The certification was conducted by the cooperation of 6 laboratories, the certification method is GB/T 3682 -2000. The homogeneity and stability of the certified reference material of polyethylene melt flow rate developed by polymer blend technique are good, the result of the certified value is accurate and reliable.
The certification was conducted by the cooperation of 6 laboratories, the certification method is GB/T 3682 -2000. The homogeneity and stability of the certified reference material of polyethylene melt flow rate developed by polymer blend technique are good, the result of the certified value is accurate and reliable.
In the investigation of porous hydrophilic acrylic fibres by polymer blend technique, a smallamount of acrylonitrile-styrene copolymer (AS), was used to blend with polyacrylonitrile (PAN).
In the investigation of porous hydrophilic acrylic fibres by polymer blend technique, a smallamount of acrylonitrile-styrene copolymer (AS), was used to blend with polyacrylonitrile (PAN).By means of the equations proposed by Harwood, the sequence distribution parameters of AS copo-lymers was calculated according to the CN infrared stretching frequencies of AS copolymers. It wasshowed that the microporous structure of PAN/AS blend fibres is closely related to the sequencedistri...
The developing process of the certified reference material of polyethylene melt flow rate was introduced. The certified reference material of melt flow rate was prepared by polymer blend technique. The certification was conducted by the cooperation of 6 laboratories, the certification method is GB/T 3682 -2000. The homogeneity and stability of the certified reference material of polyethylene melt flow rate developed by polymer blend technique are good, the result of the c...
The polymer blend technique was proposed as a method for designing porous carbon materials used as electrodes in electric double - layer capacitance (EDLC). Phenol - formaldehyde (PF) resin and polyvinyl butyral(PVB) were used as carbon precursor polymer(CPP)and thermally decomposable polymer (TDP),which were with and without carbon residue after heating under an inert atmosphere,respectively. The pyrolytic behaviors of sigle PF resin and sigle PVB and PF/PVB blends in co...