New Invention Profile
| Publication No: | IN202311059078 [India] | Application No: | IN202311059078 |
| Title: | LINEARLY ACTUATED SHAPE MEMORY POLYMER COMPOSITE REINFORCED WITH MAX FILLER FOR ENHANCED HEAT AND FIRE DETECTION | ||
| Publication Date: | 07-03-2025 | File Date: | 01-09-2023 |
| Inventor(s): | Neeraj Dwivedi; Shubham Jaiswal; Chetna Dhand; Avanish Kumar Srivastava | ||
| IPC Classification: | G08B 17/10, G08B 17/06, A61B 17/00, G08B 17/00, C08K 3/32 | ||
| Abstract: | Fire accidents resulting in fatalities and property losses are a major concern worldwide. Traditional fire alarm systems based on smoke and infrared heat detectors display delayed fire warnings and are susceptible to outside intervention. The present invention provides a fire alarm device with a temperature-sensitive element made of shape memory polyurethane reinforced with MAX filler. When exposed to a threshold temperature, typically its glass transition temperature (~57o C), the element returns to its original shape and retains it even after subsequent cooling, triggering a self-holding alarm signal by closing the electrodes. The fire alarm can be reset mechanically by stretching the element or by using two-way shape memory polymers through reheating to a lower temperature threshold. Suitable shape memory polymers include pristine shape memory polyurethane and shape memory polyurethane-Ti3AlC2 MAX phase materials composite. |
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:https://ampri.res.in
Industrial Applications
Analysis [Instrumentation, Appliances, Devices]
Composites [Materials]
Polymers [Materials]