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Organic clay rubber composite material for laminated rubber supporting seat and preparation process thereof

A technology of laminated rubber bearing and organoclay, applied in the rubber field, can solve the problems affecting the quality and service life of rubber bearing products, affecting the safety and durability of bridge structures, etc., and achieve excellent anti-aging performance and excellent mechanical properties. , the effect of strong interaction

Active Publication Date: 2013-07-17
HENGSHUI ZHONGTIEJIAN ENG RUBBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, through investigations, inspections and bridge disease analysis in recent years, it has been found that there are still many hidden dangers in the product quality of laminated rubber bearings. Due to the fierce competition in the rubber bearing market, the prices of raw materials such as rubber have skyrocketed, while the bidding price has been falling all the way, resulting in In the production process of some rubber bearings, cheap filling materials such as calcium powder are often used to reduce costs, and even recycled rubber is used, which seriously affects the product quality and service life of rubber bearings, and some have seriously affected the safety and durability of bridge structures.

Method used

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  • Organic clay rubber composite material for laminated rubber supporting seat and preparation process thereof
  • Organic clay rubber composite material for laminated rubber supporting seat and preparation process thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] The preparation process of the organoclay rubber composite material for the laminated rubber bearing of the present invention comprises the following steps:

[0037] Step 1 Preparation of organoclay-rubber composites for unvulcanized laminated rubber bearings

[0038] In the first small step, 100 parts by weight of rubber is masticated on a double-roller open mill, and the roller distance is adjusted to 1mm, and 3 triangular bags are made by the wrapping rollers, and then 3 parts by weight of organic clay and 10 parts by weight of carbon black are added. Mechanical intercalation is carried out on the machine, 3 knives each on the left and right, and 5 triangle bags are made;

[0039] The second small step is to put the sizing material in the first small step into the internal mixer, add 10 parts by weight of activating agent and 4 parts by weight of anti-aging agent successively, pressurize the top bolt; wait until the temperature of the rubber material in the internal ...

Embodiment 2

[0044] The preparation process of the organoclay rubber composite material for the laminated rubber bearing of the present invention comprises the following steps:

[0045] Step 1 Preparation of organoclay-rubber composites for unvulcanized laminated rubber bearings

[0046] In the first small step, 100 parts by weight of rubber is masticated on a double-roller open mill, and the roller distance is adjusted to 1mm, and 3 triangle bags are made by the wrapping roller, and then 11.5 parts by weight of organic clay and 17 parts by weight of carbon black are added. Mechanical intercalation is carried out on the machine, 3 knives each on the left and right, and 5 triangle bags are made;

[0047] The second small step is to put the sizing material in the first small step into the internal mixer, add 8 parts by weight of active agent and 3 parts by weight of anti-aging agent successively, pressurize the top bolt; At 110°C, raise the bolt and keep it for 10 seconds, then add 33 parts b...

Embodiment 3

[0052] The preparation process of the organoclay rubber composite material for the laminated rubber bearing of the present invention comprises the following steps:

[0053] Step 1 Preparation of organoclay-rubber composites for unvulcanized laminated rubber bearings

[0054] The first small step is to plasticize 100 parts by weight of rubber on a double-roller open mill, adjust the roller distance to 1mm, wrap the rolls into 3 triangle bags, then add 20 parts by weight of organic clay and 24 parts by weight of carbon black, Mechanical intercalation is carried out on the machine, 3 knives each on the left and right, and 5 triangle bags are made;

[0055] The second small step is to put the rubber in the first small step into the internal mixer, add 6 parts by weight of active agent and 2 parts by weight of anti-aging agent successively, pressurize the top bolt; wait until the temperature of the rubber in the internal mixer rises to At 120°C, raise the bolt and keep it for 12 s...

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Abstract

The invention belongs to the technical field of rubber, and discloses an organic clay rubber composite material for a laminated rubber supporting seat and a preparation process thereof. The organic clay rubber composite material is mainly characterized by adding organic clay, carbon black, a vulcanizing agent, an activating agent, an accelerating agent and an anti-aging agent to rubber.The organic clay rubber composite material for the laminated rubber supporting seat, which is provided by the invention, is prepared by adopting a mechanical blending intercalation method and substitutes reinforced carbon black or wholly substitutes low-cost reinforced materials, such as calcium powder and the like, by adopting an organic clay part; the laminated rubber supporting seat manufactured by using the organic clay rubber composite material can not only fundamentally solves the problems of potential quality safety hazards, namely incapable aging resistance, poor fatigue-resistant property, and the like, but also lowers the production cost, enhances the heat-resistant property, compression-resistant property and fatigue-resistant property of a rubber base body and keeps the higher breaking and tensile strength and breaking elongation of the rubber material.

Description

technical field [0001] The invention belongs to the technical field of rubber, and in particular relates to an organic clay rubber composite material for laminated rubber bearings and a preparation process thereof. Background technique [0002] The laminated rubber bearing is an important bridge accessory. Its main function is to reliably transmit the reaction force of the bridge superstructure to the abutment, and at the same time complete the horizontal displacement and corner deformation required by the beam structure, absorb part of the vibration, reduce the The impact of small live loads on bridge structures and piers has the characteristics of vibration reduction, earthquake resistance and large deformation. Because of its reliable performance, simple structure, convenient installation and use, and low cost, most bridges have used rubber bearings. However, through investigations, inspections and bridge disease analysis in recent years, it has been found that there are...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L7/00C08L9/00C08K13/06C08K9/04C08K7/00C08K3/34C08K3/04C08J3/24B29C35/00
Inventor 赵雅婷宫小能杜志萍郭勇贾雷雷邓乃伏赵燕王海霞李世彪石新英
Owner HENGSHUI ZHONGTIEJIAN ENG RUBBER
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