合成树脂及塑料
閤成樹脂及塑料
합성수지급소료
CHINA SYNTHETIC RESIN AND PLASTICS
2015年
1期
56-58
,共3页
聚甲醛%改性%紫外光吸收剂%耐候%老化
聚甲醛%改性%紫外光吸收劑%耐候%老化
취갑철%개성%자외광흡수제%내후%노화
polyoxymethylene%modification%ultraviolet absorber%weathering resistance%aging
研究了紫外光吸收剂、热稳定剂、光稳定剂等复合助剂对聚甲醛（POM）耐候性能的影响，并对改性前后的POM进行了人工加速老化测试和评价。结果表明：经人工加速老化500，1000h后，改性POM的拉伸强度、弯曲强度、悬臂梁缺口冲击强度保持率分别达到104.0%和106.0%，106.0%和107.0%，68.9%和62.2%；老化前后改性POM颜色基本没有变化，远优于未经耐候改性POM的相应性能。
研究瞭紫外光吸收劑、熱穩定劑、光穩定劑等複閤助劑對聚甲醛（POM）耐候性能的影響，併對改性前後的POM進行瞭人工加速老化測試和評價。結果錶明：經人工加速老化500，1000h後，改性POM的拉伸彊度、彎麯彊度、懸臂樑缺口遲擊彊度保持率分彆達到104.0%和106.0%，106.0%和107.0%，68.9%和62.2%；老化前後改性POM顏色基本沒有變化，遠優于未經耐候改性POM的相應性能。
연구료자외광흡수제、열은정제、광은정제등복합조제대취갑철（POM）내후성능적영향，병대개성전후적POM진행료인공가속노화측시화평개。결과표명：경인공가속노화500，1000h후，개성POM적랍신강도、만곡강도、현비량결구충격강도보지솔분별체도104.0%화106.0%，106.0%화107.0%，68.9%화62.2%；노화전후개성POM안색기본몰유변화，원우우미경내후개성POM적상응성능。
The?author?studied?the?influences?of?composite?additives?including?ultraviolet?absorber,heat?sta-bilizer,light?stabilizer,etc.?on?weathering?resistant?performance?of?polyoxymethylene(POM).?The?artificial?ac-celerated?aging?behaviors?of?POM?before?and?after?weathering?resistant?modification?were?evaluated.?The?results?show?that?the?retention?of?the?tensile?strength,flexural?strength?and?Izod?notched?impact?strength?of?the?modified?POM?reach?104.0%?and?106.0%,106.0%?and?107.0%,68.9%?and?62.2%?respectively?when?the?modified?POM?is?aged?for?500?h?and?1?000?h.?And?the?color?of?the?modified?POM?before?and?after?aging?has?little?change,which?is?much?better?than?the?corresponding?properties?of?POM?without?modification.
