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Hot melt adhesive for siphon plate and preparation method of hot melt adhesive

A hot melt adhesive and siphon technology, applied in the direction of adhesives, non-polymer adhesive additives, adhesive types, etc., can solve the problem of poor wettability of non-polar materials, decreased adhesion performance, high surface tension, etc. To solve the problem of solvent volatilization and recovery, reduce the risk of poisoning, and achieve the effect of safe and efficient production

Pending Publication Date: 2022-07-22
FOSHAN XINTAO NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most of the adhesives for non-polar materials are water-based polyurethane (WPU) adhesives, but their surface tension is large, the wettability to non-polar materials is not good, and there are deficiencies such as poor water resistance and heat resistance. It is easy to hydrolyze under cooking conditions, resulting in a decrease in bonding performance, and it is difficult to meet the composite assembly requirements of the siphon board

Method used

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  • Hot melt adhesive for siphon plate and preparation method of hot melt adhesive
  • Hot melt adhesive for siphon plate and preparation method of hot melt adhesive

Examples

Experimental program
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Effect test

Embodiment 1

[0027] A hot melt adhesive for a siphon board, comprising the following raw materials by weight: 30 parts of the first EVA resin, 20 parts of the second EVA resin, 45 parts of tackifying resin, 5 parts of Fischer-Tropsch wax and 0.3 part of antioxidant;

[0028] Wherein, the VA content in the raw material used for the first EVA resin is 28wt%, and the first EVA resin is an EVA resin with a melt index of 145g / 10min; the VA content in the raw material used for the second EVA resin is 18wt%, and the second EVA resin has a VA content of 18wt%. The EVA resin is EVA resin with a melt index of 395; the tackifying resin is 15 parts of a first hydrogenated petroleum resin with a softening point of 100° C. and 20 parts of a second hydrogenated petroleum resin with a softening point of 150° C.

[0029] Specifically, the Fischer-Tropsch wax is Sasol Fischer-Tropsch wax H1. The antioxidant is antioxidant 1010.

[0030] The preparation method of above-mentioned hot melt adhesive for siphon...

Embodiment 2

[0036] A hot-melt adhesive for a siphon board, comprising the following raw materials by weight: 25 parts of the first EVA resin, 15 parts of the second EVA resin, 30 parts of tackifying resin, 6 parts of Fischer-Tropsch wax and 0.1 part of antioxidant;

[0037] Wherein, the VA content in the raw material used for the first EVA resin is 25wt%, and the first EVA resin is the EVA resin with a melt index of 155g / 10min and 395g / 10min with a mass ratio of 1:1; the raw material used for the second EVA resin The VA content is 15wt%, and the second EVA resin is an EVA resin with a melt index of 155g / 10min and 405g / 10min with a mass ratio of 1:1; the tackifying resin is 10 parts of the first EVA resin with a softening point of 98°C. Hydrogenated petroleum resin and 20 parts of a second hydrogenated petroleum resin having a softening point of 130°C.

[0038]Specifically, the Fischer-Tropsch wax is one or a mixture of two or more of Sasol Fischer-Tropsch Wax H1, Sasol Fischer-Tropsch Wax...

Embodiment 3

[0045] A hot-melt adhesive for a siphon board, comprising the following raw materials by weight: 35 parts of the first EVA resin, 25 parts of the second EVA resin, 50 parts of tackifying resin, 10 parts of Fischer-Tropsch wax and 1 part of antioxidant;

[0046] Wherein, the VA content in the raw material used for the first EVA resin is 30wt%, and the first EVA resin is an EVA resin with a melt index of 405g / 10min; the VA content in the raw material used for the second EVA resin is 20wt%, and the second EVA resin has a VA content of 20wt%. The EVA resin is an EVA resin with a melt index of 155 g / 10min; the tackifying resin is 20 parts of a first hydrogenated petroleum resin with a softening point of 110° C. and 30 parts of a second hydrogenated petroleum resin with a softening point of 150° C.

[0047] Specifically, the Fischer-Tropsch wax is Sasol Fischer-Tropsch wax SX-105. The antioxidant is antioxidant 1010.

[0048] The preparation method of above-mentioned hot melt adhes...

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Abstract

The invention discloses a hot melt adhesive for a siphon plate and a preparation method of the hot melt adhesive. The hot melt adhesive is prepared from the following raw materials: first EVA (Ethylene Vinyl Acetate) resin, second EVA resin, tackifying resin, Fischer-Tropsch wax and an antioxidant, wherein the content of VA in the first EVA resin is 25-30 wt%, and the content of VA in the second EVA resin is 15-20 wt%; the tackifying resin comprises a first tackifying resin with a softening point of 98-110 DEG C and a second tackifying resin with a softening point of 130-150 DEG C. The hot melt adhesive can improve the cohesiveness of the siphon plate, and has good chemical stability, aging resistance and ozone resistance. The preparation method of the hot melt adhesive comprises the following steps: mixing the Fischer-Tropsch wax and the oxidizing agent, adding the second tackifying resin and the first EVA resin, adding the first tackifying resin and the second EVA resin, heating and stirring to completely melt the raw materials, filtering, and granulating to obtain the hot melt adhesive for the siphon plate, so that environment-friendly, non-toxic, safe and efficient production is realized.

Description

technical field [0001] The invention relates to the technical field of hot melt adhesive, in particular to a hot melt adhesive for a siphon board and a preparation method thereof. Background technique [0002] Siphon drainage board is an important product of rainwater collection system (siphon drainage system) in sponge city construction in recent years. The siphon drainage board is composed of polymer HDPE / LDPE concave-convex plastic drainage board and self-clay cloth. About HDPE / LDPE material: HDPE is a highly crystalline, non-polar thermoplastic resin formed by copolymerization of ethylene. LDPE is abbreviated as low density polyethylene, also known as high pressure polyethylene. It is the lightest variety of polyethylene resins. [0003] Due to the low surface energy and non-polar polyethylene content of HDPE / LDPE, siphon drainage boards are difficult to bond. At present, adhesives are commonly used to compound a variety of different non-polar films together to obtain...

Claims

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Application Information

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IPC IPC(8): C09J123/08C09J157/02C09J11/08C09J11/06
CPCC09J123/0853C09J11/08C09J11/06C08L2205/025C08L2201/08C08L23/0853C08L57/02C08L91/06C08K5/1345
Inventor 郑昭卢森高鹏
Owner FOSHAN XINTAO NEW MATERIAL TECH
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