DuraTherm Overview
DuraTherm uses long fibers to augment ice. This results in a reliable thermal function where we can adjust the temperature the ice is emitting.
Instead of behaving like normal ice, the fiber-augmented structure changes the melt behavior and allows different samples to sustain different temperature ranges.
Why is this a breakthrough?
Well, it is because ice and the water coming from it never heats up more than 32°F degrees (0°C).
But do not take my word for it; here is a website that identifies this in an easy to understand format. If that one was too easy, here is a math heavy website identifying why.
The only viable solutions, until now, have been to use towels and rags to coat the ice, or to purchase expensive Phase Change Material packs. Gel packs often are at the same temperature as ice packs.
Frostbite usually takes a while, but other complications from ice being at 32°F can happen, including that it could increase swelling and not reduce it.
More so, if the patient must be kept under ice longer than a normal ice or gel pack would allow, a nurse must enter to replace the pack.
There is another way, but the machines often cost thousands of dollars and need to be properly maintained. They are often bulky and difficult to operate, requiring specialized training.
My DuraTherm fiber ice is a very low cost alternative that can be sent home with patients with minimal instructions.
Performance Analysis
Two tests have been conducted. The first identified the "sweet spot" for fiber ratios, while the second—fully video-documented—compared specific fiber types in enclosed trays.
Fiber: Toilet Paper (Shredded)
| Time | Temperature |
|---|---|
| 4:15 PM | 32.00°F |
| 4:45 PM | 32.00°F |
| 5:00 PM | 33.00°F |
| 5:20 PM | 35.00°F |
| 5:40 PM | 36.00°F |
| 6:00 PM | 37.50°F |
| 6:20 PM | 38.00°F |
| 6:40 PM | 44.00°F |
| 7:00 PM | 44.75°F |
| 7:20 PM | 43.00°F |
| 7:40 PM | 42.25°F |
| 8:20 PM | 47.25°F |
Fiber: Cotton Balls (Shredded)
| Time | Temperature |
|---|---|
| 4:15 PM | 32.00°F |
| 4:45 PM | 32.00°F |
| 5:00 PM | 34.00°F |
| 5:20 PM | 37.00°F |
| 5:40 PM | 39.00°F |
| 6:00 PM | 39.00°F |
| 6:20 PM | 39.25°F |
| 6:40 PM | 43.00°F |
| 7:00 PM | 43.00°F |
| 7:20 PM | 44.25°F |
| 7:40 PM | 42.50°F |
| 8:20 PM | 47.50°F |
Feel Free to Replicate the Test
For the test I merely hand shredded toilet paper. Toilet paper has wood materials in the form of long fiber strands placed together in a larger structure.
Any long form fiber platform should work, including cotton balls, recycled newspaper, toilet paper, or other forms of long fiber. Not all fiber is the same. Toilet Paper will be less useful than cotton, the longer the fiber, the better the results.
Facts of Test 1
- Seven real cubes used, 1 extra was regular ice as a control.
- Units 1 and 2, with 2.9% and 5.8% fiber, performed similar to ice but eroded under 3 hours similar to the regular ice.
- Unit 3, with 8.7% fiber by volume, sustained a persistent temperature range of 32–35°F.
- Unit 4, with 11.6% fiber, was found to have not been stirred appropriately and ended early.
- Unit 5 sustained 34–39.6°F, a wider range attributed to some areas having more fiber on the outside than was normal.
- Unit 6 sustained 33.4–36.7°F and was the tightest range.
- Unit 7 was the control ice cube. It started losing shape even at the first hour check.
- Unit 8 tested 29.1% fiber by volume as a high-end test and sustained 36–40°F the whole time, even after it had fully melted at 5 hours, 12 minutes.
- Fiber can be controlled to some extent due to the nature of the source.
- Inside a container the temperature range will be more balanced due to thermal balancing.
Facts of Test 2
- Two Trays were used.
- Tray 1 had toilet paper as the fiber source, Tray 2 had shredded cotton balls as the fiber source.
- The two trays followed the same basic thermal process, remaining within +/- 3°F from each other the whole time.
- Tray 1 had a cell that accidentally got crushed upwards while freezing, later it restored its form and kept remaining cool as appropriate.
- The highest obtained temperature was 50°F
- I cut the experiment short at 4 hours, 10 minutes into the process. I removed the covers, and filmed the size of the remaining ice.
- Both units remained in the freezing range for up to 45 minutes, the rest of the process they were above 32°F
- There were two identifiable ranges, one in the 34-39°F range, and one in the 43-47.5°F range, where control is probable based upon the models.
- All interactions with the trays was filmed, the test was on a rack open to the air, it was approximately 70°F in the room.
- Speculation: Due to the slow melt and higher thermal setting, DuraTherm could survive in a 35°F fridge for days or weeks before usage, after an initial freeze cycle.
Business Plan
Phone: +1 (971)533-3116
A business plan has been made, it is available to those who are interested in investing.
Additionally a Pitch Deck and a One Pager are available on the same basis.
Top level notes:
$3M to $6M ask, production estimate is 500,000 units a month.
Estimated cost of production & logistics: $1 with a target $4 cost factor.
Ice-Burn-Free, 34°F-50°F operational range.
New regulations create a must-buy market.
Video of Test #2
This is the full video of the second test. Test used two trays, one with 29% toilet paper and one with 29% cotton, both by volume. These are approximate values.
This video demonstrates that DuraTherm is a viable replacement for medical ice packs in all medical settings.
External Link if needed: Direct Video File
DuraTherm Video Library
Many videos exist about Pykrete. This is not a new and novel concept, nor is it hidden in the dust bins. The only new and novel application is using it for medical purposes. Explore the many videos about Pykrete, including the Myth Busters episode on Pykrete. It was in front of their eyes the whole time, so many people have used Pykrete and none of them considered the medical applications of Pykrete. DuraTherm is not starting out as a new concept, it is based on a well known, well developed, well researched concept. Investors can rest easy that this is a known process.
Additional Platforms
Facebook Presentation Asset: Watch on Facebook