Most of room-temperature curing agents used for epoxy resins are aliphatic polyamines or modified amines. These products have large toxicity, deep color, strong irritation to human skin, large heat release from curing, short life cycle, and high internal stress in cured products. The poor thermal shock resistance and easy cracking of the resin after curing make the application limited. Yangzhou Chenhua Group has developed a new type of epoxy resin curing agent, an amino terminated polyoxypropylene ether (abbreviated as amino polyether). After trials, its performance is comparable to that of the US Texaco/Huntsman company JEFFAMINE. Its main specifications are: Tri-functional T-series and Di-functional D-series, specific grades are: T-5000, T-3000, T-403, D-400, D-2000, D-230 and so on.
Experts said that amino-polyethers are light yellow or colorless transparent liquids at room temperature. They have the advantages of low viscosity, low vapor pressure, and high content of primary amines. They can be dissolved in ethanol, aliphatic hydrocarbons, aromatic hydrocarbons, esters, and B. In glycol ethers, ketones, and water. According to reports, the use of amino polyether cured epoxy resin has a relatively long construction period, a lower exothermic temperature peak, can be a colorless transparent high-gloss material, can improve the state of the coating surface, very suitable for casting and Potting application. It has been proved that epoxy resins cured with D-230 and T-403 are very tough, heat-resistant, and can be used in combination with high-mass T-5000 and D-2000 to improve the flexibility of epoxy resins. At the same time, the amino polyether cured product has good alkali resistance, water resistance, and moderate acid resistance, so the epoxy resin cured using the amino polyether has good electrical properties.
Aminopolyethers have unique properties and cover almost all epoxy applications such as coatings, potting materials, construction materials, composites and adhesives. Compared with other amine curing agents, amino polyethers have low viscosity, light color, good compatibility with many organic substances, moderate reactivity, and can meet special application requirements.
Overbed/laptop table is the most versatile, feature-packed table available today. Hollin earned its name due to its extreme versatility and high level of functionality. The rugged, institutional quality design and construction combined with the most-desired user features makes the Hollin is perfect fit for home and institutional healthcare use as well as an ideal Laptop Cart for home or office. Hollin can integrate with more bed/chair shapes and sizes than any other overbed table on the market. The split top design allows the user to tilt the main table surface in either direction for easier book/tablet reading while a smaller fixed surface remains horizontal to accommodate. pen/paper/drinks/food/mousepad and mouse etc. An integrated lip prevents items placed on the tilted surface from sliding off. Hollin table can be easily and conveniently stored in a very small area. The storage mode also makes the easy to transport if required.
Overbed Table,Laptop Lap Desk,Bed Laptop Desk,Ikea Laptop Desk,Over Bed Table
Foshan Hollin Furniture Co.,Ltd , https://www.foshanhollin.com