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Light-solidifying binding agent compounded multiaspect drag-resisting compound film and method for producing the same

A production method and adhesive technology, which are applied in chemical instruments and methods, synthetic resin layered products, applications, etc., can solve the problem of low tensile strength of composite films, insignificant improvement of tensile strength and tear resistance, and no Take advantage of tensile strength and other issues to achieve the effects of light weight, significant tear resistance, and reliable and easy stretching and compounding

Inactive Publication Date: 2010-09-01
甘国工
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During longitudinal stretching, the film is stretched longitudinally by two sets of inner and outer ring nip rollers. At this time, because the two sets of ring nip rollers cannot actually clamp the cylindrical film, it is difficult to produce longitudinal stretching. At this time, the film is actually longitudinally tensile. The strength does not increase, the actual tensile strength of the composite film is very low, and the excellent performance of the tensile strength in the stretching direction of the plastic film is increased by four to ten times after stretching and orientation, the tensile strength and tear resistance The performance improvement is not obvious

Method used

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  • Light-solidifying binding agent compounded multiaspect drag-resisting compound film and method for producing the same
  • Light-solidifying binding agent compounded multiaspect drag-resisting compound film and method for producing the same
  • Light-solidifying binding agent compounded multiaspect drag-resisting compound film and method for producing the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] figure 1 A diagram of Example 1 of the present invention is shown. In this embodiment, the multi-directional tensile composite film 1 composited with a light-curing adhesive is composed of a first uniaxially stretched plastic film 2 and another one with a stretching direction 7 and a film edge 8 at an oblique angle of 45° The second uniaxially stretched plastic film 3 with the same stretch direction and the film edge at an oblique angle of 45°, the stretch direction is in a cross state, and the polyurethane acrylate (PUA) light curing adhesive layer 4 is firmly bonded Compounded together. The uniaxially stretched film sheets 2 and 3 are high-density polyethylene films (HDPE). In the prior art, ethylene-vinyl acetate copolymer (EVA) is used as a binder to bond two layers of high-density polyethylene film (HDPE) together. This is a weak bond, and its longitudinal and transverse tensile strength The strength is below 65Mpa. The present invention adopts polyurethane acryla...

Embodiment 2

[0031] figure 2 A diagram of Example 2 of the present invention is shown. This embodiment is basically the same as Embodiment 1. The difference is that the composite multi-directional tensile and tear-resistant film 1 has a layer of longitudinal unidirectional stretch oriented film 5 in the middle, and the films are firmly bonded and laminated by a polyurethane acrylate (PUA) light-curing adhesive 4 together.

Embodiment 3

[0033] image 3 A diagram of Example 3 of the present invention is shown. This embodiment is basically the same as Embodiment 1. The difference is that the outermost layer of the composite multi-directional tensile and tear-resistant film is a hot-melt connecting layer 6 that facilitates hot-melt connection and does not damage the tensile orientation performance of the stretched base film.

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Abstract

The present invention provides a multidirectional tensile composite film compounded with light-curing binder compound. The multidirectional tensile composite film is divided into at least three layers, wherein a binder layer makes a light-curing binder film layer of acrylic acid series coating on the surface of a stretched film polymerized, solidified and provided with bonding capability by usingUV irradiation, so as to bond the stretched film; at least two layers of stretched film with the macromolecule arrayed in tensile oriented direction are provided; the oriented arraying direction of the stretched film macromolecule is at 15 to 75 DEG C to the film edge or a vertical axis; at least two layers of stretched film makes the oriented arraying direction of the stretched macromolecule opposite in a mutually cross state, bonded and compounded by the light-curing binder, forming the multidirectional tensile composite film. The film is light in weight, high in strength, durable in service and significant in the anti-tear effect in longitude and latitude directions as well as the direction at 45 DEG C to the longitude and latitude directions. The present invention is simple in production method and low in cost.

Description

Technical field: [0001] The invention relates to at least two layers of uniaxially stretched plastic films which are combined into a multi-directional tensile film by means of an adhesive, in particular to a tubular film that is re-formed into a tubular tube film after being double-layered and longitudinally uniaxially stretched. , Take the longitudinal stretching direction as the axis and skew 15° to 75°, and cut the cylindrical film into a flat film with a skew angle of 15° to 75° between the stretching direction and the edge of the cut flat film to make it at least The stretching directions of the two layers are relatively intersected with each other, and they are combined into a multi-directional tensile film by using a light-curing adhesive. Background technique: [0002] The technology closest to the present invention is the U.S. Patent (Patent No. 3,342,657). The technology disclosed in this patent is that after a cylindrical film is stretched in the longitudinal direction...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B7/12B32B27/12B32B37/12B29C69/02B29C55/22B29D7/01B05D3/06B05D5/10
Inventor 甘国工
Owner 甘国工