An epoxide resin for the manufacture of a fibre-reinforced composite material having fire retardant properties and/or for use as an adhesive or hot-melt adhesive having fire retardant properties, the epoxide resin being halogen-free and phenolic resin-free, the epoxide resin having: A. a mixture of (i) at least one first non-halogenated multifunctional epoxide-containing resin which has an epoxide functionality of greater than 2 and (ii) at least one second non-halogenated multifunctional epoxide-containing resin which has an epoxide functionality of less than or equal to 2; B. at least one catalyst for curing the mixture of epoxide-containing resins to form a cured epoxy resin; and C. a mixture of first, second and third fire retardant additives for reacting together to form an intumescent char when the cured epoxy resin is exposed to a fire, wherein (i) the first fire retardant additive comprises a blowing agent for generating a non-combustible gas, (ii) the second fire retardant additive comprises an acid donor for decomposing to form a phosphoric acid when the cured epoxy resin is exposed to a fire, and (iii) the third fire retardant additive comprises at least one or both of (a) a ceramic or glass material and (b) a ceramic or glass material precursor to form a ceramic or glass material when the cured epoxy resin is exposed to a fire.

An in-situ foaming system for forming a flame-retardant polyurethane foam in situ comprising a first liquid containing a polyisocyanate (A), a second liquid containing a polyol (B), a trimerization catalyst (C), a foaming agent (D), a foam stabilizer (E), and additives (F) comprising red phosphorus and at least one member selected from the group consisting of phosphoric acid esters, phosphate-containing flame retardants, bromine-containing flame retardants, boron-containing flame retardants, antimony-containing flame retardants, and metal hydroxides.

A composition for a 3D printing construction material includes an acrylate oligomer, an acrylate monomer, a UV photoinitiator, a flame retardant, fillers, and additives. In the composition, the acrylate oligomer may be between about 0-30.0 wt % of the composition. The acrylate monomer may be between about 0-30.0 wt % of the composition. The UV photoinitiator may be between about 0.02-1.0 wt % of the composition. The flame retardant may be between about 2.0-20.0 wt % of the composition. The fillers may be between about 20.0-80.0 wt % of the composition. The additives may be between about 0-3.0 wt % of the composition. A method for manufacturing a composition for a 3D printing construction material includes combining an acrylate oligomer, an acrylate monomer, an Uaphotoinitiator, a flame retardant, fillers, and additives.

A carbon material precursor includes an acrylamide/vinyl cyanide-based copolymer which contains 50 to 99.9 mol % of acrylamide-based monomer unit and 0.1 to 50 mol % of vinyl cyanide-based monomer unit; a carbon material precursor composition includes the above-described carbon material precursor and at least one additional component selected from the group consisting of acids and salts thereof; and a method for producing a carbon material, includes subjecting the above-described carbon material precursor or the above-described carbon material precursor composition to thermal-stabilization treatment as necessary, followed by carbonization treatment.

Disclosed is an aqueous bonding composition comprising: (A) a saccharide; (B) a water-soluble synthetic resin; and (C) an inorganic acid ammonium salt, wherein the inorganic acid ammonium salt (C) comprises at least one selected from ammonium dihydrogen phosphate and ammonium chloride. The water-soluble synthetic resin (B) preferably comprises a polyvinyl alcohol-based compound. A wood-based material obtainable by using the aqueous bonding composition is also disclosed.

The aqueous bonding composition is useful for improving performances such as bending strength, bending strength under wet condition, water-absorption thickness expansion coefficient, and peeling strength of a wood-based material in a balanced manner while the composition is capable of bonding at a comparatively low temperature and each component of the composition is excellent in compatibility.

The present invention provides an organic-inorganic polymeric water-retaining fertilizer. The organic-inorganic polymeric water-retaining fertilizer is a co-polymer made by fusion and co-polymerization of an organic water-retaining monomer and an inorganic nutrient under action of a catalyst, a biological enzyme and a modifying agent. The co-polymer is of a three-dimensional mesh-like hydrophilic group structure. In a method for preparing the organic-inorganic polymeric water-retaining fertilizer, after obtaining a neutralized pre-polymer from the organic water-retaining monomer under the action of the catalyst, an initiator and a cross-linking agent are added; the inorganic nutrient and a metasilicate are added simultaneously, a solution is formed by stirring sufficiently; the biological enzyme is added for catalysis; a co-polymer is obtained after fusion and co-polymerization; and granulation and drying are carried out. Preferably, the catalyst is an inorganic alkaline solution. Preferably, the catalyst is selected from the group consisting of a sodium hydroxide solution, a potassium hydroxide solution, an ammonia water and a calcium hydroxide solution.

A halogen-free flame retardant thermoplastic polyurethane elastomer composition and product and flame retardant package thereof comprised thermoplastic polyurethane and halogen-free flame retardant package. The halogen-free flame retardant comprises inorganic phosphorus-based flame retardant and can further comprise expandable graphite, melamine or derivatives thereof and organic phosphorus-based flame retardant. The composition is environmentally friendly and safe, the comprehensive mechanical properties thereof are excellent, does not drip during the burning test, passed UL94 with rating of V01.5 mm, and the limiting oxygen index thereof can be up to 35%.

This invention discloses an electro-welding protective glove and its preparation method. The method comprises: S1, selecting raw materials; S2, preparing a refined terephthalic acid/graphene oxide/ethylene glycol modified slurry; S3, esterification reaction; S4, condensation reaction; S5, heating and melting the modified graphene oxide flame-retardant polyester masterbatch, then spinning it into a bundle; S6, weaving the obtained graphene oxide flame-retardant polyester filament into a woven fabric; S7, preparing a flame-retardant agent finishing solution, immersing the fabric into the finishing solution, then drying it; S8, according to the glove template, cutting and sewing the obtained fabric. This invention also provides an electro-welding protective glove prepared by the method. The method provided by this invention is simple and suitable for electro-welding and other fields, and can effectively protect human safety.

A method of manufacturing a wet rubber masterbatch includes preparing latex containing magnesium in an amount which is not greater than 150 ppm; and making a liquid mixture that includes a rubber component and carbon black. The latex may include rubber particles for which the 90 vol % particle diameter is not greater than 2 m. The liquid mixture can be made by a step (a) in which the latex and a dispersion solvent are mixed; and a step (b) in which a latex solution obtained at step (a) and a slurry containing the carbon black are mixed. The method for manufacturing a wet rubber masterbatch may satisfy: 0.1<b/a<1.0, where a indicates amount (ppm) of magnesium present in latex; and b indicates amount (parts by mass) of carbon black in the liquid mixture for every 100 parts by mass of rubber component in the liquid mixture.

A method for stabilizing a composition made from PAEK, said method including a step of incorporating a stabilizing agent against thermo-oxidation phenomena, said method being characterized in that said incorporated stabilizing agent is a phosphate salt, or a mixture of phosphate salts. The phosphate salt is incorporated into the composition based on PAEK by one of the following techniques: dry blending, compounding, wet impregnation or during the process for synthesizing the PAEK polymer.