31results about How to "Gas barrier" patented technology

The invention relates to a high-filling-content micro-nano powder / polymer composite material for 3D printing and a preparation method and a product thereof. The material contains the following raw materials, by weight, 10-30 parts of a polymer, 90-70 parts of a micro-nano powder, 0.05-0.2 part of an irradiation sensitizer and 0.01-0.02 part of an antioxidant. The micro nano powder is used as a main material and polymer resin is used as a binding agent, and moulding is finished by a 3D printing mode. Simultaneously, the irradiation sensitizer is added, and the polymer resin forms a three-dimensional cross-linked network after electron beam irradiation. Then, strength, heat resistance and chemical corrosion resistance are raised after resin bonding. The high-filling-content micro-nano powder endows the moulding material with excellent mechanical properties. In addition, according to changes of product usage environment and demand, types of the micro-nano powder are changed so as to obtain a material with special functionality, such as excellent conductivity, thermal conductivity, flame resistance, impact resistance and the like.

The invention provides a graphene oxide modified aqueous fireproof coating material, which comprises, by mass, 20-40 parts of graphene oxide modified acrylic emulsion, 30-60 parts of intumescent flameretardant, 0.1-10 parts of a first neutralizer, 2-20 parts of a cosolvent, 0.1-10 parts of a dispersing agent, 0.1-10 parts of a wetting agent and 10-20 parts of a pigment filler. According to the invention, the preparation method of the graphene oxide modified aqueous fireproof coating material is different from physical modification, wherein the graphene is added into the acrylic emulsion in achemical connection manner and is applied to preparation of the coating material, so that and the dispersity of the graphene in the aqueous fireproof coating material system and the compatibility of the graphene with other base materials can be improved; and the graphene with the sheet-like structure can enhance the strength of the carbon layer after the coating is combusted, so that the purposesof flame retardance and smoke suppression are achieved.

A flame-retardant, characterized in that it comprises a layered titanic acid in the form of a nano sheet which is formed by a method comprising treating a layered titanic acid salt with an acid or warm water and then reacting the resultant mixture with an organic basic compound, or carrying out the step of treating a layered titanic acid salt with an acid or warm water and the step of reacting with an organic basic compound, in one pot, to thereby swell or separate the layers; and a flame-retardant resin composition, characterized in that it comprises 100 parts by weight of a resin and 0.5 to 50 parts by weight of the above layered titanic acid in the form of a nano sheet.

A flexible transparent conductive film of the invention has a base film and a transparent conductive layer formed on the base film by applying a coating liquid for forming the transparent conductive layer. The flexible transparent conductive film is characterized in that the base film is composed of a plastic film having a gas-barrier function and a thickness of 3 to 50 [mu]m and a backing film removably joined to one side of the base film, the transparent conductive layer provided on the other side contains main components which are conductive oxide particles and a binder matrix, and the transparent conductive layer is subjected to compression processing together with the base film and the backing film. A flexible functional element of the invention is characterized in that a functional element such as a liquid crystal display element, an organic electroluminescence element, an inorganic dispersion electroluminescence element, or an electronic paper element is fabricated on the flexible transparent conductive film.

Provided are: a laminate including a first substrate, a second substrate, a print layer provided on the second-substrate-side surface of the first substrate, and an adhesive layer which is disposed between the print layer and the second substrate and which bonds the first substrate and the second substrate to each other, the print layer being formed from a printing ink composition (A) that includes an urethane resin (A1) and a vinyl chloride-vinyl acetate copolymer resin (A2), and the adhesive layer being formed by applying a two-liquid-type polyurethane-based adhesive (B) that contains a polyol (B1) having a number-average molecular weight of 2,300 or less and an isocyanate compound (B2); and a method for manufacturing the laminate.

A synthetic resin container that has attained an enhancement of steam barrier capability while retaining a high gas barrier capability against oxygen, etc. through simple and easy means. There is provided a PET bottle obtained by forming, on an internal surface of wall portion (1) of PET resin constructing the main body of the container, barrier coating (2) containing a silicon oxide wherein among silicon, oxygen and carbon composition ratios (atom%), the oxygen composition ratio is 50 atom% or higher while the carbon composition ratio is in the range of 3 to 20 atom% in accordance with plasma CVD technique using an organic silicon compound gas and oxygen gas as raw materials. Preferably, the carbon composition ratio of the barrier coating (2) is 8 atom% or below.

