CN211138423U

CN211138423U - High-strength 3D inflatable and warm-keeping polyurethane air-tight film

Info

Publication number: CN211138423U
Application number: CN201921623956.1U
Authority: CN
Inventors: 纪峰; 王方明; 王徐涛
Original assignee: Suzhou Xingshichuang Textile Technology Research Co ltd
Current assignee: Suzhou Xingshichuang Textile Technology Research Co ltd
Priority date: 2019-09-27
Filing date: 2019-09-27
Publication date: 2020-07-31
Anticipated expiration: 2029-09-27

Abstract

The utility model discloses a polyurethane of cold-proof usefulness is aerifyd to high strength 3D closes gas membrane, including low temperature facial mask, high temperature facial mask, PUR hot melt adhesive layer and chemical fibre class bed of cloth, processing method includes following step, the distribution is controlled temperature 98 ℃ and 138 ℃ respectively and is prepared low temperature face raw materials and high temperature face raw materials, and draw the membrane and obtain low temperature facial mask and high temperature facial mask, make low temperature facial mask and high temperature facial mask pressfitting substrate membrane, do the grafting adhesion bonding on chemical fibre class bed of cloth and make the two laminating make finished product high strength 3D aerify the polyurethane of cold-proof usefulness close the gas membrane through PUR hot melt adhesive controlled temperature 90 ℃ -98 ℃, the advantage of the utility model lies in that the elasticity, the intensity that the polyurethane that the cold-proof usefulness is aerifyd to the intensity 3D that make through this method closes the gas membrane all are superior to ordinary TPU, and feel soft, viscidity.

Description

High-strength 3D inflatable and warm-keeping polyurethane air-tight film

Technical Field

The utility model belongs to the technical field of the surface fabric processing and specifically relates to a polyurethane of cold-proof usefulness is aerifyd to high strength 3D closes gas film.

Background

TPU (thermoplastic polyurethanes) are known under the name thermoplastic polyurethane elastomer rubbers. The halogen-free flame-retardant TPU can be widely applied to the fields of daily necessities, sports goods, toys, decorative materials and the like, and can also replace soft PVC to meet the environmental protection requirements of more and more fields.

The elastomer is a high polymer material with the glass transition temperature lower than the room temperature, the elongation at break of more than 50 percent and good recoverability after the external force is removed. The polyurethane elastomer is a special class of elastomers, and has a wide hardness range and a wide performance range, so that the polyurethane elastomer is a high polymer material between rubber and plastic.

It can be plasticized by heating, and has no or little cross-linking in chemical structure, and its molecules are basically linear, but have some physical cross-linking. Such polyurethanes are known as TPUs.

The TPU polyurethane material is modified to enable the polyurethane film to generate double temperature between 0.0012 and 0.1 mm in thickness, namely one surface is melted at 100 ℃ and the other surface is melted at 135 ℃. The polyurethane TPU film modified material is adjusted by about 80A of polyurethane master batch. The modified material is added into the melted polyurethane liquid through a high-temperature melting method, and then the double-sided different temperature resistance is formed through the characteristics of the TPU.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: the utility model aims to provide a high strength 3D aerifys polyurethane of cold-proof usefulness and closes gas film to prior art's not enough.

The technical scheme is as follows: a high strength 3D aerifys polyurethane of cold-proof usefulness and closes gas membrane, this high strength 3D aerifys polyurethane that cold-proof usefulness and closes gas membrane and include substrate membrane and chemical fibre class bed of cloth, the substrate membrane is bilayer structure membrane, including the thick low temperature facial mask of 0.02mm and the thick high temperature facial mask of 0.028mm, for pressfitting fusion layer between low temperature facial mask and the high temperature facial mask, be equipped with PUR hot melt adhesive layer between substrate membrane and the chemical fibre class bed of cloth and through PUR hot melt adhesive bonding substrate membrane and chemical fibre class bed of cloth.

Preferably, the thickness of the stitch-bonded layer does not exceed 2 μm.

The utility model discloses compare and have following beneficial effect in prior art: (1) the elasticity and the strength of the polyurethane air-blocking film for 3D inflation and warm keeping are superior to those of common TPU;

(2) soft hand feeling, high viscosity and high peeling strength.

Drawings

Fig. 1 is a schematic cross-sectional structure diagram of an embodiment of the present invention.

In the figure: 1. low-temperature facial mask; 2. pressing the fusion layer; 3. high-temperature facial mask; 4. chemical fiber cloth layer.

Detailed Description

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present invention and for simplicity in description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the present invention.

In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as a fixed connection, a detachable connection, or an integral part; the connection can be mechanical connection, electrical connection or communication connection; either directly or indirectly through intervening media, either internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The technical solution of the present invention will be described in detail with specific examples. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments.

