Nanometer rare earth inorganic substance/ rubber composite with high wear resistant and excellent dynamic property

A dynamic performance and nano-rare earth technology, which is applied in the field of nano-rare earth inorganic matter/rubber composite materials, can solve the problems of increased dynamic heat generation, poor fatigue resistance, poor compatibility between rare earth inorganic matter and rubber matrix, etc.

Active Publication Date: 2012-06-27
江苏绿源橡胶资源循环利用创新中心有限公司
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  • Claims
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Problems solved by technology

[0007] Chinese patent CN100593549C discloses a method of modifying rubber with rare earth additives to improve the wear resistance of rubber. However, due to the poor compatibility of rare earth inorganic substances with the rubber matrix, voids are prone to appear at the interface between it and the polymer matrix. These Voids are defects inside the rubber compound, so the d

Method used

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  • Nanometer rare earth inorganic substance/ rubber composite with high wear resistant and excellent dynamic property
  • Nanometer rare earth inorganic substance/ rubber composite with high wear resistant and excellent dynamic property
  • Nanometer rare earth inorganic substance/ rubber composite with high wear resistant and excellent dynamic property

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] At room temperature, wrap 100 parts of natural rubber on double rollers on the rubber mixer, then add 5 parts of zinc oxide and 2 parts of stearic acid in sequence, and mix for 0.5 minutes; then add 0.5 parts of anti-aging agent RD, and add anti-aging agent 4010NA to 0.5 part, mixed for 2 minutes; then add 10 parts of VN3 white carbon black and 0.5 parts of Si69 in batches, then mix for 5 minutes, then add 0.5 parts of nano-lanthanum oxide, mix for 0.5 minutes, and finally add accelerator CZ1 in the open mill .5 parts and 3 parts of sulfur, thin pass 5 times to release the sheet, then park for 4 hours, then re-mill for 5 minutes and vulcanize to form a composite material.

[0025] Described accelerator CZ is N-cyclohexyl-2-benzothiazole sulfenamide; Si69 is two (triethoxysilylpropyl) tetrasulfides; Antiaging agent RD is 2,2,4-trimethyl- 1,2-dihydroquinoline polymer (belongs to ketone-amine reaction product antiaging agent); antiaging agent 4010NA is N-isopropyl-N`-pheny...

Embodiment 2

[0027] At room temperature, wrap 100 parts of natural rubber on double rollers on the rubber mixer, then add 5 parts of zinc oxide and 2 parts of stearic acid in sequence, and mix for 0.5 minutes; then add 4 parts of anti-aging agent RD, add anti-aging agent 4010NA to 5 1 part and 1 part of protective wax, mix for 5 minutes; then add 50 parts of VN3 silica and 10 parts of rector earth and 4 parts of Si69 in batches, then add 10 parts of carbon nanotubes, then mix for 10 minutes, then add 10 parts of nano-cerium oxide, mixed for 5 minutes, finally added 1.5 parts of accelerator CZ, 0.2 parts of accelerator TT and 3 parts of sulfur in the open mill, and thinly passed 5 times to produce tablets, then parked for 4 hours, and then returned Refined for 5 minutes and vulcanized to obtain a composite material.

[0028] The accelerator TT is tetramethylthiuram disulfide; the protective wax is a kind of anti-aging agent, which plays the role of anti-ozone aging and prolonging the servic...

Embodiment 3

[0030]At room temperature, wrap 100 parts of natural rubber on double rollers on the rubber mixer, then add 4 parts of zinc oxide and 1 part of stearic acid in sequence, and mix for 0.5 minutes; then add 4 parts of antioxidant MB, and add antioxidant 445 to make 5 5 parts and 4 parts of protective wax, mixed for 5 minutes; then add 50 parts of N234 carbon black and 4 parts of Si75 in batches, then mix for 10 minutes, then add 5 parts of nano-cerium oxide, 5 parts of nano-neodymium oxide, and nano-gadolinium carbonate 10 parts, 10 parts of nano-lanthanum hydroxide and 20 parts of nano-samarium nitrate, knead for 10 minutes, and finally add 1.5 parts of accelerator DM, 3 parts of accelerator DTDM and 2 parts of sulfur in the open mill, thin pass 5 times The sheet is released, then parked for 4 hours, then re-milled for 5 minutes and vulcanized to obtain a composite material.

[0031] The accelerator DM is 2,2'-dithiodibenzothiazole; the accelerator DTDM is 4,4'-dithiodimorpholin...

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Abstract

The invention prepares a nanometer rare earth inorganic substance/ rubber composite with high wear resistant and excellent dynamic property. The invention adopts a mechanical blending method to prepare the nanometer rare earth inorganic substance and rubber composite. After the nanometer rare earth inorganic substance and the rubber are composited, higher modulus can be provided, the mechanical property of the rubber composite is improved, the abrasion stripes are blocked up to achieve the aim of dispersing stress through the high strength of the nanometer rare earth inorganic substance so as to improve wear-resisting property, and the internal friction of the composite is improved by utilizing the specific characteristic of smooth surface of the rare earth material so as to achieve the aim of reducing internal friction and resistance to rolling. According to the material prepared by the invention, the modulus can be improved, the mechanical property is improved, the abrasion is greatly reduced simultaneously, the internal friction and the resistance to rolling are reduced, and the composite can be widely applied to materials such as tyres, conveyer belts, sealing elements, piston rings, soles and the like.

Description

Technical field: [0001] The invention relates to a nano rare earth inorganic substance / rubber composite material with excellent wear resistance and dynamic performance. Background technique: [0002] The invention is to prepare nano-rare earth inorganic matter / rubber composite material with high wear resistance and excellent dynamic performance, which is used in tires, conveyor belts, seals, piston rings and shoe soles, etc., which will inevitably produce friction and wear during use. [0003] Abrasion of rubber is considered a destructive phenomenon, but unlike the case of tensile tests and tear tests, it is the destruction of minute areas caused by repeated application of frictional force to the surface of rubber materials. Abrasion refers to the process in which a product or sample changes its weight or size due to abrasion under laboratory or service conditions. Abrasion performance is a very important indicator of rubber products, which characterizes the ability of vul...

Claims

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Application Information

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IPC IPC(8): C08L7/00C08L23/16C08L33/04C08L9/02C08L15/00C08L9/06C08L23/22C08L9/00C08K13/02C08K3/22C08K3/26C08K3/28C08K3/30C08K3/16
Inventor 刘力张法忠温世鹏
Owner 江苏绿源橡胶资源循环利用创新中心有限公司
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