中山大学学报(自然科学版)
中山大學學報(自然科學版)
중산대학학보(자연과학판)
ACTA SCIENTIARUM NATURALIUM UNIVERSITATIS SUNYATSENI
2007年
z1期
237-238
,共2页
谢雪甜%李凯夫%闫雪%关丽涛
謝雪甜%李凱伕%閆雪%關麗濤
사설첨%리개부%염설%관려도
木塑复合材料%光稳定剂%湿热氧老化
木塑複閤材料%光穩定劑%濕熱氧老化
목소복합재료%광은정제%습열양노화
wood plastic composites%light stabilizer%wet-dry-oxidation aging
采用气候箱设置温湿度交变的循化对木塑复合材料进行湿热氧老化试验,结果表明不同光稳定剂对黎蒴栲/PVC复合材料各项力学性能影响显著.湿热氧老化后木塑复合材料弯曲性能和拉伸强度均大幅度下降;拉伸断裂伸长率和冲击韧性,添加了受阻胺和UV300的稍有上升外,其余的稍有下降;并通过FTIR谱图分析湿热氧老化前后基团的变化,得出湿热氧老化机理.
採用氣候箱設置溫濕度交變的循化對木塑複閤材料進行濕熱氧老化試驗,結果錶明不同光穩定劑對黎蒴栲/PVC複閤材料各項力學性能影響顯著.濕熱氧老化後木塑複閤材料彎麯性能和拉伸彊度均大幅度下降;拉伸斷裂伸長率和遲擊韌性,添加瞭受阻胺和UV300的稍有上升外,其餘的稍有下降;併通過FTIR譜圖分析濕熱氧老化前後基糰的變化,得齣濕熱氧老化機理.
채용기후상설치온습도교변적순화대목소복합재료진행습열양노화시험,결과표명불동광은정제대려삭고/PVC복합재료각항역학성능영향현저.습열양노화후목소복합재료만곡성능화랍신강도균대폭도하강;랍신단렬신장솔화충격인성,첨가료수조알화UV300적초유상승외,기여적초유하강;병통과FTIR보도분석습열양노화전후기단적변화,득출습열양노화궤리.
Wet-dry-oxidation aging was studied using climatic box. The results showed that different light stabilizers had great impacts on wood plastic composites. flexural properties and tensile strength decreased greatly meanwhile tensile elongation at break and impact ductility decreased a little except for those added with HALS and UV300 after wet-dry-oxidation aging.Wet-dry-oxidation aging mechanism of wood-plastic composite was also discussed by means of FTIR.
