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High-performance UV-cured polyacrylate self-foamed damping material and preparation method thereof

A technology of polyacrylate and damping materials, which is applied in the field of damping materials, can solve environmental pollution and other problems, and achieve the effects of good wetting ability, good energy absorption ability, and high cohesive strength

Inactive Publication Date: 2017-02-08
JIANGSU DAOQ NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The damping materials reported in these patents have good damping performance, heat resistance and mechanical toughness, but the materials reported in the patents are solvent-based damping materials, which have serious environmental pollution problems

Method used

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  • High-performance UV-cured polyacrylate self-foamed damping material and preparation method thereof
  • High-performance UV-cured polyacrylate self-foamed damping material and preparation method thereof
  • High-performance UV-cured polyacrylate self-foamed damping material and preparation method thereof

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preparation example Construction

[0042] The present invention also provides a kind of preparation method of high performance UV curing polyacrylate self-foaming damping material, which comprises the following steps:

[0043] 1) Add polyacrylate elastomer and reactive diluent to the reaction kettle, and continuously stir and swell at room temperature to form a uniform acrylic matrix resin;

[0044] 2) Add the photoinitiator to the acrylic matrix resin obtained in step 1), and stir and dissolve evenly;

[0045] 3) Add the nano hollow inorganic particles pretreated by the silane coupling agent 3) into step 2) into the uniformly dissolved resin in batches, and stir to uniformly disperse and coat the nano hollow inorganic particles in the step 2) 2) In the obtained resin, a high-performance UV curable polyacrylate self-foaming damping material composition is obtained;

[0046] 4) Apply the high-performance UV-curable polyacrylate self-foaming damping material composition obtained in step 3) evenly on the release ...

Embodiment 1

[0048] A kind of preparation method of high-performance UV curing polyacrylate self-foaming damping material, it comprises the following steps:

[0049] 1) Take each component by the following parts by weight:

[0050] Polyacrylate elastomer: 20 parts;

[0051] Active diluent: 75 parts;

[0052] Photoinitiator: 0.5 part;

[0053] Nano hollow inorganic particles: 1 part;

[0054] Described polyacrylate elastomer is the copolymer of epoxy acrylate and polyurethane acrylate, and its structure is as follows:

[0055]

[0056] Wherein, the reactive diluent is a mixture of isooctyl acrylate and vinyl acetate in a mass ratio of 2:1, the photoinitiator is 2,4,6-trimethylbenzoyl-diphenylphosphine oxide, and the nano hollow inorganic particles It is nano hollow titanium dioxide.

[0057] 2) Add polyacrylate elastomer and reactive diluent to the reaction kettle, and continuously stir and swell at room temperature to form a uniform acrylic matrix resin;

[0058] 3) Add the photoi...

Embodiment 2

[0066] A kind of preparation method of high-performance UV curing polyacrylate self-foaming damping material, it comprises the following steps:

[0067] 1) Take each component by the following parts by weight:

[0068] Polyacrylate elastomer: 30 parts;

[0069] Active diluent: 70 parts;

[0070] Photoinitiator: 0.8 part;

[0071] Nano hollow inorganic particles: 5 parts;

[0072] Described linear polyacrylate elastomer is the copolymer of epoxy acrylate and urethane acrylate, and its structure is as follows:

[0073]

[0074] Wherein, the reactive diluent is a mixture of styrene and vinyl acetate in a mass ratio of 2:1, the photoinitiator is benzoylformate, and the nano hollow inorganic particles are nano hollow silicon dioxide.

[0075] 2) Add polyacrylate elastomer and reactive diluent to the reaction kettle, and continuously stir and swell at room temperature to form a uniform acrylic matrix resin;

[0076] 3) Add the photoinitiator to the acrylic base resin obtaine...

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Abstract

The invention discloses a high-performance UV-cured polyacrylate self-foamed damping material, which comprises the following components, by weight part, 20-30 parts of polyacrylate elastomer, 70-75 parts of a reactive diluent, 0.5-0.8 part of a photoinitiator, and 1-5 parts of nanometer hollow inorganic particles. UV polymerization is adopted for preparing the high-performance damping material, and the damping material is completely free of solvent and causes no pollution. Nanometer hollow inorganic particles are taken as an inorganic bulk foaming agent, and through control of the addition amount of the nanometer hollow inorganic particles, the density of the damping material can be accurately controlled according to the requirement, and the loss factor of the damping material can be increased at the same time. The damping material is excellent in initial adhesion, lasing adhesion, peel strength, and interfacial wettability and high in loss factor.

Description

technical field [0001] The invention relates to the field of damping materials, in particular to a high-performance UV-cured polyacrylate self-foaming damping material and a preparation method thereof. Background technique [0002] The vibration and noise generated by mechanical operation not only pollute the environment, but also affect the machining accuracy and product quality of the machine, accelerate the fatigue damage of the mechanical structure, and shorten the service life of the machine. Damping material is a material that converts solid mechanical vibration energy into heat energy and dissipates it. It is mainly used for vibration and noise control. The design principle of the damping material is: try to make the hysteresis loss as large as possible, the loss modulus is high, the storage modulus is low, and the effective damping temperature range is wide. The damping performance of a damping material can be measured in terms of its ability to dissipate vibrationa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J7/04C09D4/02C09D4/06C09D7/12C08L67/02
CPCC08J7/0427C09D4/06C08F285/00
Inventor 赵辉舒秀丽郑国毜
Owner JIANGSU DAOQ NEW MATERIAL TECH CO LTD
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