Vibration damping material composition

A vibration damping and composition technology, applied in the field of vibration damping material composition, can solve the problems of reduced reagent/polymer interaction, narrow usable temperature range, interaction dissipation, etc.

Inactive Publication Date: 2004-04-14
TYTEX AS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It therefore involves issues of reduced reagent / polymer interaction, and a narrow usable temperature range where it exhibits a high loss tangent (tanδ) or loss factor (η), a characteristic required for vibration damping , because the interaction is easily dissipated at high temperature

Method used

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  • Vibration damping material composition
  • Vibration damping material composition
  • Vibration damping material composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1 to 6

[0132] For each of the vibration damping material compositions prepared in Examples 1-6, wherein 100 parts by weight of acrylic rubber was incorporated as an organic polymer matrix material (hereinafter referred to as a polymer matrix) into the phenol-based compounds shown in Table 1, they were used as The vibration damping agent, the blending amount is also given in Table 1. At 200℃ and 200kgf / m 2 Each mixture was hot-pressed for 20 minutes to form a 1 mm thick sheet-like vibration damping material composition.

[0133] The maximum loss tangent (tan δ) and the temperature range in which tan δ remains greater than 1 were measured according to the above method. The results are shown in Table 1.

[0134] Example

1

2

3

4

5

6

polymer matrix

acrylic rubber 注1)

polylactic acid resin 注2)

100

-

100

-

100

-

100

-

100

-

...

Embodiment 11 to 18

[0153] The vibration damping material compositions in Examples 11 to 18 were prepared, wherein acrylic rubber as an organic polymer matrix, a phenol-based compound, and inorganic and organic fillers were mixed, all of which are given in Table 3, and the mixing ratios are also given in Table 3 out. The evaluation results are shown in Table 3.

[0154] Example

11

12

13

14

15

16

17

18

polymer matrix

acrylic rubber 注1)

100

100

100

100

100

100

100

100

Phenolic compounds

PH1 注2)

PH4 注3)

PH10 注4)

PH9 注5)

PH21 注6)

PH8 注7)

80

80

80

80

80

80

48

30

OF1 注8)

OF2 注9)

32

50

...

Embodiment 19

[0166] A vibration damping material composition was prepared using the same starting materials as in Example 11 and under the same conditions, except that the acrylic rubber was replaced by a mixture of acrylic rubber and polycarbonate 80 / 20. The evaluation results are shown in Table 4.

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Abstract

It is an object of the present invention to provide a vibration damping composition having a high loss tangent (tan delta) and loss factor (eta), and serviceable over a wide temperature range. Provided is a vibration damping composition whose matrix material of organic polymer contains a vibration damping agent, and inorganic and/or organic filler, wherein the vibration damping agent is a phenol-based compound of limited steric hindrance which has a chemical composition free of a branched hydrocarbon group of 4 or more carbon atoms at each site adjacent to the hydroxyl group.

Description

technical field [0001] The present invention relates to a vibration damping material composition, and more particularly to a vibration damping material composition which can damp vibration and sound and is used as a raw material in automobiles, construction, various industrial machines and tools, home appliances and medical instruments, etc. , or used in coatings or other forms, especially as sheet shaped articles. Background technique [0002] In today's industrialized society, there is a strong demand for lighter vibration damping and sound insulating materials in consideration of energy saving and reduction of environmental pressure to protect the global environment. [0003] However, the vibration damping and sound insulation functions of conventional polymer-based vibration damping materials rely on the respective viscosity effects and friction effects, which are respectively provided by the contained viscoelasticity and inorganic filler components, by converting the vi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F12/24C08K5/13G10K11/162
CPCC08K5/13G10K11/162C08F12/24
Inventor 三浦正伊藤哲也
Owner TYTEX AS
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