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Temperature-resistant TPU light conveyor belt and manufacturing method thereof

A light-duty conveyor belt and manufacturing method technology, applied in the direction of conveyors, transportation and packaging, etc., can solve the problems of separation of TPU surface layer and skeleton material, carbonization and disintegration, and easy aging and failure of the adhesive layer, so as to avoid aging cracking, adding The effect of increasing strength with less amount

Active Publication Date: 2019-01-18
SHANGHAI YONGLI TRANSPORTATION SYST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the food baking industry, the existing TPU conveyor belt runs in a long-term high-temperature environment, and the adhesive layer is prone to aging and failure, resulting in the separation of the TPU surface layer and the skeleton material. Therefore, making a temperature-resistant TPU conveyor belt is suitable for food baking. Industry is of great significance
Nanocellulose is a water-soluble material. After being dissolved in water and dried, it will form a three-dimensional network structure similar to a sponge. The strength of this structure will not change with the rise of temperature, and it will only be carbonized and disintegrated after reaching a critical temperature. At present, there is no report on the use of nanocellulose in TPU conveyor belts

Method used

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  • Temperature-resistant TPU light conveyor belt and manufacturing method thereof
  • Temperature-resistant TPU light conveyor belt and manufacturing method thereof
  • Temperature-resistant TPU light conveyor belt and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] According to the structure and material in Table 1, prepare a light-duty heat-resistant TPU conveyor belt; add 10% nanocellulose and 5% curing agent to the water-based TPU glue, and stir for 15min at a stirring speed of 500r / min; One side of the ester fabric layer is coated with the above-mentioned mixed glue, and the coating amount is 100g / m 2 , dried in an infrared heating oven at 100°C; then the dried composite layer coated with glue is bonded to the TPU surface layer, extruded and calendered at an extrusion temperature of 185°C and an extrusion pressure of 10Pa, and cooled That is to say; the cloth surface temperature of the fabric layer is 125° C. during the extrusion and calendering compounding process.

Embodiment 2

[0035] The manufacturing method of the temperature-resistant TPU light conveyor belt is: add 10% nanocellulose and 5% curing agent to the water-based TPU glue, stir for 10 minutes at a stirring speed of 400r / min; The surface is coated with mixed glue, and the coating amount is 80g / m 2 , dried in an infrared heating oven at 100°C; then the dried composite layer coated with glue is bonded to the TPU surface layer, extruded and calendered at an extrusion temperature of 180°C and an extrusion pressure of 10Pa, and cooled That is to say; the fabric surface temperature of the PET polyester fabric layer is 120° C. during the extrusion calendering compounding process.

Embodiment 3

[0037] The manufacturing method of the temperature-resistant TPU light conveyor belt is as follows: add 10% nanocellulose and 5% curing agent to the water-based TPU glue, stir for 20 minutes at a stirring speed of 600r / min; The surface is coated with mixed glue, and the coating amount is 120g / m 2 , dried in an infrared heating oven at 120°C; then the dried composite layer coated with glue is bonded to the TPU surface layer, extruded and calendered at an extrusion temperature of 190°C and an extrusion pressure of 15Pa, and cooled That is to say; the cloth surface temperature of the fabric layer is 130° C. during the extrusion and calendering compounding process.

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Abstract

The invention discloses a temperature-resistant TPU light conveyor belt and a manufacturing method thereof. The conveyor belt comprises a fabric layer, a bonding layer and a surface layer in sequence,and the bonding layer is of a double interpenetrating network structure formed by curing nanocellulose, waterborne TPU glue and a curing agent; by means of the extrusion calendering process, the temperature-resistant TPU light conveyor belt is obtained, on the condition that the processing property and other mechanical properties of the TPU light conveyor belt are not affected, the strength of the waterborne TPU glue is improved, and ageing and cracking of the waterborne TPU glue are avoided; meanwhile, the conveyor belt conforms to American FDA food hygienic standards and European Union REACH laws, safety and environmental friendliness are achieved, and the conveyor belt is a durable conveying product for the food industry.

Description

technical field [0001] The invention belongs to the technical field of conveyor belt manufacture, and in particular relates to a temperature-resistant TPU light conveyor belt and a manufacturing method thereof. Background technique [0002] At present, TPU light-duty conveyor belts generally use polyester fabric as the skeleton material, and are mainly used to transport light and medium-quality materials. TPU light-duty conveyor belts are widely used for their light weight, long life, easy installation, and less friction. Food processing, tobacco and other industries. In the food baking industry, the existing TPU conveyor belt runs in a long-term high-temperature environment, and the adhesive layer is prone to aging and failure, resulting in the separation of the TPU surface layer and the skeleton material. Therefore, making a temperature-resistant TPU conveyor belt is suitable for food baking. industry is important. Nanocellulose is a water-soluble material. After being d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65G15/30
CPCB65G15/30
Inventor 范冰
Owner SHANGHAI YONGLI TRANSPORTATION SYST CO LTD
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