CN101149452A

CN101149452A - Non-metal reinforcement member

Info

Publication number: CN101149452A
Application number: CNA2007101699545A
Authority: CN
Inventors: 龚建良
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-11-08
Filing date: 2007-11-08
Publication date: 2008-03-26

Abstract

This invention relates to a kind of nonmetal reinforcement, it is composed of high strength gauze, the felt layer and the plastic layer. The high strength gauze and the felt layer are in the plastic layer, the high strength gauze is between the felt layer, the cross section of the reinforcement is circle or ellipse, the thickness of the plastic layer is 0.2mm-120mm, the high strength gauze is the line or net has at least one section of fiber glass, aryl gauze, PBO (Poly-para-benzoquinone benzodiazole) or at least one fiber glass, aryl gauze, PBO (Poly-para-benzoquinone benzodiazole). This invention can reach the high stretch-proof request to the nonmetal optical fiber cable in exist technology in the situation that not increase even reduce the size of exist optical fiber cable, so it can save the cost of optical fiber cable, save the space, solves the idea that people want to solve but never gain success.

Description

A kind of non-metal reinforcement member

Technical field

The present invention relates to the optical cable reinforcement material, relate in particular to a kind of non-metal reinforcement member that optical cable is used.

Background technology

In the prior art, non-metallic optical fiber cables adopts the tubular FRP (glass fiber reinforced plastics) of rigidity usually, non-metal reinforcing band is as its reinforcement, its structure is a layer-twisted type, skeleton or central beam tube type, because the continuous development of electric utility, therefore, require optical cable can carry enough tensile forces, optical cable could be used on the adjacent iron tower or electric pole of span of regulation, because the stretching die quantitative limitation of FRP at present, for this reason, optical cable manufacturing firm has to strengthen the size of reinforcement, perhaps outside optical cable core, set up external fiber in addition, enhancement Layers such as virtue human relations, like this, strengthen the external diameter of optical cable virtually, increased the material consumption of optical cable.

Summary of the invention

Technical matters to be solved by this invention is: do not increasing even can dwindle under the situation of existing cable size, still can reach in the present technology, to the requirement of non-metallic optical fiber cables high anti-drawing pressure, thereby save the optical cable cost, solve the above-mentioned idea that people thirst for solving and never succeed.

The present invention addresses the above problem the technical scheme that is adopted to provide a kind of non-metal reinforcement member, and described non-metal reinforcement member is made of high strength yarn, tack coat and extrusion molding layer.Wherein, described high strength yarn and tack coat are distributed in the extrusion molding layer, and described high strength yarn is distributed between the tack coat, and the xsect of described reinforcement is rounded or oval, and described extrusion molding layer thickness is between 0.2mm-120mm.

Described high strength yarn is sub-thread glass fiber or sub-thread virtue human relations yarn or sub-thread PBO (Poly-p-phenylene benzobisthiazole), preferably fragrant human relations yarn.

Described high strength yarn only has 1, and it is to mix rope that twists into or the net that is twisted into, preferably fragrant human relations rope with multiply glass fiber, fragrant human relations yarn, PBO (Poly-p-phenylene benzobisthiazole) or above-mentioned two kinds or above above-mentioned material.

Described high strength yarn is the yarn that is distributed in the glass fiber in the extrusion molding layer, fragrant human relations yarn, PBO (Poly-p-phenylene benzobisthiazole) or above-mentioned two kinds or above mixing more than 2 or 2, preferably commaterial.

Described tack coat is to be formed by the long glass fibre of 0.001mm-5mm, adhesive, hot melt adhesive bonding; Tackifier according to chemical composition, can be inorganic, also can be organically, and is preferably organic; Can be natural, also can synthesize, preferably synthetic; Can be resin type, also can be rubber-type or compound; Can be thermoplastic, also can be heat cured, also can be their mixing.

Material at described extrusion molding layer is plastics such as high density polyethylene, medium density polyethylene, low density polyethylene, polypropylene, PVC.

Described tack coat can be and extrusion molding layer identical materials.

When described reinforcement was circular, its external diameter was 0.3mm-200mm.

Principle of work of the present invention is: in layer-twisted type or slotted core cable processing, non-metal reinforcement member of the present invention is directly substituted existing reinforcement, do not need outside stranded cable core, to add external enhancement Layer more in addition, can meet or exceed of the requirement of prior art standard the non-metallic optical fiber cables tensile resistence.The present invention and prior art compare, and its effect is actively with tangible.The outdoor optical cable that utilizes the present invention to produce, its structure can be that central beam tube type also can be a layer-twisted type and skeleton, and its kind belongs to non-metallic optical fiber cables, be the optical cable of 3000N pulling force equally, its external diameter can be reduced by at least 2mm, weight saving 35%, cost has reduced by 28%.In addition, compare with conventional cable, because of bending property, the softness of reinforcement better; So may reach littler bending radius, under the situation that the reinforcement accident is lost, still can guarantee the pulling force characteristic of optical cable.

Description of drawings

Fig. 1 is the cross section structure synoptic diagram of a kind of non-metal reinforcement member embodiment 1 of the present invention.

Fig. 2 is the cross section structure synoptic diagram of a kind of non-metal reinforcement member embodiment 2 of the present invention.

Fig. 3 is the cross section structure synoptic diagram of a kind of non-metal reinforcement member embodiment 3 of the present invention.

Fig. 4 is the cross section structure synoptic diagram of a kind of non-metal reinforcement member embodiment 4 of the present invention.

