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A low-smoke, low-toxicity, halogen-free, flame-retardant EPDM vibration-damping rubber material

A technology of EPDM rubber and EPDM, which is used in the field of vibration reduction and noise reduction to achieve the effects of good resilience, improved flame retardant effect and moderate vulcanization speed

Active Publication Date: 2019-07-05
HUBEI INST OF AEROSPACE CHEMOTECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the current patents and literature, a large amount of metal hydroxide (aluminum hydroxide, magnesium hydroxide, etc.) is added to the formula to achieve the purpose of halogen-free flame retardancy, and the mechanical properties are improved by surface treatment of the metal hydroxide , but rubber materials with low-smoke, low-toxicity, halogen-free flame retardancy and damping and vibration reduction properties have not been reported yet

Method used

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  • A low-smoke, low-toxicity, halogen-free, flame-retardant EPDM vibration-damping rubber material
  • A low-smoke, low-toxicity, halogen-free, flame-retardant EPDM vibration-damping rubber material
  • A low-smoke, low-toxicity, halogen-free, flame-retardant EPDM vibration-damping rubber material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The preparation process of the low-smoke, low-toxicity, halogen-free flame-retardant EPDM vibration-damping rubber material of the present invention:

[0027] (1) Mixing: Masticate EPDM rubber 5 to 8 times, and mix according to the order of active agent, anti-aging agent, flame retardant, carbonation agent, carbon black and plasticizer, vulcanizing agent and accelerator.

[0028] (2) Thin-pass film out: Thin-pass the mixed rubber 8 to 10 times, and film out.

[0029] According to the needs, put the released film into the mold, heat and pressurize it for vulcanization, and then it can be processed into the required elastic through-cabin pipe fittings and other products. The vulcanization condition is 15-20MPa, 165±5℃, and the time is 20min.

[0030] Table 1 is a specific embodiment, and the parts in the embodiments are parts by mass.

[0031] Table 1

[0032]

[0033] Table 2 is the main performance index of specific embodiment 1.

[0034] Table 2

[0035]

Embodiment 2

[0037] The preparation process of the low-smoke, low-toxicity, halogen-free flame-retardant EPDM vibration-damping rubber material of the present invention:

[0038] (1) Mixing: Masticate EPDM rubber 5 to 8 times, and mix according to the order of active agent, anti-aging agent, flame retardant, carbonation agent, carbon black and plasticizer, vulcanizing agent and accelerator.

[0039] (2) Thin-pass film out: Thin-pass the mixed rubber 8 to 10 times, and film out.

[0040] According to the needs, put the released film into the mold, heat and pressurize it for vulcanization, and then it can be processed into the required elastic through-cabin pipe fittings and other products. The vulcanization condition is 15-20MPa, 165±5℃, and the time is 20min.

[0041] Table 3 is a specific example, and the parts in the examples are parts by mass.

[0042] table 3

[0043]

[0044] Table 4 is the main performance index of specific embodiment 2.

[0045] Table 4

[0046]

Embodiment 3

[0048] The preparation process of the low-smoke, low-toxicity, halogen-free flame-retardant EPDM vibration-damping rubber material of the present invention:

[0049] (1) Mixing: Masticate EPDM rubber 5 to 8 times, and mix according to the order of active agent, anti-aging agent, flame retardant, carbonation agent, carbon black and plasticizer, vulcanizing agent and accelerator.

[0050] (2) Thin-pass film out: Thin-pass the mixed rubber 8 to 10 times, and film out.

[0051] According to the needs, put the released film into the mold, heat and pressurize it for vulcanization, and then it can be processed into the required elastic through-cabin pipe fittings and other products. The vulcanization condition is 15-20MPa, 165±5℃, and the time is 20min.

[0052] Table 5 is a specific embodiment, and the parts in the embodiments are parts by mass.

[0053] table 5

[0054]

[0055] Table 6 is the main performance index of specific embodiment 3.

[0056] Table 6

[0057]

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Abstract

The invention discloses a low-smoke and low-toxicity halogen-free flame retardant ethylene propylene diene methylene (EPDM) vibration isolating rubber material. The low-smoke and low-toxicity halogen-free flame retardant EPDM vibration isolating rubber material is prepared from the following components in parts by mass: 100 parts of EPDM rubber, 120 to 150 parts of inorganic flame retardant, 5 to 20 parts of a charring agent, 1 to 3 parts of an antiager, 5 to 7 parts of an active agent, 40 to 60 parts of fast extruding furnace black (N550), 20 to 35 parts of a plasticizer and 4.5 parts of a vulcanizing agent. The EPDM rubber material disclosed by the invention has the characteristics of long service life, low smoke, low toxicity, excellent flame retardant property, good softening property and good damping performance, and is suitable for vibration and noise reduction of a pipeline system of a submarine.

Description

technical field [0001] The invention relates to a long-life, low-smoke, low-toxicity, halogen-free, flame-retardant EPDM vibration-damping rubber material, which is applicable to vibration and noise reduction of pipeline systems such as ships and submarines. Background technique [0002] Ships and submarines have strict requirements on the environment in the cabin, and all components in them are required to be environmentally friendly and flame-retardant, and because they are not easy to replace, they are required to have a long service life. [0003] The biggest demand of ships and submarines is to improve their concealment, and the most important indicator to measure their concealment is the size of their noise. The through-cabin pipe fittings are one of the main components for the submarine piping system to transmit vibration and structural noise to the hull . At present, the connection between the through-cabin parts and the hull bulkheads on ships and submarines in our...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/16C08L91/06C08K13/02C08K13/06C08K9/10C08K3/22C08K5/09C08K3/02B29C35/02
CPCB29C35/02C08K2201/011C08K2201/014C08L23/16C08L2201/02C08L2201/22C08L91/06C08K13/02C08K2003/2296C08K5/09C08K2003/2227C08K2003/026C08K13/06C08K9/10
Inventor 王凡陈兵勇魏荣梅王炜赵志祥宋丹隋琦
Owner HUBEI INST OF AEROSPACE CHEMOTECHNOLOGY
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