Keyword: «impregnation»

STUDY OF PHYSICAL AND MECHANICAL PROPERTIES OF MODIFIED CONTINUOUS BASALT FIBRE WITH OILING COMPOSITIONS

Authors:

Alina Vasileva,

Elena Vasileva,

Aleksei Tyisov

The possibility and technical efficiency of FA-513 nanomodifier application in the compositions of greasers No.76 and No.4C have been confirmed. Optimal concentrations of FA-513 for greasers in the manufacture of microplastics have been established by the impregnation method. The obtained microplastics showed an increase in physical and mechanical characteristics by 12-25%.

Keywords: breaking load, modification, basalt fibre, impregnation, oiling agent

INTEGRITY RESTORATION OF GRADE III-IV MAMMOTH TUSKS BY RESIN TREATMENT FOR SUBSEQUENT SOUVENIR PRODUCTION VIA CNC MILLING

Authors:

Gleb Botvin,

Vyacheslav Petrov,

Aleksandr Chirikov,

Tatyana Isakova,

Tyskyl Solovev

A method for the treatment of grade III-IV mammoth tusks with polymer resins has been developed to produce blanks suitable for subsequent processing on computer numerical control (CNC) machines. The procedure consists of alternating vacuum treatment stages with a stage in which the sample is maintained under excess pressure during treatment. This sequence has been identified as the most effective approach for preserving the structural integrity of low-grade mammoth tusk blanks.

Keywords: stabilization, impregnation, mammoth ivory, polymer resins, milling