other chemicals, extending the material’s service life.
4. High Design Flexibility: By adjusting the type and content of thiol groups, the material’s properties can be precisely controlled.
5. Environmental and Energy Efficiency: The preparation process is relatively simple and free of harmful substances, aligning with green and eco-friendly requirements.

II. Application Prospects of Thiol-Modified UV-Curable Resins

Due to their unique properties, thiol-modified UV-curable resins show broad application potential across multiple fields:

1. Aerospace Industry: They can be used to manufacture high-performance composites, such as carbon fiber-reinforced resin matrix composites, which offer high strength, rigidity, corrosion resistance, and heat resistance.
2. Medical Devices: Suitable for fabricating dental restorations, orthopedic implants, and other medical devices. Their excellent biocompatibility and osteointegration capabilities ensure long-term stability.
3. Electronics Industry: Applied in circuit board protective layers and electronic component encapsulation. Their electrical insulation and anti-aging properties enhance product reliability and lifespan.
4. Automotive Manufacturing: Used for automotive interiors and body components. Their wear resistance, scratch resistance, and ease of cleaning improve overall vehicle quality and user experience.

III. Research Progress on Thiol-Modified UV-Curable Resins

In recent years, significant advancements have been made in thiol-modified UV-curable resin research. By altering the type, content, and ratio of thiol groups to photoinitiators, researchers have achieved precise control over resin properties. Additionally, studies on curing mechanisms have revealed that cross-linking reactions between thiol groups and metal ions can accelerate the curing process under specific conditions.

IV. Conclusion and Outlook

thiol-modified UV-curable resins, as emerging materials, hold vast application prospects. realizing their full potential requires addressing key challenges, such as improving the efficiency of thiol-metal ion cross-linking reactions and optimizing formulations for diverse applications. Looking ahead, with continuous technological advancements, thiol-modified UV-curable resins are expected to play an increasingly critical role across industries, contributing significantly to human progress.