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 Wysłany: Nie 4:06, 08 Maj 2011 Temat postu: Tory Burch shoes Composite materials instead of wo |
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Composite materials instead of wood packaging
New environmentally friendly alternative to wood packaging material is imperative. According to the use of wood and glass features, the use of composite materials instead of wood is the main research directions. 1. Characteristics of composite materials composite main features are: light weight, high strength - the relative density of between 1 to 1.5, only the carbon one-fifth of the six, while the tensile strength close to steel, even more than Carbon steel, mechanical strength to meet or exceed the level of ordinary carbon steel, alloy steel, high specific strength compared with. Corrosion resistance, one by one there are no ions in the electrolyte solution, precipitation, atmospheric, water, acid, alkali, salt, and a variety of oils and solvents have good resistance, high chemical stability. Good electrical properties - is an excellent insulating material, can still maintain a good high-frequency dielectric properties. Good thermal properties - low thermal conductivity at room temperature is 1.25 ~ 1.67Kj / (M.H.K), only one percent to one-thousandth of metal, is an excellent insulation material. In the case of instantaneous ultra high temperature,[link widoczny dla zalogowanych], is the ideal and the ablative thermal protection materials. Process of the fine one by one by hand, spray, pressure molding, electron beam curing molding process can be achieved at room temperature or cold forming, energy conservation, curing speed, short cycle times, enabling continuous automated operation. Can be designed and good - as needed, select the material composition, the flexibility to design a variety of structured products. 2. Classification of composite materials and composite materials, many categories, according to chemical composition of organic composite materials can be inorganic materials, the main products of organic fiber resin composite materials reinforced material (such as: FRP); inorganic magnesium oxychloride composite materials reinforced material, WPC materials, composite laminate materials. Organic composite materials include phenolic resin, epoxy resin, unsaturated polyester resin and glass fiber, carbon fiber composite made of thermosetting. High strength, lightweight quality ether song, good chemical stability, high timber prices, but lower than the steel can be reused dozens of times over (as stipulated in the steel pallet l2 times scrapped), materials to facilitate repair and maintenance costs low, can replace the steel pallet packaging glass. Inorganic composite materials based on inorganic materials as the binder and reinforcing fiber composite made of. Organic composite materials with similar properties. Composite laminate materials,[link widoczny dla zalogowanych], wood plastic material, magnesium oxychloride inorganic composite materials reinforced material is a typical product, compared with glass fiber reinforced polyester has the following advantages: 1) the strength and density of artifacts similar to polyester FRP; 2) heat , fire, flame, in 3000 (2 under the conditions of long-term use; 3) light aging better than polyester FRP; 4), no bad gas production; 5) low cost, as 50% glass fiber reinforced polyester. Compared with other inorganic composite materials: 1) high strength, flexural strength of 120 ~ 170MPa, higher than the other inorganic composite materials more than 3 times; 2) low density, only 90% of other materials; 3) high water; 4 ) resilient, planing sawing. Composite laminate materials, wood plastic material, magnesium oxychloride reinforcements to replace the original wood as packaging material,[link widoczny dla zalogowanych], in theory, is feasible. 3. Key points and significance of composite laminate materials, wood plastic material, magnesium oxychloride as a reinforcing material to replace wood packaging materials, to solve the key technical, technological problems: First, to solve adaptive problems binder and reinforcing material; II is reasonable to determine the composition, both the performance required to meet the packaging, timber off than low prices; third is the preparation of their production process design,[link widoczny dla zalogowanych], production equipment and operation of technical regulations. Organic composite materials instead of pallet recycling, inorganic composite materials (composite laminate materials, wood plastic material, magnesium oxychloride reinforcement) to replace the glass timber used for packaging, will save the country a year after the implementation of a large number of timber, also reduce the cost of glass packaging, while the composite laminate materials, wood plastic materials, high temperature,[link widoczny dla zalogowanych], high pressure treatment, there is no insect pests and their sockets, the export does not require disinfection treatment to meet the export requirements. Currently, the ongoing composite laminate CLFG composite box testing, application of good.
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