CN206579160U

CN206579160U - A kind of barrier film for vacuum forming technique

Info

Publication number: CN206579160U
Application number: CN201621178982.4U
Authority: CN
Inventors: 陆菊林
Original assignee: Zhejiang Hengyida Composite Materials Co Ltd
Current assignee: Zhejiang Hengyida Composite Materials Co Ltd
Priority date: 2016-10-27
Filing date: 2016-10-27
Publication date: 2017-10-24
Anticipated expiration: 2026-10-27

Abstract

The utility model discloses a kind of barrier film for vacuum forming technique, the barrier film includes at least one layer of structure, through hole is evenly arranged with the barrier film, the through hole runs through the barrier film, spacing is in equilateral triangle distribution between 5 ~ 10mm, three mutual adjacent through holes between the adjacent through hole of each two.The utility model is provided with through hole on barrier film, through hole makes in vacuum forming resin have a more preferable trafficability performance, and the design of clear size of opening and structure, further increases its trafficability performance and gas permeability, the release cloth during demoulding is easily torn not damaged, be conducive to product surface smooth.

Description

A kind of barrier film for vacuum forming technique

Technical field

The utility model is related to plastic film material field, more particularly to a kind of barrier film for vacuum forming technique.

Background technology

The production of blade of wind-driven generator uses vacuum perfusion process, and isolation would generally be used in vacuum perfusion process Film, barrier film is conducive to the demoulding of release cloth, can prevent that release cloth tear in the demoulding is damaged, can also make product surface more light It is sliding, the quality of production is improved, traditional barrier film trafficability performance is poor, and permeability is poor, and barrier film can not play the good demoulding Effect, influences the quality of product.

Utility model content

In view of the above, the purpose of this utility model is to provide a kind of barrier film for vacuum forming technique, comes Solve the problem of prior art is present.

The utility model is adopted the following technical scheme that：

A kind of barrier film for vacuum forming technique, the barrier film includes at least one layer of structure, in the barrier film On be evenly arranged with through hole, the through hole runs through the barrier film, and three are in equilateral triangle mutually between adjacent through holes Shape is distributed.

The utility model provides a kind of barrier film for vacuum forming technique, it is preferable that the barrier film is individual layer knot Structure, is PE layers.

The utility model provides a kind of barrier film for vacuum forming technique, it is preferable that the barrier film is tied to be double-deck Structure, is followed successively by PA layers and PE layers.

The utility model provides a kind of barrier film for vacuum forming technique, it is preferable that the barrier film is three-layered node Structure, is followed successively by PA layers, PE layers, PA layers.

The utility model provides a kind of barrier film for vacuum forming technique, it is preferable that the PA thickness degree is less than institute State PE thickness degree.

The utility model provides a kind of barrier film for vacuum forming technique, it is preferable that the through hole is rounded or four Angle star.

The utility model provides a kind of barrier film for vacuum forming technique, it is preferable that the adjacent through hole of each two Between spacing be 5 ~ 10mm.

Advantage of the present utility model and have the beneficial effect that：

The utility model is the barrier film in vacuum forming technique for assisted demoulding, is provided with barrier film logical Hole, through hole makes in vacuum forming resin have a more preferable trafficability performance, and the design of clear size of opening and structure, further improves Its trafficability performance and gas permeability, enable release cloth during the demoulding easily to tear not damaged, can also make product surface more smooth, have Effect improves the quality of product.

Brief description of the drawings

Preferred embodiment of the present utility model is carried out below in conjunction with the accompanying drawings to describe in detail or preferably, wherein,

Fig. 1 is a kind of schematic diagram of the embodiment one of barrier film for vacuum forming technique of the utility model；

Fig. 2 is a kind of schematic diagram of the embodiment two of barrier film for vacuum forming technique of the utility model；

Fig. 3 is a kind of schematic diagram of the embodiment three of barrier film for vacuum forming technique of the utility model；

The schematic diagram that Fig. 4 is distributed for a kind of manhole of barrier film for vacuum forming technique of the utility model；

The signal that Fig. 5 is distributed for a kind of corner star-shaped through hole of barrier film for vacuum forming technique of the utility model Figure.

In figure：1st, PE layers；2nd, PA layers；3rd, through hole.

Embodiment

Embodiment one：

Make with reference to the embodiment one of Fig. 1, Fig. 4 and Fig. 5 barrier film for vacuum forming technique a kind of to the utility model Further illustrate.

