Novel low-temperature-adhesion environment-friendly hot-melt adhesive for express logistics, and preparation method and application of the hot-melt adhesive

An environmentally friendly, hot-melt adhesive technology, applied in the direction of adhesive types, rosin adhesives, adhesive additives, etc., can solve the problems of customer information leakage, limited development of logistics enterprises, and infeasible low-temperature lamination temperature, etc. Achieve the effect of stable physical and chemical properties, good substrate destruction effect, and good bonding effect

Inactive Publication Date: 2018-08-17
GUANGDONG RURGA NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These traditional SBC hot-melt adhesives are prone to the following problems when used in winter or low-temperature areas: 1) Poor low-temperature lamination. Generally, the lamination temperature required for hot-melt adhesives for express bags is 0-40°C. The combined temperature is -5-40°C, low temperature labeling cannot achieve the expected effect of logistics enterprises
2) There is a risk of loss of viscosity. The express delivery may experience a low temperature environment during transportation. If the label falls off, it may easily cause customer information leakage or failure to deliver, etc.
3) The development of logistics enterprises is limited, and there is always no feasible solution for low-temperature bonding temperature

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A method for preparing a brand-new low-temperature laminating environment-friendly hot-melt adhesive for express logistics, comprising the following steps.

[0027] Put 20% KN4010 naphthenic oil (Karamay), 20% high molecular polymer (Yuehua 1126), 10% high molecular polymer (SSBR-1205), 10% low molecular liquid rubber and 0.5% anti Mix the oxidant evenly, heat to 120-170°C, and stir until each component is completely melted while vacuuming; then add 39.5% tackifying resin, and heat to melt at 120-170°C; vacuumize the reaction system until there are no bubbles, Stir and mix evenly to obtain an environmentally friendly hot melt adhesive that can be bonded at low temperature for express delivery.

[0028] The hot-melt adhesive prepared in this example is suitable for scraping equipment. Put the hot-melt adhesive in a hot-melt adhesive tank and keep the temperature at 170°C until the rubber particles are completely melted before use. The thickness of the adhesive on the sub...

Embodiment 2

[0030] A method for preparing a brand-new low-temperature laminating environment-friendly hot-melt adhesive for express logistics, comprising the following steps.

[0031] Put 15% KN4006 naphthenic oil (Karamay), 20% high molecular polymer (Yuehua 1126), 10% low molecular liquid rubber and 10% high molecular polymer (SSBR-1205), 0.5% antioxidant (BASF, Antioxidant 1726) Mix well, heat to 120-170°C, stir while vacuuming until all components are completely melted; then add 44.5% tackifying resin, heat to melt at 120-170°C; The system is evacuated until there are no air bubbles, and the mixture is evenly stirred to obtain an environmentally friendly hot melt adhesive that can be laminated at low temperature.

[0032] The hot melt adhesive prepared in this example is suitable for scraping equipment. Put the hot melt adhesive in a hot melt adhesive tank and keep the temperature at 160°C until the rubber particles are completely melted before use. The width of the glue is about 10mm...

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Abstract

The invention discloses a novel low-temperature-adhesion environment-friendly hot-melt adhesive for express logistics, and a preparation method and application of the hot-melt adhesive. The hot-melt adhesive is prepared from the following steps: 10-30% of naphthenic oil, 20-50% of a high-molecular polymer, 5-25% of a low-molecular toughening agent, 30-60% of tackifying resin and 0.2-0.8% of an antioxidant. According to the hot-melt adhesive provided by the invention, the low-temperature adhesion temperature for express polyethylene (PE) seal is low to -10 DEG C, the low-temperature adhesion temperature for logistics waybills is low to -20 DEG C, and the environment-friendly hot-melt adhesive has an adhesion temperature 10 DEG C lower than the adhesion temperature of an adhesive with a conventional styreneic block copolymer (SBC) formula. The hot-melt adhesive provided by the invention overcomes the problems that the existing hot-melt adhesive with an SBC system cannot achieve low-temperature quick sticking and low-temperature adhesion.

Description

technical field [0001] The invention belongs to the field of polymer materials, and in particular relates to a hot melt adhesive, in particular to a brand-new low-temperature bonding express logistics environment-friendly hot melt adhesive and its preparation method and application. Background technique [0002] Hot melt adhesives are widely used in logistics transportation, express delivery and other fields. With the increasing social demand for online shopping and express logistics, the use of hot melt adhesives has greatly accelerated production efficiency. This type of hot melt adhesive mainly uses SBC system, which is made of SBS or SIS rubber as the basic raw material, and then added a certain proportion of naphthenic oil, tackifying resin and antioxidant. These traditional SBC hot-melt adhesives are prone to the following problems when used in winter or low-temperature areas: 1) Poor low-temperature lamination. Generally, the lamination temperature required for hot-me...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J157/02C09J193/04C09J11/08
CPCC08L2205/035C09J11/08C09J157/02C09J193/04C08L91/00C08L9/06
Inventor 万诚彭斯俊陈兴
Owner GUANGDONG RURGA NEW MATERIAL TECH
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