3results about "Ageing prevention agents addition" patented technology

Disclosed is a resin-impregnated fibrous material in the form of a sheet or a web, comprising an impregnating resin which comprises a) at least one resin component, which is selected from the group consisting of aminoplast resins and phenoplast resins and combinations thereof; and b) a concentrated aqueous polymer dispersion with an average particle size of less than 1000 nm comprising a polymer carrier prepared by heterophase radical polymerization of at least one ethylenically unsaturated monomer in the presence of components b1), b2) and b3); or an emulsion, comprising components b1), b2) and b3, an organic solvent and water; with b1) being at least one triazene-type light stabilizer of formula (I); b2) being at least one hindered amine-based light stabilizer; b3) being a non-ionic, cationic or anionic surfactant.

The invention belongs to the technical field of environmental barrier coatings, and particularly relates to a preparation method of an anti-laser ablation coating based on C / C-SiC paper, the coating is prepared through single-layer or laminated pasting of prefabricated C / C-SiC paper, the C / C-SiC paper is composed of carbon fibers, a carbon matrix, SiC, a modifier and a binder, and the fibers in the paper are lapped and entangled to form two-dimensional net paper. The preparation method of the coating comprises the following steps: S1, manufacturing C / C-SiC paper; and S2, attaching the C / C-SiC paper to the surface of the base material, and performing hot-pressing curing to prepare the coating which is mechanically interlocked and combined with the surface of the base material. According to the method, the C / C-SiC paper is prefabricated, the anti-laser ablation coating is prepared through a paper pasting method, the anti-scouring capacity of the coating is effectively improved through lap joint and entanglement of fibers in the paper, the coating is prepared through the paster conveniently and rapidly, the paster can adapt to any shape through cutting, the preparation efficiency is high, the equipment requirement is low, and the paster can also be used for rapidly repairing the damaged coating; and the anti-laser real-time protection requirement can be met.

The invention discloses a decorative plate with an antibacterial function and a preparation method thereof, and relates to the technical field of decorative plates. The preparation method of the decorative plate with the antibacterial function comprises the following steps: (1) dipping decorative paper in a melamine resin solution, and drying to obtain treated decorative paper; the melamine resin solution is prepared by mixing 10-12 parts by weight of melamine resin, 3-5 parts by weight of an antibacterial agent, 0.4-0.6 part by weight of a flame-retardant anti-aging agent, 0.1-0.3 part by weight of a dispersing agent and 0.5-0.8 part by weight of a toughening agent; and (2) spraying an adhesive on one side of the magnesium oxide board, then pasting the treated decorative paper, and performing hot pressing to obtain the decorative board with the antibacterial function. The prepared decorative plate has good anti-aging performance, flame retardant performance and antibacterial performance.