Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A nitrate talc modified membrane for high temperature membrane gas meter

A high-temperature film and gas meter technology, applied in the field of materials, can solve problems such as shelling, cracking, and delamination, and achieve the effects of increased service life, good mechanical properties, and improved compatibility

Active Publication Date: 2021-06-08
ZENNER METERING TECH (SHANGHAI) LTD
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The updraft is strong, but because the air is dry, it rarely forms clouds to cause rain, only strong wind and dust. The membrane gas meter placed outdoors needs to withstand the high temperature of 60-80 ℃ for a long time, and the gas surface film does not appear in the process Delamination, peeling, cracking, etc., maintain long-term correct metering characteristics, which is powerless for the current ordinary nitrile rubber film
[0004] Therefore, it is necessary to design a nitrate talc modified film for high temperature membrane gas meters to achieve higher strength and high temperature resistance, and to solve the problems of high temperature delamination, shelling, and cracking

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2

[0015] Embodiment 2, adopt powder funnel to add talcum powder in the concentrated nitric acid gradually, form solution, after the solution is vigorously stirred, add the deionized water that mass percent is 30% in the solution, and keep the solution pH value at 3- 5. Under the condition of temperature of 55±2℃, carry out dynamic crystallization for 3 hours, then carry out static crystallization for 24 hours, filter and wash the crystallized product in turn until the pH value of the filtrate is 6-7, and drain to form a filter cake , Vacuum drying, 500 ℃ medium temperature roasting, forming nitrate talc. Talc nitrate is used as a reinforcing agent, accounting for 11% by weight of the reinforced nitrile rubber to form a composite rubber material. After the reinforced nitrile rubber is coated on both sides of the PET polyester fiber skeleton cloth, it is put into the mold, and the linear rubber macromolecules Macromolecules are formed through cross-linking, and finally meet the r...

Embodiment 3

[0016] Example 3, using a powder funnel to add talcum powder gradually to concentrated nitric acid to form a solution, after vigorously stirring the solution, add deionized water with a mass percentage of 30% in the solution, and keep the pH value of the solution at 3- 5. Under the condition of temperature of 55±2℃, carry out dynamic crystallization for 3 hours, then carry out static crystallization for 24 hours, filter and wash the crystallized product in turn until the pH value of the filtrate is 6-7, and drain to form a filter cake , Vacuum drying, 500 ℃ medium temperature roasting, forming nitrate talc. Talc nitrate is used as a reinforcing agent, accounting for 12% by weight of the reinforced nitrile rubber to form a composite rubber material. After the reinforced nitrile rubber is coated on both sides of the PET polyester fiber skeleton cloth, it is put into the mold, and the linear rubber macromolecules Macromolecules are formed through cross-linking, and finally meet ...

Embodiment 4

[0017] Embodiment 4, adopt powder funnel to add talcum powder in the concentrated nitric acid gradually, form solution, after the solution is vigorously stirred, add the deionized water that mass percentage is 30% in the solution, and keep the solution pH value at 3- 5. Under the condition of temperature of 55±2℃, carry out dynamic crystallization for 3 hours, then carry out static crystallization for 24 hours, filter and wash the crystallized product in turn until the pH value of the filtrate is 6-7, and drain to form a filter cake , Vacuum drying, 500 ℃ medium temperature roasting, forming nitrate talc. Talc nitrate is used as a reinforcing agent, accounting for 13% by weight of the reinforced nitrile rubber to form a composite rubber material. After the reinforced nitrile rubber is coated on both sides of the PET polyester fiber skeleton cloth, it is put into the mold, and the linear rubber macromolecules Macromolecules are formed through cross-linking, and finally meet th...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to the technical field of materials, in particular to a nitric acid talc modified film for high-temperature membrane gas meters, including PET polyester fiber skeleton cloth, reinforced nitrile rubber, and double-sided PET polyester fiber skeleton cloth. Reinforced nitrile rubber is respectively coated, and the reinforced nitrile rubber includes nitrate talc and nitrile rubber body, and the weight percentage of nitrate talc in the reinforced nitrile rubber is 10-13%. Compared with the prior art, the present invention is made of PET polyester fiber skeleton cloth double-sided coated with reinforced nitrile rubber, which is characterized by high-temperature vulcanization, and the nitrile rubber reinforced with nitric acid talc can greatly improve its compatibility with polymers. Excellent compatibility, solves the difficulty of easy agglomeration and uneven dispersion in the polymer, so that the present invention has good mechanical properties, excellent thermal stability, and does not appear wrinkle when the service temperature is kept at 60-70 °C for a long time Pleated, delaminated, trachoma, lack of glue, cracking phenomenon, its tensile strength, elongation at break and flex performance are significantly improved.

Description

technical field [0001] The invention relates to the technical field of materials, in particular to a nitric acid talc modified film for a high-temperature membrane gas meter. Background technique [0002] Membrane gas meter is an important tool for industrial and civil gas flow measurement in my country. Its technical level and quality stability are the basic guarantee for the safety of people's lives and property, and are an indispensable link in the entire gas supply industry chain. From the perspective of ecological environment, natural gas, as a clean and high-quality energy source, has achieved unprecedented development in the process of improving my country's energy structure and China Petroleum's vigorous promotion of low-carbon economic development. [0003] However, due to the special climatic characteristics of the earth, only South China has more than 200 days with a daily average temperature ≥ 20°C. It is not cold in winter and hot and rainy in summer; Typical r...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): D06N3/10D06N3/00
CPCD06N3/0036D06N3/0063D06N3/0077D06N3/10D06N2211/28D06N2213/03
Inventor 许军李诗华任海军徐荣华王文军
Owner ZENNER METERING TECH (SHANGHAI) LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com