Formula of novel flexible anti-collision guardrail and preparation method thereof

Abstract

The invention relates to a formula of a novel flexible anti-collision guardrail and a preparation method thereof. The formula consists of 0.2%-0.25% of UV, 0.07%-0.09% of 316A, 3%-3.2% of Caco3, 9% -10% of PE-C, 1.5% -1.6% of GH-09, 1.5% -1.6% of AC-R4, 0.4%-0.5% of PE, 75%-80% of PVC, 1.5%-1.6% of Ti02 and 4%-5% of H-828. The preparation method comprises of mixing, stirring, extruding under heating, vacuum forming, and cooling. The flexible anti-collision guardrail disclosed by the invention has characteristics of high strength and high toughness. In order to simplify the production process, relatively inexpensive modified PVC polymer materials are used to reduce costs, the guardrail is safer and easier to be installed and maintained and energy is saved. The guardrail disclosed by the invention is 'M'-modified PVC extrusion profile. The force deformation mechanism is changed by strengthening the rigidity of the whole guardrail, thereby achieving anti-collision purposes.

Description

technical field [0001] The invention relates to a road safety anti-collision guardrail in the traffic industry, in particular to a formula and a preparation method of a novel flexible anti-collision guardrail. Background technique [0002] At present, the highway anti-collision guardrail is the most important traffic infrastructure. The highway in our country was developed in the 1980s, and it plays an important role in the development of the national economy and society. It is an important maintenance and safety guarantee facility for expressways. [0003] The existing anti-collision guardrails of highways are usually made of steel plates, which are easy to dent, mostly in a single gray color, monotonous in shape, generally shock-absorbing, require regular maintenance, difficult to construct, and costly; moreover, steel production consumes a lot of energy. energy, not environmentally friendly. Moreover, the steel plate is easy to oxidize and embroider, which is easy to sc...

AI Technical Summary

Problems solved by technology

[0003] The existing anti-collision guardrails of highways are usually made of steel plates, which are easy to dent, mostly in a single gray color, monotonous in shape, generally shock-absorbing, require regular maintenance, difficult to construct, and costly; moreover, steel production consumes a lot of energy. energy, not environmentally friendly

Moreover, the steel plate is easy to oxidize and embroider, which is easy to scratch the car, and the production cost is relatively high; the light impact force is easy to cause the guardrail to deform, and the production process is prone to pollution

Although the elastic reflective warning guardrail in the prior art adopts polymer materials such as ABS and PC, and is designed with buffer clips, reflective safety buttons and reflective strips, the materials are relatively expensive, resulting in high cost; the production process mostly uses injection molding , the investment cost is high; in addition, when the vehicle collides with the guardrail, the impact energy is mainly transmitted and consumed through the wave guardrail, and there are still potential safety hazards for large-tonnage vehicles (greater than 10 tons)