High-damping blended rubber with effective damping temperature range greater than 65 DEG C and preparation method thereof

A technology of blended rubber and high damping, which is applied in the field of preparation of high damping blended rubber, can solve the problems of complex steps, difficult operation and increased cost of the in-situ blending method, and achieve large-scale industrial production and reduce Effects of environmental pollution and improvement of damping performance

Inactive Publication Date: 2018-12-11
QINGDAO UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the steps of the in-situ blending method are complicated, the operation is difficult, and the use of a large amount of solvents leads to increased costs and environmental pollution. Therefore, how to adopt a simple and effective method to improve the blending of ionomers and EVM after polar modification of HVBR Preparation of blend materials with good compatibility and excellent damping performance is the research focus of the present invention

Method used

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  • High-damping blended rubber with effective damping temperature range greater than 65 DEG C and preparation method thereof
  • High-damping blended rubber with effective damping temperature range greater than 65 DEG C and preparation method thereof
  • High-damping blended rubber with effective damping temperature range greater than 65 DEG C and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The ionomer MFHVBR-Mt was prepared by reacting 100 g of MFHVBR with a maleic anhydride content of 3.25% and 5 g of sodium hydroxide. Using an internal mixer, the initial temperature is set to 100°C, the rotor speed is 50r / min, 80gMFHVBR-Mt and 20gEVM are added to it and masticated for 2min, and small materials (zinc oxide, stearic acid, magnesium oxide, anti-aging agent, Accelerator), carbon black and operating oil, degreasing, then add accelerator and accelerator on the open mill, thin pass 6 times to get the MFHVBR-Mt / EVM compound rubber, and then vulcanize the sample preparation.

Embodiment 2

[0042] Example 2: 100 g of MFHVBR with a maleic anhydride content of 3.25% was reacted with 3 g of sodium hydroxide to prepare ionomer MFHVBR-Mt. According to the operating steps of Example 1, 70g MFHVBR-Mt and 30g EVM were blended to prepare MFHVBR-Mt / EVM compound rubber.

Embodiment 3

[0048] Example 3: 100 g of MFHVBR with a maleic anhydride content of 3.25% was reacted with 6 g of sodium hydroxide to prepare ionomer MFHVBR-Mt. According to the operating steps of Example 1, 80g MFHVBR-Mt and 20g EVM were blended to prepare MFHVBR-Mt / EVM compound rubber.

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Abstract

The invention relates to high-damping blended rubber with an effective damping temperature range greater than 65 DEG C and a preparation method thereof. The high-damping blended rubber with a high temperature range is prepared from the following components in parts by weight: 50 to 100 parts of a multifunctional high-vinyl polybutadiene rubber ionomer and 0 to 50 parts of ethylene-vinyl acetate rubber. The preparation method comprises the following steps: firstly, taking multifunctional high-vinyl polybutadiene rubber, metal alkali and hydroxide to react to generate the ionomer; then putting the multifunctional high-vinyl polybutadiene rubber ionomer and the ethylene-vinyl acetate rubber into an open mill or an internal mixer; carrying out simple mechanical blending for 5 to 30min to prepare the high-damping blended rubber with the effective damping temperature range greater than 65 DEG C. The high-damping blended rubber provided by the invention has the beneficial effects that the effective damping temperature range can be effectively widened and the damping performance is obviously improved; meanwhile, the preparation method of the blended rubber is simple, and steps and cost ofpolymer separation, solvent recycling and the like are reduced; environment pollution is reduced and large-scale industrialized production can be realized.

Description

technical field [0001] The invention relates to a preparation method of a high-damping blended rubber with an effective damping temperature range greater than 65°C, and belongs to the field of rubber material preparation and processing modification. Background technique [0002] With the rapid development of modern industry and transportation, mechanical equipment tends to be high-speed and automatic, and the vibration and noise problems caused by it are becoming more and more prominent. As a kind of vibration and noise reduction material, damping material has become a new type of functional material that can convert vibration energy and sound energy into heat energy and dissipate it. research hotspot. [0003] Polymer damping materials, especially rubber materials, can rely on the internal friction of macromolecular segments to generate internal friction near the glass transition temperature (Tg), which can not only effectively reduce mechanical noise and vibration, improv...

Claims

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Application Information

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IPC IPC(8): C08L15/00C08L23/08C08K13/02C08K3/22C08K5/09C08K3/04
CPCC08L15/00C08K2003/222C08K2003/2296C08L23/0853C08K13/02C08K3/22C08K5/09C08K3/04
Inventor 华静牛志彬刘凯刘金慧赵相帅
Owner QINGDAO UNIV OF SCI & TECH
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