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Double-restraint-layer damping material

A technology of damping material and constrained layer, which is applied in the fields of automobiles and brakes, can solve the problems that the strong damping function of the product cannot be guaranteed, the damping coefficient of the asphalt damping material is not high, and the quality of the product is affected, and the effect of good shock absorption and reduction effect can be achieved.

Inactive Publication Date: 2020-09-08
CHANGZHOU CHIKE PHOTOELECTRICITY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, as the most commonly used damping material - the damping coefficient of asphalt damping material is not high, it cannot guarantee the strong damping function required by the product in the application, which affects the improvement of product quality

Method used

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  • Double-restraint-layer damping material
  • Double-restraint-layer damping material
  • Double-restraint-layer damping material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A double-constrained-layer damping material is made by mixing polyolefin main resin and tackifying resin as raw materials, and the polyolefin main resin contains the following structure: -(CH 2 -C(CH 3 ) 2 -CH 2 -C(CH 3 ) 2 ) n -

[0035] The tackifying resin is α-terpene resin.

[0036] The double constrained layer damping material comprises the following preparation steps:

[0037] Step 1, mixing the polyolefin main resin and the tackifying resin to form a mixed resin, and adding it to the solvent and stirring for 10 minutes to obtain a mixed solution;

[0038] Step 2, adding curing agent, accelerator, antioxidant, crosslinking agent and film-forming agent into the mixed solution, stirring for 30 minutes, and uniformly obtaining glue;

[0039] In step 3, the glue solution is coated on the substrate in the form of a film, heated and dried to make a double-constrained damping film material.

[0040] The proportioning of each material in the described preparatio...

Embodiment 2

[0051] A double constrained layer damping material, which is made by mixing polyolefin main resin and tackifying resin as raw materials, and the polyolefin main resin contains the following structure: -(CH 2 -C(C 2 h 5 ) 2 -CH 2 -C(C 2 h 5 ) 2 ) n -

[0052] The tackifying resin is naphthenic oil.

[0053] The double constrained layer damping material comprises the following preparation steps:

[0054] Step 1, mixing the polyolefin main resin and the tackifying resin to form a mixed resin, and adding it to the solvent and stirring for 30 minutes to obtain a mixed solution;

[0055] Step 2, adding curing agent, accelerator, antioxidant, crosslinking agent and film-forming agent into the mixed solution, stirring for 50 minutes, and uniformly obtaining glue;

[0056] In step 3, the glue solution is coated on the substrate in the form of a film, heated and dried to make a double-constrained damping film material.

[0057] The proportioning of each material in the describe...

Embodiment 3

[0068] A double-constrained-layer damping material is made by mixing polyolefin main resin and tackifying resin as raw materials, and the polyolefin main resin contains the following structure: -(CH 2 -C(CH 3 )(C 2 h 5 )-CH 2 -C C(CH 3 )(C 2 h 5 )) n -

[0069] The tackifying resin is dicyclopentadiene (DCPD) resin.

[0070] The double constrained layer damping material comprises the following preparation steps:

[0071] Step 1, mixing the polyolefin main resin and the tackifying resin to form a mixed resin, and adding it to the solvent and stirring for 20 minutes to obtain a mixed solution;

[0072] Step 2, adding curing agent, accelerator, antioxidant, crosslinking agent and film-forming agent into the mixed solution, stirring for 40 minutes, and uniformly obtaining glue;

[0073] In step 3, the glue solution is coated on the substrate in the form of a film, heated and dried to make a double-constrained damping film material.

[0074] The proportioning of each mat...

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Abstract

The invention belongs to the field of automobiles, and relates to the field of brakes, in particular to a double-restraint-layer damping material. Polyolefin matrix resin and tackifying resin are usedas raw materials and are mixed into the double-restraint-layer damping material, and the polyolefin matrix resin contains the following structure: -(CH2-CR1R2-CH2-CR1R2)<n->, wherein R1 and R2 are respectively one of -CH3, -C2H5 and -C3H7. According to the damping material, a crotch-shaped structure of polyolefin is utilized, so that the damping material has a good damping and reducing effect andis not influenced by the stress direction.

Description

technical field [0001] The invention belongs to the field of automobiles, relates to the field of brakes, in particular to a double constrained layer. Background technique [0002] With the continuous development and progress of modern society, vibration and noise have become serious problems in various fields; especially, for automobiles, the strong vibration generated by impact will seriously endanger the lives of drivers and passengers. In order to reduce shock and noise, the most widely used and most effective method is to use various shock-absorbing materials, especially rubber shock-absorbing materials, which can effectively isolate vibration and excitation sources, and can also ease the vibration of the vibrating body, so It is widely used in various motor vehicles, aircraft and ships. [0003] At present, it is one of the main research directions to bond the damping material to the surface of the vehicle body to achieve the purpose of shock absorption by dissipating...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J4/06C09J4/02C09J11/06C09J7/30C09J7/10
CPCC09J4/06C09J11/06C09J7/30C09J7/10C09J2467/005C09J2423/00C09J2433/00
Inventor 蔡秀娟王学刚
Owner CHANGZHOU CHIKE PHOTOELECTRICITY TECH CO LTD