A mono-component moisture-curing polyolefin hot-melt adhesive and a preparing method thereof

A moisture-curing, one-component technology, applied in the direction of adhesives, mineral oil hydrocarbon copolymer adhesives, adhesive types, etc., can solve the requirements of poor high temperature resistance, lack of reactive groups, and failure to meet high temperature resistance requirements and other problems, to achieve the effect of excellent final bonding strength, high bonding strength, and high bonding strength

Active Publication Date: 2017-03-22
重庆中科力泰高分子材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, polyolefin hot melt adhesives lack reactive groups during the curing process of the adhesive layer, so that after the hot melt adhesi

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] (1) Accurately weigh the following mass ratio raw materials

[0023] SIS resin 25%;

[0024] Hydrogenated petroleum resin 32%;

[0025] APAO resin 40%;

[0026] Initiator 0.8%;

[0027] Coupling agent 1.6%;

[0028] Antioxidant 0.8%;

[0029] (2) Heat and stir the above SIS resin, hydrogenated petroleum resin, and plasticizer until completely melted, then cool down to 70-80°C; add coupling agent, mix and stir at 80-90°C for 20 minutes, then add initiator, 80°C-100°C Stir and react for 3 hours; add APAO resin and antioxidant, and stir for 40 minutes at 150-170°C; transfer the resulting mixture to an aluminum foil packaging bag and seal it to obtain a one-component moisture-curing polyolefin hot melt adhesive. Nitrogen protection was used throughout the reaction.

Embodiment 2

[0031] (1) Accurately weigh the following mass ratio raw materials

[0032] SIS resin 25%;

[0033] Hydrogenated petroleum resin 40%;

[0034] APAO resin 25%;

[0035] Plasticizer: 5.8%;

[0036] Initiator 0.8%;

[0037] Coupling agent 1.6%;

[0038] Antioxidant 0.8%;

[0039] (2) Heat and stir the above SIS resin, hydrogenated petroleum resin, and plasticizer until completely melted, then cool down to 70-80°C; add coupling agent, mix and stir at 80-90°C for 20 minutes, then add initiator, 80°C-100°C Stir and react for 3 hours; add APAO resin and antioxidant, and stir for 40 minutes at 150-170°C; transfer the resulting mixture to an aluminum foil packaging bag and seal it to obtain a one-component moisture-curing polyolefin hot melt adhesive. Nitrogen protection was used throughout the reaction.

Embodiment 3

[0041] (1) Accurately weigh the following mass ratio raw materials

[0042] SIS resin 25%;

[0043] Hydrogenated petroleum resin 37%;

[0044] APAO resin 32.5%;

[0045] Plasticizer: 2.3%;

[0046] Initiator 0.8%;

[0047] Coupling agent 1.6%;

[0048] Antioxidant 0.8%;

[0049] (2) Heat and stir the above SIS resin, hydrogenated petroleum resin, and plasticizer until completely melted, then cool down to 70-80°C; add coupling agent, mix and stir at 80-90°C for 20 minutes, then add initiator, 80°C-100°C Stir and react for 3 hours; add APAO resin and antioxidant, and stir for 40 minutes at 150-170°C; transfer the resulting mixture to an aluminum foil packaging bag and seal it to obtain a one-component moisture-curing polyolefin hot melt adhesive. Nitrogen protection was used throughout the reaction.

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PUM

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Abstract

The invention belongs to the technical field of polyolefin hot-melt adhesives, and particularly relates to a mono-component moisture-curing polyolefin hot melt adhesive. The hot-melt adhesive is formed from, by mass, 25% of a styrene-isoprene-styrene block copolymer, 25-40% of an alpha-amorphous olefin copolymer, 32-41% of hydrogenated petroleum resin, 0-5.8% of a plasticizer, 0.8% of an initiator, 1.6% of a coupling agent and 0.8% of an antioxidant. Beneficial effects of the hot-melt adhesive are that (1) construction is convenient, initial adhesion is good and the hot-melt adhesive is suitable for rapid streamline production, (2) adhesive strength is high, final adhesive strength is excellent and the hot-melt adhesive still has high adhesive strength at a high temperature that is 90 DEG C, and (3) the hot-melt adhesive is suitable for adhering low-polarity materials.

Description

technical field [0001] The invention belongs to the field of hot-melt adhesives, in particular to a single-component moisture-curing polyolefin hot-melt adhesive and a preparation method thereof. Background technique [0002] Hot melt adhesives have the advantages of convenient use, high initial bonding strength, and the ability to adapt to fast industrial assembly line operations. Polyolefin hot-melt adhesive is a low-polarity adhesive, which has a good effect on bonding PP and PE materials. Reactive polyolefin hot-melt adhesive, due to the formation of chemical bonds, can greatly enhance the final bonding strength to low-polarity materials, and has high bonding strength under high temperature conditions, which overcomes the shortcomings of polyolefin hot-melt adhesives that are not resistant to high temperatures. Since PE and PP materials are widely used in various occasions, the status of low-polarity polyolefin hot melt adhesives is becoming more and more important. ...

Claims

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Application Information

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IPC IPC(8): C09J123/00C09J157/02C09J153/02
CPCC08L2201/08C08L2205/035C09J123/00C09J157/02C08L57/02C08L53/02C08L23/00
Inventor 刘志林李有刚冯丽沈巧陈斌杨芳谭雪梅
Owner 重庆中科力泰高分子材料有限公司
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