51results about How to "Guaranteed anti-aging properties" patented technology

The invention discloses a recycled polyester material and a preparation method thereof. The recycled polyester material is composed of waste polyester, an inorganic filler, glass fiber, a chain extender, a deodorant, a dispersant, an antioxidant, an ultraviolet absorber and a heat stabilizer. The preparation method of the recycled polyester material includes the following steps: 1) preparing wastepolyester particles; 2) mixing the waste polyester particles, the inorganic filler, the glass fiber, the chain extender, the deodorant and the dispersant uniformly, and carrying out extrusion granulation to obtain the recycled material; and 3) mixing the recycled material, the antioxidant, the ultraviolet absorber and the heat stabilizer uniformly, and then performing extrusion granulation to obtain the recycled polyester material. The recycled polyester material has high tensile strength, high bending strength, high elongation at break, good aging resistance and good workability, the recycling preparation process is simple, and the recycled polyester material can be used as an injection molding raw material of helmets, household appliance shells, building boards and toys without additionof new resin.

The invention discloses a prefabricated sandwich building wall panel. The prefabricated sandwich building wallboard comprises an outer wall panel and an inner wall panel, wherein the outer wall panelcomprises a facing layer, a thermal insulation layer and a structural layer, and the inner wall panel comprises a facing layer, a thermal insulation layer and a facing layer. According to the preparation technology of the prefabricated sandwich building wallboard, crushed straw is subjected to pre-treatment, the pre-treatment comprises alkaline water soaking, filtering and drying, according to effects of size of untreated and treated crop straw fibers on dissolved matters and water-absorbing swelling / drying shrinkage performance, effects of the straw particle size and corresponding technologyparameters on the performance of a straw / foam concrete compound material are studied, and the corresponding technology parameters and a mixing proportion are optimized; a heat conductivity coefficientand the ageing resistance performance of the prefabricated sandwich panel are ensured, based on the proper mixing proportion, a high polymer material is added, an optimal binding mode of inner panels, the thermal insulation layers and outer panels is fished out, moreover, the problem that the straw is prone to rotting and going bad is solved, the stability of the straw is maintained, and the mechanical strength and the durability of the novel wallboard are guaranteed.

The invention discloses an acrylate polymer composite waterproof system and a construction method thereof. The system comprises a waterproof coating spread on a base layer. The waterproof coating comprises a base adhesive layer sprayed on the base layer, an acrylate polymer waterproof coiled material adhered to the base adhesive layer and a protection layer sprayed on the coil material. The construction method comprises the steps of cleaning the base layer and printing the pink line, spraying the base adhesive layer on the pre-spread location, while the layers being still wet, swiftly spreading the acrylate polymer waterproof coiled material, using a scraper to level wrinkled area, after the spreading of the waterproof coiled materialm drying in natural condition, after the coiled material being solidly glued, spraying the protection layer uniformly on the surface, and airing for 24 hours to complete the construction. The three layers of waterproof structure coordinate with each other, and constitute a highly reliable waterproof system, thus overcoming the functional limitation of a single water proof material. The system has the advantages of being strong in anti-permeation ability and tensile strength, good in low temperature flexibility, small in coefficient of linear expansion, high in adhesive strength, strong in deformation adaptability, and long in service life. The construction method has the advantages of requiring no open fire operation, being convenient for construction and being environment-friendly and the like.

The invention discloses a heating film with a graphene-based hot-pressed copper sheet structure and a preparation method thereof. The heating film includes a first insulating layer, a heating layer located on the first insulating layer, an electrode layer located on the heating layer, The protective layer positioned on the electrode layer, the second insulating layer positioned on the protective layer; the heat generating layer is a graphene layer, and the electrode layer is two electrode copper strips fixed on the heat generating layer by hot pressing, so Described graphene layer is made of following raw materials by weight, graphene 24-34, carbon black 6-8, polyol ester 2-5, bamboo charcoal powder 1-2, polydimethylsiloxane 1-3, turpentine 12‑18, Sodium Lauryl Sulfate 1‑3. The graphene heating film of the invention is resistant to aging and rubbing, and has a simple and easy manufacturing method.

The invention discloses a low-voltage cable branching connector and a low-voltage cable distribution box. The low-voltage cable branching connector is characterized in that annular tooth grooves are machined inside vertical side pipeline openings and horizontal side pipeline openings of right-angle pipelines inside a connector body cover; right-angle portions of the right-angle pipelines are communicated through a connector body; two adjacent surface positions of the connector body, which are opposite to vertical side pipelines and horizontal side pipelines, are provided with circular holes; every two circular holes are communicated; internal threads are machined on the circular holes which are corresponding to horizontal pipelines; middle sleeves are arranged inside the vertical side pipeline openings of the connector body cover; the annular tooth grooves are formed inside the middle sleeves and cables are inserted inside the annular tooth grooves; ends of the cables are inserted into the connector body circular holes which are corresponding to the vertical side pipelines and are compressed through cable pressing nuts. The low-voltage cable distribution box is characterized in that the above four rows of low-voltage cable branching connectors are installed on trapezoid folding plates of a box body base plate. The low-voltage cable branching connector and the low-voltage cable distribution box can safely and efficiently achieve load distribution.

The invention relates to a process for producing high concentration plastic nanometer flame-proof agglomerates, which comprises carrying out powdery combustion inhibitor surface modification, high speed kneading, mixing homogeneously, activation processing. According to the disclosed process, nanometer magnesium hydroxide is employed to charge silicane coupling agent A-174%, surface active dispersing agent KO-311 are charged into anhydrous alcohol for homogeneous dilution, finally spraying into homogenizer using high pressure mist.