Fast-growing pine wood modified by a two-step treatment based on heating and in situ polymerization of polystyrene

被引：14
作者：
Acosta, Andrey Pereira [1 ]
Delucis, Rafael de Avila [1 ]
Amico, Sandro Campos [2 ]
Gatto, Darci Alberto [1 ]
机构：
[1] Univ Fed Pelotas, Postgrad Program Mat Sci & Engn, Pelotas, RS, Brazil
[2] Univ Fed Rio Grande do Sul, Postgrad Program Min Met & Mat Engn, Porto Alegre, RS, Brazil
来源：
CONSTRUCTION AND BUILDING MATERIALS | 2021年 / 302卷
关键词：
Thermorretification; Polystyrene; Pine wood; Two-step treatment; Wood modification; STRENGTH PROPERTIES; THERMAL-TREATMENT; RESISTANCE;
D O I：
10.1016/j.conbuildmat.2021.124422
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
This study deals with a two-step treatment, in which a thermorretification at 180 degrees C for 2 his followed by the in situ polymerization of polystyrene into a fast-growing pine wood. The treatment with polystyrene recovered losses in both stiffness and strength attributed to the thermal modification. Compared to the heat-treated wood, the two-step treated pine wood presented higher thermal stability (40%), termites resistance (8%), water uptake (300%), hydrophobicity, along with similar decay resistance, and surface colour and roughness.
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收藏
页数：11
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