CHLUMINIT® EHA / Photoinitiator EHA / Omnirad EHA / Speedcure EHA CAS 21245-02-3

EHA is an efficient UV curing amine synergist, mainly used as the initiator of UV curing reaction. For example, it is used as an initiator for radiation curing in products such as UV-curable coatings and UV-curable inks.

Description

Photoinitiator EHA / Omnirad EHA / Speedcure EHA CAS 21245-02-3

Chemial Name:2-Ethylhexyl 4-dimethylaminobenzoate

Synonym: SpeedCure EHA; EHA;Omnirad EHA;Escalol 507;Eusolex 6007;Octyl dimethyl PABA;Padimate-O;EHDBA

CAS No:21245-02-3

Molecular Formula:  C17H27NO2

 Specification:

Appearance Slightly yellow liquid
Purity ≥99%
Volatiles ≤0.3%
Melting point 48 – 54℃
 

Transmittance

425nm ≥94%
500nm ≥97.5%
Clarity of solution Clear

Package:

25kg/Drum

Usage:

From UV-curable floor coatings, which are widely used in the construction industry, to the layer of strong and beautiful plastic coatings on plastic products, photoinitiator EHA plays an irreplaceable role. Take a well-known commercial building as an example. The floor is subject to heavy footfall and friction every day. However, the UV-curable floor coating with photoinitiator EHA added not only has greatly improved wear resistance, but also remains shiny and bright over the long term. This is thanks to the dense curing structure formed by the coating under UV irradiation.

In the communications sector, optical fiber coatings are essential for ensuring the stability of optical fibers and the quality of signal transmission. The use of photoinitiator EHA in optical fiber coatings is like putting on a tough layer of “armor” for optical fibers. According to relevant research data, optical fiber coatings with added photoinitiator EHA can extend the service life of optical fibers in harsh environments by about 30%, because photoinitiator EHA promotes the formation of special chemical bonds during the curing process of the coating, enhancing the coating’s ability to protect the optical fiber.

For the electronics industry, the use of photoinitiator EHA in light-curing solder-resistant inks and light-curing marking inks for circuit boards is of particular significance. We know that circuit boards in electronic products are like the human nervous system, and their stability directly affects the performance of the product. Soldering inks containing photoinitiator EHA can precisely protect the parts of the circuit board that do not need to be soldered after curing with UV light, preventing problems such as short circuits. In one large electronics manufacturer, for example, the defective product rate due to circuit board failures has been reduced by about 25% thanks to the use of this advanced photo-curing soldering ink. Meanwhile, photoinitiator EHA in photo-curable marking inks ensures clear and durable markings, facilitating subsequent production, testing and maintenance processes.

In addition, photoinitiator EHA also plays an important role in the manufacture of optical discs. The coating on the surface of the disc needs to have high hardness, high transparency and good wear resistance. Photoinitiator EHA makes the disc coating meet these stringent requirements after UV curing, ensuring the stability of the data stored on the disc and the accuracy of reading.

It is worth mentioning that with the continuous development of technology, we can assume that if the molecular structure of photoinitiator EHA is further optimized, can we develop new coatings and inks suitable for more special environments? For example, in the aerospace industry, in the face of extreme temperature, radiation and pressure conditions, this optimized photoinitiator may help develop high-performance protective coatings to provide better protection for aerospace equipment, which will undoubtedly be another major breakthrough in the field of materials science. At the same time, we are also constantly exploring new materials and research results to further tap the potential of photoinitiator EHA to provide strong support for the development of more fields.

Storage:

Being kept in dry, clean warehouse with well ventilation.

Avoid exposing to light and heating.

Protecting the product from leakage, rain and insolation during transportation.

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Photoinitiator EHA Application scenarios

1. Sunscreen Cosmetics:

Used as a UVB (around 310 nm) absorber in sunscreens, lotions, and sprays for face and body protection. Also used in lipsticks, conditioners, and other cosmetics/personal care products to protect skin and formulations from UV damage.

2. Amine Synergist for UV Curing Coatings:

Used in combination with Type II photoinitiators (such as thioxanthones, acetophenones) in UV clear/colored coatings for paper, wood, metal, and plastics, improving curing efficiency and eliminating oxygen inhibition. Suitable for furniture coatings, coil coatings, and plastic topcoats.

3. UV Printing Inks:

Used in UV inks for offset, flexographic, and screen printing, suitable for packaging and label printing, improving curing speed and weather resistance of printed materials, meeting low VOC and high-speed printing requirements.

4. UV Curing Adhesives:

Used in UV adhesives for optical devices, electronic components, and plastic/metal bonding, improving bonding strength and aging resistance, suitable for precision assembly applications.

5. Polymer Synthesis and Modification:

Used as an amine synergist in the UV polymerization of monomers such as acrylates, synthesizing or modifying UV-curable resins and water-based polymer materials for applications in coatings, adhesives, and daily chemical industries.

6. UV Stabilizer for Plastics and Coatings:

Used in plastic products such as agricultural films, sunshades, and outdoor tents, as well as wood coatings and varnishes, reducing yellowing and aging caused by UV light and improving material weather resistance.

7. 3D Printing Photopolymer Resins:

Used in SLA/DLP photopolymer resins, combined with photoinitiators to improve curing speed and molding accuracy, suitable for prototyping and fine model fabrication.

8. Electronic Materials and Functional Coatings:

Used in protective coatings for electronic components and optical films, improving the UV resistance and stability of the coatings, suitable for display devices and electronic packaging.

9. Analytical and Testing Standard Substance:

Used for qualitative and quantitative analysis of EHA components in cosmetic testing and environmental monitoring, as well as for quality control in related laboratory measurements.

Additional information

Chemical Name

2-Ethylhexyl 4-dimethylaminobenzoate

CAS No.

21245-02-3

Molecular Formula

C17H27NO2

Assay

≥99%

Package

25kgs/Drum

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