Tert-Butyl Peroxyneodecanoate (BNP) – A High-Efficiency Initiator for Polymerization
Nov 29, 2024|
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Ava, the team leader of Evergreen Chemicals OP expert database and the brand director of Nouryon, participated in the drafting of OP safety standards and is well versed in the global supply relationship of peroxides.
AVA
Nouryon Brand DirectorBNP (Tert-Butyl Peroxyneodecanoate) Key Properties and Physical Characteristics
BNP, or Tert-Butyl Peroxyneodecanoate, is widely used as a medium-temperature initiator in various chemical applications. It is commonly used in unsaturated polyester resins (UPR), acrylics, and PVC. Key properties include:
Active Oxygen Content: 4.89%
Purity: 75% (with 25% iso-dodecane solvent)
Flashpoint: 55°C
Self-Accelerating Decomposition Temperature (SADT): 20°C
These properties make BNP a highly effective initiator, but it also requires careful handling due to its sensitivity to temperature.
Basic Information on BNP
Chemical Name:Tert-butyl peroxyneodecanoate
CAS Number:26748-41-4
UN Number:3103
Applications of BNP in Various Industries
BNP is a versatile initiator used across multiple industries. Below are its key applications:
BNP in Unsaturated Polyester Resins (UPR)
BNP is particularly effective in SMC (Sheet Molding Compound) processes, commonly used in producing high-performance composite materials. It provides excellent decomposition stability, making it ideal for the production of automotive parts, household appliance exteriors, and construction materials.
BNP in Acrylics and Acrylate Esters
BNP is used as an initiator in the polymerization of acrylic acid and acrylate esters. It helps maintain a consistent polymerization rate, significantly enhancing the quality of the final product. Applications include coatings, adhesives, and sealants.
BNP in PVC (Polyvinyl Chloride)
In suspension polymerization of PVC, BNP plays a crucial role as an initiator, improving the polymerization degree and particle morphology. This application is essential for producing high-quality PVC products such as pipes and profiles.
Packaging and Transportation of BNP
Given BNP's temperature sensitivity, special packaging and transportation considerations are required.
Packaging
Standard Packaging:30-liter HDPE (high-density polyethylene) drums, complying with international shipping regulations.
Custom Packaging:Available upon request, contact the supplier for more details.
Temperature Control:BNP should be stored in a cold storage facility at temperatures between -30°C to -10°C to prevent crystallization and ensure stability.
Shipping:Transport requires special permits for sea freight and land freight. Rail and air transport are generally prohibited.
Handling:Minimize the exposure of BNP to high temperatures during loading and unloading to ensure the product remains stable and safe.

Tert-Butyl Peroxyneodecanoate (BNP) is a highly effective initiator for various polymerization processes. Its unique properties and diverse applications make it a critical component in the production of advanced materials. If you are interested in learning more about BNP or its applications in your industry, contact EverGreen Chemicals for further information.








