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GRP(Glass-fiber Reinforced Polyester) is made up of specially optimized polyster. After high speed dispersion of various auxiliaries, reinforced glass fiber and functional fillers are mixed into aggregates by professional kneading machine, and then high temperature and high pressure molding is carried out by hydraulic press.
GPPS plastics are universal grade polystyrene (GPPS), polystyrene (PS) is made of styrene monomer (SM) polymerization, which can be synthesized by a variety of synthesis methods. At present, bulk polymerization and suspension polymerization are mainly used in industry.
The insulation plate is placed on the support, and then the load head is applied to the specimen of the insulation plate made on the two supports at a certain speed. The load should be applied perpendicular to the sample at the center of the two support points, and the load value or fracture load value of the sample when the specimen reaches the specified deformation is recorded.
It is considered that the smaller the bending deformation of the plate is, the better it is, which refers to the size deformation rate of the wall on the plate after aging. The index specified in gb/t29906-2013 "thin plastering exterior wall insulation system of molded polystyrene board" is ≤ 0.3%. The smaller the index is, the better.
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