32results about How to "Good high temperature resistance and flame retardant effect" patented technology

The invention discloses a high-strength flame-retardant PVC car film and a preparation method thereof, specifically relates to the field of car film production, including a reinforced base layer, a film layer and a flame-retardant layer, the film layer is provided with two layers, and the two layers of the film Layers are respectively located at the top and bottom of the reinforced base layer, and the flame retardant layer is located at the top of the upper film layer of the reinforced base layer; the reinforced base layer includes a forming frame, a No. 2 fixing line and a fixing film, and two groups of , the No. 2 fixed line is fixedly arranged between two sets of forming frames, and the fixed film is movably arranged between the two sets of forming frames. The forming frame includes No. 1 fixed line, cavity and connecting strip. The vertical direction of No. 1 fixed line corresponds to two groups, and the cavity is located between the two groups of No. 1 fixed line. The invention can improve the overall strength, and the forming frame formed as the central support layer has better tensile strength in the warp direction and weft direction, and can effectively prevent the film layer from leaving creases when it is bent.

The invention discloses a vacuum compression bag with an antibacterial function and a production process thereof, and relates to the field of packaging materials. The vacuum compression bag is formed by a high-temperature-resistant outer layer, a first antibacterial adhesive layer, an impact-resistant intermediate layer, a second antibacterial adhesive layer and a corrosion-resistant inner layer from outside to inside through hot pressing. The production process comprises the seven procedures of preparation of the high-temperature-resistant outer layer, preparation of the impact-resistant intermediate layer, preparation of the corrosion-resistant inner layer, preparation of an antibacterial adhesive, coating, hot-pressing and rewinding and hot melting. Compared with the prior art, the vacuum compression bag has excellent antibacterial property, corrosion resistance, impact resistance, breakdown resistance and high temperature resistance, and is suitable for vacuum storage of materials in a high-temperature corrosion environment, the impact strength reaches 36 MPa, the tensile strength reaches 52.4 MPa, the elongation at break reaches 106%, and the antibacterial rate to escherichia coli, staphylococcus aureus and candida albicans reaches 99.7%, 98.3% and 95.7% correspondingly.

The invention discloses a low-smoke halogen-free polyolefin insulated and shielded cable, which comprises a conductive core, an isolating guide layer, an insulating sheath layer, a shielding sheath layer and an outer protecting sleeve layer. A preparation method of the low-smoke halogen-free polyolefin insulated and shielded cable comprises a wire drawing procedure, a wire bundling procedure, a compound stranding procedure, an isolating guide layer process, an insulating sheath layer process, a shielding sheath layer process and an outer protecting sleeve layer process. By the low-smoke halogen-free polyolefin insulated and shielded cable and the preparation method thereof, the cable can have good anti-stretching and anti-bending properties, high temperature resistant and flame retardant properties and good insulating and shielding properties, can effectively shield the interference of external electromagnetism and the like, improves the transmission quality of the cable and is long in service lifetime and beneficial to popularization and application.

The invention discloses a high temperature resistant and flame retardant computer cable and a preparation method thereof. The preparation method comprises the preparation steps of a, carrying out drawing and annealing to obtain conductors; b, mutually twisting the conductors to obtain conductor cores; c, extruding an insulating layer outside each conductor core by adopting an extruding machine, then wrapping a shielding layer outside the insulating layer, and finally wrapping a fire resistant layer outside the shielding layer to obtain a wire core; d, mutually twisting the wire cores around the outer surface of a reinforcement core to obtain a cable core; e, wrapping a filling layer; f, wrapping an inner wrapping belt layer; g, extruding a fireproof layer; h, wrapping an outer wrapping belt layer; and i, extruding an outer sheath layer. The preparation method carries out improvement in allusion to the existing computer cable preparation method so as to improve the problems such as poorhigh temperature resistance, poor flame retardance, low structural strength and short service life of the existing computer cable. The computer cable prepared according to the invention is high in structural strength and long in service life and has excellent high temperature resistance and flame retardance.