EPP production technology
Introduction of EPPEPP （Expanded polypropylene ）：Polypropylene plastic foam material, industrial use of polypropylene plastic foam material (EPP), composed of solid and gas two phases, black, pink or white granular, diameter size generally in between φ2～7 mm. The outer walls of the EPP particles are closed and filled with gas. In general, its solid phase composition accounts for only 2% ~ 10% of the total weight, the rest is gas. The foaming material has the following characteristics:
1，Its density is generally 17 ~ 100 kg/m3. Customers can choose different density of pre-foam raw materials according to the needs of different mold products;
2，Heat resistance ability, usually temperature affordable - 40℃~110℃, even more affordable temperature range in a short time;
3，Good buffering performance, even in the case of not thick cushion can play a good buffering.
Applications1,Packaging industry (such as: computer, medical instruments, precision instruments, audio-visual materials, cameras, liquid crystal glass, ceramics, handicrafts, all kinds of household appliances, shockproof buffer packaging, to avoid damage and damage in the process of transport)
2,Automotive industry (such as: car bumper, car side shockproof core, car door shockproof core, advanced safety car seat, toolbox, trunk, armrest, bottom pad, sunshade, instrument panel, etc. According to the statistical data, at present, the average plastic used in each vehicle is 100~130kg, among which about 4~6kg EPP plastic is used.
3,Electronic industry structure parts (such as: refrigerator air conditioner lining, solar water heater upper and lower tail support, communication equipment lining board, etc.)
4,Logistics and transportation industry (e.g., EPP protective spacer, EPP pallet, EPP pallet, EPP turnover box, etc.)
5,Toy models and sporting goods (e.g. models of toy, plane, boat; sports helmet, surfboard, float, sports mat)
6,Construction industry (it can be used as building materials with good thermal insulation and sound insulation effect. Due to the low heat conductivity, low water vapor permeability, high energy absorption and compressibility of EPP material, it is suitable for filling the gap of uneven surface, such as: the filler, sealant retentive material and sealing strip in roof, wall, concrete slab and highway expansion joints. EPP foam board can promote the solidification of concrete by reducing the loss of heat and moisture. Using its low heat conductivity, EPP foam can be used as a roofing pad material for common buildings, through which sound transmission in multistory buildings can be reduced.
TechnologyThe EPP plate technology has been fully mature, It is better than EPP bubble bead mechanical performance, can be applied to the car roof, and the plate has been applied to Ikea in the process of transport packaging, manufacturing process of supercritical carbon dioxide foam, have obvious advantages than traditional paraffin foaming technology represented by the JSP (Japan) : low cost, environmental protection, no waste gas.
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