Factors affecting the mixing effect of open mill
The moisture-proof and insulation properties
2021-01-20
Carbon black is divided into
2021-01-20
11 frontier technology research and development projects in rubber industry
Facing the development trend and trends of the rubber industry, the project is published in the direction of industrial application prospects in the industry, focusing on the common problems, mechanism research and the solution of basic problems in the preparation process of new materials in the rubber industry. There are 11 open projects, and the implementation period is no more than 3 years.
Topic 1: Research on simulation method and experimental method of rubber large deformation dynamic constitutive and limit condition
The macro and micro deformation behavior characteristics and mechanical evolution process of cross-linked rubber under external stress were studied. The computer analysis method and constitutive model of non-linear deformation behavior of cross-linked rubber under external stress were established. The mechanism of deformation and failure of rubber was analyzed by computer simulation of micro deformation behavior of rubber such as fracture, fatigue and friction.
Topic 2: Study on rare earth catalyst, polymerization technology and properties of rare earth isoprene gum for synthesis of high CIS polyisoprene
The controllable synthesis technology of high CIS polyisoprene was studied. The effect of rare earth catalyst on the polymerization performance was investigated. The relationship between the structure and performance of polyisoprene was also investigated. It is required to develop rare earth catalytic system with high activity, high selectivity and suitable for production, and the CIS content of high CIS polyisoprene rubber should not be less than 98%.
Topic 3: molecular structure and condensed state structure of vulcanized rubber
The changes of crosslinking bond density, crosslinking bond structure composition and content, filler aggregation structure and rubber filler condensed state structure of crosslinked rubber under different research systems, processing technology, storage methods and time and practical application conditions were analyzed. The effects of molecular structure, filler structure and surface characteristics of crosslinked rubber, and rubber filler interaction on physical properties of vulcanized rubber were analyzed influence.
Topic 4: research and development of oil and low temperature resistant materials
The performance of several sealing materials under different temperature resistance conditions was studied, including solving the problem of low temperature resistance of fluororubber and silicone rubber, high temperature resistance of nitrile rubber, low temperature resistance of chloroprene rubber and low temperature elasticity improvement of acrylate rubber.
Topic 5: Study on Microstructure and interaction mechanism of rubber and filler in wet mixing process
Based on the wet mixing technology, the surface treatment and modification of rubber fillers, the microstructure of rubber, the interaction of rubber fillers and the improvement of dispersion of rubber fillers are studied. It is required that the hysteresis loss of tires produced by this technology should be reduced by at least 60% while the wear resistance remains unchanged.
Topic 6: Research on Key Technologies of intelligent tire
The project requires to solve the implantation methods and processes of active and passive pressure / temperature / RFID devices in tires, and carry out the research on demodulation technology and its evaluation platform under complex tire working conditions. Multi sensor technology integration and tire life cycle monitoring and analysis are realized.
Topic 7: Research on region segmentation method of tire X-ray image
Develop and design the accurate segmentation method of tire region based on gray texture features of X-ray images, including: for various specifications of tire X-ray images, develop 0 ~ 4 belt layer, sub mouth wrapping, reverse wrapping accurate segmentation and edge extraction algorithm.
Project 8: 3D structured light measurement system
Development and design of three-dimensional measurement system based on surface structured light, including: hardware selection and construction, research and development of high-precision (micron resolution) three-dimensional measurement system, which can use manipulator or turntable to measure the size of each part of the workpiece from various angles, and reconstruct the three-dimensional shape of the workpiece through three-dimensional splicing.
Topic 9: Tire X-ray image defect detection in inconsistent environment
According to the X-ray images of different tire factories, using the statistical texture information, a general recognition algorithm is designed to quickly and effectively identify bubbles and impurities, and carry out region segmentation to quantify the shape and area information. Finally, the recognition algorithm achieves the error rate of less than 2%, and the miss rate of less than 1%.
Topic 10: Research on positioning accuracy reliability of manipulator
Based on the faul
Facing the development trend and trends of the rubber industry, the project is published in the direction of industrial application prospects in the industry, focusing on the common problems, mechanism research and the solution of basic problems in the preparation process of new materials in the rubber industry. There are 11 open projects, and the implementation period is no more than 3 years.
Topic 1: Research on simulation method and experimental method of rubber large deformation dynamic constitutive and limit condition
The macro and micro deformation behavior characteristics and mechanical evolution process of cross-linked rubber under external stress were studied. The computer analysis method and constitutive model of non-linear deformation behavior of cross-linked rubber under external stress were established. The mechanism of deformation and failure of rubber was analyzed by computer simulation of micro deformation behavior of rubber such as fracture, fatigue and friction.
