A preparation method of a conductive elastomer includes the following steps: (1) according to the mass percent of 20˜75%, dissolving the metallic salts into deionized water to form an electrolyte solution, wherein said metallic salts is either of magnesium nitrate, sodium nitrate, zinc nitrate, cesium nitrate, calcium nitrate, neodymium nitrate, aluminum nitrate, potassium nitrate, potassium chloride, magnesium chloride, calcium chloride, sodium chloride, zinc chloride, cesium chloride, aluminum chloride or their combinations; (2) according to the mass percent of 10˜40%, mixing starches into the electrolyte solution prepared in step (1), then at the temperature of 33˜120 ° C., stirring to gelatinize the starches, forming a viscous liquid; (3) standing the viscous liquid obtained in step (2) at 25˜90° C. for 10 min to 48 h to obtain the conductive elastomer.

Provided is a preparation method of a coating material. The method includes: using an aluminum salt and a silicon source as precursors; and performing hydrothermal crystallization and calcination treatments successively under an action of a template agent to obtain the coating material, wherein the template agent is used to cause the coating material to form a porous spherical structure. In the embodiments of the present disclosure, the preparation process of the coating material is simple and the cost is low, and the specific surface area of the prepared coating material is large.

A fireproof and waterproof biomass floor and a manufacturing method therefor. The floor comprises, in parts by weight, 80-95 parts of a wood fiber, 5-20 parts of an additive, and 0-1 part of a pigment. The additive comprises the following raw material components in percentage by weight: a metal oxide: 10-20 wt %; a hydrochloride: 10-20 wt %; a non-metal oxide: 5-10 wt %; a weak acid: 5-10 wt %; a sulfate: 1-2 wt %; a phosphate: 1-2 wt %; and water: 36-68 wt %. The manufacturing method comprises: mixing the wood fiber, the additive, and the pigment; flatly laying the obtained mixture on a base plate; performing die pressing, and standing for 3-10 days; performing demolding; subjecting the obtained demolded plate to edge cutting, drying, sanding, assembling, hot pressing, cutting, curing, slotting, and silent pad pasting on the back face. The floor has the advantages of being fireproof, ultralow in water absorption thickness expansion rate, and ultralow in formaldehyde release amount.

Provided is a carboxylic acid-modified nitrile-based copolymer latex, and more particularly, provided are a carboxylic acid-modified nitrile-based copolymer latex which includes a carboxylic acid-modified nitrile-based copolymer including a monomer-derived repeating unit; and a repeating unit derived from a monomer represented by Chemical Formula 1 below, the monomer-derived repeating unit including a conjugated diene-based monomer-derived repeating unit, an ethylenically unsaturated nitrile-based monomer-derived repeating unit, and an ethylenically unsaturated acid monomer-derived repeating unit (see description of the present invention), a method for preparing a carboxylic acid-modified nitrile-based copolymer latex, a latex composition for dip-forming including the copolymer latex, and an article formed by the composition.

Described herein is a curable fluoropolymer composition comprising: an amorphous fluoropolymer; and particles of a metal fluoride, wherein the particles are not substantially surface treated and wherein the metal of the metal fluoride comprises at least one of an alkaline earth metal, a Group III transition metals, and a Lanthanide metals. Also described are cured articles made with the curable fluoropolymer composition.

A high temperature low outgas thermal interface material is provided. The thermal interface material includes a plurality of heat conducting particles dispersed within a fluorine containing fluid such as perfluoropolyether. The high temperature low outgas thermal interface material provides thermal conductivity between a heat source and a heat sink at temperatures greater than 200° C.

A pressure sensitive adhesive particle includes a styrene resin that contains, as polymerization components, styrene and a vinyl monomer other than styrene; and a (meth)acrylate resin that contains, as polymerization components, at least two (meth)acrylates that account for 90 mass % or more of all polymerization components of the (meth)acrylate resin, in which the pressure sensitive adhesive particle has a sea phase that contains the styrene resin, and island phases that are dispersed in the sea phase and contain the (meth)acrylate resin, the pressure sensitive adhesive particle has at least two glass transition temperatures, and a difference between the lowest glass transition temperature and the highest glass transition temperature is 30° C. or more, and in a cross section of the pressure sensitive adhesive particle, an area ratio of the island phases is 30% or more and 85% or less.

A pressure sensitive adhesive particle includes a styrene resin that contains, as polymerization components, styrene and a vinyl monomer other than styrene; and a (meth)acrylate resin that contains, as polymerization components, at least two (meth)acrylates that account for 90 mass % or more of all polymerization components of the (meth)acrylate resin, in which the pressure sensitive adhesive particle has a sea phase that contains the styrene resin, and island phases that are dispersed in the sea phase and contain the (meth)acrylate resin, the pressure sensitive adhesive particle has at least two glass transition temperatures, and a difference between the lowest glass transition temperature and the highest glass transition temperature is 30° C. or more, and in a cross section of the pressure sensitive adhesive particle, an area ratio of the island phases is 30% or more and 85% or less.

Pressure-responsive particles include pressure-responsive base particles and resin particles, in which the pressure-responsive base particles contain a styrene-based resin that contains styrene and other vinyl monomers as polymerization components and a (meth)acrylic acid ester-based resin that contains at least two kinds of (meth)acrylic acid esters as polymerization components, a ratio of a mass of the (meth)acrylic acid esters to a total mass of polymerization components is 90% by mass or more in the (meth)acrylic acid ester-based resin, the pressure-responsive particles have at least two glass transition temperatures, a difference between a lowest glass transition temperature and a highest glass transition temperature is 30° C. or higher, and a ratio of a mass of the resin particles to a total mass of the pressure-responsive particles is 0.05% by mass or more and 2.0% by mass or less.

Pressure-responsive particles include pressure-responsive base particles and resin particles, in which the pressure-responsive base particles contain a styrene-based resin that contains styrene and other vinyl monomers as polymerization components and a (meth)acrylic acid ester-based resin that contains at least two kinds of (meth)acrylic acid esters as polymerization components, a ratio of a mass of the (meth)acrylic acid esters to a total mass of polymerization components is 90% by mass or more in the (meth)acrylic acid ester-based resin, the pressure-responsive particles have at least two glass transition temperatures, a difference between a lowest glass transition temperature and a highest glass transition temperature is 30° C. or higher, and a ratio of a mass of the resin particles to a total mass of the pressure-responsive particles is 0.05% by mass or more and 2.0% by mass or less.