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Composite rubber sound insulation material and preparation method thereof

A sound insulation material and composite rubber technology, which is applied in the field of rubber composite material preparation, can solve problems such as inability to meet complex and changeable work requirements, poor physical and mechanical properties, and poor overall performance, and achieve sound insulation performance and physical and mechanical properties. Enhanced sound insulation performance and physical and mechanical properties

Inactive Publication Date: 2020-09-18
QINGDAO UNIV OF SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] An object of the present invention is to provide a composite rubber sound-insulating material and its preparation method, which can solve the problem of poor overall performance, poor sound insulation performance, poor physical and mechanical properties of existing composite rubber materials, and the effective damping temperature range of its constituent materials. Only 20°C ~ 40°C, and concentrated below room temperature, can not meet the technical problems of complex and changeable actual work requirements

Method used

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  • Composite rubber sound insulation material and preparation method thereof
  • Composite rubber sound insulation material and preparation method thereof
  • Composite rubber sound insulation material and preparation method thereof

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preparation example Construction

[0038] Such as figure 1 As shown, in order to achieve the above object, the present invention also provides a method for preparing the above-mentioned composite rubber sound insulation material, which comprises the steps of:

[0039] S1, prepare masterbatch step, according to the formula of the composite rubber sound insulation material described in claim 1, described nitrile rubber, described chloroprene rubber, described antioxidant, described reinforcing filler, described dispersing agent , the mica powder, the hollow glass microspheres and the montmorillonite are mixed on an internal mixer for 4-5min to form a masterbatch, and the refined masterbatch is cooled to room temperature;

[0040] S2, the thin pass treatment step, adding the vulcanizing agent, the active agent and the accelerator on the open mill, and adopt the thin pass method for 5-10 times; and

[0041] S3, the vulcanization treatment step, the Botong masterbatch is removed from the mill and parked for 10-30 h...

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Abstract

The invention relates to a composite rubber sound insulation material and a preparation method thereof. The composite rubber sound insulation material is prepared from, by weight, 70-80 parts of nitrile rubber, 20-30 parts of chloroprene rubber, 1.6-2.5 parts of an anti-aging agent, 1-1.5 parts of a vulcanizing agent, 6.5-8 parts of an activator, 4-5.2 parts of an accelerant, 80-88 parts of a reinforcing filler, 10-12 parts of a dispersing agent, 10 parts of mica powder, 12 parts of hollow glass beads and 5 parts of montmorillonite. The sound insulation performance can be remarkably improved,and the physical and mechanical properties are also enhanced, so that the sound insulation performance and the physical and mechanical properties are also greatly improved while good comprehensive properties are maintained.

Description

technical field [0001] The invention belongs to the technical field of rubber composite material preparation, and in particular relates to a composite rubber sound insulation material and a preparation method thereof. Background technique [0002] Composite rubber materials with excellent comprehensive properties have outstanding advantages in sound insulation and vibration reduction. Rubber composite materials not only have the advantages of light weight, easy molding and processing, and excellent physical and mechanical properties, but also have the characteristics of viscoelasticity and internal damping, which is beneficial to The damping and sound insulation mechanisms are introduced into the material at the same time to improve the sound insulation and vibration reduction performance of the material. [0003] However, the effective damping temperature range of a single rubber material is only 20°C to 40°C, and it is concentrated below room temperature, which cannot meet...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/02C08L11/00C08K13/04C08K3/34C08K7/28
CPCC08L9/02C08L11/00C08K13/04C08K3/34C08K3/346C08K7/28
Inventor 曾宪奎赵羽劲姜晓妍朱维浩陈明同姚荣荣
Owner QINGDAO UNIV OF SCI & TECH