With the monomers of resorcinol and formaldehyde as precursor, mixing polyethylene glycol in the precursor, PEG-RF carbon with 710 m~2/g in specific surface and 2.8 nm in average pore diameter was synthesized by polymer blend method.
The nitride catalyst of NiWN_x/γ-Al_2O_3 was synthesized by impregnation and blend method and nitrided with N_2-H_2 mixture in process of temperature programmed reduction.
During the 14 h HDN reaction the NiWN_x/γ-Al_2O_3 prepared by impregnation showed the high and stable activity and was a kind of useful catalyst with potential value in industry, while the denitrification percent of NiWN_x/γ-Al_2O_3 prepared by blend method was reduced after 6 h reaction.
On the basis of research in SUMT method,this paper explicits construction ways of penalization function,factor about barrier function method,penalization function method and blend method.
Methods An emulsion blend method was developed to prepare the composite of PDLLA/HA/DBM based on the weight rate of PDLLA∶HA∶DBM=1.5 2∶1 1.5∶1. The characteristics of the particles was observed by scanning electron microscope. In vitro, PDLLA/HA/DBM and PDLLA were put into PBS(pH7.4) respectively;
方法 按重量比 PDL L A∶ HA∶ DBM=1.5～ 2∶ 1～ 1.5∶ 1,应用乳液共混法 ,制备 PDL L A/ HA/ DBM生物复合材料 ,通过体外降解实验 ,观察其在磷酸盐缓冲液 (PBS,p H 7.4 )中重量、生物力学及 p H值的动态变化。
It also prepared the nano-CaCO_3/POE-g-GMA/PA66 composites by means of melting blend method, and studied the mechanical properties of the system. The results showed that nano-CaCO_3 and POE-g-GMA have some toughening effect on PA66.
Methods An emulsion blend method was employed to prepare the composite of poly-D-L-lactic acid (PDL-LA), hydroxyapatite (HA) and decalcified bone matrix (DBM), called PDLLA/HA/DBM. PDLLA/HA/DBM and PDLLA were respectively used for the repair of rabbit radius defect, while rabbits with only bone defect were used as the blank control.
When proper composition of casting solution were selected,the micro-porous membrane with pore diameter 0.2～1.0 μm and porosity >90% can be obtained,and porosity of PVDF/PS blends membrane was more than that of PVDF membrane,so it is a good method to improve pore size and porosity of PVDF membrane with blend method.
The method for making blends of low density polyethylene (LDPE) and isotactic polyprolene (IPP) films has been introduced in this articte. Blends of LDPE and IPP have been studied by Small Angle Laser Scattering (SALS) , Depolaried Light Intensity (DLI) , Infrared Ray Spectroscopy (IRS) and other technigues. The non-homogeneous phase system of micro split phase for blends is determined as well as complex structure and states are obtained, It has been found thai crystallinities of two...
Four antistatic agents were synthesized by phase transfer catalysis in this paper. On the basis of HDPE, antistatic composites were obtained by using, blend method, which comprised of antistatic agents A, B, C and D, respectively. The surface resistivity of composites was measured, and the relationship between antistatic activity and molecule structure were studied. In addition, the factors which influence antistatic results were studied.
Microcomposites of a rigid rod-like poly (p-hydroxy benzoic add ) (PHB) anda poly (butylene terephthalate) -- poly (tetramethylene glycol ) multiblock copolymer (PBT-- PTMG) were synthesize by in-- situ direct polycondensation. The effectof PHB contents and the concentrations of matrix polymer solution on themorphology and mechanical properties of the microcomposites obtained have been studied. The microcomposites prepared by in-- situ polycondensation exhibit much better uniform morphology and meChanical p...
blend method
混合法
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