Production process of engineering fibre for polyester road

An engineering fiber and production process technology, which is applied in the high-performance asphalt reinforced mixed material-polyester road engineering fiber and its production field, can solve the problems such as not involving polyester fiber, achieve simple and convenient operation, improve strength and Service life, the effect of prolonging life

Inactive Publication Date: 2004-01-14
陈成泗 +2
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  • Summary
  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, from the currently known polyester fiber production technology and the polyester fiber developed in the field of textile applications, none of them involve the application of polyester fiber in the field of construction engineering, that is, the production method of new building material fibers.

Method used

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  • Production process of engineering fibre for polyester road

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] The process parameters of the pre-spinning part are as follows:

[0028] ①Drying requirements for polyester raw materials, dry moisture content less than 0.2‰, viscosity-increasing intrinsic viscosity above 0.8.

[0029] ②Screw melt extrusion temperature and speed: screw heating zone 1 is 300°C, zone 2 is 320°C, zone 3 is 345°C, zone 4 is 365°C, zone 5 is 350°C, zone 6 is 345°C. The screw extrusion force is 80 kilograms, and the speed is 65 rpm.

[0030] ③ Melt filtration adopts 220-mesh filter element, metering pump 10CC / 40 rpm, spinneret Φ0.5 / 600 holes, and the cooling wind speed of the ring blowpipe is 0.4 seconds. The air temperature is 18℃~22℃, and the winding speed is 650m / min.

[0031] The post-understretching production process parameters are as follows:

[0032] ①It is more appropriate for the formed noodle silk to be bundled at 600,000 to 700,000 deniers after stretching.

[0033] ②The temperature of the hot oil tank is 85℃~90℃, and the concentration of oi...

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Abstract

A process for preparing the polyester fibres used for road engineering includes such steps as pretreating the polyester as raw material, fusing and extruding by screw extruder, jet spinning, cooling, prestretching, winding, collecting to 6-7 hundred thousands dens, tension mixing, stretching in oil bath, stretching, adding hot activator, stretching, adding hot activator, overheat stretching, extension, compression, drying and cutting short.

Description

Technical field: [0001] The invention relates to a new pavement material used for road construction, in particular to a high-performance asphalt-reinforced mixed material—polyester road-use engineering fiber and a production method thereof. Background technique: [0002] As early as the 1970s, the American Kapejo Company first successfully developed BoniFiber (Boniwei) road engineering fiber (also known as polyester staple fiber, PET road staple fiber). It can improve the high-temperature stability and fatigue durability of asphalt pavement, prolong the service life of asphalt pavement, and has been widely used in many countries in Europe and America. With the rapid development of my country's national economy, in order to improve the engineering quality of asphalt pavement, in recent years, American Boniwei road fiber has been introduced and added to the asphalt mixture. So far, there have been hundreds of projects in the country to build high-quality asphalt roads and bri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00D01F6/62
Inventor 陈成泗张宝康胡开波陈建锋李泉荣马永梅陆仕祥陈孟群周银环
Owner 陈成泗
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