Preparation method of pressure-sensitive conductive rubber and plate type bridge support
A conductive rubber and bridge bearing technology, applied in bridges, bridge parts, bridge construction, etc., can solve problems such as the inability to fully feedback the load-bearing status of the bridge bearing, affecting the service life of the bridge bearing, and the complex structure of the intelligent bridge bearing, etc. Achieve the effect of controllable construction standards, clear and concise processing steps, and simple structure
Inactive Publication Date: 2019-03-26
HENGSHUI ZHONGTIEJIAN ENG RUBBER
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Problems solved by technology
The structure of the smart bridge bearing is complex, the manufacturing cost is high, and it is difficult to maintain during use; secondly, the sensor is set at a fixed point, and the force monitoring is uneven, and the load-bearing status of the bridge bearing cannot be fully fed back; thirdly, the sensor lacks protection and fails after long-term use. The rate is high, which affects the service life of the bridge bearing
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[0035] The process of the preparation method of a pressure-sensitive conductive rubber provided by the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0036] see figure 1 , is a process schematic diagram of a preparation method of a pressure-sensitive conductive rubber provided by the present invention. The steps constituting the preparation method of the pressure-sensitive conductive rubber include:
[0037] In step a), the preparation raw materials are weighed according to the weight ratio, including 100 parts by weight of natural rubber, 4 parts by weight of zinc oxide, 2 parts by weight of stearic acid, 6 parts by weight of anti-aging agent, 1.8 parts by weight of microcrystalline wax, 35 parts by weight of conductive particles Parts by weight, 30 parts by weight of reinforcing agent, 15 parts by weight of inorganic nanoparticles, 0.2 parts by weight of adhesion promoter, 2.5 parts by weight of sulfur, and 1.2 p...
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Abstract
The invention belongs to the technical field of bridge supports and in particular relates to a preparation method of pressure-sensitive conductive rubber and a plate type bridge support made of the pressure-sensitive conductive rubber. The main technical scheme is as follows: the preparation method comprises the following steps: firstly, weighing preparation raw materials according to the weight ratio; then plasticizing natural rubber; adding zinc oxide, stearic acid, an anti-ageing agent and microcrystalline wax and mixing; adding conductive grains, a reinforcing agent, inorganic nanoparticles and an adhesion enhancing agent and mixing; and finally, adding sulfur and an accelerating agent, and flaking to prepare mixed finished-product rubber. The pressure-sensitive conductive rubber prepared by the method has the characteristics of sensitive pressurized body resistance and stable and durable structure; and the plate type bridge support made of the pressure-sensitive conductive rubberhas the advantages of accurate monitoring and long service life.
Description
technical field [0001] The invention belongs to the technical field of bridge supports, and in particular relates to a preparation method of a pressure-sensitive conductive rubber and a plate-type bridge support made of the pressure-sensitive conductive rubber. Background technique [0002] The bridge bearing is the key load-bearing component connecting the bridge beam body and the girder pier, and its construction requires high precision, otherwise, once problems such as voiding and compression deviation occur, the safe operation of the bridge will be seriously affected. However, with the change of bridge traffic load and environmental conditions, the force of bridge bearings fluctuates greatly, and the problem of pressure deflection inevitably occurs. Long-term bias may lead to local rubber cracking and failure of the bearing, rubber body extrusion and other diseases. In particular, overloading of heavy-duty vehicles is a thorny problem commonly faced by road traffic in my...
Claims
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IPC IPC(8): C08L7/00C08L91/06C08K13/06C08K9/10C08K7/06C08K3/08C08K3/22C08K5/09C08K3/04C08K3/36C08K5/098E01D19/04
CPCC08K2003/0862C08K2003/2227C08K2003/2296C08K2201/011C08L7/00E01D19/04C08L91/06C08K13/06C08K9/10C08K7/06C08K3/08C08K3/22C08K5/09C08K3/04C08K3/36C08K5/098
Inventor 李鹏贾雷雷赵晓燕孙其战王先前代英姿赵荣李玉飞王思玉田月华
Owner HENGSHUI ZHONGTIEJIAN ENG RUBBER