High performance fiber composite guardrail

[0026] The high-performance fiber composite guardrail provided in this embodiment includes the following components in parts by weight: 85 parts of ultra-high molecular weight polyethylene fiber; 80 parts of vinyl ester resin (VER).

[0027] The preparation method is as follows:

[0028] Weave ultra-high molecular weight polyethylene fibers into plain or twill cloth; dilute the silane coupling agent with ethanol (the volume ratio of silane coupling agent and ethanol is 1:4), and coat ultra-high molecular weight polyethylene with a soft roller After soaking the surface of the fiber cloth, heat the ultra-high molecular weight polyethylene fiber cloth to 80 degrees to remove ethanol, use a soft roller to evenly coat the vinyl ester resin (VER) mixture on the UHMWPE cloth, and then Hot press molding under the conditions of 100°C and pressure of 2.4MPa to prepare a thin layer of composite material, and then put the multi-layer material into a wave-shaped mold at a temperature of 110-1

[0030] The high-performance fiber composite guardrail provided in this embodiment includes the following components in parts by weight: 90 parts of ultra-high molecular weight polyethylene fiber; 85 parts of vinyl ester resin (VER).

[0031] The preparation method is as follows:

[0032] Weave ultra-high molecular weight polyethylene fibers into plain or twill cloth; weave various patterns of cloth made of multi-layer ultra-high molecular weight polyethylene fibers treated with the same coupling agent as in Example 1, and pour vinyl into them through a winding machine. In the trough of the ester resin (VER) mixture, it is evenly spread by multiple soft rollers, and then drawn into the wave-shaped shaping mold with a length of more than 15 meters by a drafting machine. The mold temperature is 110-130 ° C, and the mold pressure is 2 -3Mpa, the pulling speed is 3m / min. After the mold is released, it is cut by a fixed-length cutting saw, and it is automatically turned over and unlo

[0034] The high-performance fiber composite guardrail provided in this embodiment includes the following components in parts by weight: 75 parts of ultra-high molecular weight polyethylene fiber, and 100 parts of polymethyl methacrylate (PMMA).

[0035] The preparation method is as follows:

[0036] The ultra-high molecular weight polyethylene fibers are woven into plain or twill cloth; the multilayer ultra-high molecular weight polyethylene fiber cloth and polymethyl methacrylate (PMMA ) with a ratio of 75:100, put the fiber (or cloth) and resin into the wave-shaped mold and pressurize it. The mold temperature is 110-130°C, the pressure is 2.5-4Mpa, and the time is 2-6 minutes. After demoulding, it is the finished product. The longitudinal shear strength of the finished product is 12-17Mpa, and the longitudinal tensile strength is 1.0-1.3Gpa.