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Environment-friendly hot-melt adhesive for paper-plastic compounding

A paper-plastic composite, environmentally friendly technology, applied in the direction of adhesive types, adhesives, adhesive additives, etc., to achieve the effect of reducing cost and good bonding performance

Inactive Publication Date: 2015-09-09
合肥卓元科技服务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The most commonly used matrix resins for the production of hot melt adhesives are high-molecular organic substances such as ethylene and its copolymers, polyolefins, styrene and its block copolymers. Due to their structural characteristics, they cannot be degraded or hydrolyzed by microorganisms in the environment. Therefore, it will bring many unfavorable factors to the protection of the environment and the recycling of materials.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] An environment-friendly hot-melt adhesive for paper-plastic composite, consisting of the following components in parts by weight:

[0014] Wheat modified starch: 50, PLA resin: 20, terpene resin: 15,

[0015] Microcrystalline Paraffin: 10, Dibutyl Phthalate: 4,

[0016] 2,6-di-tert-butyl-p-cresol: 1, talc: 2.

[0017] Mix the modified wheat starch with biodegradable polyester PLA, tackifier, viscosity modifier, plasticizer, antioxidant, and filler in proportion, and add them to a twin-screw extruder for blending and extrusion. The temperature from the feeding port to the machine head is 120° C., the screw speed is 60 rpm, and the material residence time is 4 minutes.

Embodiment 2

[0019] An environment-friendly hot-melt adhesive for paper-plastic composite, consisting of the following components in parts by weight:

[0020] Wheat modified starch: 55, PLA resin: 25, terpene resin: 20,

[0021] Microcrystalline Paraffin: 8, Dibutyl Phthalate: 5,

[0022] 2,6-di-tert-butyl-p-cresol: 0.5, talc: 1.

[0023] Mix the modified wheat starch with biodegradable polyester PLA, tackifier, viscosity modifier, plasticizer, antioxidant, and filler in proportion, and add them to a twin-screw extruder for blending and extrusion. The temperature from the feeding port to the machine head is 130° C., the screw speed is 70 rpm, and the material residence time is 5 minutes.

Embodiment 3

[0025] An environment-friendly hot-melt adhesive for paper-plastic composite, consisting of the following components in parts by weight:

[0026] Wheat modified starch: 60, PLA resin: 30, terpene resin: 18,

[0027] Microcrystalline Paraffin: 5, Dibutyl Phthalate: 3,

[0028] 2,6-di-tert-butyl-p-cresol: 0.8, talc: 4.

[0029] Mix the modified wheat starch with biodegradable polyester PLA, tackifier, viscosity modifier, plasticizer, antioxidant, and filler in proportion, and add them to a twin-screw extruder for blending and extrusion. The temperature from the feeding port to the machine head is 100-150°C, the screw speed is 60-80rpm, and the material residence time is 4-6 minutes.

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PUM

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Abstract

The invention discloses an environment-friendly hot-melt adhesive for paper-plastic compounding, which is composed of the following components in parts by weight: 50-60 parts of wheat modified starch, 20-30 parts of PLA (polylactic acid) resin, 15-20 parts of terpene resin, 5-10 parts of microcrystalline wax, 2-6 parts of dibutyl phthalate, 0.5-1 part of 2,6-di-tert-butyl-para-cresol and 1-5 parts of talcum powder. By using the modified wheat starch as the main base material, the cost of the product is greatly lowered. The hot-melt adhesive has favorable bonding performance, and can be widely used for paper-plastic compounding packaging.

Description

technical field [0001] The invention relates to the technical field of hot-melt adhesives, in particular to an environment-friendly hot-melt adhesive for paper-plastic composite. Background technique [0002] In the production of hot melt adhesives, in the past, only its adhesive properties were generally considered, and its degradation was not considered. In recent years, with the sharp increase in the use of hot melt adhesives, the problems caused by them have become increasingly prominent. The most commonly used matrix resins for the production of hot melt adhesives are high-molecular organic substances such as ethylene and its copolymers, polyolefins, styrene and its block copolymers. Due to their structural characteristics, they cannot be degraded or hydrolyzed by microorganisms in the environment. Therefore, many unfavorable factors will be brought to the protection of the environment and the recycling of materials. With the improvement of environmental regulations a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J103/04C09J167/04C09J11/04C09J11/06C09J11/08
Inventor 任磊
Owner 合肥卓元科技服务有限公司
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