JPH0834082A - Multilayered fluoroplastic pipe - Google Patents

Abstract

PURPOSE:To obtain a multilayered fluoroplastic pipe having the function corresponding to a chemical-resistant atmosphere by laminating a reinforcing layer composed of a synthetic resin material to a fluoroplastic material of the innermost layer through an alloy and laminating a fluoroplastic material of the outermost layer to the reinforcing layer through the alloy to integrally mold all of them. CONSTITUTION:A multilayer fluoroplastic pipe 10 has a fluoroplastic material 1 in its innermost layer and a nylon material 3 being a reinforcing material is integrally laminated to the surface of the fluoroplastic resin material 1 through an alloy 2 and, further, a urethane material 5 being other reinforcing material is integrally laminated to the surface of the nylon material 3 through an alloy 4. Since the fluoroplastic material 1 and the reinforcing material 3 are integrally fixed by the alloy 2, no shift is generated between both materials 1, 3 even by repeated bending and the damage of both materials caused by the repeated bending is not also generated.

Description

Detailed Description of the Invention

[0001]

This invention relates to a fluorine resin pipe,
Specifically, the innermost layer and the outermost layer of the multi-layer resin pipe are formed of a fluorine resin layer, and an attempt is made to provide a multi-layer resin pipe having chemical resistance to a transfer fluid and resistance to an atmosphere. It is a thing.

[0002]

2. Description of the Related Art Fluorocarbon resin tubes having a fluorocarbon resin as the innermost layer and a resin layer laminated on the surface of the fluorocarbon resin for reinforcement are known. For example, when a nylon layer is laminated on a fluororesin as a reinforcing layer, both layers are not adhered to each other, and therefore when repeatedly bent and used, there is a case where a slip occurs between both members, which may cause damage. The fluororesin itself is easily stretched physically and easily cooked, and is usually formed as a tubular body with a reinforcing layer interposed.

[0003]

DISCLOSURE OF THE INVENTION According to the present invention, a reinforcing layer to be laminated on a fluorine resin layer is adhered with an alloy (reactive group) to strengthen the physical state and improve the chemical state in an atmosphere. The present invention is intended to provide such a fluorine resin tube.

[0004]

FIG. 1 shows a multilayer fluororesin tube according to the present invention as reference numeral 10. As is clear from the figure, the fluorine resin tube 10 has a fluorine resin material 1 in the innermost layer, and a nylon material 3 as a reinforcing material is integrally laminated on the surface of the fluorine resin material through an alloy 2.
Moreover, urethane 5 is integrally laminated on the surface of this reinforcing material as another reinforcing material via the alloy.

As described above, the fluorine resin tube according to the present invention is composed of five layers and is integrally molded.
A good product can be obtained by setting the physical properties of the fluorine resin material, the alloy and the reinforcing material to, for example, about 0.2t, 0.005t, 0.75t (t is the thickness).

As the reinforcing material, other resin materials besides the above-mentioned nylon and urethane can be selectively used.

[0007]

In the fluorine resin tube according to the present invention, the fluorine resin material and the reinforcing material are integrally fixed to each other by an alloy, so that there is no deviation between the two materials even when repeated bending is performed. It does not cause damage.

[0008]

EXAMPLE The multi-layered fluorine resin tube according to the present invention is effective as a solvent hose because the fluorine resin material is formed in the innermost layer, and the fluorine resin material is formed in the outermost layer, so that it can be used in the same atmosphere as the solvent. It is also suitable for use.

Further, a reinforcing layer made of nylon, urethane or the like is sandwiched between the innermost layer and the outermost layer of the fluororesin material via an alloy, which is good in terms of mechanical properties, flexibility or flame retardancy. It has become. Further, the flexibility function can be enhanced by further forming a blade layer on the above-mentioned multilayer fluorine resin tube.

[0010]

[Effects of the Invention] In the case of a pipe made of a fluorine resin material alone, chemical resistance,
Although it has excellent chemical resistance, it is not only easy to stretch and break from the viewpoint of mechanical properties, but it is heavier and more expensive than other resin pipes. The multilayer resin pipe according to the present invention eliminates the permeation of gasoline by being used as, for example, a fuel pipe of an automobile, and is most suitable as a pipe for a computer or a unit bath, especially as a solvent or a chemical hose.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a main part of a multi-layer resin pipe of the present invention.

[Explanation of symbols]

 1 Fluoro resin material 2 Alloy 3 Reinforcement material of synthetic resin material 4 Alloy 5 Fluoro resin material 10 Multi-layer Fluoro resin pipe

Claims (1)

[Claims] 1. A structure in which a reinforcing layer made of a synthetic resin material is laminated on the innermost layer of the fluorocarbon resin material via an alloy, and a fluorine resin material of the outermost layer is laminated on the reinforcing layer via an alloy so as to be integrally molded. Multi-layer fluorine resin tube characterized by.