The manufacturing principle of spray foam insulation materials
Spray Foam Insulation (SPF) is an advanced thermal insulation material made by precisely controlling the chemical reaction of two key liquid components, polyol resin and isocyanate. When these two components are mixed in a special spraying device, a rapid polymerization reaction occurs under the action of a catalyst, and carbon dioxide gas is released at the same time, causing the mixture to expand 30-60 times in a few seconds, eventually forming a polyurethane foam with excellent thermal insulation properties.
The core of this chemical process is the addition polymerization reaction of isocyanate (-NCO) and polyol (-OH), and the foaming reaction of isocyanate and water to generate carbon dioxide. The balance of these two competing reactions directly determines the final performance of the foam, and this is exactly where polyurethane catalysts play a key role.
Excellent performance of MXC-BDMA catalyst
Our MXC-BDMA (N,N-dimethylbenzylamine, CAS 103-83-3) is a highly efficient amine catalyst optimized for polyurethane rigid foam, showing multiple technical advantages in the production of spray foam insulation materials:
1. Precise reaction control
- Provides an ideal balance of foaming/gelling reactions
- Ensures a stable rising curve and curing time
- Adapts to different ambient temperature and humidity conditions
2. Excellent foam quality
- Forms a uniform and fine closed-cell structure (closed-cell ratio>90%)
- Improves the early fluidity of the foam and ensures complete filling
- Enhances the bonding strength between the foam and various substrates
3. Process advantages
- Suitable for high-solid content formulation systems
- Compatible with a variety of blowing agents (HFC, HFO, water, etc.)
- Reduces common amine odors and improves the construction environment
Catalyst system selection strategy
In the production of spray foam, the selection of catalysts needs to consider the following key factors:
1. Climate conditions: the impact of temperature and humidity on the reaction
2. Substrate characteristics: bonding requirements for different substrates such as metal, wood, concrete, etc.
3. Construction process: differences between manual spraying and mechanical continuous production
4. Performance indicators: specific requirements such as thermal conductivity, closed porosity, and fire rating
MXC-BDMA can be used in combination with organic metal catalysts (such as stannous octoate) to further optimize reaction kinetics through synergistic effects. The technical solutions we recommend include:
- Building exterior wall insulation: MXC-BDMA is the main catalyst system to ensure rapid curing
- Cold storage insulation: composite catalyst system to improve closed-cell rate and dimensional stability
- Industrial pipeline insulation: special formula to adapt to complex curved surface construction
Professional technical support and services
We provide comprehensive technical support for spray foam manufacturers and construction companies:
- Formula development: optimize the catalyst system according to your equipment parameters and product requirements
- Process guidance: provide key parameter suggestions such as temperature and pressure
- Quality control: assist in establishing a complete performance testing system
- On-site support: technical personnel guide production commissioning and problem solving
Get product information
For detailed technical information on MXC-BDMA catalyst or to apply for sample testing, please contact our technical team through the following methods:
Email: info@mingxuchem.com
Website: www.mingxuchem.com
Choose a professional catalyst solution to make your spray foam products stand out in terms of thermal insulation performance, construction efficiency and quality stability!
Post time: May-09-2025