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Continuous high-strength ultra-thick fiber thermoplastic impregnating material device and preparation method

A continuous fiber, ultra-thick technology, applied in the field of equipment and preparation of high-strength and ultra-thick continuous fiber reinforced thermoplastic composite materials, can solve the problem of uncontrollable content of the upper and lower layers, unstable prepreg strength, and waste of space layout, etc. problems, to achieve the effect of reducing the number of layers used, simplifying the production process, and improving the utilization rate of the equipment

Inactive Publication Date: 2016-06-01
JIANGSU QIYI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is that the content of the upper and lower layers cannot be controlled, resulting in unstable interlayer strength of the prepreg tape
Moreover, due to the double-extrusion system used in the design process, it causes a large investment in equipment and a waste of space layout

Method used

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  • Continuous high-strength ultra-thick fiber thermoplastic impregnating material device and preparation method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Preparation of fiber composite tapes with a thickness of 0.1~0.6mm: by figure 1 It is known that the equipment for high-strength and ultra-thick continuous fiber thermoplastic impregnated materials consists of yarn unwinding mechanism 1, damping roller 2, oven 3, tensioning mechanism 4, extrusion mechanism 5, pre-coating mechanism 6, preheating mechanism 7, upper layer Unwinding mechanism 8, dipping and heat recovery mechanism 9, cooling and setting mechanism 10, tractor 11, slitting and winding mechanism 12, preheating mechanism 7, upper layer unwinding mechanism 8 are connected in parallel with pre-coating mechanism 6 and dipping and heat recovery mechanism between 9. The 0.1~0.6mm continuous fiber is evenly unfolded by the yarn unwinding mechanism 1, the damping roller 2, the oven 3, and the tensioning mechanism 4, and then merges with the plastic extruded by the extrusion mechanism 5, and then passes through the pre-coating mechanism 6, dipping and heat-recovering ...

Embodiment 2

[0023] Preparation of fiber composite tapes with a thickness of 0.5-1.2 mm: In this embodiment, high-strength and ultra-thick continuous fiber-reinforced thermoplastic composite materials can also be produced, and the fiber composite tapes of 0.1-0.6 mm are preheated by the preheating mechanism 7 in the upper unwinding mechanism 8. After heating, introduce the impregnated heat-recovering mechanism 9 and heat-press to form a whole to obtain a fiber composite tape with a thickness of 0.5~1.2mm. When unwinding, the constant tension system tightens the upper layer of the fiber composite tape, avoiding the loss of performance caused by fiber relaxation. The preheating temperature of the preheating mechanism 7 can be adjusted arbitrarily according to the thickness of the first layer of fiber composite tape, so as to fully provide the heat between the hot pressing layers. The cooling mechanism 10 adopts a pressure-holding type steel belt for cooling, and the cooling temperature is ind...

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Abstract

The invention relates to a continuous high-strength ultra-thick fiber thermoplastic impregnating material device and a preparation process. The device is formed by sequentially cascading a yarn releasing mechanism (1), a baking oven (3), a tensioning mechanism (4), an extruding mechanism (5), a pre-coating mechanism (6), an impregnating hot bonding mechanism (9), a cooling shaping mechanism (10) and a cutting winding mechanism (12), and is characterized in that a preheating mechanism (7) and an upper layer unwinding mechanism (8) are arranged between the pre-coating mechanism (6) and the impregnating hot bonding mechanism (9) in a parallel connection manner, the impregnating hot bonding mechanism (9) consists of 2 to 4 groups of circular rolls, and the surface temperature of each circular roll is 180 to 300 DEG C. By adopting the device and the preparation process, the random matching of products identical in content and width and different in thickness can be realized, a fiber composite belt with the thickness of 0.6mm to 1.2mm can be produced, and the ultra thickness of the belt material is realized on the premise of guaranteeing the physical performance of the fiber composite belt.

Description

technical field [0001] The invention relates to the field of thermoplastic continuous fiber impregnated materials, in particular to equipment and a preparation method for high-strength and ultra-thick continuous fiber-reinforced thermoplastic composite materials. Background technique [0002] Continuous fiber reinforced thermoplastic composites have excellent physical and mechanical properties and more processing methods than traditional short and long fiber materials. At the same time, it is more environmentally friendly than thermosetting materials, and is widely used in military and civilian transportation, aviation, petrochemical, sports equipment, building materials and other fields. Realized the replacement of steel with plastic, making the product light and high-strength, reducing the energy consumed in the production of raw materials, and reducing the pressure on the environment caused by thermosetting composite materials that cannot be recycled. Especially in recen...

Claims

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Application Information

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IPC IPC(8): B32B37/10B32B37/06B32B37/08B32B38/00B32B38/08B32B43/00
CPCB32B37/10B32B37/0053B32B37/06B32B37/08B32B38/0036B32B38/08B32B43/003
Inventor 朱华平沈国兵沃晓剑
Owner JIANGSU QIYI TECH