Acid corrosion resistant chloroprene rubber

A chloroprene rubber and acid corrosion resistance technology, applied in the rubber field, can solve the problems of short service life and poor acid corrosion resistance of chloroprene rubber, and achieve the effects of superior high temperature aging resistance, good compatibility and improved resistance.

Inactive Publication Date: 2011-01-12
TIANJIN PENGYI GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is mainly to provide an acid-resistant, heat-resistant and oil-resistant rubbe

Method used

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  • Acid corrosion resistant chloroprene rubber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] In parts by mass

[0013] Neoprene raw rubber 100

[0014] Zinc oxide 3

[0015] Magnesium oxide 3

[0016] Antiaging agent MB 1

[0017] Antiaging agent NBC 0.5

[0018] Paraffin 0.5

[0019] Stearic acid 0.5

[0020] Coumarone 1

[0021] N550 carbon black 20

[0022] Barium sulfate 50

[0023] Kaolin 20

[0024] Plasticizer SUNDEX790 5

[0025] Vulcanizing agent ETU 0.3

[0026] Accelerator DM 1

[0027] Total: 205.8

[0028] performance:

[0029] Hardness Shore A 72

[0030] Tensile Strength Mpa 14.5

[0031] Elongation at break % 353

[0032] The rubber stoppers produced with this formula did not crack until they were etched more than 1500 times.

Embodiment 2

[0034] In parts by mass

[0035] Neoprene raw rubber 100

[0036] Zinc oxide 5

[0037] Magnesium oxide 4

[0038] Antiager MB 1.5

[0039] Antiaging agent NBC 0.8

[0040] Paraffin 0.6

[0041] Stearic acid 0.8

[0042] Coumarone 3

[0043] N550 carbon black 30

[0044] Barium sulfate 40

[0045] Kaolin 30

[0046] Plasticizer SUNDEX790 15

[0047] Vulcanizing agent ETU 0.5

[0048] Accelerator DM 1.5

[0049] Total: 232.7

[0050] performance:

[0051] Hardness Shore A 69

[0052] Tensile Strength Mpa 13.9

[0053] Elongation at break % 348

[0054] The rubber stoppers produced with this formula did not crack until they were etched more than 1500 times.

Embodiment 3

[0056] In parts by mass

[0057] Neoprene raw rubber 100

[0058] Zinc oxide 8

[0059] Magnesium oxide 6

[0060] Antiaging agent MB 1

[0061] Antiaging agent NBC 1

[0062] Paraffin 0.8

[0063] stearic acid 1

[0064] Coumarone 3

[0065] N550 carbon black 40

[0066] Barium sulfate 30

[0067] Kaolin 40

[0068] Plasticizer SUNDEX790 20

[0069] Curing agent ETU 1

[0070] Accelerator DM 2

[0071] Total: 253.8

[0072] performance:

[0073] Hardness Shore A 73

[0074] Tensile Strength Mpa 12.9

[0075] Elongation at break % 334

[0076] The rubber stoppers produced with this formula did not crack until they were etched more than 1500 times.

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Abstract

The invention relates to an acid corrosion resistant chloroprene rubber which is completely made of crude chloroprene rubber so as to greatly enhance the acid corrosion resistance of the sizing material. Barium sulfate and kaolin are added to enhance the acid corrosion resistance of the sizing material. Plasticizer SUNDEX790 is added to replace the traditional ester plasticizer to improve the acid resistance of the sizing material because the plasticizer SUNDEX790 has good compatibility with the chloroprene rubber and can not be easily extracted by acid corrosion. In addition, because the plasticizer SUNDEX790 has a flash point higher than 230 DEG C and superior high-temperature aging performance, so that the thermal aging performance of the chloroprene rubber is enhanced. The rubber stopper produced from the chloroprene rubber can meet the requirements for production and using, and the durability of the rubber stopper is three times better than that of the product made according to the traditional formula, thus prolonging the service life of the product so as to lower the production cost. The chloroprene rubber can also be used for producing rubber tubes, rubber strips, rubber plates, rubber linings and other relevant acid resistant rubber products.

Description

technical field [0001] The invention relates to the technical field of rubber, in particular to an acid-resistant neoprene rubber. Background technique [0002] In the metal products industry, it is often necessary to use an acid etching process to treat the surface of the product to meet the requirements of cleanliness and matte. The traditional acid etching process needs to go through: degreasing - washing - acid etching - washing - washing - light - washing - drying. In order to ensure that the interior of the metal product is not corroded by hydrochloric acid, it is necessary to seal the port with a rubber plug during acid etching. Rubber stoppers are widely used due to their good elasticity and sealing properties. Since the rubber plug is dried with oil, acid, water, and high temperature during the processing process, the rubber plug will crack and age after about 600 cycles of use. At this time, the rubber plug needs to be repaired. replace. The service life of the...

Claims

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Application Information

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IPC IPC(8): C08L11/00C08K13/02C08K3/22C08K3/04C08K3/30C08K3/34C08K5/09
Inventor 张洪起王金财
Owner TIANJIN PENGYI GRP CO LTD
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