April domestic paint patent express 2

Special transparent primer for solid wood and preparation method thereof

Publication number: CN107916062B

Public Day: 2020-03-31

Patentee: Guangdong Huilong Paint Co., Ltd.

Abstract: The present invention discloses a special transparent primer for solid wood and a preparation method thereof. The special transparent primer for solid wood uses two special saturated polyester resins and epoxy resins plus appropriate amounts of talc powder and other auxiliary raw materials to make a transparent primer The paint is the first component; the Butyl Acetate and polyisocyanate curing agent are formulated into the second component; the butyl acetate, propylene glycol methyl ether acetate, dimethyl carbonate, xylene, etc. are formulated into the propylene component. The three components of A, B and c are mixed evenly in a certain proportion and then coated on the surface of high-grade solid wood furniture to form a coating; after testing and practical results, it is proved that the coating not only has strong adhesion, good flexibility, high hardness and transparency, but also It has the properties of solid reinforcement, filling ability, anti-sag, highlights the natural texture (clearness, three-dimensional sense) of wood, and greatly improves the texture and grade of solid wood furniture.

Wear-resistant anticorrosive paint for inner wall of thermal pipeline and preparation method thereof

Publication number: CN110922889A

Public Day: 2020-03-27

Patentee: Shanghai Hilong Saineng New Material Co., Ltd.

Abstract: The present invention discloses a wear-resistant anticorrosive coating for the inner wall of a thermal pipeline. The coating contains component A and component B. The component A includes: phenolic epoxy resin, silicone epoxy hybrid resin, methyl Isobutyl ketone, inorganic filler and auxiliary agent; the B component contains modified alicyclic amine and aminoalkoxysilane; wherein, the inorganic filler includes modified zinc phosphate, aluminum tripolyphosphate, mica powder, Silicon carbide, carbon fiber and titanium dioxide. The invention also discloses a preparation method of the wear-resistant anticorrosive coating on the inner wall of the thermal pipeline. The heat-resistant anti-corrosion coating of the inner wall of the thermal pipeline of the present invention not only has high temperature resistance and high pressure resistance, protects the pipeline from corrosion by hot water media, but also has good wear resistance and stain resistance. The friction damage of the iron scrap welding slag and other impurities contained in the pipeline in the transportation of hot water has greatly extended the service life of the thermal pipeline.

Preparation method and product of hydrophobic polyurea / Graphene oxide protective coating material

Publication number: CN110922871A

Open day: March 27, 2020

Patentee: Hunan University of Science and Technology

Abstract: The present invention relates to a method for preparing a hydrophobic polyurea / graphene oxide protective coating material: (1) preparation of a double-hydroxylated fluoropolymer containing tridecafluoroxyl ester; (2) Modification of graphene oxide (GO) with methyl diisocyanate (HDI) and polyaspartate; (3) modification and modification of dihydroxylated fluoropolymer, polyaspartate, HDI trimer Graphene oxide is mixed and uniformly coated according to a certain ratio to obtain a graphene protective coating material with hydrophobic properties. In the present invention, a hydrophobic monomer and modified graphene oxide are introduced to prepare a polyurea coating material which has both hydrophobicity and high anticorrosion performance, and its static water contact angle is as high as 151.7 °. The hydrophobic polyurea / graphene oxide protective coating material prepared by the invention has excellent hydrophobic performance, anti-corrosion performance and low VOC emission, and can be applied to the protection of offshore wind power blades.

Super weather-resistant PVDF double-layer powder coating and preparation method thereof

Publication number: CN108047836B

Public Day: 2020-03-27

Patentee: Guangdong Huajiang Powder Technology Co., Ltd.

Abstract: The present invention provides a super weather-resistant PVDF double-layer powder coating and a preparation method thereof. First, an acrylic resin or a saturated carboxyl-terminated polyester resin or a saturated hydroxyl-terminated polyester resin is matched with a corresponding curing agent, auxiliary agent and pigment Fillers and other materials are made into single-component powder coatings by melt extrusion and crushing to a suitable particle size, and then PVDF resin is mixed with corresponding additives, pigments and fillers, and ultrafine single-component powder particles are prepared by pre-mixing Control the main shaft frequency, temperature and holding time and other parameters of the agglomeration and dispersion equipment to bond and agglomerate the above two single-component powders to produce a high-performance PVDF double-layer powder coating. The invention significantly improves the adhesion and powder stability of the PVDF fluorocarbon powder coating through the optimization of the formulation and the innovation of the semi-melting and semi-bonding process, and solves the surface flatness and impact resistance of the existing domestic PVDF fluorocarbon powder coating problems such as poor impact resistance and difficulty in industrialization.