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Temporary flexible anti-glare panel for highway construction

An anti-glare board and flexible technology, applied in the field of temporary flexible anti-glare boards for highway construction, can solve the problems of short service life, easy to break, heavy weight, etc., and achieve long service life, good elasticity and deformation recovery rate, and light weight. Effect

Active Publication Date: 2019-08-09
ANHUI TRANSPORTATION HLDG GRP CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although steel anti-glare panels are reliable in strength, they are heavy and costly. Although plastic anti-glare panels are light in weight, they are easy to break under the action of external forces such as strong winds and have a short service life.

Method used

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  • Temporary flexible anti-glare panel for highway construction

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Preparation of flexible anti-glare board for temporary use in highway construction

[0024] The anti-glare board of this embodiment is made of the following raw materials in parts by weight: ethylene-vinyl acetate copolymer 99, EPDM 0.2, natural rubber 0.45, zinc chloride 0.15, color master 0.2, anti-ultraviolet modifier 0.01, and anti-ultraviolet modifier It is 2,4-dihydroxybenzophenone; the specific preparation method includes the following steps:

[0025] (1) Under the condition of 260℃, plasticize the ethylene-vinyl acetate copolymer under high pressure (2.6MPa) to obtain a plasticized ethylene-vinyl acetate copolymer, and then add color masterbatch to the plasticized ethylene-vinyl acetate copolymer. Mix well, then add EPDM, mix well, and finally add natural rubber, zinc chloride and anti-ultraviolet modifier, mix well to obtain a premix;

[0026] (2) Squeeze the premix into the molding die of the EVA foam molding equipment. The pressure between the inner mold and the ou...

Embodiment 2

[0029] Preparation of flexible anti-glare board for temporary use in highway construction

[0030] The anti-glare board in this embodiment is made of the following raw materials in parts by weight: ethylene-vinyl acetate copolymer 98.5, EPDM0.15, natural rubber 0.4, zinc chloride 0.13, color master 0.15, anti-ultraviolet modifier 0.015, anti-ultraviolet modified The agent is 2-(2'-hydroxy-5'-methylphenyl)benzotriazole; the specific preparation method includes the following steps:

[0031] (1) Under 240℃, plasticize the ethylene-vinyl acetate copolymer under high pressure (2.8MPa) to obtain a plasticized ethylene-vinyl acetate copolymer, and then add color masterbatch to the plasticized ethylene-vinyl acetate copolymer. Mix well, then add EPDM, mix well, and finally add natural rubber, zinc chloride and anti-ultraviolet modifier, mix well to obtain a premix;

[0032] (2) Squeeze the premix into the molding die of the EVA foam molding equipment. The pressure between the inner mold and...

Embodiment 3

[0035] Preparation of flexible anti-glare board for temporary use in highway construction

[0036] The anti-glare board of this embodiment is made of the following raw materials in parts by weight: ethylene-vinyl acetate copolymer 99.5, EPDM 0.25, natural rubber 0.5, zinc chloride 0.17, color master 0.25, anti-ultraviolet modifier 0.02, anti-ultraviolet modified The agent is 2,4-dihydroxybenzophenone; the specific preparation method includes the following steps:

[0037] (1) Under the condition of 280℃, plasticize the ethylene-vinyl acetate copolymer under high pressure (2.4MPa) to obtain a plasticized ethylene-vinyl acetate copolymer, and then add color masterbatch to the plasticized ethylene-vinyl acetate copolymer. Mix well, then add EPDM, mix well, and finally add natural rubber, zinc chloride and anti-ultraviolet modifier, mix well to obtain a premix;

[0038] (2) Squeeze the premix into the molding die of the EVA foam molding equipment. The pressure between the inner mold and ...

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Abstract

The invention discloses a temporary flexible anti-glare panel for highway construction. The temporary flexible anti-glare panel is prepared from, by weight, 98.5-99.5 parts of an ethylene-vinyl acetate copolymer, 0.15-0.25 part of EPDM, 0.4-0.5 part of natural rubber, 0.13-0.17 part of zinc chloride, 0.01-0.02 part of an anti-ultraviolet modifying agent and 0.15-0.25 part of color master batch. The anti-glare panel is low in weight, low in cost, easy to form, green, environmentally friendly, very high in elasticity and deformation recovery rate, not prone to fracture, long in service life andvery high in ageing resistance, and moreover, the flexible anti-glare panel is high in tensile strength and crushing strength, resistant to low temperature, high temperature, crushing, bending, wind resistance and soaking, and capable of ensuring outdoor using conditions and being used as a highway safety protection measure. When used in new building, rebuilding and extension of highway construction, the flexible anti-glare panel is high in anti-breaking performance.

Description

Technical field [0001] The invention relates to highway facilities, in particular to a flexible anti-glare board for temporary use in highway construction. Background technique [0002] The anti-glare board is a kind of traffic safety product manufactured and installed on the central separation belt of the expressway to solve the glare of the facing car lights. Most of them are installed on the guardrail or between the guardrails of the central separation belt of the expressway, and some are arranged on the movable guardrail of the central opening. The materials are divided into steel anti-glare boards, plastic anti-glare boards, etc. [0003] Although the steel anti-glare board is reliable in strength, it is heavy in quality and high in cost. Although the plastic anti-glare board is light in weight, it is easy to break under strong wind and other external forces and has a short service life. Summary of the invention [0004] The technical problem to be solved by the present invent...

Claims

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Application Information

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IPC IPC(8): C08L23/08C08L23/16C08L7/00C08K3/16C08K5/3475C08K5/132
CPCC08K2003/168C08L23/0853C08L2205/03C08L23/16C08L7/00C08K3/16C08K5/3475C08K5/132
Inventor 朱文海吴忠广朱进孙平张宇陈宗伟许在健李娟张涛徐世荣
Owner ANHUI TRANSPORTATION HLDG GRP CO LTD