时间2017-09-29 15:09:00        来源:玖思利
   EPP material can be used as an insulating and soundproof building material for construction industry.
Because of foamed PP low thermal conductivity, low water vapor permeability and high energy absorption, the performance and its compressibility, together to make it suitable for the space is not flat surface, such as: as a roof, wall, concrete slab, highway of expansion joint filler, sealant keep, sealing strip.
   PP foamed sheet can promote solidification of concrete by reducing the loss of heat and moisture.
   With its low thermal conductivity, PP foam can be used for building roofing material.
   PP foam liners can reduce the sound propagation of multi-storey buildings.
   In recent years, the household industry in order to reduce the cost of raw materials, the better properties, such as hardness and strength, to use wood plastic reinforced PP foam material produced great interest, and has carried on the detailed studies.Like: Andrzej K et al.
   251 was studied by chemical foaming agent for PP wood fiber composites molding foam foaming behavior in the process of study, the results show that the foaming agent and the types of wood fiber reinforcement effect of foam density, physical and mechanical properties, surface roughness and bubble hole shape, hard wood fiber/PP composites with exothermicity foam blowing agent for round bubble pore structure, can lose weight by 30%, density drop to 0.7419.
   In addition, the tensile strength and bending performance are 80% higher than that of the foaming process, which indicates that the foaming materials of the PP are of good use and economic effect.