Example 1: the utility model provides a high strength 3D aerifys polyurethane of cold-proof usefulness and closes gas membrane, this high strength 3D aerifys polyurethane that cold-proof usefulness and closes gas membrane includes substrate membrane and chemical fibre class bed of cloth 4, and the substrate membrane is bilayer structure membrane, includes 0.02mm thick low temperature facial mask 1 and 0.028mm thick high temperature facial mask 3, is pressfitting fusion layer 2 between low temperature facial mask 1 and the high temperature facial mask 3, is equipped with PUR hot melt adhesive layer between substrate membrane and the chemical fibre class bed of cloth 4 and bonds substrate membrane and chemical fibre class bed of cloth 4 through PUR hot melt adhesive. The thickness of the pressed fusion layer 2 is not more than 2 μm.

The processing method for preparing the high-strength 3D inflatable and warmth-keeping polyurethane air-blocking film comprises the following steps:

s1: melting the 80A polyurethane master batch at 98 ℃ to a molten state, and mixing with a modified material to prepare a low-temperature surface raw material of the high-strength 3D inflatable thermal polyurethane air-blocking film;

s2: drawing the low-temperature facial mask raw material prepared in the step S1 to 0.02mm to prepare a low-temperature facial mask 1;

s3, melting the 80A polyurethane master batch at 138 ℃ to a molten state, and mixing with a modified material to prepare the high-temperature surface raw material of the high-strength 3D inflatable thermal polyurethane air-lock film;

s4: drawing the high-temperature noodle raw material prepared in the step S3 to 0.028mm to prepare a high-temperature facial mask 3;

s5: laminating the low-temperature mask 1 and the high-temperature mask 3 to obtain a substrate film with the thickness of 0.048mm, a low-temperature surface at 98 ℃ and a high-temperature surface at 138 ℃;

s6: the base material film is grafted, adhered and adhered on the chemical fiber cloth layer 4 by PUR hot melt adhesive and is bonded with the chemical fiber cloth layer 4;

s7: and controlling the grafting adhesion temperature to be 90-98 ℃ in S6 to obtain the finished product of the high-strength 3D inflatable heat-insulating polyurethane gas-tight film.

Preferably, the peel strength between the base material film and the chemical fiber cloth layer 4 is controlled to be 17N/inch after the graft blocking in S6 is completed.

The utility model discloses compare and have following beneficial effect in prior art: (1) the elasticity and the strength of the polyurethane air-blocking film for 3D inflation and warm keeping, which is prepared by the method, are superior to those of common TPU;

(2) soft hand feeling, high viscosity and high peeling strength.

The TPU polyurethane material is modified to enable the polyurethane film to generate double temperature between 0.0012 and 0.1 mm in thickness, namely one surface is melted at 100 ℃ and the other surface is melted at 135 ℃. The polyurethane TPU film modified material is adjusted by about 80A of polyurethane master batch. The modified material is added into the melted polyurethane liquid through a high-temperature melting method, and then the double-sided different temperature resistance is formed through the characteristics of the TPU. Through numerous experiments, the low-temperature surface of the polyurethane TPU film with different strengths is tested to 120 ℃ from 60 ℃. It was finally judged that 98 ℃ was better. The temperature of the high temperature surface is measured from 100 ℃ to 160 ℃, and finally 138 ℃ is the best state. Too low a temperature and too viscous; the temperature is high, the viscosity is not good, so the melting point is set at 98 ℃/138 ℃, and the melting point is better and more reasonable, the thickness is set at 0.048mm, and the melting point is lighter and softer.

In the present application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first feature or the second feature or indirectly contacting the first feature or the second feature through an intermediate. Also, a first feature "on," "above," and "over" a second feature may mean that the first feature is directly above or obliquely above the second feature, or that only the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lower level than the second feature. In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example" or "some examples," or the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example.

Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. The utility model provides a polyurethane of cold-proof usefulness is aerifyd to high strength 3D closes gas membrane which characterized in that: this polyurethane that cold-proof usefulness is aerifyd to high strength 3D closes gas membrane includes substrate membrane and chemical fibre class bed of cloth, the substrate membrane is bilayer structure membrane, including the thick low temperature facial mask of 0.02mm and the thick high temperature facial mask of 0.028mm, be the pressfitting layer of fusing between low temperature facial mask and the high temperature facial mask, be equipped with PUR hot melt adhesive layer and through PUR hot melt adhesive bonding substrate membrane and chemical fibre class bed of cloth between substrate membrane and the chemical fibre class bed of cloth.

2. The high-strength 3D inflatable and warm-keeping polyurethane air-lock membrane according to claim 1, wherein: the thickness of the pressed fusion layer is not more than 2 μm.