Embodiment

Below, be described with reference to the accompanying drawings preferred embodiment of the present invention.

Embodiment 1

See Fig. 1 for details, among the figure, 1 is tack coat, and 2 is the extrusion molding layer, and 3 is the high strength yarn.Wherein, high strength yarn 3 and tack coat 1 are distributed in the extrusion molding layer 2, and high strength yarn 3 is distributed between the tack coat 1, the xsect of whole reinforcement is rounded, and high strength yarn 3 adopts sub-thread virtue human relations yarn, and its external diameter is 0.3mm, the extrusion molding layer thickness is 0.85mm, and the external diameter of whole reinforcement is 2.0mm.Tack coat 1 is to be formed by the long glass fibre of 0.3mm-2.1mm, adhesive, hot melt adhesive bonding; Tackifier synthetic resin type, the material of extrusion molding layer 2 are the true qualities medium density polyethylene, and high strength yarn 3 is positioned at the center of extrusion molding layer 2.

Certainly, tack coat 1 can be to be formed by the long glass fibre of 0.001mm-5mm, adhesive, hot melt adhesive bonding; Tackifier according to chemical composition, can be inorganic, also can be organically, and is preferably organic; Can be natural, also can synthesize, preferably synthetic; Can be resin type, also can be rubber-type or compound; Can be thermoplastic, also can be heat cured, also can be their mixing.

Certainly, tack coat 1 can be and extrusion molding layer 2 identical materials.

The material of extrusion molding layer 2 can be that plastics such as high density polyethylene, medium density polyethylene, low density polyethylene, polypropylene, PVC or two or more plastics mix.

High strength yarn 3 is sub-thread glass fiber or sub-thread virtue human relations yarn or sub-thread PBO (Poly-p-phenylene benzobisthiazole), preferably fragrant human relations yarn.

Certainly, high strength yarn 3 preferably places the center of extrusion molding layer 2, also can depart from the center of extrusion molding layer 2, as long as in extrusion molding layer 2.

The optical cable that adopts the present embodiment reinforcement to make compares with prior art, and its effect is actively with tangible.The outdoor optical cable that utilizes the present embodiment reinforcement to make, its structure can be that central beam tube type also can be a layer-twisted type and skeleton, and its kind belongs to non-metallic optical fiber cables, be the optical cable of 3000N pulling force equally, its external diameter can be reduced by at least 2mm, weight saving 35%, cost has reduced by 28%.In addition, compare with conventional cable, because of bending property, the softness of reinforcement better; So may reach littler bending radius, under the situation that the reinforcement accident is lost, still can guarantee the pulling force characteristic of optical cable.

Embodiment 2

See Fig. 2 for details, substantially with embodiment 1, just the high strength yarn 3 among this embodiment is to have synthesized fragrant human relations rope by 7 strands of fragrant human relations skeins, and its intensity is higher.

Embodiment 3

See Fig. 3 for details, substantially with embodiment 1, just the high strength yarn 3 among this embodiment is to be distributed in the extrusion molding layer 2 by 6 strands of glass fibers, and its intensity is higher.

Certainly, having the yarn of 2 or 2 above glass fibers, fragrant human relations yarn, PBO (Poly-p-phenylene benzobisthiazole) or above-mentioned two kinds or above mixing to be distributed in situation in the extrusion molding layer 2, also should be the scope of protection of the invention.

Embodiment 4

See Fig. 4 for details, substantially with embodiment 2, just the high strength yarn 3 among this embodiment is the ropes that are twisted into by more PBO (Poly-p-phenylene benzobisthiazole), and its intensity is higher.

Claims

1. non-metal reinforcement member, constitute by high strength yarn, tack coat and extrusion molding layer, it is characterized in that: described high strength yarn and tack coat are distributed in the extrusion molding layer, described high strength yarn is distributed between the tack coat, the xsect of described reinforcement is rounded or oval, and described extrusion molding layer thickness is between 0.2mm-120mm.

2. non-metal reinforcement member according to claim 1 is characterized in that: described high strength yarn is sub-thread glass fiber or sub-thread virtue human relations yarn or sub-thread PBO (Poly-p-phenylene benzobisthiazole).

3. non-metal reinforcement member according to claim 1, it is characterized in that: described high strength yarn only has 1, and it is to mix rope that twists into or the net that is twisted into multiply glass fiber, fragrant human relations yarn, PBO (Poly-p-phenylene benzobisthiazole) or above-mentioned two kinds or above above-mentioned material.

4. non-metal reinforcement member according to claim 1 is characterized in that: described high strength yarn is the yarn that is distributed in the glass fiber in the extrusion molding layer, fragrant human relations yarn, PBO (Poly-p-phenylene benzobisthiazole) or above-mentioned two kinds or above mixing more than 2 or 2.

5. non-metal reinforcement member according to claim 1 is characterized in that: described tack coat is to be formed by the long glass fibre of 0.001mm-5mm, adhesive, hot melt adhesive bonding.

6. non-metal reinforcement member according to claim 1 is characterized in that: the material at described extrusion molding layer is plastics such as high density polyethylene, medium density polyethylene, low density polyethylene, polypropylene, PVC.

7. non-metal reinforcement member according to claim 1 is characterized in that: described tack coat can be and extrusion molding layer identical materials.

8. non-metal reinforcement member according to claim 1 is characterized in that: when described reinforcement was circular, its external diameter was 0.3mm-200mm.