42results about How to "The structure is easy to control" patented technology

The invention discloses a CFs@TiC / TiO 2 Composite material and its preparation method and application, said CFs@TiC / TiO 2 The preparation process of composite materials is as follows: (1) carbon fiber (CFs) is used as carbon raw material, and carbon fiber is degummed by Soxhlet extraction method to obtain single dispersed fiber; (2) titanium hydride is used as titanium molten salt method in Porous titanium carbide grown on the surface of carbon fiber; (3) using potassium hydroxide hydrothermal method to partially convert the titanium carbide grown on the surface of carbon fiber into potassium titanate nanosheets; (4) after acid treatment and heat treatment, CFs@TiC / TiO 2 Composite functional materials. The invention has simple process, easy adjustment and control of material structure, excellent performance of the prepared composite material, and is convenient for industrial production and engineering application.

The invention relates to a nanopore polymer foam and a preparation method thereof, and belongs to the technical field of preparation of polymer foam. The nanopore polymer foam is characterized in thatthe mutual dissolving property of PVDF (polyvinylidene fluoride) and PMMA (polymethyl methacrylate) is utilized, and the PVDF and the PMMA can reach the uniform dispersing at molecule size in a mixture; by leading fluid with certain pressure, the uniformly dispersed PVDF microspheres in the mixture are induced to form crystal grains with certain size, so as to provide a nucleation point with veryhigh concentration for subsequent foaming, and greatly improve the foam pore density; by mixing with the PVDF, the glass-transition temperature of a foaming substrate is reduced, the rheological property of the substrate is improved, the expanding time of the foam pores is effectively prolonged, and the foaming rate of the polymer foam is greatly improved; the large-rate nanopore polymer foam canbe prepared at high efficiency, and the foam pore structure can be effectively regulated and controlled; the technology is simple, the preparation process is green and pollution-free, and the cost islow.

The invention discloses a micro-molecule polypeptide, and the amino acid sequence of the micro-molecule polypeptide is as shown in the SEQ ID NO.1. The invention further provides application of the micro-molecule polypeptide. The polypeptide is excellent in alpha-glucosidase inhibitory activity and antioxidant activity and strong in stability, and has a remarkable application potential, and the structure of the polypeptide is easy to regulate and control.

The invention discloses preparation and an application of a magnetic nanoring microwave absorbing agent, and particularly relates to a magnetic nanoring microwave absorbing agent with characteristics of good monodispersity and homogeneity, high magnetic responsiveness, excellent microwave absorbing performance, adjustable size and composition and the like as well as a preparation method and an application of the magnetic nanoring microwave absorbing agent. A magnetic nanoring adopts a polycrystalline structure formed by agglomeration of nanocrystallines and is oval, the length of a long axis is 28-175 nm, the length of a short axis is 18-130 nm, and the ring wall thickness is 7-35 nm; the magnetic nanoring comprises the component of Fe3O4, Fe3O4 / C or Fe / C with a spinel structure; ferric glycolate is taken as a precursor, and the magnetic nanoring is prepared by adopting an inert gas protective carbothermic reduction method-carbonization-solid-phase diffusion growth cooperation mechanism. The preparation and the application of the magnetic nanoring microwave absorbing agent are simple in process, low in cost and high in efficiency and facilitate industrial application and popularization, and the Fe3O4 and the carbon-magnetic nanoring have broad application prospects in the aspects of microwave absorption, a catalyst, an electrode material, a magnetic recording material, a biological sensor, separation or medical imaging.

The invention discloses a micro-molecule polypeptide, which has an amino acid sequence as shown in SEQ ID No.1. The invention also provides application of the micro-molecule polypeptide. The polypeptide provided by the invention has favorable alpha-glucosaccharase inhibitory activity and antioxidant activity, high stability, an easily-regulated structure and a remarkable application potential.

The invention discloses an alkyl siloxane-olefin random copolymer as well as a preparation method and an application thereof. The structure of the alkyl siloxane-olefin random copolymer is shown in formula (I), wherein R refers to C1-C8 alkyl groups or phenyl groups, the value of m ranges from 1.5 to 200, the value of n ranges from 150 to 2000, the ratio of m to n ranges from 0.01 to 0.1, a is an integer between 0 and 8, b is an integer between 1 and 9, and c is an integer between 0 to 8. The alkyl siloxane-olefin random copolymer is used as a polyolefin processing modifier, can effectively improve the flowing property of a product, and does not affect and even improves the mechanical property of the product.