Principle |
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The polymer is collagen, a protein that forms a matrix type structure, allowing the gelatin to hold its shape.
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The fragrance oil particles are suspended in the matrix of the gel which keeps the scent trapped inside.
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As the gel evaporates, the scent particles are released from the matrix, causing a continuous scent to be released from the air freshener.
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The scent particles diffuse with the air particles and the scent of the air freshener spreads in the air.
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Materials |
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- Unflavoured gelatin
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- Fragrance oil
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- Food colouring
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- Table salt
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- Small jars
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- Water
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Procedure |
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Boil one cup of water and stir in four packages of gelatin until dissolved. Remove from heat and add in one cup of cold water.
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Add about 10 to 20 drops of the fragrance oil to the gelatin. If you would like, add a few drops of food colouring as well.
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Add one tablespoon of salt to the gelatin mixture to keep mold from growing.
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Carefully pour the gel into the small jars. Allow the gel to set either at room temperature or in the refrigerator.
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Set them around your home and smell the fragrance coming from them.
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Observation |
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Gel air fresheners are able to scent the air for a long time because gelatin is a polymer.
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