INTEREST EXPLORATION NOTE
Benzoxazine Polymer
Indian Space Research Organisation at its Vikram Sarabhai Space Centre has developed Benzoxazine Polymer, a matrix resin suitable for thermal insulations, adhesive formulations and encapsulant in PCB industry.
Polybenzoxazine is a suitable candidate matrix resin for high density ablative composites and also for light weight foam composites in aerospace applications due to excellent thermal and thermo-oxidative stability, high char yield, good chemical inertness, abrasion resistance and flame retardancy. It also finds application as an encapsulant in electronic industry.
Salient features
• Excellent flame retardancy
• Easily processable (solventless process, moderate temperature)
• Good thermal stability
Raw materials |
Bisphenol A, Aniline and Para- Formaldehyde |
Method |
Solventless process |
Reaction temperature: |
120 °C |
Product appearance |
Yellowish orange powder |
Solubility |
Soluble in acetone, chloroform etc |
Curing temperature: |
210 °C/3 hrs |
Polymerization temperature (°C) |
200/ 2 hours |
Thermal stability |
>250 °C. |
Shelf life |
1 year |
Storage |
Ambient temperature, moisture-free environment |
Approximate Production cost |
Rs.1000/kg |
TECHNOLOGY TRANSFER FROM ISRO
ISRO is willing to offer the knowhow of this technology to suitable entrepreneurs /industries in India. Capable manufacturing industries interested in acquiring this knowhow may write with details of their present activities, requirements and plans for implementation, infrastructure and technical expertise available with them, their own market assessment, if any, and plans for diversification to the address given below.
For further details, please contact:
Head
Technology Transfer & Industrial Coordination Division (TT&IC)
Vikram Sarabhai Space Centre, ISRO PO
Thiruvananthapuram-695 022
E mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Ph: 0471-2565133/5695
Fax: 0471-2564134