UV polymerization type body foamed damping material and preparation method thereof

A technology of body foaming and damping materials, applied in the field of damping materials, can solve problems such as polluting the environment, and achieve the effects of good wetting ability, good energy absorption ability, and high cohesive strength

Active Publication Date: 2016-05-18
WUHAN OXIRAN SPECIALTY CHEM CO
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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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  • UV polymerization type body foamed damping material and preparation method thereof
  • UV polymerization type body foamed damping material and preparation method thereof
  • UV polymerization type body foamed damping material and preparation method thereof

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preparation example Construction

[0042] The present invention also provides a preparation method of UV polymerization type bulk foam damping material, which comprises the following steps:

[0043] 1) Add the acrylate copolymer 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) adding the nano hollow inorganic particles pretreated by the silane coupling agent in batches to the resin uniformly dissolved in step 2), and stirring so that the nano hollow inorganic particles are evenly dispersed and coated in the resin obtained in step 2), to obtain UV polymerization type bulk foam damping material composition;

[0046] 4) Apply the UV polymerizable body foam damping material composition obtained in step 3) evenly on the release PET film, and irradiate it under ultraviolet light for 3-6 minutes to obtain t...

Embodiment 1

[0048] A kind of preparation method of UV polymerization type bulk foam damping material, it comprises the following steps:

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

[0050] Acrylate copolymer: 20 parts;

[0051] Active diluent: 75 parts;

[0052] Photoinitiator: 0.5 part;

[0053] Nano hollow inorganic particles: 1 part;

[0054] Described acrylate copolymer is the copolymer of epoxy acrylate and polyurethane acrylate, and its structure is as shown in the following formula:

[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) adding the acrylate copolymer and reactive diluent to the reactor, stirring and swelling continuously at room temperature to form a uniform acrylic matrix resin;

[0058] 3) Add the photoinitiato...

Embodiment 2

[0066] A kind of preparation method of UV polymerization type bulk foam damping material, it comprises the following steps:

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

[0068] Acrylate copolymer: 30 parts;

[0069] Active diluent: 70 parts;

[0070] Photoinitiator: 0.8 part;

[0071] Nano hollow inorganic particles: 5 parts;

[0072] Described linear acrylate copolymer is the copolymer of epoxy acrylate and polyurethane acrylate, and its structure is as shown in the following formula:

[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) adding the acrylate copolymer and reactive diluent to the reactor, stirring and swelling continuously at room temperature to form a uniform acrylic matrix resin;

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

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Abstract

The invention discloses a UV polymerization type body foamed damping material. The UV polymerization type body foamed damping material comprises components in parts by weight as follows: 20-30 parts of an acrylate copolymer, 70-75 parts of a reactive diluent, 0.5-0.8 parts of a photoinitiator and 1-5 parts of hollow inorganic nanoparticles. The high-performance damping material is prepared through UV polymerization, and a solvent-free and pollution-free product is realized thoroughly. The hollow inorganic nanoparticles are taken as an inorganic body foaming agent, the product density can be controlled precisely according to requirements through control of adding amount of the hollow inorganic nanoparticles, and the loss factor of the product can be controlled and increased. The damping material has the advantages of excellent initial adhesion, persistent adhesion, peel strength, interfacial wettability and high loss factor.

Description

technical field [0001] The invention relates to the field of damping materials, in particular to a UV polymerized body 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 vibrational energy, ie the loss fa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J151/00C09J11/04C08F265/06C08F220/18C08F218/08C08F2/48C08F265/04C08F212/08C08F220/06
CPCC08F2/48C08F265/04C08F265/06C08K7/24C08K7/26C08K9/06C08K2201/011C09J11/04C09J151/003C08F212/08C08F220/06C08F220/1808
Inventor 赵辉蒋涛张群朝郝同辉周威姚婧娴叶恭博
Owner WUHAN OXIRAN SPECIALTY CHEM CO
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