Topic 2: Study on rare earth catalyst, polymerization technology and properties of rare earth isoprene gum for synthesis of high CIS polyisoprene
The controllable synthesis technology of high CIS polyisoprene was studied. The effect of rare earth catalyst on the polymerization performance was investigated. The relationship between the structure and performance of polyisoprene was also investigated. It is required to develop rare earth catalytic system with high activity, high selectivity and suitable for production, and the CIS content of high CIS polyisoprene rubber should not be less than 98%.
Topic 3: molecular structure and condensed state structure of vulcanized rubber
The changes of crosslinking bond density, crosslinking bond structure composition and content, filler aggregation structure and rubber filler condensed state structure of crosslinked rubber under different research systems, processing technology, storage methods and time and practical application conditions were analyzed. The effects of molecular structure, filler structure and surface characteristics of crosslinked rubber, and rubber filler interaction on physical properties of vulcanized rubber were analyzed influence.
Topic 4: research and development of oil and low temperature resistant materials
The performance of several sealing materials under different temperature resistance conditions was studied, including solving the problem of low temperature resistance of fluororubber and silicone rubber, high temperature resistance of nitrile rubber, low temperature resistance of chloroprene rubber and low temperature elasticity improvement of acrylate rubber.
Topic 5: Study on Microstructure and interaction mechanism of rubber and filler in wet mixing process
Based on the wet mixing technology, the surface treatment and modification of rubber fillers, the microstructure of rubber, the interaction of rubber fillers and the improvement of dispersion of rubber fillers are studied. It is required that the hysteresis loss of tires produced by this technology should be reduced by at least 60% while the wear resistance remains unchanged.
Topic 6: Research on Key Technologies of intelligent tire
The project requires to solve the implantation methods and processes of active and passive pressure / temperature / RFID devices in tires, and carry out the research on demodulation technology and its evaluation platform under complex tire working conditions. Multi sensor technology integration and tire life cycle monitoring and analysis are realized.
Topic 7: Research on region segmentation method of tire X-ray image
Develop and design the accurate segmentation method of tire region based on gray texture features of X-ray images, including: for various specifications of tire X-ray images, develop 0 ~ 4 belt layer, sub mouth wrapping, reverse wrapping accurate segmentation and edge extraction algorithm.
Project 8: 3D structured light measurement system
Development and design of three-dimensional measurement system based on surface structured light, including: hardware selection and construction, research and development of high-precision (micron resolution) three-dimensional measurement system, which can use manipulator or turntable to measure the size of each part of the workpiece from various angles, and reconstruct the three-dimensional shape of the workpiece through three-dimensional splicing.
Topic 9: Tire X-ray image defect detection in inconsistent environment
According to the X-ray images of different tire factories, using the statistical texture information, a general recognition algorithm is designed to quickly and effectively identify bubbles and impurities, and carry out region segmentation to quantify the shape and area information. Finally, the recognition algorithm achieves the error rate of less than 2%, and the miss rate of less than 1%.
Topic 10: Research on positioning accuracy reliability of manipulator
Based on the faul
Characteristics and functions
2021-01-05
The addition of accelerator can promote the reaction between rubber and curing agent, improve the curing speed, reduce the curing temperature, shorten the curing time, reduce the amount of curing agent, and improve the physical and mechanical properties and chemical properties of vulcanizate.
A. Different rubber uses different curing system and accelerator types.
B. Accelerator plays a decisive role in scorch performance. The correct choice of accelerator is helpful to the mixing, calendering, extrusion and operation safety of rubber compound. Generally, molding vulcanization needs a certain scorch time, while no molding sulfur does not need a long scorch time.
C. The scorch resistance of the accelerant is related to its critical temperature. The accelerant can be activated rapidly when it is over the critical temperature. When a variety of accelerants are used together, some accelerants will be inhibited, and some accelerants will have greater activity at the critical temperature.
D. The vulcanizate should have a wide range of accelerators.
Rubber is a poor heat conductor. The internal heating condition of rubber surface is different. The wide vulcanization flatness is the guarantee to avoid excessive sulfur and make all parts of the product vulcanized evenly.
E. The reasonable combination of accelerators can also improve the aging properties of vulcanizates, have a certain plasticizing effect, and improve the processability of compounds. The disadvantages are poor dispersion and pollution of accelerators, and currently used accelerators are generally nontoxic.
