EFFECT OF BROMINATED CARDANOL NOVOLAC RESIN ON THE PROPERTIES OF WOOD-POLYMER COMPOSITES BASED ON POLYETHYLENE
Rubrics: 2. CHEMICAL TECHNOLOGY
Authors:
1.
Ural'skiy institut gosudarstvennoy protivopozharnoy sluzhby (UI GPS) MChS Rossii
2.
Ural'skiy gosud. lesotehnicheskiy un-t
3.
Ural'skiy institut gosudarstvennoy protivopozharnoy sluzhby MChS Rossii
4.
Ural State Forest Engineering University
Type:
Article
Pages:
from 89
to 93
Status:
Published
Received:
22.12.2025
Accepted:
23.12.2025
Published:
23.12.2025
Language:
Russian
Keywords:
BROMINATED CARDANOL RESIN, NOVOLAC RESIN, LOW-DENSITY POLYETHYLENE, WPC, COMPOSITE, PHYSICAL AND MECHANICAL PROPERTIES
Abstract (English):
The paper presents the results of a comprehensive study of the effect of brominated cardanol novolac resin (BCN) content on the physicomechanical and performance properties of wood-polymer composites (WPC) based on high-density polyethylene. Experimental studies were conducted in a wide range of BCN concentrations from 11.8% to 28.6% using modern testing methods. A complex and nonlinear effect of the modifying additive on the key characteristics of the composites was established. The research results revealed a pronounced dependence of the mechanical properties on the BCN content. The optimal concentration of the modifying additive was determined to be 21.1%, at which the maximum values of the compressive modulus (897.4 MPa), Brinell hardness (40.8 MPa) and elasticity number (76.9%) are achieved. It is shown that exceeding the optimal content of BCNS leads to a significant decrease in mechanical characteristics due to aggregation of additive particles and disruption of interphase interaction in the composite. Of particular interest is the identified improvement in the hydrophobic properties of the composites - water absorption decreases by 13% with an increase in the concentration of BCNS from 11.8% to 28.6%. A characteristic compromise between static and dynamic characteristics is noted: an increase in rigidity and strength is accompanied by a natural decrease in impact toughness. The results of the work demonstrate the promise of using BCNS as an effective multifunctional modifier for comprehensive improvement of the performance properties of wood-polymer composites. The data obtained are of practical interest for the development of new compositions of materials with specified characteristics for various industries.
The paper presents the results of a comprehensive study of the effect of brominated cardanol novolac resin (BCN) content on the physicomechanical and performance properties of wood-polymer composites (WPC) based on high-density polyethylene. Experimental studies were conducted in a wide range of BCN concentrations from 11.8% to 28.6% using modern testing methods. A complex and nonlinear effect of the modifying additive on the key characteristics of the composites was established. The research results revealed a pronounced dependence of the mechanical properties on the BCN content. The optimal concentration of the modifying additive was determined to be 21.1%, at which the maximum values of the compressive modulus (897.4 MPa), Brinell hardness (40.8 MPa) and elasticity number (76.9%) are achieved. It is shown that exceeding the optimal content of BCNS leads to a significant decrease in mechanical characteristics due to aggregation of additive particles and disruption of interphase interaction in the composite. Of particular interest is the identified improvement in the hydrophobic properties of the composites - water absorption decreases by 13% with an increase in the concentration of BCNS from 11.8% to 28.6%. A characteristic compromise between static and dynamic characteristics is noted: an increase in rigidity and strength is accompanied by a natural decrease in impact toughness. The results of the work demonstrate the promise of using BCNS as an effective multifunctional modifier for comprehensive improvement of the performance properties of wood-polymer composites. The data obtained are of practical interest for the development of new compositions of materials with specified characteristics for various industries.
Keywords:
BROMINATED CARDANOL RESIN, NOVOLAC RESIN, LOW-DENSITY POLYETHYLENE, WPC, COMPOSITE, PHYSICAL AND MECHANICAL PROPERTIES
BROMINATED CARDANOL RESIN, NOVOLAC RESIN, LOW-DENSITY POLYETHYLENE, WPC, COMPOSITE, PHYSICAL AND MECHANICAL PROPERTIES
