Based on the analysis of geological mining condition in Liyan Mine,those properties of coal and rock pillar for safety are studied,including chemistry component,its water-proof capability and lithology and mechanic characteristics.

PV lifetime is greatly influenced by the Water Vapor barrier property of PV backing materials and the sealants.

Based on the geological and hydrogeologic data of Liuqiao First Coal Mine as well as analysis forecasting the driving of headings across Liuqiao Fault and water-resisting ability of the zone of faults,this article draws the conclusion that it is safe in the process of the-380 crosscut across the fault.

Study on damping property of SIS/hydrocarbon resin blend at high temperature;

Effect of reactive diluent on damping property of epoxy resin;

Microstructure and damping property of fiber/resin/aluminum alloy laminated composite;

Introducing the plasma polymerization with GMA(glycidyl methacrylate) used as a single layer,the GMA was polymerized on the surface of SiOx layers to modify the fragility so as to improve the barrier property and flexibility of SiOx thin films.

The aggregation structure of γ-HDPE/PA-6 blends and the relationships between the blend structure and its barrier property have been studied by SEM, DSC and TGA.

The intumescent flame retardant modification of PP composite was made by filling with ammonium polyphosphate(APP) and Deflam.

The testing principle,techno-characteristics and structure design of the flame retardant tester for medical mask was introduced.

The effect of the primary flame retardant magnesium hydroxide [Mg(OH)_2] combined with decabromo diphenylethane(DBDPE)/antimonous oxide(Sb_2O_3)/ingredient A——a polymerized organo-silicone on the properties of EPDM/PP TPV was investigated.