Oil-seepage-resistant, low-temperature-resistant and high-stripping-force hot-melt pressure-sensitive adhesive and preparation method of thereof

A technology of hot-melt pressure-sensitive adhesives and low temperature resistance, which is applied in the direction of adhesives, polymer adhesive additives, adhesive types, etc., and can solve the problems of unstable adhesive performance, downstream products, unstable adhesive performance, etc. Achieve good performance balance, reduce system viscosity, and achieve high peeling force

Inactive Publication Date: 2020-09-01
浙江金嘉科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned unstable changes in adhesive properties are unacceptable for the application of downstream products
If a hot-melt pressure-sensitive adhesive whose plasticizer does not migrate to paper substrates is developed, it is expected to solve the problem of unstable bonding performance

Method used

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  • Oil-seepage-resistant, low-temperature-resistant and high-stripping-force hot-melt pressure-sensitive adhesive and preparation method of thereof
  • Oil-seepage-resistant, low-temperature-resistant and high-stripping-force hot-melt pressure-sensitive adhesive and preparation method of thereof
  • Oil-seepage-resistant, low-temperature-resistant and high-stripping-force hot-melt pressure-sensitive adhesive and preparation method of thereof

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preparation example Construction

[0033] The present invention also discloses a preparation method of the above-mentioned hot-melt pressure-sensitive adhesive with oil seepage resistance, low temperature resistance and high peeling force, which specifically includes the following steps:

[0034] Step A, add plasticizer in the formula amount, low molecular weight synthetic liquid polybutadiene rubber, antioxidant, 25%-40% tackifying resin into the reaction kettle, heat up while stirring, and set the speed at 30- 50rpm, the material temperature is controlled at 140-150°C, the reactor is sealed, vacuumed for 0.5h-1.0h, and the reaction pressure is controlled to be ≤-0.09MPa;

[0035] Step B, close the vacuum, open the reaction kettle, after the tackifying resin 1 is completely melted and mixed evenly with the plasticizer and antioxidant, add thermoplastic elastomer 1, thermoplastic elastomer 2 and thermoplastic elastomer 3, and heat up to 150 ℃-155℃ and heat preservation and vacuum stirring until thermoplastic el...

Embodiment 1

[0039] In the present embodiment, get the raw material of following weight portion:

[0040]

[0041]

[0042] Wherein, in the preparation steps of this embodiment, preferably, the thermoplastic elastomer is selected from styrene-isoprene-styrene copolymer; the styrene content is 13.0%-17.0% (preferably 17% ), the styrene-isoprene diblock content is 40.0%-55.0% (preferably 55%).

[0043] The thermoplastic elastomer is selected from styrene-isoprene-styrene copolymer; wherein the styrene content is 17.0%-21.0% (preferably 21%) by weight percentage, and the styrene block content is 28.0%-32.0% % (preferably 32%).

[0044]The thermoplastic elastomer three is selected from styrene-butadiene-styrene copolymer; wherein the styrene content is 33.0%-37.0% (preferably 37%) by weight percentage, and the styrene block content is 67.0%-73.0% (preferably 73%).

[0045] The plasticizer is preferably a synthetic base oil.

[0046] Tackifying resin - preferably hydrogenated dicyclop...

Embodiment 2

[0056] In the present embodiment, get the raw material of following weight portion:

[0057]

[0058] Wherein, preferably, thermoplastic elastomer one is selected from styrene-isoprene-styrene copolymer; Styrene content is 13.0%-17.0% (preferably 15%) by weight percentage, styrene-isoprene The olefinic diblock content ranges from 40.0% to 55.0% (preferably 53%).

[0059] The thermoplastic elastomer is selected from styrene-isoprene-styrene copolymer; wherein the styrene content is 17.0%-21.0% (preferably 19%) by weight, and the styrene block content is 28.0%-32.0 % (preferably 30%).

[0060] The thermoplastic elastomer three is selected from styrene-butadiene-styrene copolymer; wherein the styrene content is 33.0%-37.0% (preferably 35%) by weight percentage, and the styrene block content is 67.0%-73.0% (preferably 70%).

[0061] The plasticizer is preferably a hydronaphthenic oil.

[0062] Tackifying resin - preferably hydrogenated C9 petroleum resin.

[0063] Tackifyi...

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Abstract

The invention discloses an oil-seepage-resistant, low-temperature-resistant and high-stripping-force hot-melt pressure-sensitive adhesive and a preparation method thereof. The hot-melt pressure-sensitive adhesive is prepared from the following raw materials in parts by weight: 5-30 parts of thermoplastic elastomer I, 5-30 parts of thermoplastic elastomer II, 5-30 parts of thermoplastic elastomer III, 0-5 parts of a plasticizer, 5-20 parts of low molecular weight synthetic liquid polybutadiene rubber, 20 to 40 parts of tackifying resin I, 10 to 30 parts of tackifying resin II, and 0.2 to 2 parts of an antioxidant. According to the oil-seepage-resistant low-temperature-resistant high-stripping-force hot-melt pressure-sensitive adhesive and the preparation method thereof disclosed by the invention, the technical requirements of downstream application on oil seepage resistance and high-stripping-force low temperature resistance are met, and the oil seepage resistance, high stripping forceand low temperature resistance of a hot-melt pressure-sensitive adhesive product are effectively guaranteed.

Description

technical field [0001] The invention belongs to the technical field of polymer adhesives, in particular to a hot-melt pressure-sensitive adhesive with oil leakage resistance, low temperature resistance and high peeling force and a preparation method thereof. Background technique [0002] Hot-melt pressure-sensitive adhesive is a kind of solvent-free, pollution-free and easy-to-use adhesive based on thermoplastic rubber, which integrates the characteristics of hot-melt adhesive and pressure-sensitive adhesive. This type of adhesive is applied in a molten state, and after cooling and hardening, light finger pressure can be applied to quickly bond. At present, hot-melt pressure-sensitive adhesives are widely used in automobiles, hygiene products, adhesive tapes, labels, medical care, surface protective films, wood processing and shoemaking. [0003] In recent years, with the improvement of people's living standards, the technical field of polymer bonding has higher and higher ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J153/02C09J109/00C09J145/00C09J157/00C09J11/08
CPCC08L2205/025C08L2205/035C08L2207/04C09J11/08C09J145/00C09J153/02C09J157/00C08L53/02C08L57/02C08L9/00C08L45/00C08L91/00C08L91/06
Inventor 王泽洲
Owner 浙江金嘉科技有限公司
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