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Seismic isolation rubber bearing protective rubber composite with good anti-aging performance

A technology of rubber composition and shock-absorbing rubber, which is applied in the field of rubber products, can solve the problems of environmental protection producers' health, etc., and achieve the effect of improving environmental protection performance, service life, high temperature resistance and related physical and mechanical properties

Active Publication Date: 2013-05-08
YUNNAN QUAKESAFE SEISMIC ISOLATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the existing anti-aging rubber generally uses an anti-aging system composed of carcinogenic anti-aging agent D and toxic additive 4010NA, which is not good for environmental protection and the health of producers

Method used

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  • Seismic isolation rubber bearing protective rubber composite with good anti-aging performance
  • Seismic isolation rubber bearing protective rubber composite with good anti-aging performance
  • Seismic isolation rubber bearing protective rubber composite with good anti-aging performance

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Example 1. The rubber composition of the present embodiment is made up of the following components by weight:

[0041] 50 parts of natural rubber,

[0042] 50 parts of EPDM rubber,

[0043] High wear-resistant furnace black N330 35 parts,

[0044] 7 parts of zinc oxide,

[0045] 1.8 parts of stearic acid,

[0046] Insoluble sulfur 1.0 part,

[0047] Accelerator CZ 1.9 parts,

[0048] Anti-aging agent 616 2.0 parts,

[0049] Anti-aging agent phosphite 2.0 parts,

[0050] Softener tricresyl phosphate 8 parts,

[0051] 5 parts of softener paraffin oil No. 100,

[0052] Softener coumarone 4 servings

[0053] 2 parts of coupling agent Si-69,

[0054] Anti-reversion agent wk-901 0.5 parts.

[0055] Weigh each material according to the above formula ratio, first masticate the natural rubber on the open mill, then add EPDM rubber and then masticate, and the roll distance is controlled at 3-5mm. After the raw rubber is wrapped, the triangular bag is made until the s...

Embodiment 2

[0073] Example 2: The rubber composition is composed of the following components in parts by weight:

[0074] 55 parts of natural rubber,

[0075] 45 parts of EPDM rubber,

[0076] 40 parts of high wear-resistant furnace black N330,

[0077] 4.5 parts of zinc oxide,

[0078] 2.0 parts of stearic acid,

[0079] 0.8 parts of insoluble sulfur,

[0080] Accelerator CZ 2.2 parts,

[0081] Anti-aging agent 616 1.0 parts,

[0082] Anti-aging agent phosphite 1.0 parts,

[0083] Softener tricresyl phosphate 5 parts,

[0084] 5 parts of softener paraffin oil No. 100,

[0085] Softener coumarone 2 parts

[0086] 1 part of coupling agent Si-69,

[0087] Anti-reversion agent wk-901 0.2 parts.

[0088] The manufacturing process is the same as that of Example 1.

[0089] The physical properties are tested according to the national standards and industry standards. The anti-aging performance of the rubber in this example can meet the requirements of the design life of the structur...

Embodiment 3

[0090] Example 3. The rubber composition consists of the following components in parts by weight:

[0091] 60 parts of natural rubber,

[0092] 40 parts of EPDM rubber,

[0093] High wear-resistant furnace black N330 45 parts,

[0094] 8 parts of zinc oxide,

[0095] 1.5 parts stearic acid,

[0096] 1.5 parts of insoluble sulfur,

[0097] Accelerator CZ 3.0 parts,

[0098] Anti-aging agent 616 1.2 parts,

[0099] Anti-aging agent phosphite 1.6 parts,

[0100] Softener tricresyl phosphate 9 parts,

[0101] 7 parts of softener paraffin oil No. 100,

[0102] Softener coumarone 5 parts

[0103] 1 part of coupling agent Si-69,

[0104] Anti-reversion agent wk-901 0.5 parts.

[0105] The manufacturing process is the same as that of Example 1.

[0106] The physical properties are tested according to the national standards and industry standards. The anti-aging performance of the rubber in this example can meet the requirements of the design life of the structure, and the...

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Abstract

The invention relates to a seismic isolation rubber bearing protective rubber composite with a good anti-aging performance, relating to the technical field of rubber products. The seismic isolation rubber bearing protective rubber composite comprises the following components according to parts by weight: 40-60 parts of natural rubber, 40-60 parts of ethylene propylene diene monomer, 35-45 parts of high abrasion furnace black N330, 3-8 parts of zinc oxide, 1.5-2.5 parts of stearic acid, 0.8-1.5 parts of insoluble sulfur, 0.5-3.5 parts of accelerant CZ, 1-2 parts of antiager 616, 1-2 parts of antiager phosphite ester, 5-10 parts of softener tricresyl phosphate, 5-7 parts of softener paroline 100, 3-5 parts of softener coumarone, 1-3 parts of coupling reagent Si-69, and 0.2-0.5 parts of anti-reversion agent wk-901. A rubber composite, which has good flame retardance, thermostability and relative physical and mechanical properties as well as environment-friendly and nontoxic addition agent and the anti-aging performance of which can meet the designed service life requirement of a structure, is provided for the seismic isolation rubber bearing protective rubber.

Description

technical field [0001] The invention belongs to the technical field of rubber products, and in particular relates to a rubber composition for a peripheral protective rubber layer of a foundation vibration-isolating rubber bearing for buildings and bridges. Background technique [0002] Earthquakes are a relatively common natural disaster with enormous destructive power. During the earthquake, the surface buildings will be distorted and deformed by the earthquake force, and even collapse when the earthquake is strong, causing huge economic losses and casualties. In recent years, earthquakes have occurred frequently all over the world. Whether it is the "5.12" Wenchuan earthquake, the Qinghai earthquake, or the Yunnan Yiliang earthquake, a large number of casualties and property losses have been caused. A series of earthquakes have made us deeply aware of the importance and urgency of strengthening the earthquake resistance of buildings, bridges and other housing and transpor...

Claims

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Application Information

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IPC IPC(8): C08L7/00C08L23/16C08K13/02C08K3/04C08K3/22C08K5/09C08K3/06C08K5/524C08K5/523
Inventor 李兆彪王贤彬赵娇柴国艳
Owner YUNNAN QUAKESAFE SEISMIC ISOLATION TECH
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