A kind of barrier film for vacuum forming technique, the barrier film is the single layer structure being made up of PE layers 1, described It is evenly arranged with through hole 3 on PE layers 1, the through hole 3 runs through described PE layers, the through hole 3 is rounded or corner star, circular The area of through hole 3 is big, and permeability is good, and the star-shaped through hole 3 in corner is big with release cloth contact area, is conducive to the demoulding, and each two is adjacent Spacing is to make between 5 ~ 10mm, three mutual adjacent through holes 3 in equilateral triangle distribution, through hole 3 between the through hole 3 In vacuum forming, resin has more preferable trafficability performance and gas permeability, is conducive to the demoulding of product, improves the quality of product, and The design of the size of through hole 3 and structure, further increases its trafficability performance and gas permeability.

Using single layer structure, simple production process, production cost is low.

Embodiment two：

Make with reference to the embodiment two of Fig. 2, Fig. 4 and Fig. 5 barrier film for vacuum forming technique a kind of to the utility model Further illustrate.

A kind of barrier film for vacuum forming technique, the barrier film includes double-decker, is followed successively by PA layers 2 and PE layers 1, the thickness of PA layers 2 is less than the thickness of PE layers 1, through hole 3 is evenly arranged with the barrier film, the through hole 3 runs through The whole barrier film, the through hole 3 is rounded or corner star, and the circular area of through hole 3 is big, and permeability is good, corner star Through hole 3 and release cloth contact area it is big, it is 5 ~ 10mm, three to be conducive to spacing between the demoulding, the adjacent through hole 3 of each two Mutually in equilateral triangle distribution between the adjacent through hole 3, through hole 3 makes the resin in vacuum forming have more preferable circulation Performance and gas permeability, are conducive to the demoulding of product, improve the quality of product, and the design of the size of through hole 3 and structure, further carry High its trafficability performance and gas permeability.

By setting one layer of PA layer 2 on the surface of PE layers 1, more excellent performance is made it have, in structural strength, high temperature resistant All had a distinct increment on performance and decay resistance, and PA layers 2 have good elasticity and shock resistance, barrier film is difficult to tear Split.

Embodiment three：

Make with reference to the embodiment three of Fig. 3, Fig. 4 and Fig. 5 barrier film for vacuum forming technique a kind of to the utility model Further illustrate.

A kind of barrier film for vacuum forming technique, the barrier film include three-decker, be followed successively by PA layers 2, PE layers 1st, PA layers 2, the thickness of PA layers 2 is less than the thickness of PE layers 1, and through hole 3, the through hole are evenly arranged with the barrier film 3 through the whole barrier film, and the through hole 3 is rounded or corner star, and the circular area of through hole 3 is big, and permeability is good, corner Star-shaped through hole 3 is big with release cloth contact area, and it is 5 ~ 10mm to be conducive to spacing between the demoulding, the adjacent through hole 3 of each two, In equilateral triangle distribution between three mutual adjacent through holes 3, through hole 3 makes the resin in vacuum forming have preferably Trafficability performance and gas permeability, are conducive to the demoulding of product, improve the quality of product, and the design of the size of through hole 3 and structure, enter one Step improves its trafficability performance and gas permeability.

By applying one layer of PA layer 2 in the upper and lower surface of PE layers 1, its performance is set further to optimize.

Finally it should be noted that：Preferred embodiment of the present utility model is the foregoing is only, this is not limited to Utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art For, it can still modify to the technical scheme described in foregoing embodiments, or to which part technical characteristic Equivalent substitution is carried out, all within spirit of the present utility model and principle, any modification, equivalent substitution and improvements made etc., It should be included within protection domain of the present utility model.

Claims

1. a kind of barrier film for vacuum forming technique, it is characterised in that the barrier film includes at least one layer of structure, in institute State and through hole is evenly arranged with barrier film（3）, the through hole（3）Through the barrier film, three mutual adjacent through holes （3）Between in equilateral triangle distribution, the through hole（3）In corner star.

2. a kind of barrier film for vacuum forming technique according to claim 1, it is characterised in that the barrier film is Single layer structure, is PE layers（1）.

3. a kind of barrier film for vacuum forming technique according to claim 1, it is characterised in that the barrier film is Double-decker, is followed successively by PA layers（2）With PE layers（1）.

4. a kind of barrier film for vacuum forming technique according to claim 1, it is characterised in that the barrier film is Three-decker, is followed successively by PA layers（2）, PE layers（1）, PA layers（2）.

5. a kind of barrier film for vacuum forming technique according to claim 3 or 4, it is characterised in that described PA layers （2）Thickness is less than described PE layers（1）Thickness.

6. a kind of barrier film for vacuum forming technique according to claim 1, it is characterised in that the adjacent institute of each two State through hole（3）Between spacing be 5 ~ 10mm.