Cast nylon modified with laurolactam was prepared by activated anionic copolymerization under the adiabatic condition.Its mechanical properties were studied.
Materials for sling: terylen tape, nylon tape, elastomer thread, PVC tape, etc, having processes of noctilucence, fluorescence, repercussion, jacquard weaving by computer, etc.
Decomposition of mixed foliar litters from the four typical plantitions in upper reaches the of the Minjiang River was studied by using the litterbag method.