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  2. Hydrogel agriculture - Wikipedia

    en.wikipedia.org/wiki/Hydrogel_agriculture

    Hydrogel agriculture technology uses insoluble gel-forming polymers to improve the water-holding properties of different soils, such as clays and sandy loams. This can increase water-holding and water use (up to 85% for sand), improve soil permeability, reduce the need for irrigation, reduce compaction, soil erosion , and leaching, and improve ...

  3. Polyhydroxyethylmethacrylate - Wikipedia

    en.wikipedia.org/wiki/Polyhydroxyethylmethacrylate

    Poly(2-hydroxyethyl methacrylate) (pHEMA) is a polymer that forms a hydrogel in water. Poly (hydroxyethyl methacrylate) (PHEMA) hydrogel for intraocular lens (IOL) materials was synthesized by solution polymerization using 2-hydroxyethyl methacrylate as raw material, ammonium persulfate and sodium pyrosulfite (APS/SMBS) as catalyst, and triethyleneglycol dimethacrylate (TEGDMA) as cross ...

  4. Hydrogel - Wikipedia

    en.wikipedia.org/wiki/Hydrogel

    Gelatin, here in sheets for cooking, is a hydrogel. Peptide hydrogel formation shown by the inverted vial method. A hydrogel is a biphasic material, a mixture of porous and permeable solids and at least 10% of water or other interstitial fluid.

  5. Nanocomposite hydrogels - Wikipedia

    en.wikipedia.org/wiki/Nanocomposite_hydrogels

    Hysteresis is used to measure the compression properties of nanocomposite hydrogels, which shows that this material can withstand around 90% compression. This data shows that nanocomposite hydrogels exhibit superior strength relative to conventionally-made hydrogels, which would have broken down under less compression.

  6. Hydrogel fiber - Wikipedia

    en.wikipedia.org/wiki/Hydrogel_Fiber

    Hydrogel fiber is a hydrogel made into a fibrous state, where its width is significantly smaller than its length. The hydrogel's specific surface area at fibrous form is larger than that of the bulk hydrogel, and its mechanical properties also changed accordingly. As a result of these changes, hydrogel fiber has a faster matter exchange rate ...

  7. Havelock City - Wikipedia

    en.wikipedia.org/wiki/Havelock_City

    Havelock City is developed and managed by Mireka Capital Land (Pvt) Ltd, a fully own subsidiary of Overseas Realty (Ceylon) PLC. [9] The project is being built on a single 7 ha (18-acre) site, once the premises of the Wellawatta Spinning and Weaving Mills. Prior to construction commencing, the land was the largest cleared land in Colombo. [11]

  8. Silicone hydrogel - Wikipedia

    en.wikipedia.org/?title=Silicone_hydrogel&...

    This page was last edited on 8 September 2019, at 23:48 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.

  9. Agriculture in Sri Lanka - Wikipedia

    en.wikipedia.org/wiki/Agriculture_in_Sri_Lanka

    In 2015 alone, Sri Lanka’s spice exports amounted to USD 377 million, up from USD 264 million the previous year. Sri Lanka’s most famous export, cinnamon is the island’s premier spice export. Industry insiders classify the spice into two forms, Ceylon cinnamon (Cinnamomum Zeylanicum), and Cassia Cinnamon. Ceylon cinnamon is the costlier ...