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A rubber damping material for ship pipeline covering and a preparing method

A technology for damping materials and pipes, which is applied in the field of rubber damping materials and preparations for covering ship pipes, which can solve problems such as pipeline noise amplification, reduce pipeline transmission vibration and noise, increase internal friction, and improve good physical and mechanical properties Effect

Inactive Publication Date: 2019-04-02
TIANJIN RUBBER IND RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the rubber materials used for pipe covering are mostly elastic rubber materials, which can play a good role in vibration isolation when avoiding the natural frequency of the pipeline, but when the excitation frequency is close to the natural frequency of the pipeline, it is easy to The problem of pipeline noise amplification caused by resonance

Method used

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  • A rubber damping material for ship pipeline covering and a preparing method
  • A rubber damping material for ship pipeline covering and a preparing method
  • A rubber damping material for ship pipeline covering and a preparing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] Embodiment 1: a kind of preparation method of rubber damping material for ship pipeline cladding, it comprises the steps:

[0056] (1) Dosing of each component according to the following weight ratio, taking the total weight parts of the main rubber material as 100:

[0057]

[0058]

[0059] (2) Prepare according to the following steps:

[0060] i, Preparation of nitrile PVC plastic glue

[0061](a) Carry out the batching of each component according to the following parts by weight ratio:

[0062]

[0063] (b) Stir polyvinyl chloride PVC, zinc stearate, barium stearate and half of dioctyl phthalate DOP in a high-speed kneader at low speed for 3 minutes, then add the other half of dioctyl phthalate Ester DOP is stirred for 5 minutes, and when the temperature of the material rises to 70-80 ° C, it is discharged into the material barrel, and it is parked for more than 3 hours before being used as a counterweight. The fully pre-plasticized PVC powder is loose an...

Embodiment 2

[0072] Embodiment 2: a kind of preparation method of rubber damping material for ship pipeline cladding, it comprises the following steps:

[0073] (1) Carry out the batching of each component according to the following parts by weight, with the total parts by weight of the main rubber material as

[0074] 100 counts:

[0075]

[0076] (2) Prepare according to the following steps:

[0077] i, Preparation of nitrile PVC plastic glue

[0078] (a) Carry out the batching of each component according to the following parts by weight ratio:

[0079]

[0080] (b) Stir polyvinyl chloride PVC, zinc stearate, barium stearate and half of dioctyl phthalate DOP in a high-speed kneader at low speed for 3 minutes, then add the other half of dioctyl phthalate Ester DOP is stirred for 5 minutes, and when the temperature of the material rises to 70-80 ° C, it is discharged into the material barrel, and it is parked for more than 3 hours before being used as a counterweight; the fully pr...

Embodiment 3

[0089] Embodiment 3: a kind of preparation method of rubber damping material for ship pipeline cladding, it comprises the following steps:

[0090] (1) Carry out batching of each component according to the following parts by weight ratio, taking the total parts by weight of the main rubber material as 100:

[0091]

[0092] (2) Prepare according to the following steps:

[0093] i, Preparation of nitrile PVC plastic glue

[0094] (a) Carry out the batching of each component according to the following parts by weight ratio:

[0095]

[0096] (b) Stir polyvinyl chloride PVC, zinc stearate, barium stearate and half of dioctyl phthalate DOP in a high-speed kneader at low speed for 3 minutes, then add the other half of dioctyl phthalate Ester (DOP) is stirred for 5 minutes, and when the temperature of the material rises to 70-80 ° C, it is discharged into the material barrel, and it is parked for more than 3 hours before being used as a counterweight; the fully pre-plasticiz...

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Abstract

A rubber damping material for ship pipeline covering and a preparing method are disclosed. The method includes stirring polyvinyl chloride PVC, zinc stearate, barium stearate and dioctyl phthalate DOPat a low speed in a high-speed kneading machine to obtain a pre-plasticized PVC powder material; mixing the pre-plasticized PVC powder material with plasticized nitrile butadiene rubber to prepare alloy rubber; then mixing the alloy rubber with nitrile butadiene rubber, chlorobutyl rubber, ethylene-vinyl acetate rubber (EVM), stearic acid, an antioxidant, zinc oxide, an inorganic filler, a flameretardant, carbon black and a softening agent; adding sulfur and an accelerant; sheeting after smashing and mill running; performing sheeting after hot milling and refining; and performing vulcanization at a high temperature under high pressure to obtain a finished product. The rubber damping material and the method are advantageous in that through blending of various main body materials and through addition of a high number of flaked functional fillers, the Young modulus and internal friction of the rubber material are increased, the glass transition temperature range is further broadened sothat the rubber damping material has good damping performance in a large temperature range, can reduce transfer of vibration and noise by pipelines and can achieve good vibration separation and vibration inhibition effects in a wide frequency band.

Description

technical field [0001] The invention belongs to a damping material and a preparation method, in particular to a rubber damping material for covering ship pipelines and a preparation method. Background technique [0002] There are very complex pipeline arrangements inside and outside the ship cabin to transfer energy flow, momentum flow or mass flow to complete specific functions. At the same time, the pipeline also provides a possible way for the ship with vibration and noise. On the one hand, most mechanical equipment is not only connected to the ship structure through the base, but also connected to the ship through various oil and water pipelines. The mechanical equipment can pass through The pipeline transmits vibration and noise to the hull structure; on the other hand, since the pump system itself is intermittent, there are inevitably liquid pressure flow fluctuations in the pipeline system and the resulting vibration and noise of the pipe wall structure , these struc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/02C08L27/06C08L23/28C08L23/08C08K3/22C08K5/09C08K3/04C08K5/12C08K5/098C08K13/02B29B7/00B29C43/02B29C35/02B29C48/00
CPCB29B7/005B29C35/02B29C43/003C08K2003/2296C08K2201/014C08L9/02C08L2203/18C08L2205/03C08L2205/035C08L27/06C08L23/283C08L23/0853C08K3/22C08K5/09C08K3/04C08K5/12C08K5/098C08K13/02
Inventor 褚风民姜军
Owner TIANJIN RUBBER IND RES INST