Nitrile rubber microcellular foaming material and its preparation method

A technology of microcellular foaming material and nitrile rubber, which is applied in the field of polymer materials and can solve the problems of formamide residue and limitation of foaming agent

Active Publication Date: 2017-09-26
JIANGSU DAMAONIU NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the foaming materials currently on the market are all foamed with chemical foaming agents, and the foaming agent has formamide residues,

Method used

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  • Nitrile rubber microcellular foaming material and its preparation method
  • Nitrile rubber microcellular foaming material and its preparation method
  • Nitrile rubber microcellular foaming material and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] 100 parts of NBR, 10 parts of filler, 1 part of anti-aging agent 4010, 2 parts of vulcanizing agent, 2.5 parts of vulcanization accelerator, and 3 parts of active agent.

[0037] Wherein, the filler is carbon black; the vulcanizing agent is sulfur, the vulcanization accelerator is TMTD, CZ; the active agent is stearic acid and zinc oxide used together.

[0038] First, the NBR rubber is masticated on the open mill, and then fillers, softeners, vulcanization accelerators are added, and the vulcanization agent is added last. After three thin passes, the sheet is produced to obtain a mixed rubber. After the rubber is placed for one day, it is re-milled. Put the mixed rubber into the required mold, the pressure of the vulcanizer is 10MPa, the temperature is 140°C, and the pre-vulcanization time is 10min. After that, put the pre-vulcanized material into the autoclave, and then seal it. The temperature of the reactor is 60°C, and the N 2 Inject into the autoclave, make the ...

Embodiment 2

[0041] 100 parts of HNBR, 1 part of anti-aging agent 4010, 2.5 parts of vulcanizing agent, 1.5 parts of vulcanization accelerator, and 6 parts of active agent.

[0042] Wherein, the vulcanizing agent is sulfur, the vulcanization accelerator is TMTD; the active agent is stearic acid and zinc oxide used in combination.

[0043] First, the NBR rubber is masticated on the open mill, and then fillers, softeners, vulcanization accelerators are added, and the vulcanization agent is added last. After three thin passes, the sheet is produced to obtain a mixed rubber. After the rubber is placed for one day, it is re-milled. Put the mixed rubber into the required mold, the pressure of the vulcanizer is 10MPa, the temperature is 140°C, and the pre-vulcanization time is 12min. After that, put the pre-vulcanized material into the autoclave, and then seal it. The temperature of the reactor is 60°C, and the N 2 Inject into the autoclave, make the pressure reach 18MPa, and saturate at const...

Embodiment 3

[0046] 100 parts of XNBR, 15 parts of filler, 3 parts of plasticizer, 1.5 parts of antioxidant 4010, 1 part of vulcanizing agent, 1.5 parts of vulcanization accelerator, and 3 parts of active agent.

[0047] Wherein, the filler is carbon black; the plasticizer is aromatic hydrocarbon oil; the vulcanizing agent is dicumyl peroxide; the vulcanization accelerator is TAIC; the active agent is stearic acid and zinc oxide used together.

[0048] First, the NBR rubber is masticated on the open mill, and then fillers, softeners, vulcanization accelerators are added, and the vulcanization agent is added last. After three thin passes, the sheet is produced to obtain a mixed rubber. After the rubber is placed for one day, it is re-milled. Put the mixed rubber into the required mold, the pressure of the vulcanizer is 10MPa, the temperature is 150°C, and the pre-vulcanization time is 8min. After that, put the pre-vulcanized material into the autoclave, and then seal it. The temperature o...

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Abstract

The invention discloses a nitrile rubber microcellular foaming material and its preparation method. The nitrile rubber microcellular foaming material is prepared from, 100 parts of nitrile rubber co-mixture, 0-4 parts of stabilizing agent, 0-200 parts of filler, 0-50 parts of plasticizer, 0.6-5 parts of vulcanizing agent, 0.5-6 parts of vulkacit, 0-8 parts of active agent, and 2-5 parts of anti-aging agent. A preparation method of provided for the formula. The nitrile rubber microcellular foaming material is good in mechanical property, stable in quality, and toxic-free and environmental-friendly; the nitrile rubber microcellular foaming material can be applied to high-grade product and used as automobile engine damping material, sealing material, foaming ground mat, sound absorption and noise reduction products, and other domains.

Description

technical field [0001] The invention belongs to the field of polymer materials, and in particular relates to a nitrile rubber microporous foam material and a preparation method thereof. Background technique [0002] Polymer foam material is a special material composed of polymer and gas cells. Compared with ordinary polymer materials, it has the following characteristics: (1) Low density: due to the existence of a large number of pores in the foam material, therefore, Its density is only a fraction or even a tenth of that of similar non-foamed products. (2) High specific strength: Since the density of foamed materials is only a fraction or even lower than that of non-foamed products, it has high specific strength. (3) Sound insulation effect is good: the tortuous and connected pores in the foam material change the straight-line propagation of sound and cause energy loss due to viscous flow. Many surfaces inside the porous body can be relatively displaced for a short distan...

Claims

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Application Information

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IPC IPC(8): C08L9/02C08L15/00C08L13/00C08L27/06C08K13/02C08K3/04C08K3/06C08K5/09C08K3/22C08K3/34C08K5/14C08J9/12
CPCC08J9/122C08J2203/06C08K3/04C08K3/06C08K3/22C08K5/09C08K13/02C08K2003/2296C08L9/02C08L13/00C08L2203/14C08L15/005C08L91/00C08K5/14C08L27/06C08K3/346C08K5/12
Inventor 张振秀马乐园张昕
Owner JIANGSU DAMAONIU NEW MATERIAL TECH CO LTD
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