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Expressway security protection fence and preparation method thereof

A highway and safety protection technology, which is applied in the field of traffic safety, can solve the problems of low friction coefficient, insufficient dimensional stability, and large hygroscopicity, and achieve the effects of low friction coefficient, eliminating collision and burning problems, and low cost

Inactive Publication Date: 2017-05-24
IDEAL NEW MATERIAL TECH HONGKONG LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Nylon 6 is also called PA6, polyamide 6; Nylon 66 has high fatigue strength and rigidity, good heat resistance, low friction coefficient, good wear resistance, but high moisture absorption and insufficient dimensional stability

Method used

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  • Expressway security protection fence and preparation method thereof
  • Expressway security protection fence and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0046] refer to figure 1 , the present invention comprises the following synthetic steps:

[0047] Modification of nylon: 40-60 parts of nylon material is placed in the hopper of the twin-screw granulator; 1-2 parts of carbon fiber, 30-40 parts of glass fiber, 4-6 parts of basalt fiber and 2-3 parts The mixed material of Kevlar fiber is placed on the creel; the mixture of carbon fiber, glass fiber, basalt fiber and Kevlar fiber is drawn into the screw granulator for granulation with nylon;

[0048] Extrusion molding: Design double-corrugated and triple-corrugated extrusion dies according to the requirements of the guardrail; place the modified composite nylon material in the hopper of the extruder; use a tractor to pull the formed guardrail to the cooling tank; use Wear-resistant diamond saw, cut the fence according to the required length.

[0049] In this embodiment, in the modification process of nylon, there are various options for the addition ratio of specific raw mater...

no. 2 example

[0054] refer to figure 2 , the present invention comprises the following synthetic steps:

[0055] Modification of PU material: put 40-60 parts of nylon material in the hopper of the twin-screw granulator; 1-2 parts of carbon fiber, 30-40 parts of glass fiber, 4-6 parts of basalt fiber and 2-3 The mixed material of Kevlar fiber is placed on the creel; the mixture of carbon fiber, glass fiber, basalt fiber and Kevlar fiber is drawn into the screw granulator for granulation with PU material;

[0056] Extrusion molding: design double-corrugated and triple-corrugated extrusion dies according to the requirements of the guardrail; place the modified composite PU material in the hopper of the extruder; use a tractor to pull the formed guardrail to the cooling tank; Use a wear-resistant diamond saw to cut the fence to the required length.

[0057] In this embodiment, in the process of modifying the PU material, the ratio of specific raw materials to be added includes various option...

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Abstract

The invention discloses an expressway security protection fence and a preparation method thereof. The expressway security protection fence comprises the following components in parts by weight: 40-60 parts of nylon, 1-2 parts of carbon fiber, 30-40 parts of glass fiber, 4-6 parts of basalt fiber and 2-3 parts of Kevlar fiber. Nylon is relatively high in fatigue strength and rigidity, relatively good in thermal resistance, low in friction coefficient and good in wearing resistance, and the four high polymer composite materials, namely, the carbon fiber, the glass fiber, the basalt fiber and the Kevlar fiber, have elasticity and toughness and very high strength as well, so that functions of buffer and collision breakage prevention can be achieved, the fence is not easily damaged by collision of automobiles, damage of the automobiles can be also reduced, and a relatively good security protection function can be also achieved for drivers and passengers; and furthermore, no spark can be generated, so that the problem of collision combustion can be avoided, and the security coefficient can be greatly increased.

Description

technical field [0001] The invention relates to the technical field of traffic safety, in particular to a highway safety guardrail and a preparation method thereof. Background technique [0002] Most of the existing highway guardrails are formed by bending metal materials, which are continuous structures spliced ​​with corrugated steel guardrails and supported by main pillars. When the vehicle collides with it, because the corrugated steel guardrail has good crashworthiness and energy absorption effect, it can effectively prevent crashes, and at the same time, it can play a certain role in safety protection for drivers and passengers. Facts have proved that the traditional highway guardrails are still easy to be crashed by cars, especially in the process of collision, sparks will be generated, causing serious car damage and car burning, causing casualties. Most of the traffic accidents are caused by highway protection. caused by the bar being crashed. The existing highway ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/02C08L77/06C08L77/10C08L75/04C08K7/06C08K7/14C08K7/10E01F15/02
CPCC08L77/02C08L75/04C08L77/06C08L2201/02C08L2205/02C08L2205/03C08L2205/16E01F15/02C08L77/10C08K7/06C08K7/14C08K7/10
Inventor 何新桥
Owner IDEAL NEW MATERIAL TECH HONGKONG LTD