A flexible hose of the invention has a hose wall which is formed by laminating resin layers. The resin layer acting as a gas barrier is formed by spirally winding a gas barrier resin strip and thermally fusing or bonding axially adjoining edges of the strip to each other. The resin layers are thermally fused or bonded to one another to become one piece.

The invention belongs to the technical field of bio-based degradation, and particularly relates to a bio-based fully-degradable insect-resistant mulch which comprises a surface layer, a middle layer and an inner layer. The surface layer comprises a surface-layer resin layer and a surface-layer additive layer positioned below the surface-layer resin layer which is modified polyvinyl alcohol resin,and the surface-layer additive layer is an oxidative photodegradation additive; the middle layer comprises a middle-layer resin layer and the middle-layer additive layer positioned below the middle-layer resin layer which is modified polylactic acid resin, and the middle-layer additive layer is an oxidative thermal degradation additive; the inner layer comprises an inner-layer resin layer and an inner-layer additive layer positioned below the inner-layer resin layer which is modified polyhydroxyalkanoate resin, and the inner-layer additive layer is an oxidative biodegradation additive.

A method for forming a vapor deposition film is composed of a silicon oxide on a surface of a substrate is disclosed in which the substrate to be processed is held in a plasma processing chamber and a chemical plasma processing is conducted by supplying an organic silicon compound and an oxidizing gas into the processing chamber. By changing the supply rate of the oxidizing gas during formation of a deposition film while keeping the supply rate of the organic silicon compound gas at a certain fixed rate, there can be formed a chemical vapor deposition film which is excellent in adhesion, plasticity, flexibility, oxygen barrier property and moisture barrier property.

The invention relates to a biodegradable polyester nanocomposite material, and particularly relates to a biodegradable polyester nanocomposite material containing functionalized starch nanocrystal and preparation method of the biodegradable polyester nanocomposite material. The biodegradable polyester nanocomposite material containing functionalized starch nanocrystal is prepared by blending compound master batch of functionalized starch nanocrystal and a polymer with biodegradable polyester granules; the functionalized starch nanocrystal in the biodegradable polyester nanocomposite material is 20-60% of dry weight of the polymer, and is 1%-15% of the total dry weight of the biodegradable polyester and the polymer. The functionalization of the biodegradable polyester nanocomposite material is realized, the prepared biodegradable polyester nanocomposite material containing functionalized starch nanocrystal is an environment-friendly material and has gas barrier property, controllable degradability, as well as a function that fluorine, silicon-containing low surface energy grafted chain is capable of migrating to matrix surface.

A synthetic resin container excellent in heat resistance and high in gas barrier property, and a production method thereof. The container is produced by having a gas barrier material blended into a base phase and subjecting the blended substance to at least two biaxial stretching blow molding processes with heat treating processes in between.

The invention belongs to the field of functional films, and specifically discloses an intelligent moisture control film and a preparation method and application thereof. The intelligent moisture control film includes a support layer, a functional layer and a cross-linking modified layer, and the functional layer is located on the support layer. On one side or both sides, the cross-linking modified layer is located on the functional layer; wherein, the support layer is a porous film, and its material is polyethylene and / or polypropylene, preferably polypropylene; the functional layer It is a dense film, the material of which contains aliphatic polymers containing polyvalent hydroxyl groups, metal salt hygroscopic agents, and optional cross-linking agents and / or antibacterial agents; the material of the cross-linking modified layer is tannic acid. The intelligent moisture-controlling film provided by the invention can keep moisture in the condition of low humidity, has strong dehumidification ability under the condition of high humidity, and has gas barrier properties. The preparation method of the intelligent moisture control film is simple and low in cost, and is particularly suitable for fresh-keeping packaging of vegetables and fruits.

The invention provides a pressure vessel and a manufacturing method thereof. The pressure vessel comprises reinforcing fibers and fiber enhanced resin, which is obtained by impregnating thermosettingresin in the reinforcing fibers. The fiber enhanced resin comprises nylon particles dispersed in thermosetting resin.