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Preparation method and use method of high-resilience TPU hot-melt adhesive tape

A hot-melt tape and high-resilience technology, which is applied in the direction of adhesives, polymer adhesive additives, film/sheet adhesives, etc., can solve the problem of not being able to adapt to the large-scale expansion and contraction of high-resilience textiles and weak cohesion and other problems, to achieve the effect of improving granulation efficiency, improving quality, and high particle uniformity

Active Publication Date: 2016-07-20
江苏和和新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although the TPU hot-melt adhesive film currently on the market has certain elasticity and bonding strength, it still performs poorly when applied to the bonding of high-resilience textiles such as spandex cloth, mainly due to weak bonding force and inability to adapt to high Isometric limit of large expansion and contraction of resilient textiles

Method used

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  • Preparation method and use method of high-resilience TPU hot-melt adhesive tape
  • Preparation method and use method of high-resilience TPU hot-melt adhesive tape

Examples

Experimental program
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Effect test

Embodiment 1

[0032] A preparation method of high-resilience TPU hot-melt adhesive tape, taking the hot-melt adhesive film whose product model is LQ361-05 and whose specification is 152cm*500m / r as an example, the specific steps of its preparation are as follows:

[0033] The first step, masterbatch raw material: it is composed of the following raw materials in weight ratio, TPU 50 parts, petroleum resin 40 parts, processing aid 10 parts, the melt index of the masterbatch raw material at 160 °C is 73g / 10min;

[0034] The second step, granulation: before the granulator works, it is necessary to clean the screw with PE pure material, and then put the masterbatch raw material in the first step into the mixer for mixing. The mixer adopts a high-speed mixer with a stirring speed of 300-500rpm. The time is 10 minutes; then put the mixed masterbatch raw materials into a granulator for granulation. The granulator adopts a twin-screw granulator with a host current of 80A, a melt pressure of 2MPa, a h...

Embodiment 2

[0039] The first step, masterbatch raw materials: it is composed of the following raw materials in the weight ratio, TPU55 parts, petroleum resin 40 parts, processing aids 15 parts, the melt index of masterbatch raw materials at 160°C is 69g / 10min;

[0040] The second step, granulation: before the granulator works, it is necessary to clean the screw with PE pure material, and then put the masterbatch raw material in the first step into the mixer for mixing. The mixer adopts a high-speed mixer with a stirring speed of 350rpm and a stirring time of 10 minutes ; Then put the mixed masterbatch raw material into the granulator for granulation, the granulator adopts a twin-screw granulator, the main engine current is 80A, the melt pressure is 2MPa, the main engine speed is 400r / min, and the feeding speed is 210r / min. Heat the heating zone at 150°C along the extrusion direction of the screw; after the granulation is completed, dry to obtain the masterbatch, the drying temperature is 4...

Embodiment 3

[0045] A method for preparing a high-resilience TPU hot-melt adhesive film, taking the hot-melt adhesive film whose product model is LQ361-15 and whose specification is 152cm*500m / r as an example, the specific steps of its preparation are as follows:

[0046] The first step, masterbatch raw material: it is composed of the following raw materials in weight ratio, TPU60 parts, petroleum resin 30 parts, processing aid 10 parts, the melt index of the masterbatch raw material at 160 ℃ is 25-25g / min;

[0047] The second step, granulation: before the granulator works, it is necessary to clean the screw with PE pure material, and then put the masterbatch raw material in the first step into the mixer for mixing. The mixer adopts a high-speed mixer with a stirring speed of 350rpm and a stirring time of 10 minutes ; Then put the mixed masterbatch raw material into the granulator for granulation, the granulator adopts a twin-screw granulator, the main engine current is 80A, the melt pressu...

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Abstract

The invention relates to a preparation method and a use method of a high-resilience TPU hot-melt adhesive tape. The preparation method mainly comprises five steps of selection of master batch raw materials, granulation, tape casting, compounding and splitting. In the tape casting step, master batches are fed into a tape casting machine in a mixing manner according to a weight ratio of 100:(5-15) for tape casting molding and rolling. When the high-resilience TPU hot-melt adhesive tape prepared by the preparation method is in use, one surface without release paper is in contact with a base material, and certain temperature and pressure are applied to pressing equipment; after adhesion is completed, the other surface is adhered to another adhered base material. The preparation method of the high-resilience TPU hot-melt adhesive tape has the advantages that the adhesion strength and the resilience of a hot-melt adhesive tape film are improved; when the prepared high-resilience TPU hot-melt adhesive tape film is in use, the equipment process is simple, and the working efficiency is high.

Description

technical field [0001] The invention belongs to the technical field of hot-melt adhesive films, in particular to a method for preparing a high-resilience TPU hot-melt adhesive film, and also relates to a method for using a high-resilience TPU hot-melt adhesive film. Background technique [0002] Hot melt adhesive film is a film product with / without liner (with / without substrate), which can be conveniently operated continuously or intermittently. It can be widely used in all kinds of fabrics, papers, polymer materials and metal bonding. [0003] The hot-melt adhesive film based on thermoplastic polyurethane (TPU) is one of the most important varieties of hot-melt adhesive film. Because the main polyurethane resin contains a large number of polar groups and active reactive groups, it is suitable for various substrates such as Good adhesion to metal, plastic, wood, fabric, glass, etc. There are many kinds of raw materials and additives for synthesizing polyurethane, so the co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/04C09J11/08C09J157/02C08J3/22
CPCC08J3/226C08J2375/04C08J2475/04C09J7/21C09J7/30C09J11/08C09J175/04C09J2301/124C09J2301/304C09J2475/00C08L57/02
Inventor 叶书怀
Owner 江苏和和新材料股份有限公司
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