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

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

Active Publication Date: 2014-02-19
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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Patent Type & Authority Patents(China)
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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