TPU composite material for oil storage bag

A composite material and oil storage bag technology, which is applied in applications, household appliances, household packaging, etc., can solve the problems of reducing the tear strength of composite materials, affecting the performance of materials, and poor hydrolysis resistance, so as to improve the peeling strength and solve the problem of peeling The contradiction between strength and tear strength, the effect of excellent oil resistance

Active Publication Date: 2015-04-22
FUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional TPU composite materials for oil storage bags are mostly polyester TPU materials. Although they have excellent oil resistance, they have poor hydrolysis resistance and cold resistance -25~-30°C. When they are stored and transported outdoors, they encounter rain or oil. When there is a certain amount of water in the water, it will affect the performance of the material and cause safety hazards
At the same time, in order to improve the peel strength of the traditional TPU composite material for oil storage bags, enough glue needs to be applied. The glue will fully penetrate and attach to the fabric, which will reduce the tear strength of the composite material.

Method used

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  • TPU composite material for oil storage bag

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A TPU composite material for an oil storage bag sequentially comprises a TPU mask layer, a PU adhesive layer, a modified fiber reinforcement layer, a PU adhesive layer and a TPU bottom film layer from top to bottom, and its preparation method specifically includes the following steps:

[0028] 1) In parts by weight, 100 parts of water-based polyurethane resin (STAHL RU-22-199, with a solid content of 48%) and 2 parts of a water-based crosslinking agent (STAHL XR-5588, with a solid content of 78%) are fully stirred and mixed Finally, add water to adjust the viscosity to 350±20 mPa.s to obtain a water-based polyurethane coating agent;

[0029] 2) Use a 60-mesh roller to coat the water-based polyurethane coating agent on the upper and lower sides of the high-strength polyester fiber mesh, then dry it at 120°C, and obtain a modified fiber reinforced layer after winding;

[0030] 3) Apply polyether polyurethane two-component glue to the upper and lower sides of the modified ...

Embodiment 2

[0034] A TPU composite material for an oil storage bag sequentially comprises a TPU mask layer, a PU adhesive layer, a modified fiber reinforcement layer, a PU adhesive layer and a TPU bottom film layer from top to bottom, and its preparation method specifically includes the following steps:

[0035] 1) In parts by weight, 100 parts of water-based polyurethane resin (STAHL RU-22-199, 50% solid content) and 6 parts of water-based crosslinking agent (STAHL XR-5588, 80% solid content) are fully stirred and mixed Finally, add water to adjust the viscosity to 400±20 mPa.s to obtain a water-based polyurethane coating agent;

[0036] 2) Use a 50-mesh roller to coat the water-based polyurethane coating agent on the upper and lower sides of the high-strength nylon fiber mesh, then dry it at 125°C, and obtain a modified fiber reinforced layer after winding;

[0037] 3) Apply polyether polyurethane two-component glue to the upper and lower sides of the modified fiber reinforced layer wit...

Embodiment 3

[0041] A TPU composite material for an oil storage bag sequentially comprises a TPU mask layer, a PU adhesive layer, a modified fiber reinforcement layer, a PU adhesive layer and a TPU bottom film layer from top to bottom, and its preparation method specifically includes the following steps:

[0042] 1) In parts by weight, 100 parts of water-based polyurethane resin (STAHL RU-22-199, with a solid content of 52%) and 8 parts of a water-based crosslinking agent (STAHL XR-5588, with a solid content of 82%) are fully stirred and mixed Finally, add water to adjust the viscosity to 480±20 mPa.s to obtain a water-based polyurethane coating agent;

[0043] 2) Use a 60-mesh roller to coat the water-based polyurethane coating agent on the upper and lower sides of the high-strength aramid fiber mesh, then dry it at 130°C, and obtain a modified fiber reinforced layer after winding;

[0044] 3) Apply polyether polyurethane two-component glue to the upper and lower sides of the modified fib...

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Abstract

The present invention discloses a TPU composite material for an oil storage bag. The TPU composite material sequentially comprises a TPU surface film layer, a PU adhesion layer, a modified fiber-reinforced layer, a PU adhesion layer and a TPU bottom film layer, wherein a polyether type polyurethane two-liquid type glue is coated onto the upper surface and the lower surface of the modified fiber-reinforced layer, drying and winding are performed, an unwinding device is adopted, preheating activation is performed with hot wind, and the obtained material, the casting TPU surface film and the bottom film are attached at a high temperature under a high pressure to obtain the finished product. Compared with the conventional TPU oil bag material, the TPU composite material of the present invention has the following advantages that: in the case of the excellent oil resistance, the TPU composite material has characteristics of water resistance and cold resistance, the contradiction between the composite material peel strength and the composite material tear strength is solved, and the obtained TPU composite material for the oil storage bag has characteristics of excellent oil resistance, excellent water resistance, excellent cold resistance, excellent tear resistance and high peel strength, and provides significant performance advantages.

Description

technical field [0001] The invention relates to a TPU composite material for an oil storage bag and a preparation method thereof. Background technique [0002] The TPU composite material used for oil storage bags has the characteristics of good oil resistance, high strength, light weight, good flexibility, and excellent welding performance, so it is widely used in oil supply, transportation, storage and other fields. The traditional TPU composite materials for oil storage bags are mostly polyester TPU materials. Although they have excellent oil resistance, they have poor hydrolysis resistance and cold resistance -25~-30°C. When they are stored and transported outdoors, they encounter rain or oil. When there is a certain amount of moisture in the material, it will affect the performance of the material and cause a safety hazard. At the same time, in order to improve the peel strength of the traditional TPU composite material for oil storage bags, enough glue needs to be appl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/40B32B27/08C08L75/08C08L23/08C08L83/04
CPCB32B27/08B32B27/40C08L23/08C08L75/08C08L83/04B32B7/12B32B27/12B32B2307/50B32B2307/558B32B2307/5825B32B2439/00C08L2205/03C08L2310/00
Inventor 郑玉婴
Owner FUZHOU UNIV
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