8 results about "Polymer composites" patented technology

The invention discloses a composite electrolyte material and a preparation method thereof and belongs to the technical field of lithium secondary ion battery electrolytes. Polymer fibers are prepared by an electrostatic spinning method, then silicon oxide/polymer composite fibers are prepared by a polycondensation method, and the silicon oxide/polymer composite fibers are soaked in an ionic liquid electrolyte for adsorption treatment to obtain the ionic liquid/silicon oxide/polymer fiber composite electrolyte material. A silicon oxide/polymer composite fiber material is used as a skeleton, has high adsorption space and adsorption efficiency, and can absorb a large amount of active ionic liquid components; the ionic liquid containing the lithium salt is used as an active liquid component for loading ionic conduction, has the characteristics of high ionic conductivity, non-volatility, non-flammability, chemical stability and the like, and is applied to a lithium battery system, so safety of the battery is effectively improved; the composite electrolyte material provided by the invention has high ionic conductivity and high thermal decomposition temperature, and meets the normal operation of the lithium secondary battery.

The invention discloses a wear-resistant polymer composite. The wear-resistant polymer composite is prepared from the following raw materials in parts by weight: 60-80 parts of polyethylene, 40-65 parts of epoxy resin, 10-20 parts of glass fibers, 5-15 parts of ceramsites, 5-10 parts of graphite powder, 5-10 parts of silicon dioxide, 0.1-0.2 part of an accelerator and 5-10 parts of a coupling agent. The composite provided by the invention is added with combination of ceramsites and silicon dioxide, so that the wear-resisting property of the composite is obviously improved, the service life is prolonged, and the cost investment is low.

The invention discloses a preparation method for metal/polymer with a double-layer nanostructure. The method comprises the following steps of coating a layer of anti-adhesion material with low surface energy on a surface of a template by using a self-assembling method to serve as an anti-adhesion layer; then depositing a nano metal thin-film layer on the anti-adhesion layer; further spin-coating a layer of ultraviolet photoresist on the metal thin-film layer; covering a quartz plate using as a substrate on the surface of the ultraviolet photoresist; implementing ultraviolet imprint in a reversely imprinting manner, thus allowing the ultraviolet photoresist to fill into the nano metal thin-film layer; and acquiring a finished product by demolding after the ultraviolet photoresist is completely cured. The preparation method provided by the invention is short in technological process, simple and easy to implement; the template can be used repeatedly, and thus the preparation cost is low; the metal/polymer with the double-layer nanostructure prepared according to the method is high in compaction rate and good in intensity index; the nano metal thin-film layer has less interspace at the interior, even doing not have any interspace.

The invention relates to a large load-bearing compressed shape-memory polymer composite material release mechanism for space, relating to a polymer composite material release mechanism. In order to solve the problem that the traditional release mechanism produces an impact during the space release process, and the explosion fragments are easy to damage the surrounding equipment. The invention includes a heating drive device and a main structure connector made of shape memory polymer composite material and a release mechanism connector; the main structure connector includes a flanged connection plate and an outer sleeve of the release mechanism; the release mechanism connector includes a connecting chassis and the inner sleeve of the release mechanism; the outer sleeve of the release mechanism is sleeved on the outside of the inner sleeve of the release mechanism, and an external force is applied to make the outer sleeve of the release mechanism and the inner sleeve of the release mechanism relatively fixed; the heating drive device is heated, and the shape memory polymer composite material The outer sleeve of the release mechanism made of high-quality material and the inner sleeve of the release mechanism return to the straight cylinder state after being heated, and are separated from each other to realize the release. The invention is applicable to the release field of aerospace equipment and the like.

The invention provides a graphene oxide polymer composite proton exchange membrane, a preparation method thereof and application. The composite proton exchange membrane comprises graphene oxide and polymer resin; the graphene oxide is adenosine triphosphate modified graphene oxide; the mass percentage of the graphene oxide in the composite proton exchange membrane is 0.1-15%; the mass percentage of the polymer resin in the composite proton exchange membrane is 85-99.9%. The graphene oxide orderly distributed in the composite proton exchange membrane provided by the invention constructs a proton transmission channel with long-range continuity; strong interaction is generated between phosphate groups and between the phosphate groups and sulfonic acid groups in the graphene oxide channel, sothat rich proton transfer sites are provided for the composite proton exchange membrane, and the improvement of proton conduction performance is promoted; the graphene oxide is of a layered arrangement structure and effectively serves as a barrier layer of methanol molecules, so that the permeation rate of fuel is reduced, and the selectivity of the proton exchange membrane is improved.