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Irradiation-resistant hot melt adhesive and preparation method thereof

A technology for radiation-resistant rubber and hot melt adhesive, applied in the field of hot sol, can solve the problems of reduced adhesion and hot melt adhesive failure, and achieves the effect of maintaining adhesion performance, low production energy consumption, and avoiding product purification.

Active Publication Date: 2013-08-07
CHINA NUCLEAR POWER ENG CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the main components of ordinary hot melt adhesives are low molecular weight methyl methacrylate and tackifying resins, these two types of substances are easily crosslinked after irradiation, resulting in a decrease in adhesion and even failure of the hot melt adhesive.

Method used

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  • Irradiation-resistant hot melt adhesive and preparation method thereof
  • Irradiation-resistant hot melt adhesive and preparation method thereof
  • Irradiation-resistant hot melt adhesive and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Raw material components and dosage:

[0049] Ethylene-vinyl acetate (trade name EVA150) 15g,

[0050] Ethylene-vinyl acetate (trade name EVA210) 20g,

[0051] Dimer acid type polyamide resin (trade name H-120) 30g,

[0052] Butyl rubber (trade name 268) 7g,

[0053] EPDM rubber (4551A) 5g,

[0054] Terpene resin (trade name T100) 20g,

[0055] Microcrystalline wax 1g,

[0056] Tetrakis[β-(3,5-tertiary butyl-4-hydroxyphenyl) propionate] pentaerythritol ester (trade name Antioxidant 1010) 1g,

[0057] Tributyl citrate 1g.

[0058] Preparation method: Weigh each component according to the above-mentioned amount, add it to a twin-screw extruder for mixing, the mixing temperature is 140°C, mix twice, use circulating water to cool the hob and cut into pellets to obtain radiation-resistant hot melt Adhesive products, use the packaging box to store the hot melt adhesive obtained after granulation. The obtained radiation-resistant hot melt adhesive product had a softenin...

Embodiment 2

[0067] Raw material components and dosage:

[0068] Ethylene-vinyl acetate (trade name EVA210) 10g,

[0069] Ethylene-vinyl acetate (trade name EVA450) 10g,

[0070] Dimer acid type polyamide resin (trade name LR-PA-170) 40g,

[0071] Butyl rubber (trade name 268) 10g,

[0072] EPDM rubber (3722P) 10g,

[0073] Rosin 17g,

[0074] Microcrystalline wax 1g,

[0075] Tetrakis[β-(3,5-tertiary butyl-4-hydroxyphenyl) propionate] pentaerythritol ester (trade name Antioxidant 1010) 1g,

[0076] Tributyl citrate 1g.

[0077] Preparation method: same as Example 1, except that the mixing temperature is 150°C. The softening point of the obtained radiation-resistant hot-melt adhesive product is 120° C., and the viscosity is 108000 mpa.s.

Embodiment 3

[0079] Raw material components and dosage:

[0080] Ethylene-vinyl acetate (trade name EVA150) 15g,

[0081] Ethylene-vinyl acetate (trade name EVA210) 15g,

[0082] Dimer acid type polyamide resin (trade name H-120) 20g,

[0083] Butyl rubber (trade name 268) 20g,

[0084] EPDM rubber (4551A) 10g,

[0085] Rosin 5g,

[0086] Terpene resin (trade name T100) 4g,

[0087] Polyethylene wax 1g,

[0088] N,N-bis-[3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionyl]hexamethylenediamine 9g,

[0089] Tributyl citrate 0.5g,

[0090] Acetyl tributyl citrate 0.5g.

[0091] Preparation method: the same as in Example 1, the difference is that before mixing, ethylene-vinyl acetate, butyl rubber and EPDM rubber are put into an internal mixer for banburying and granulation, and the banburying temperature is 80 ℃, and then mixed with other materials for kneading. The obtained radiation-resistant hot melt adhesive product has a softening point of 115°C and a viscosity of 78000mpa.s.

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Abstract

The invention relates to an irradiation-resistant hot melt adhesive, which comprises the following raw material ingredients by weight percentage: 10-40% of ethane-vinyl acetate copolymer, 20-50% of polyamide, 5-30% of irradiation-resistant rubber, 1-30% of adhesion agent, 1-10% of wax, 1-10% of stabilizing agent and 10% of plasticizer. The invention also provides a preparation method of irradiation-resistant hot melt adhesive. Compared with the present hot melt adhesive, the irradiation-resistant hot melt adhesive provided by the invention has the advantages of good caking property, low temperature-resistant performance and various oil products resistance. In addition, the preparation technology of the present invention is simple and stable and has good repeatability without harmful gas generation and harm to environment, low production energy consumption, and good economic effect and industrial production prospect.

Description

technical field [0001] The invention belongs to the technical field of hot melt adhesives, and in particular relates to a radiation-resistant hot melt adhesive and a preparation method thereof. Background technique [0002] The energy crisis is a worldwide problem, and the development of nuclear energy is an important way to solve the energy crisis. All countries in the world are vigorously developing nuclear power construction. At present, the total amount of French nuclear power has accounted for 70% of the total power generation, the United States accounted for 20%; Japan accounted for 34%; South Korea accounted for 40%; Russia accounted for 17%. my country's nuclear power capacity only accounts for 2%. Actively promoting nuclear power construction and realizing localization is an important part of my country's national economic construction. According to the power development plan, my country's nuclear power installed capacity will account for 4% of the total installed ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J123/08C09J131/04C09J177/06C09J177/02C09J11/08
Inventor 曾婉钟晓光周晓斌姜庆水李笑镭崔育忠熊宇
Owner CHINA NUCLEAR POWER ENG CO LTD
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