The addition of accelerator can promote the reaction between rubber and curing agent, improve the curing speed, reduce the curing temperature, shorten the curing time, reduce the amount of curing agent, and improve the physical and mechanical properties and chemical properties of vulcanizate.
A. Different rubber uses different curing system and accelerator types.
B. Accelerator plays a decisive role in scorch performance. The correct choice of accelerator is helpful to the mixing, calendering, extrusion and operation safety of rubber compound. Generally, molding vulcanization needs a certain scorch time, while no molding sulfur does not need a long scorch time.
C. The scorch resistance of the accelerant is related to its critical temperature. The accelerant can be activated rapidly when it is over the critical temperature. When a variety of accelerants are used together, some accelerants will be inhibited, and some accelerants will have greater activity at the critical temperature.
D. The vulcanizate should have a wide range of accelerators.
Rubber is a poor heat conductor. The internal heating condition of rubber surface is different. The wide vulcanization flatness is the guarantee to avoid excessive sulfur and make all parts of the product vulcanized evenly.
E. The reasonable combination of accelerators can also improve the aging properties of vulcanizates, have a certain plasticizing effect, and improve the processability of compounds. The disadvantages are poor dispersion and pollution of accelerators, and currently used accelerators are generally nontoxic.
Frontier technology research
2021-01-05
Facing the development trend and trends of the rubber industry, the project is published in the direction of industrial application prospects in the industry, focusing on the common problems, mechanism research and the solution of basic problems in the preparation process of new materials in the rubber industry. There are 11 open projects, and the implementation period is no more than 3 years.
Topic 1: Research on simulation method and experimental method of rubber large deformation dynamic constitutive and limit condition
The macro and micro deformation behavior characteristics and mechanical evolution process of cross-linked rubber under external stress were studied. The computer analysis method and constitutive model of non-linear deformation behavior of cross-linked rubber under external stress were established. The mechanism of deformation and failure of rubber was analyzed by computer simulation of micro deformation behavior of rubber such as fracture, fatigue and friction.
Topic 2: Study on rare earth catalyst, polymerization technology and properties of rare earth isoprene gum for synthesis of high CIS polyisoprene
The controllable synthesis technology of high CIS polyisoprene was studied. The effect of rare earth catalyst on the polymerization performance was investigated. The relationship between the structure and performance of polyisoprene was also investigated. It is required to develop rare earth catalytic system with high activity, high selectivity and suitable for production, and the CIS content of high CIS polyisoprene rubber should not be less than 98%.
Topic 3: molecular structure and condensed state structure of vulcanized rubber
The changes of crosslinking bond density, crosslinking bond structure composition and content, filler aggregation structure and rubber filler condensed state structure of crosslinked rubber under different research systems, processing technology, storage methods and time and practical application conditions were analyzed. The effects of molecular structure, filler structure and surface characteristics of crosslinked rubber, and rubber filler interaction on physical properties of vulcanized rubber were analyzed influence.
Topic 4: research and development of oil and low temperature resistant materials
The performance of several sealing materials under different temperature resistance conditions was studied, including solving the problem of low temperature resistance of fluororubber and silicone rubber, high temperature resistance of nitrile rubber, low temperature resistance of chloroprene rubber and low temperature elasticity improvement of acrylate rubber.
Topic 5: Study on Microstructure and interaction mechanism of rubber and filler in wet mixing process
Based on the wet mixing technology, the surface treatment and modification of rubber fillers, the microstructure of rubber, the interaction of rubber fillers and the improvement of dispersion of rubber fillers are studied. It is required that the hysteresis loss of tires produced by this technology should be reduced by at least 60% while the wear resistance remains unchanged.
Topic 6: Research on Key Technologies of intelligent tire
The project requires to solve the implantation methods and processes of active and passive pressure / temperature / RFID devices in tires, and carry out the research on demodulation technology and its evaluation platform under complex tire working conditions. Multi sensor technology integration and tire life cycle monitoring and analysis are realized.
Topic 7: Research on region segmentation method of tire X-ray image
Develop and design the accurate segmentation method of tire region based on gray texture features of X-ray images, including: for various specifications of tire X-ray images, develop 0 ~ 4 belt layer, sub mouth wrapping, reverse wrapping accurate segmentation and edge extraction algorithm.
