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Gel

A gel (from the Latin gelu "freezing, cold, ice" or gelatus "frozen, immobile") is a colloidal system in which a porous network of interconnected nanoparticles spans the volume of a liquid medium. In general, gels are apparently solid, jelly-like materials. more...

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Both by weight and volume, gels are mostly liquid in composition and thus exhibit densities similar to liquids, however have the structural coherence of a solid. An example of a common gel is edible gelatin.

Many gels display thixotropy - they become fluid when agitated, but resolidify when resting.

By replacing the liquid with gas it is possible to prepare aerogels, materials with exceptional properties including very low density, high specific surface areas, and excellent thermal insulation properties.

In 2005 a sound induced gelation effect was demonstrated.

Applications

Many substances can form gels when a suitable thickener or gelling agent is added to their formula. This approach is common in manufacture of wide range of products, from foods to paints, adhesives.

In fiber optics communications, a soft gel resembling "hair gel" in viscosity is used to fill the plastic tubes containing the fibers. The main purpose of the gel is to prevent water intrusion if the buffer tube is breached, but the gel also buffers the fibers against mechanical damage when the tube is bent around corners during installation, or flexed. Additionally, the gel acts as a processing aid when the cable is being constructed, keeping the fibers central whist the tube material is extruded around it.

Gels are an important part of chemistry, and can be used to form solids.

The classification of gels and jellies: Gels can be loosely classified along the following lines:

1 - Either inorganic or organic in nature

2 - Having water (hydrogels), or an organic solvent (organogels) as the liquid component

3 - Being either colloidal or coarse in nature (size of the particles which form the framework)

4 - As a rigid gels, elastic jellies, and gels

Read more at Wikipedia.org


Stemware Gel Candles Very Decorative & Colorful set/6 $13.99 Scented Gel Candles $30.00
Forbidin passion gel candle (sexual, romantic) $5.00 Champagne toast gel candle $6.50
Champagne flute gel candle with heart stem $7.00 Heart and sole scented gel candle $4.00
leopard print scented gel candle $7.00 Pair of Martini Z Stem Glass Gel Candles Glass Olive $7.77
Fresh Canned Fruit Preserve Gel Candle - Apple Scent $1.99 handmade gel beer candles $10.00
handmade mini coca cola gel candle $5.00 Nip Yankee Candle Macintosh Apple Car Gel Gift Pack $3.99
*W@W* Unused Glass Cube Two Tone Wax & Gel Blue Candle $4.37 Gel Candle Coffee Scented Home Made 22 Oz. Nr $11.95
Gel Candle Hazelnut Scented Coffee Home Made 22 Oz. Nr $11.95 Soy & Gel Multi Wick Candle Scented Home Made 16 Oz. Nr $7.95
Soy & Gel Candle Blackberry Scented Home Made 16 Oz. Nr $4.95 Soy & Gel Jar Candle Peach Scented Home Made 16 Oz. Nr $4.95
Primal Elements Color Bowl Gel Candle, Santa'S Cookies $21.95 Seascape Shell Gel Candle New $2.50
On-The-Rocks Drunk Drunken Glass Gel Candle $5.99 Red Wine Gel Candle Specialty Glassware 8 Ounce $6.99
Yankee Candle Assorted Car Jar / Gel Lot of 20 Scents $29.99 Primal Elements Color Bowl Gel Candle Vanilla Fig 2Wick $16.95
Bath Body Works Orange & Cinnamon Gel & Lotion $24.95 Set of 6 Yellow Scented Floating Gel Candles $3.99
Set of 6 Lavender Scented Floating Gel Candles $3.99 Set of 6 Green Scented Floating Gel Candles $3.99
New Primal Elements Cherry Vanilla 2 Wick Gel Candle $9.99 New Primal Elements Caramel Plantain 2 Wick Gel Candle $9.99
Lot 4 Yankee Candle Juicy Grapefruit Gel Car Freshener $10.95 Lot 4 Yankee Candle Christmas Cookie Gel Car Fresheners $10.95
Lot 4 Yankee Candle Sunwashed Linen Gel Car Fresheners $10.95 Yankee Candle Gel Car Refresher Leather(New) $3.99
Yankee Candle Gel Car Refresher Sage and Citrus $3.99 Primal Elements Tahatian Vanilla Demi-lite gel Candle $6.25
Safari Zebra Tiger Giraffe Gel Candle Last 4ever $0 S/H $19.99 Primal Elements Cherry Vanilla Demi Light Gel Candle $6.25
Yankee Candle Gel Car Refresher Home Sweet Home $3.99 Cherry Pie Scented Jar Candle Fake Food Candles Gel $8.95
Fruit Preserves Gel Candle - Your Choice $4.49 Set Of 4 Yankee Candle Lavender Gel Car Fresheners $10.95
Primal Elements, Almond Biscotti, Demi-light Gel Candle $6.25 4 Scented Candles!One Gel Type,One Multi-Color! $2.99
Cherry Vanilla Cola Gel Candle $9.99 6 oz Peony Scented Gel Candle $5.00
Mini Wine Glass Gel Candles $16.95 Gel Tealight Candles Look!!!!!!!!!! Lot C $1.00
Set Of 4 Pink Heart And Flower Floating Gel Candles New $5.99 Yankee Candle Car Gel Lemon Lavender $3.29
Beautiful Set Of Champagne Gel Candles New! $9.99 Gel Scented Specialty Votive Candles $9.99
Yellow Smile Smiley Face Gel Candle Last Forever $0 S/H $14.99 Primal Elements Color Bowl Gel Candle, Tahitian Vanilla $17.50
Dragonflies Dragonfly Ladybugs Gel Candle Last Forever $11.99 Raspberry Pie Scented Candle Fake Food Pie Candles Gel $8.95
Blueberry Pie Scented Candle Fake Food Candles Gel $8.95 #38539 Mini Wine Glass Gel Candles $9.95
Vanilla, Pecan, Banana or Strawberry Shake Gel Candle $9.99 Gel Fruited Candle $10.99
Texas Barb Wire Sweet Pea 16 oz Clear Gel Candle $14.95 Texas Barb Wire Strawberry Kiwi 16 oz Clear Gel Candle $12.95
Texas Western Barb Wire Stargazer Lily 16 oz Gel Candle $14.95 Texas Barb Wire Mango Papaya 16 oz Clear Gel Candle $14.95
Religious Cross Sweet Pea 16 oz Cclear Gel Candle Gift $12.95 Religious Cross Strawberry Kiwi 16 oz Clear Gel Candle $12.95
Religious Cross Stargazer Lily 16 oz Clear Gel Candle $12.95 Religious Cross Mango Papaya 16 oz Clear Gel Candle $12.95
Religious Cross Cucumber Melon 16 oz Clear Gel Candle $12.95 Hunting Shells Sweet Pea 24 oz Clear Gel Candle $14.95
Hunting Shells Strawberry Kiwi 24 oz Clear Gel Candle $14.95 Hunting Shells Stargazer Lily 24 oz Clear Gel Candle $14.95
Hunting Shells Mango Papaya 24 oz Clear Gel Candle $14.95 Pair of clear gel candles in tall stem glasses - Bnib $1.45
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Prices current as of last update, 01/05/09 11:20pm.


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