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Rubber lining composition used at high temperature as well as preparation method and purpose of rubber lining composition

A technology of rubber lining and composition, which is applied in the field of rubber polymer materials and materials, can solve the problems of poor high temperature resistance of natural rubber, etc., and achieve the effects of improving hardness and temperature resistance, reducing protein content, and improving cohesion

Active Publication Date: 2018-05-08
SHANGHAI SHUANGPU ANTICORROSION RUBBER LINING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to solve the problem of poor high temperature resistance of natural rubber in the prior art, and provides an electromagnetic flowmeter rubber lining composition and application that can be used for drinking water at high temperatures

Method used

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  • Rubber lining composition used at high temperature as well as preparation method and purpose of rubber lining composition
  • Rubber lining composition used at high temperature as well as preparation method and purpose of rubber lining composition
  • Rubber lining composition used at high temperature as well as preparation method and purpose of rubber lining composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] (1) Weigh each component according to the following proportions: 40kg of natural rubber, 5kg of styrene-butadiene rubber, 5kg of high-styrene rubber, 2.5kg of nano-zinc oxide, 5kg of nano-carbon black, 7.5kg of filler, 12.5kg of sulfur, and 0.25 kg of accelerator kg, put the above raw materials in an open mill or an internal mixer for rubber mixing, extrude the mixed rubber film, and then extrude the film on the extruder or calender, with a thickness of 3.5mm;

[0042](2) Sandblast the metal surface of the equipment that needs to be lined with rubber. The sandblasting grade is Sa 2.5. After cleaning, brush SP-2 red adhesive within 4 hours, and after 5 hours of air drying, brush SP-2 red for the second time Adhesive, air-dry for 5 hours, and then apply SP-2 red adhesive;

[0043] (3) Cut the rubber sheet according to the size of the equipment. Brush the surface of the rubber sheet with SP-2 red adhesive. After air-drying for 10 hours, spread it on the surface of the equi...

Embodiment 2

[0050] Compared with Example 1, the amount of nano carbon black in the first step becomes 12.5kg, the amount of filler becomes 10kg, the amount of sulfur becomes 17.5kg, the amount of accelerator becomes 0.4kg, and other conditions remain unchanged.

Embodiment 3

[0052] Compared with embodiment 1, in the first step, the natural rubber consumption becomes 31kg, the styrene-butadiene rubber consumption becomes 9kg, the high styrene rubber consumption becomes 10kg, the filler consumption becomes 10kg, and the sulfur consumption becomes 17.5kg, promotes The dosage becomes 0.45kg, and other conditions remain unchanged.

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Abstract

The invention belongs to the technical field of materials, particularly relates to the field of rubber polymer materials and discloses a rubber lining composition used at high temperature as well as apreparation method and a purpose of the rubber lining composition, wherein the rubber lining composition is prepared from the following components in parts by weight: 60-80 parts of natural rubber, 10-20 parts of styrene-butadiene rubber, 10-20 parts of high styrene rubber, 3-8 parts of nanometer zinc oxide, 10-30 parts of nano carbon black, 10-30 parts of a filler and 25-45 parts of sulphur. Forthe rubber lining composition provided by the invention, a mixture of three polymers of the high-quality natural rubber, the non-pollution styrene-butadiene rubber and the high styrene butadiene rubber is selected to replace pure natural rubber of the existing product, so that the hardness and the temperature resistance of the materials at high temperature are improved, and the content of proteinwhich cause peculiar smell in the material is lowered at the same time.

Description

technical field [0001] The invention belongs to the field of material technology, in particular to the field of rubber polymer materials, in particular to an electromagnetic flowmeter rubber lining composition which can be used for drinking water under high temperature, and a preparation method and application thereof. Background technique [0002] Electromagnetic flowmeter is an instrument that uses the principle of electromagnetic induction to measure the flow of conductive fluid. Because it has no pressure loss and is less affected by external factors such as the temperature, density, viscosity and pressure of the measured fluid, it is widely used in field of liquid transport. [0003] At present, there are only a few manufacturers in China producing electromagnetic flowmeter rubber lining compositions. The main materials of existing electromagnetic flowmeter rubber lining compositions are natural rubber, but natural rubber has poor high temperature resistance. However, ...

Claims

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Application Information

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IPC IPC(8): C08L7/00C08L9/06C08K13/02C08K3/22C08K3/04C08K3/06B29C35/02G01F15/00G01F1/58
CPCB29C35/02C08K2003/2296C08K2201/006C08K2201/011C08L7/00C08L2205/025C08L2205/03G01F1/58G01F15/006C08L9/06C08K13/02C08K3/22C08K3/04C08K3/06
Inventor 彭高桥程广来杨正龙刘馨元孙迪朱婧
Owner SHANGHAI SHUANGPU ANTICORROSION RUBBER LINING
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