Sub-high temperature vulcanized solid sound-transmitting rubber and preparation method thereof

A sound-transmitting rubber and sub-high temperature technology, which is applied in the field of rubber and its preparation, can solve the problems of low production efficiency, difficult operation, water resistance and sealing, etc., and achieve the effects of lowering the critical temperature, increasing the vulcanization speed, and prolonging the scorch time

Active Publication Date: 2012-06-20
TIANJIN RUBBER IND RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. The water seal of the equipment that is not resistant to high temperature cannot use high-temperature vulcanized solid sound-permeable rubber
[0005] 2. The water sealing of large equipment, the mold production cost required for high temperature vulcanization is high, the operation is difficult, and the production efficiency is low
[0006] 3. Due to limited conditions, on-site maintenance and repair cannot be done when high-temperature vulcanized solid sound-permeable rubber is used as a water seal

Method used

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  • Sub-high temperature vulcanized solid sound-transmitting rubber and preparation method thereof
  • Sub-high temperature vulcanized solid sound-transmitting rubber and preparation method thereof
  • Sub-high temperature vulcanized solid sound-transmitting rubber and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Embodiment 1: A sub-high temperature vulcanized solid sound-permeable rubber, characterized in that: the parts by weight of each raw material are composed of:

[0028]

[0029] Plasticize the above chloroprene rubber components with an open mill, and control the roller temperature within 55-65°C; until the Mooney viscosity ML(1+4)100 is 30-40;

[0030] Mix the above plasticized rubber with an open mill: control the temperature of the rollers within 55-65°C, and control the temperature of the glue within 70-80°C; add the magnesium oxide and accelerator TMTD components in the ingredients in sequence, and then add Stearic acid, carbon black, talcum powder, anti-aging agent A component, and finally add zinc oxide and accelerator A; after thin pass, the next sheet is made into an unvulcanized solid sound-permeable rubber sheet; the vulcanization curve is made by sampling, and the vulcanization condition is 100℃×120min, T10 is 10-20 minutes, T90 is 45-55 minutes;

[0031]...

Embodiment 2

[0036] Embodiment 2: A sub-high temperature vulcanized solid sound-permeable rubber, characterized in that: the parts by weight of each raw material are composed of:

[0037]

[0038] Preparation:

[0039] According to the preparation method of Example 1, a solid sound-permeable rubber is made, and after testing, its performance is:

[0040] Tensile strength (MPa)

[0041] The solid sound-permeable rubber is suitable for cladding sound-permeable materials for ships and other water-tight sound-permeable materials bonded with metal.

Embodiment 3

[0042] Embodiment 3: A sub-high temperature vulcanized solid sound-permeable rubber, characterized in that: the parts by weight of each raw material are composed of:

[0043]

[0044] According to the preparation method of Example 1, a solid sound-permeable rubber is made, and after testing, its performance is:

[0045] Tensile strength (MPa)

[0046] The solid sound-permeable rubber is suitable for cladding sound-permeable materials for ships and other water-tight sound-permeable materials bonded with metal.

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Abstract

The invention discloses sub-high temperature vulcanized solid sound-transmitting rubber and a preparation method thereof. The method comprises: plasticizing the sound-transmitting rubber in an open mill; blending the rubber; adding magnesium oxide and a tetramethylthiuram disulfide (TMTD) promoter in turn, then adding stearic acid, carbon black, talcpowder and an anti-aging agent A and finally adding zinc oxide and a promoter A; thinning the rubber and loading sheets and obtaining unvulcanized rubber sheets; and vulcanizing the rubber sheets at 90 to 100 DEG C and obtaining the solid sound-transmitting rubber. According to the invention, the promoter A which is thiourea is used to reduce the critical temperature of the vulcanization of the rubber; the TMTD promoter accelerates vulcanization, and the acidic characteristic of the promoter prolongs the scorching time of the rubber to prevent the rubber from scorching in a blending process; the vulcanization at a sub-high temperature of 90 to 100 DEG C is convenient with an infrared lamp as a heat source; and the sound-transmitting rubber is used on equipment susceptible to high temperature and large equipment and can be maintained on site.

Description

technical field [0001] The invention belongs to a rubber and a preparation method thereof, in particular to a sub-high temperature vulcanized solid sound-permeable rubber and a preparation method thereof. Background technique [0002] At present, there are two main types of sound-transmitting elastomers used in water sealing materials in my country; the first type is liquid-casting-type sound-transmitting elastomer represented by polyurethane, referred to as sound-transmitting polyurethane; the second type is natural rubber and synthetic The solid-coated sound-transmitting elastomer represented by rubber, referred to as solid sound-transmitting rubber; these two types of materials are used in different aspects and complement each other, but they cannot replace each other. [0003] Among them, solid sound-permeable rubber is generally processed by high-temperature vulcanization, which requires a heat source provided by a flat vulcanizer or tank vulcanizer. In many fields of a...

Claims

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Application Information

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IPC IPC(8): C08L11/00C08K13/02C08K3/22C08K3/04C08K3/34C08K5/405
Inventor 商宏超张景亮马义明陈宝明钟爱升
Owner TIANJIN RUBBER IND RES INST
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