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Biodegredable Floral Foam
Our Role
We redefined fast-casual loyalty
Today’s Task
What We did Today?
Event: Evaluate characteristics and performance of the formulation.
Today’s task is to optimize the formulation of biodegradable floral foam in cosmetics complaint with ISO standards. The systematic investigation of the critical ingredient selection and composition factors was performed through studying the impact of fiber hydration levels, biodegradable binder content, and porosity enhancing additives on functional properties of foam. Various formulation combinations were prepared and evaluated based on their ability to absorb water, retain water, and provide support and stem holding.
How I Felt Before Starting: Developing and optimizing the processing method of biodegradable foam
My focus in conducting this experiment was to carefully balance the absorption and structure integrity of the biodegradable foam. It has been observed during the initial research that more water retention or absorption could reduce the strength and stem holding capacity of the foam. Since natural fibers behave differently than the synthetic materials often encountered, it is difficult to predict during initial stage how different hydration levels could contribute to overall performance. Concerns about waterlogging, structural collapse and durability were paramount. Nevertheless, I felt confident that by carefully formulating and testing each composition systematically could help foam to effectively get hydrated and remained structurally sufficient for floristry applications could be developed.
🧪What We Did Today?
The focus of today was on the hydration and water handling properties of biodegradable floral foam formulations.
Product Development Plan: The experiment was divided into three Objectives:
- Objective 1: Materials cum Fiber Hydration and Optimization
- Objective 2: Characterization of functional properties.
- Objective 3: Results evaluation and optimization
Key Steps Followed During Product Development
- In the first stage of this investigation, appropriate natural fibers were selected. Five biodegradable foam formulations (F1–F5) were developed using different fibre–water–binder ratios. The formulations were as follows: F1 (1: 3.3: 0.5), F2 (1 : 4.0: 0.5), F3 (1 : 5.3 : 0.4), F4 (1 : 3.8: 0.5), and F5 (1 : 3.0 : 0.6). The prepared mixtures were maintained under controlled hydration conditions for a specified period before further processing.
- The fibers were washed (25 to 32οC) and sieved to facilitate absorption and uniform wetting for fixed duration in range of 30 to 60 minutes.
- These mixtures were homogenized using mechanical stirrer at approximately 300-500 rpm for appropriate duration and after homogenous mixing of fibers, binders and porosity enhancing components these were molded into definite shape.
- Samples were then oven dried at 50-70 οC for 24 hours.
- The second phase involved the testing of the functional behavior of the produced floral foam formulations.
- A variety of tests measuring physical characteristics and hydration were carried out.
- Water absorption ability was assessed by submerging the dried foam samples into distilled water at 25 to 32°C and taking measurements of weight increase over a specified time period.
- In a hydration rate test, a graph of weight increase against time was plotted to measure the time taken for the hydration process to reach a constant value, thereby allowing interpretation of pore size and the flow rate of water.
- Moisture loss was tested for by leaving hydrated samples for 24–48 hours in a laboratory, to determine the water retention capability of the formulation.
- Structural integrity was tested on a post-hydrated sample; a visual analysis was made of the shape of the foam and compression resistance measurements were taken, to assess its structural stability.
- The values collected from these tests also supplied information regarding composition to behaviour relationship.
- In this last phase, obtained results from the experiments are analysed to identify which has better performance and characteristics.
- Data from various samples was compared and determined, an optimal condition for hydration.
- Delivering a safe, compliant product, aligned with ISO standards of Biodegradability testing.
📚 What I Learned?
Observations & Learnings
It was clear from examining the 5 formulas, that water uptake enhanced absorptivity of the biodegradable floral foam, although not necessarily in terms of better function. F3 had high water uptake (310%), fast water absorptivity (8 min) suggesting high porosity but had a lower structural stability score (6), indicating that high water uptake is likely at the cost of mechanical stability. The most promising all-rounder, balancing hydration and function was F4, with 295% water uptake, highest retention after 24 h (85%), and good structural stability (8). The most structurally stable foam (9) was F5, indicating good foam matrix density, although water uptake was low. It was concluded that high water absorption alone does not provide good function but that the balance between the variables, uptake, retention and structural stability, should be considered carefully. Therefore, F4 offers the most optimal blend of parameters to effectively transport water to a floral stem.
Outcomes
Formulation | Water Uptake (%) | Absorption Rate (min) | Water Retention After 24 hrs (%) | Structural Stability Score (1-10) |
F1 | 240 | 12 | 68 | 8 |
F2 | 280 | 10 | 75 | 7 |
F3 | 310 | 8 | 81 | 6 |
F4 | 295 | 9 | 85 | 8 |
F5 | 260 | 11 | 72 | 9 |
Interpretation
Out of the 5 formulations tested, F3 had the greatest amount of water uptake (310%) and the greatest rate of uptake (8 min) showing it is a highly porous material capable of accepting a large volume of water quickly, but with the lowest structural stability (score 6). This shows that the foam structure has absorbed an amount of water that is too great. Overall, the performance of F4 was superior showing the highest amount of retained water (85% at 24h) and also receiving a relatively high score for its structural stability (score 8). Another advantageous aspect is the rapid uptake speed (9 min). Structural stability of F5 is fair (9 points) whereas water uptake is low (260%) and retention is rather good (72%). This means the structure is very stable but does not take up as much water. F2 was a good overall compromise for all the parameters. F1 has a lower water uptake (240%) and retention (68%) than most formulations but has good structural stability (score 8). This indicates that F4 is the best formulation in terms of having the greatest retention of water and enough mechanical stability for floral stem placement.
What Went Well
- Systematically varying the fiber–water–binder ratios helped establish a clear relationship between formulation composition and foam performance.
- Evaluating water uptake, retention, and structural stability together enabled identification of the most balanced formulation rather than optimizing a single property.
- Controlled hydration and drying conditions produced uniform foam structures, allowing reliable comparison between formulations.
⚠️ What Could Be Improved
- Different biodegradable binders should be evaluated to increase the mechanical integrity of the foam structure.
- Mechanical tests including compression strength and stem-insertion strength need to be implemented.
- Future studies could incorporate pore morphology analysis to better understand the influence of internal structure on water transport and retention.
- Additional mechanical characterization, such as compression and stem insertion testing, could provide a more comprehensive assessment of practical performance.
- Long-term hydration studies and testing with fresh floral stems could further validate the suitability of the optimized foam under real-use conditions.
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Project Code:24FRL-BEV-NPD 4577-01
Name:Mohammad Hassan
Project Code:24-FRL-FOD-NPD-2462-02
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Project Code: 24-FRL-FOD-NPD-3449-01
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Project Code: 24-FRL-BEV-REV-2878-01
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Name: Harshad
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