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Method and equipment for manufacturing composite fiber containing continuous glass fiber

A glass fiber and composite fiber technology, applied in glass manufacturing equipment, manufacturing tools, glass production, etc., can solve the problems of low glass fiber content, high cost, and large quality fluctuations, and achieve strong bonding performance and good film-forming performance , the effect of uniform tension

Inactive Publication Date: 2011-06-15
JUSHI GRP CO
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The initial glass fiber reinforced thermoplastic resin composition is mixed and extruded with glass fiber chopped strands and thermoplastic resin particles, and then injection molded. This method is also called the SFT process. Its main disadvantages are: the glass fiber content is relatively low, and Due to the low effective residual length of the fiber during extrusion and injection molding, the mechanical properties of the final product are not high
In the above forming method, both glass fiber and chemical fiber are drawn on-line, and the process problems in any fiber drawing process will affect the final forming stability of the composite fiber, so the forming of the composite fiber will be complicated; and the glass There are large structural differences between fiber and chemical fiber drawing production lines, and the combined use of the two will also increase the difficulty of assembly of the composite fiber production line
In addition, due to the huge difference in the thermal shrinkage properties of glass fibers and chemical fibers, the dried composite fiber yarn clusters will become fluffy due to the large shrinkage of chemical fibers, resulting in unstable yarn cluster structure and difficult yarn delysis
In order to solve this problem, the above-mentioned patents respectively adopt the methods of overfeeding chemical fibers to form curls and high-temperature heat setting to reduce the shrinkage of chemical fibers to reduce the impact of chemical fiber shrinkage on the stable structure of yarn clusters, but the controllability is not good, the quality fluctuates greatly, and Complex equipment and high cost

Method used

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  • Method and equipment for manufacturing composite fiber containing continuous glass fiber
  • Method and equipment for manufacturing composite fiber containing continuous glass fiber

Examples

Experimental program
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Effect test

Embodiment 1

[0026] refer to figure 1 , a composite fiber manufacturing method containing continuous glass fiber, the composite fiber is formed by mixing offline polyester and online continuous glass fiber, the glass fiber is drawn online, the polyester is a finished yarn, and multiple bundles of different yarn feed angles The polyester is pulled and the tension is adjusted and then converged into a sheet, and the converged polyester tow is separated and compounded with the glass fiber treated with the sizing agent.

[0027]The polyester draws at the same speed as the fiberglass.

[0028] The glass fiber is compounded with one or more kinds of polyester, and the mass ratio of the glass fiber to the polyester is 85:15-10:90.

[0029] The boiling water shrinkage of the polyester is within 3%, the yarn feeding angle is between 0° and 60°, and the adjusted tension is between 15 and 300CN.

[0030] In the manufacturing method of composite fibers containing continuous glass fibers according to...

example

[0035] 1. Using 7 polyester yarn balls with a linear density of 333dtex as the source of polyester, the shrinkage in boiling water was 1.4%. The yarn feeding angle of the chemical fiber is at most 20°, and the tension value of the chemical fiber after passing through the tensioner 3 is between 25 and 45CN. After obtaining the yarn clusters of composite fibers according to the method and equipment of the present invention, the final composite fiber product is obtained after drying at a high temperature of 122° C. for 18 hours. The linear density is 800 tex, the ratio of glass fiber to polyester is 70:30, and the water 0.05%.

[0036] The obtained composite fiber is woven into a unidirectional fabric by using a warp knitting machine, and the weft yarn is also polyester, and then the multi-layered unidirectional fabric is pressed on a hot press to form a unidirectional glass fiber-reinforced PET thermoplastic resin composite material, and its mechanical properties are shown in ...

Embodiment 2

[0043] refer to figure 1 , special equipment for the composite fiber manufacturing method containing continuous glass fibers, including a glass fiber drawing device that pulls the glass liquid into glass fibers, an oiling roller 7 coated with a sizing, a composite device 8, cluster wheel 9, wire drawing machine 10, and also includes a multi-layer creel 1 for placing polyester yarn clusters 2, behind which creel 1 is provided with a tensioner 3 for adjusting the tension of polyester yarn and a rectifier for converging polyester yarn 4. A separator 5 for dispersing polyester yarn bundles, said separator 5 is located above the compounder 8 .

[0044] The tensioner 3 is a liquid damping compensation tensioner, including a base, a wire inlet plate, a compensation component, an adjustment rod and a dial.

[0045] The separator 5 is a porous plate with a plurality of ceramic holes evenly distributed.

[0046] The compounder 8 is a phenolic resin plate with a notch.

[0047] The te...

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Abstract

The invention relates to a method for manufacturing a composite fiber containing a continuous glass fiber. The composite fiber is formed by mutually mixing offline terylene and an online continuous glass fiber; the glass fiber is drawn on line, and the terylene is finished yarn; a plurality of bundles of terylene with different yarn feed angles are drawn to be converged into sheet shapes after being subjected to tension adjustment; and the converged terylene yarn bundles are separated and then compounded with the glass fiber processed with an impregnating compound. The invention has the advantages of simplified process equipment and improved production smoothness; and meanwhile, the introduction of chemical fiber yarn-feed tension adjustment ensures that better practicability and better effect on the baked yarn clew moulding effect are achieved.

Description

technical field [0001] The invention relates to a manufacturing method and equipment for composite fibers containing continuous glass fibers. Background technique [0002] Due to the characteristics of light weight, high strength, electrical insulation and corrosion resistance, the composite materials of glass fiber reinforced resin matrix are widely used in the fields of automobile, aerospace and national defense. In particular, glass fiber reinforced thermoplastic resin matrix composites have developed rapidly in recent years due to their excellent impact toughness, easy repair, secondary molding, and recyclability, gradually replacing some applications of traditional thermosetting resin matrix composites. field. The development of glass fiber reinforced thermoplastic resin matrix composites will provide an excellent alternative to traditional metal materials with light weight and high strength. [0003] The initial glass fiber reinforced thermoplastic resin composition ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D02G3/18C03B37/022D02G3/04
CPCY02P40/57
Inventor 张毓强曹国荣张志坚龚颖卢志强钱宇卿
Owner JUSHI GRP CO
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