CN101696732B

CN101696732B - Novel double-layer nylon wind pipe

Info

Publication number: CN101696732B
Application number: CN200910186313XA
Authority: CN
Inventors: 刘烈新; 吴振宇; 刘志洪
Original assignee: Xiamen Xinwang Industry & Trade Co Ltd
Current assignee: Xiamen Xinwang New Material Technology Co., Ltd.
Priority date: 2009-10-26
Filing date: 2009-10-26
Publication date: 2012-11-28
Anticipated expiration: 2029-10-26
Also published as: CN101696732A

Abstract

The invention relates to the technical field of auxiliary consumable materials for composite material blowing molding, in particular to a high-strength wind leakage-preventing novel double-layer nylon wind pipe. Compared with the prior art, the novel double-layer nylon wind pipe consists of inner and outer two layers of membranes, wherein the outer layer is made of a poly(methyl pentene) material and the inner layer is made of a polyamide material; the inner and outer two layers are formed by blending extrusion technology; the outer layer can withstand a high temperature of 180 DEG C and has an epoxy resin automatic separation effect; and the inner layer has excellent airtightness and other physical properties. In the novel double-layer nylon wind pipe, a wind leakage problem caused to the wind pipe due to the existence of crystal points is solved, and compared with common nylon wind pipe the tensile strength is improved by 16 to 67 percent, the melting point is improved by about 18 percent and the fracture elongation is improved by about 33 percent. In addition, the novel double-layer nylon wind pipe may have the advantages of parting, high-temperature resistance, high-pressure resistance, long blasting time and high flexibility according to requirements of customers.

Description

Novel double-layer nylon wind pipe

Technical field

The present invention relates to the complementary consumable material technical field of composite material blowing moulding, particularly a kind ofly have high tenacity, can avoid the novel double-layer nylon wind pipe that leaks out.

Background technique

The complementary consumable material of composite material blowing moulding; Play a part to support lubricated internal diameter tube wall; Be mainly used in carbon fiber product, like aspects such as bicycle, racket, hockey stick, golf ball, the complementary consumable material of this composite material blowing moulding of the prior art mainly is the common airduct of being processed by nylon material of individual layer; And the nylon products airduct can't be avoided the generation of brilliant point in process of production fully; Therefore can produce this airduct and the problem of leaking out can occur, and the common airduct of this individual layer also can't solve the problem of leaking out, its tensile strength, fusing point, fracture elongation are all lower simultaneously; Cause using scope little therefrom, relatively harsher to environmental requirement.

Summary of the invention

Be to solve existing defective of nylon wind pipe and problem in the existing technology, provide a kind of and have high tenacity, can avoid the novel double-layer nylon wind pipe that leaks out.

The technological scheme that the present invention is adopted for its technical problem of solution is: novel double-layer nylon wind pipe of the present invention is made up of double-layer films; Form a cavity in the double-layer films; Double-layer films tightly is combined into one, and does not interspace between the double-layer films, and the skin in the double-layer films adopts the polymethylpentene material; Internal layer adopts polyamide material; Inside and outside two-layerly generate through the blend extruding technology, double-layer nylon wind pipe is the complementary consumable material of composite material blowing moulding, has high tenacity, can avoid leaking out.

The invention has the beneficial effects as follows: compared with prior art; Novel double-layer nylon wind pipe skin of the present invention can bear 180 ℃ of high temperature and possess the effect of separating voluntarily for epoxy resin; Internal layer possesses good air-tightness and other physical property, has solved airduct and has had the problem of leaking out that produces because of crystalline substance point, and tensile strength improves 16%～67% than common nylon wind pipe; Fusing point improves about 18%; The fracture elongation improves about 33%, and can be according to client's different requirement, accomplish release, high temperature resistant, high pressure resistant, blasting time is long, the good advantage of pliability.

Description of drawings

Below in conjunction with accompanying drawing and embodiment novel double-layer nylon wind pipe of the present invention is described further.

Fig. 1 is the cross-sectional view of novel double-layer nylon wind pipe of the present invention.

Embodiment

As shown in Figure 1; Novel double-layer nylon wind pipe of the present invention is made up of inner membrance 1 and adventitia 2; Inner membrance 1 adopts polyamide material, and polyamide has very high mechanical strength, also has good air-tightness, good various physical properties such as softening point is high, heat-resisting, friction ractor is low, wear-resistant, self lubricity, shock absorption, noise reduction property, oil resistant, weak acid resistant, alkaline-resisting, electrical insulating property, self-extinguish ability, nontoxic, odorless, good weatherability, chromaticity difference; Solve airduct and had the problem of leaking out that produces because of crystalline substance point; Adventitia 2 adopts the polymethylpentene materials, inside and outside two-layerly generate through the blend extruding technology, inner membrance 1 and adventitia 2 tightly are combined into one; Do not interspace between the double-layer films, in double-layer films, form a cavity 3.Novel double-layer nylon wind pipe of the present invention is mainly used in carbon fiber product, like aspects such as bicycle, racket, hockey stick, golf ball, in these carbon fiber products, has an internal diameter tube wall 4; Double-layer nylon wind pipe plays one to these internal diameter tube walls 4 just and supports and lubrication; Compare with the common nylon wind pipe of existing technology, it has possessed and can bear 180 ℃ of high temperature and possess the effect of separating voluntarily for epoxy resin, has good air-tightness and other physical property; It has solved the problem of leaking out that produces because of the existence of crystalline substance point; Tensile strength improves 16%～67%, and fusing point improves about 18%, and the fracture elongation improves about 33%; And can be according to client's different requirement, accomplish release, high temperature resistant, high pressure resistant, blasting time is long, the good advantage of pliability.

According to embodiments of the invention describing the present invention property and nonrestrictive description, but should be understood that and do not breaking away under the situation of the relevant protection domain that limits claim that those skilled in the art can make change and/or revise.

Claims

1. a novel double-layer nylon wind pipe is characterized in that, is made up of double-layer films; Form a cavity in the double-layer films, described double-layer films tightly is combined into one, and does not interspace between the double-layer films; Skin in the described double-layer films adopts the polymethylpentene material, and internal layer adopts polyamide material, inside and outside two-layerly generate through the blend extruding technology; Described double-layer nylon wind pipe is the complementary consumable material of composite material blowing moulding, has high tenacity, can avoid leaking out.