Highway protective fence rubber protective cover preparation method

Abstract

The invention discloses a highway protective fence rubber protective cover preparation method. The method comprises the following steps that 1, materials are prepared, and the materials comprise high temperature vulcanized rubber, nano zinc oxide, nanosilicon dioxide and a modifier; 2, the vulcanized rubber is placed into a mixing furnace capable of heating, and heating is conducted to 200 DEG C; 3, nano zinc oxide is added and stirred for 10 min; 4, nanosilicon dioxide is added and stirred for 5 min; 5, the modifier is added and stirred for 30 min; 6, the well stirred rubber is poured into a four-roll calender for molding, and a rubber sleeve which is 10-20 mm thick and 300-600 mm long is obtained. The vulcanized rubber is prepared from 78 kg of rubber raw materials, 10 kg of 800-mesh alkali-free glass fiber powder, 6 kg of sulfur, 1 kg of a vulcanization accelerator, 2 kg of phenolic resin powder and 1 kg of hard carbon black. The highway protective fence rubber protective cover is low in cost and resistant to corrosion. The preparation technology is simple in process, low in equipment requirement and high in operability.

Description

Technical field [0001] The invention relates to the field of chemical engineering, and more specifically to a method for preparing a rubber protective sleeve for a highway guardrail Background technique [0002] The existing highway guardrail is the main form of semi-rigid guardrail, mostly formed by bending metal materials. It is a continuous structure in which corrugated steel guardrail panels are spliced ​​with each other and supported by main pillars. When a vehicle collides with it, because the corrugated steel guardrail has good crash resistance and energy absorption, it is not easy to crash, and at the same time it can protect the drivers and passengers. The products are divided into double waveforms (length 4320MM, width 310MM, wave depth 85MM, plate thickness 3-4MM) and three waveforms (length 4320MM, width 506MM, wave depth 85MM, plate thickness 3-4MM). It turns out that the traditional highway The barrier is still very easy to be hit by a car, especially in the proces...

AI Technical Summary

Problems solved by technology

Products are divided into double waveform (length 4320MM, width 310MM, wave depth 85MM, thickness 3-4MM) and triple waveform (length 4320MM, width 506MM, wave depth 85MM, thickness 3-4MM). The guardrail is still easy to be crashed by the car, especially in the process of collision, sparks will be generated, which will cause serious damage to the car and cause casualties due to the burning of the car. Most of the traffic accidents are caused by the crash of the highway guardrail. It is very necessary to add a 20-30 mm thick rubber or EVA foam rubber sleeve on the basis of not increasing too much cost, which can be directly placed on the surface of the corrugated board, which can play the role of cushioning and anti-collision. It is not easy to crash the guardrail, but also enhances the safety protection effect of the driver and passengers, and will not generate sparks, so as to eliminate the problem of collision and combustion, and greatly improve the safety factor

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