Project 8: 3D structured light measurement system
Development and design of three-dimensional measurement system based on surface structured light, including: hardware selection and construction, research and development of high-precision (micron resolution) three-dimensional measurement system, which can use manipulator or turntable to measure the size of each part of the workpiece from various angles, and reconstruct the three-dimensional shape of the workpiece through three-dimensional splicing.
Topic 9: Tire X-ray image defect detection in inconsistent environment
According to the X-ray images of different tire factories, using the statistical texture information, a general recognition algorithm is designed to quickly and effectively identify bubbles and impurities, and carry out region segmentation to quantify the shape and area information. Finally, the recognition algorithm achieves the error rate of less than 2%, and the miss rate of less than 1%.
Topic 10: Research on positioning accuracy reliability of manipulator
Based on the faul
Facing the development trend and trends of the rubber industry, the project is published in the direction of industrial application prospects in the industry, focusing on the common problems, mechanism research and the solution of basic problems in the preparation process of new materials in the rubber industry. There are 11 open projects, and the implementation period is no more than 3 years.
Topic 1: Research on simulation method and experimental method of rubber large deformation dynamic constitutive and limit condition
The macro and micro deformation behavior characteristics and mechanical evolution process of cross-linked rubber under external stress were studied. The computer analysis method and constitutive model of non-linear deformation behavior of cross-linked rubber under external stress were established. The mechanism of deformation and failure of rubber was analyzed by computer simulation of micro deformation behavior of rubber such as fracture, fatigue and friction.
Topic 2: Study on rare earth catalyst, polymerization technology and properties of rare earth isoprene gum for synthesis of high CIS polyisoprene
The controllable synthesis technology of high CIS polyisoprene was studied. The effect of rare earth catalyst on the polymerization performance was investigated. The relationship between the structure and performance of polyisoprene was also investigated. It is required to develop rare earth catalytic system with high activity, high selectivity and suitable for production, and the CIS content of high CIS polyisoprene rubber should not be less than 98%.
Topic 3: molecular structure and condensed state structure of vulcanized rubber
The changes of crosslinking bond density, crosslinking bond structure composition and content, filler aggregation structure and rubber filler condensed state structure of crosslinked rubber under different research systems, processing technology, storage methods and time and practical application conditions were analyzed. The effects of molecular structure, filler structure and surface characteristics of crosslinked rubber, and rubber filler interaction on physical properties of vulcanized rubber were analyzed influence.
Topic 4: research and development of oil and low temperature resistant materials
The performance of several sealing materials under different temperature resistance conditions was studied, including solving the problem of low temperature resistance of fluororubber and silicone rubber, high temperature resistance of nitrile rubber, low temperature resistance of chloroprene rubber and low temperature elasticity improvement of acrylate rubber.
Topic 5: Study on Microstructure and interaction mechanism of rubber and filler in wet mixing process
Based on the wet mixing technology, the surface treatment and modification of rubber fillers, the microstructure of rubber, the interaction of rubber fillers and the improvement of dispersion of rubber fillers are studied. It is required that the hysteresis loss of tires produced by this technology should be reduced by at least 60% while the wear resistance remains unchanged.
Topic 6: Research on Key Technologies of intelligent tire
The project requires to solve the implantation methods and processes of active and passive pressure / temperature / RFID devices in tires, and carry out the research on demodulation technology and its evaluation platform under complex tire working conditions. Multi sensor technology integration and tire life cycle monitoring and analysis are realized.
Topic 7: Research on region segmentation method of tire X-ray image
Develop and design the accurate segmentation method of tire region based on gray texture features of X-ray images, including: for various specifications of tire X-ray images, develop 0 ~ 4 belt layer, sub mouth wrapping, reverse wrapping accurate segmentation and edge extraction algorithm.
Project 8: 3D structured light measurement system
Development and design of three-dimensional measurement system based on surface structured light, including: hardware selection and construction, research and development of high-precision (micron resolution) three-dimensional measurement system, which can use manipulator or turntable to measure the size of each part of the workpiece from various angles, and reconstruct the three-dimensional shape of the workpiece through three-dimensional splicing.
Topic 9: Tire X-ray image defect detection in inconsistent environment
According to the X-ray images of different tire factories, using the statistical texture information, a general recognition algorithm is designed to quickly and effectively identify bubbles and impurities, and carry out region segmentation to quantify the shape and area information. Finally, the recognition algorithm achieves the error rate of less than 2%, and the miss rate of less than 1%.
Topic 10: Research on positioning accuracy reliability of manipulator
Based on the faul
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