OBTAINING AND STUDYING THE PROPERTIES OF COMPOSITE MATERIALS WITHOUT RESINS BASED ON COMMON REED
Rubrics: 2. CHEMICAL TECHNOLOGY
Authors:
1.
Ural State Forest Engineering University
(HTI, associate professor)
from 01.01.2005 until now
Yekaterinburg, Ekaterinburg, Russian Federation
from 01.01.2005 until now
Yekaterinburg, Ekaterinburg, Russian Federation
2.
Ural State Forest Engineering University
Ekaterinburg, Ekaterinburg, Russian Federation
Ekaterinburg, Ekaterinburg, Russian Federation
3.
Ural State Forestry Engineering University
Russian Federation
Russian Federation
4.
Ural State Forest Engineering University
(professor)
Ekaterinburg, Russian Federation
Ekaterinburg, Russian Federation
Type:
Article
Pages:
from 99
to 106
Status:
Published
Received:
07.08.2025
Accepted:
07.08.2025
Published:
07.08.2025
Language:
Russian
Keywords:
PLASTICS, PLANT BIOMASS, COMMON REED, PHYSICAL AND MECHANICAL PROPERTIES, BIODEGRADABILITY
Abstract (English):
The present study is a continuation of a series of papers devoted to plastics without resins (PWR) based on biomass of plant origin. Currently, a number of scientists and manufacturers are using biomass from annual plants as a filler for composite materials. This solution makes it possible to reduce the cost of production by replacing traditional valuable wood. Both whole plants and their components, such as leaves, stems, shoots and other parts, including in the form of felling residues, can be used as biomass. The transition from the production technology of composite materials based on primary natural raw materials (wood) to the use of secondary raw materials (agricultural and agricultural waste, plant biomass) should ensure the competitiveness of secondary raw materials in relation to primary. One of the key criteria that secondary raw materials should meet is their stable formation or large-scale reserves with minimal material costs. Vegetable raw materials in the form of biomass of common reed have the following characteristics. In this study, it is proposed to use a press material based on cane biomass with a particle fraction of less than 1.2 mm, while the total content of such particles in the fractionated biomass is about 86%. It is recommended to isolate particles with a size of 0.7 mm or less, as they have the highest reactivity during piezothermal treatment. It is established that the strength properties of PWR will depend on the larger size and shape of the particles. High strength properties of PWR samples were determined for press raw materials with a fraction of 1.2 mm. Based on the indicators of water and moisture absorption of PWR samples, it can be concluded that the studied vegetable filler is not able to completely replace wood. In general, all PWRs created on the basis of non-woody plant raw materials demonstrate low water resistance. However, previous studies indicate that PWRs based on non-woody plant raw materials are characterized by the initial stages of biodegradability, which are carried out by a hydrolytic mechanism. The fractionated biomass of cane includes both lamellar and needle-like particles, mainly consisting of the lignified part of the stem. This part has increased resistance due to the presence of lignin in the cell walls, which has preservative properties and performs an antiseptic function. The results of the assessment of the degree of biodegradability of PWR in relation to soil for 90 days and the obtained marker morphological features indicate that the studied samples can be attributed to materials with moderate (partial) biodegradability, due to the characteristics of the initial filler.
The present study is a continuation of a series of papers devoted to plastics without resins (PWR) based on biomass of plant origin. Currently, a number of scientists and manufacturers are using biomass from annual plants as a filler for composite materials. This solution makes it possible to reduce the cost of production by replacing traditional valuable wood. Both whole plants and their components, such as leaves, stems, shoots and other parts, including in the form of felling residues, can be used as biomass. The transition from the production technology of composite materials based on primary natural raw materials (wood) to the use of secondary raw materials (agricultural and agricultural waste, plant biomass) should ensure the competitiveness of secondary raw materials in relation to primary. One of the key criteria that secondary raw materials should meet is their stable formation or large-scale reserves with minimal material costs. Vegetable raw materials in the form of biomass of common reed have the following characteristics. In this study, it is proposed to use a press material based on cane biomass with a particle fraction of less than 1.2 mm, while the total content of such particles in the fractionated biomass is about 86%. It is recommended to isolate particles with a size of 0.7 mm or less, as they have the highest reactivity during piezothermal treatment. It is established that the strength properties of PWR will depend on the larger size and shape of the particles. High strength properties of PWR samples were determined for press raw materials with a fraction of 1.2 mm. Based on the indicators of water and moisture absorption of PWR samples, it can be concluded that the studied vegetable filler is not able to completely replace wood. In general, all PWRs created on the basis of non-woody plant raw materials demonstrate low water resistance. However, previous studies indicate that PWRs based on non-woody plant raw materials are characterized by the initial stages of biodegradability, which are carried out by a hydrolytic mechanism. The fractionated biomass of cane includes both lamellar and needle-like particles, mainly consisting of the lignified part of the stem. This part has increased resistance due to the presence of lignin in the cell walls, which has preservative properties and performs an antiseptic function. The results of the assessment of the degree of biodegradability of PWR in relation to soil for 90 days and the obtained marker morphological features indicate that the studied samples can be attributed to materials with moderate (partial) biodegradability, due to the characteristics of the initial filler.
Keywords:
PLASTICS, PLANT BIOMASS, COMMON REED, PHYSICAL AND MECHANICAL PROPERTIES, BIODEGRADABILITY
PLASTICS, PLANT BIOMASS, COMMON REED, PHYSICAL AND MECHANICAL PROPERTIES, BIODEGRADABILITY
