Unlock instant, AI-driven research and patent intelligence for your innovation.

Method for improving performance of cots and aprons

A rubber ring and performance technology, applied in the field of improving the performance of rubber rollers and rubber rings, can solve problems such as failure to meet performance requirements, low production safety, eccentric deformation of rubber rollers, etc., to reduce wear, shorten production time, and stretch The effect of increasing strength

Inactive Publication Date: 2019-10-08
JIANGNAN UNIV
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] For the improvement of the performance of the rubber roller and apron, in 1996, a factory in my country improved the gap in the production process, changing the large gap into a small gap of 2mm to solve the quality problem of the eccentric deformation of the rubber roller, and then someone used Co 60 radiation source γ-rays irradiate the rubber roller, and the physical and mechanical properties are improved, but the γ-rays have radiation damage to the human body, and the production safety is not high. Some ultraviolet rays are used for irradiation treatment, and the service life is improved, but Due to low UV energy, but cannot meet the required performance requirements

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for improving performance of cots and aprons
  • Method for improving performance of cots and aprons
  • Method for improving performance of cots and aprons

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] raw material:

[0023]

[0024]

[0025] The first step: add magnesium oxide, white carbon black, accelerator TMTD, liquid SN antistatic agent, and nitrile rubber (acrylonitrile content 33%) into the internal mixer and mix, then add sulfur and TMPTMA to mix again, pass Filtrate with a filter, then knead evenly again, extrude through a feeding extruder, and put it into a steam-type high-temperature and high-pressure vulcanization tank. The vulcanization temperature is 152°C, the vulcanization time is 45min, and the pressure is 0.6MPa;

[0026] The second step: pass through a 5 Mev electron accelerator under normal pressure, apply a dose of 90kGy to it, and irradiate it three times at a temperature of 30°C, each time for 2s, to obtain the product.

Embodiment 2

[0028] raw material:

[0029]

[0030] The first step: add magnesium oxide, white carbon black, accelerator TMTD, liquid SN antistatic agent, and nitrile rubber (acrylonitrile content 33%) into the internal mixer and mix, then add sulfur and TMPTMA and mix again, pass The filter is filtered, and then added to the internal mixer to mix evenly, extruded by a feeding extruder, and put into a steam-type high-temperature and high-pressure vulcanization tank. The vulcanization temperature is 152 ° C, the vulcanization time is 45 minutes, and the pressure is 0.6 MPa;

[0031] The second step: pass through a 5 Mev electron accelerator under normal pressure, apply a dose of 70kGy of radiation to it, the radiation temperature is 60°C, and irradiate once for 1 second to obtain the product.

Embodiment 3

[0033] raw material:

[0034]

[0035] The first step: add magnesium oxide, white carbon black, accelerator TMTD, liquid SN antistatic agent, and nitrile rubber (acrylonitrile content 33%) into the internal mixer and mix, then add sulfur and TMPTMA to mix again, pass The filter is filtered, and then added to the internal mixer to mix evenly, extruded by a feeding extruder, and put into a steam-type high-temperature and high-pressure vulcanization tank. The vulcanization temperature is 152 ° C, the vulcanization time is 45 minutes, and the pressure is 0.6 MPa;

[0036] The second step: pass through a 5 Mev electron accelerator under normal pressure, apply a dose of 50kGy of radiation to it, the radiation temperature is 80°C, and irradiate once for 4s to obtain the product.

[0037] The product technological conditions and performance thereof that embodiment 1~3 make are as shown in table 1, table 2

[0038] Table 1 product process conditions

[0039]

[0040] Table 2 pr...

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

Disclosed is a method for improving the performance of cots and aprons. The method includes the steps of 1), subjecting to formed nitrile rubber to vulcanization treatment by adopting a vulcanizationtank, wherein the vulcanization temperature is 130-200DEG C, the vulcanization time is 20-200 minutes, and the pressure is 0-2MPa; 2), performing vulcanization treatment through an electron beam at the irradiation temperature of 25-150DEG C. The cots and aprons obtained are more complete in cross-linking, elasticity, hardness, tensile strength and wear resistance are obviously improved, the production time is different from the original process production time, and the production time is lower than that of the original process time.

Description

technical field [0001] The invention relates to a method for improving the performance of rubber rollers and aprons, and belongs to the technical field of rubber vulcanization. Background technique [0002] Cots and aprons are important traction components in spinning, and play an important role in the yarn forming process. Their performance has a great influence on yarn evenness, yarn defects, yarn strength, end-break rate, and cot flower rate. , especially affects its service life, and the service life gap in production and processing is more obvious; and for special spinning processes, such as vortex spinning, etc., the rubber roller and apron are required to have better performance, such as elasticity, wear resistance, permanent deformation, etc. However, there is still a big gap between my country's high-performance products and foreign products, which needs to be resolved urgently. [0003] Rubber rollers and aprons are different from other rubber products, such as spor...

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
IPC IPC(8): C08J3/24C08J3/28C08L9/02C08K13/02C08K3/22C08K3/36C08K5/09C08K5/40B29C35/04B29C35/08
CPCB29C35/049B29C35/0866B29C2035/0877C08J3/24C08J3/28C08J2309/02C08K3/36C08K5/09C08K5/40C08K13/02C08K2003/222
Inventor 范雪荣佟楠楠王强余圆圆王平袁久刚徐进
Owner JIANGNAN UNIV