A research group of the nano sci-tech institute at Kim Chaek University of Technology has developed new nano composite plastic belts for coal mining.
The application of nanotechnology in the production of plastic belts makes it possible to improve their dynamical, mechanical, and electrical properties so that they could be used more efficiently in different economic sectors. Even the countries that produce natural rubber or synthetic rubber tend to manufacture belts with plastic instead of rubber.
Scientists of the institute, who have made good achievements in the application and research of nano-materials, conducted research to develop nano composite plastic belts for coal mining based on domestic raw materials in line with the trend of using plastic belts.
They selected locally available nano-materials and continued with research and experiment. As a result, they managed to obtain a new nano composite plastic material by mixing plastic material with nano powder that has undergone special chemical treatment.
On this basis, they successfully solved problems arising in the heat treatment of the belt mesh dipped into the nano composite material solution, and have established the production process.
The new nano composite plastic belt production technology is expected to help boost the production and reduce the frequency of mishaps by friction between rubber belts and drive rollers in coal and ore mines.
Kim Wi Hyok
More From Naenara (En)
All the people across the DPRK honoured the memory of Chairman Kim Jong Il in humblest reverence on the occasion of the 14th
December 19, 2025
All the people across the DPRK honoured the memory of Chairman Kim Jong Il in humblest reverence on the occasion of the 14th
All the people in the DPRK greeted December with ardent yearning for Chairman Kim Jong Il who devoted his noble life to
December 19, 2025
All the people in the DPRK greeted December with ardent yearning for Chairman Kim Jong Il who devoted his noble life to
DPRK players returned home on December 16 after taking part in the 5th Asian Youth Para Games held in the United Arab Emirates.
December 18, 2025
DPRK players returned home on December 16 after taking part in the 5th Asian Youth Para Games held in the United Arab Emirates.
Thanks to the ardent desire of the Central Committee of the great Workers’ Party of Korea, stirring events demonstrating the
December 18, 2025
Thanks to the ardent desire of the Central Committee of the great Workers’ Party of Korea, stirring events demonstrating the
Officials and members of the Socialist Women’s Union of Korea (SWUK) held a meeting at the Hall of Women on December 16 to hear
December 18, 2025
Officials and members of the Socialist Women’s Union of Korea (SWUK) held a meeting at the Hall of Women on December 16 to hear
DPRK schoolchildren met at the Mangyongdae Schoolchildren’s Palace on December 16 to tell stories about the great leader Generalis
December 18, 2025
DPRK schoolchildren met at the Mangyongdae Schoolchildren’s Palace on December 16 to tell stories about the great leader Generalis
Officials of the Union of Agricultural Workers of Korea (UAWK) and agricultural workers held a meeting to hear about the noble
December 18, 2025
Officials of the Union of Agricultural Workers of Korea (UAWK) and agricultural workers held a meeting to hear about the noble
Chilsong Restaurant located at the foot of picturesque Moran Hill in Pyongyang draws many visitors. As one of the established
December 18, 2025
Chilsong Restaurant located at the foot of picturesque Moran Hill in Pyongyang draws many visitors. As one of the established
Workers and members of the General Federation of Trade Unions of Korea (GFTUK) met at the Central Hall of Workers on December 15
December 17, 2025
Workers and members of the General Federation of Trade Unions of Korea (GFTUK) met at the Central Hall of Workers on December 15
Youth and students met at the Central Youth Hall on December 15 to tell stories about the noble virtues of Chairman Kim Jong Il on
December 17, 2025
Youth and students met at the Central Youth Hall on December 15 to tell stories about the noble virtues of Chairman Kim Jong Il on
Preserved in the Kumsusan Palace of the Sun where the great leader Comrade Kim Jong Il (February 16, 1942–December 17, 2011)
December 17, 2025
Preserved in the Kumsusan Palace of the Sun where the great leader Comrade Kim Jong Il (February 16, 1942–December 17, 2011)
Rangnim County of the DPRK has greeted the moment of celebrating the inauguration of regional-industry factories built under the
December 17, 2025
Rangnim County of the DPRK has greeted the moment of celebrating the inauguration of regional-industry factories built under the
Modern regional-industry factories have appeared in Taegwan County, North Phyongan Province of the DPRK, adorning more brilliantly
December 17, 2025
Modern regional-industry factories have appeared in Taegwan County, North Phyongan Province of the DPRK, adorning more brilliantly
Regional-industry factories have been built in inland mountainous Sinyang County of the DPRK to fundamentally improve the quality
December 17, 2025
Regional-industry factories have been built in inland mountainous Sinyang County of the DPRK to fundamentally improve the quality
Along with the second inauguration season in implementing the regional development policy confidently promoted by the great
December 17, 2025
Along with the second inauguration season in implementing the regional development policy confidently promoted by the great
In the DPRK the best domestic products of the year are awarded the December 15 Quality Medal and certificate. Amid the fierce
December 17, 2025
In the DPRK the best domestic products of the year are awarded the December 15 Quality Medal and certificate. Amid the fierce
The Myohyangsan History Museum is situated at the foot of Mt Myohyang, a celebrated mountain of the DPRK. The museum covers the
December 17, 2025
The Myohyangsan History Museum is situated at the foot of Mt Myohyang, a celebrated mountain of the DPRK. The museum covers the
Modern houses have been built at the Majon and Naeho farms in Hamhung City and the Paeksang Farm in Pujon County, South Hamgyong
December 16, 2025
Modern houses have been built at the Majon and Naeho farms in Hamhung City and the Paeksang Farm in Pujon County, South Hamgyong
“I was deeply captivated by the colourful and glossy craftworks.” “The refined and delicate jade works show our people’s
December 16, 2025
“I was deeply captivated by the colourful and glossy craftworks.” “The refined and delicate jade works show our people’s
For the DPRK this year is the fourth year of the implementation of the rural revolution programme in the new era. Throughout the
December 16, 2025
For the DPRK this year is the fourth year of the implementation of the rural revolution programme in the new era. Throughout the
More Articles