广州化工
廣州化工
엄주화공
Guangzhou Chemical Industry
2015年
17期
67-70
,共4页
玻璃纤维%增强%微孔发泡PP
玻璃纖維%增彊%微孔髮泡PP
파리섬유%증강%미공발포PP
glass fiber( GF)%reinforce%microcellular foam PP
通过二次开模注射成型法制备了玻璃纤维增强微孔发泡PP复合材料,研究了玻纤的含量及长径比对微孔发泡PP复合材料力学性能的影响,用扫描电镜对发泡样品的微观形貌进行了表征。结果表明:玻纤的加入可显著改善微孔发泡PP体系的抗拉强度和弯曲强度,但冲击韧性却不断下降。长径比为13:3的玻纤相对于10:3对PP微孔发泡体系增强效果要好,尽管玻纤的加入抑制了泡孔的长大,但是总体上来看,泡孔的尺寸在20~40μm。
通過二次開模註射成型法製備瞭玻璃纖維增彊微孔髮泡PP複閤材料,研究瞭玻纖的含量及長徑比對微孔髮泡PP複閤材料力學性能的影響,用掃描電鏡對髮泡樣品的微觀形貌進行瞭錶徵。結果錶明:玻纖的加入可顯著改善微孔髮泡PP體繫的抗拉彊度和彎麯彊度,但遲擊韌性卻不斷下降。長徑比為13:3的玻纖相對于10:3對PP微孔髮泡體繫增彊效果要好,儘管玻纖的加入抑製瞭泡孔的長大,但是總體上來看,泡孔的呎吋在20~40μm。
통과이차개모주사성형법제비료파리섬유증강미공발포PP복합재료,연구료파섬적함량급장경비대미공발포PP복합재료역학성능적영향,용소묘전경대발포양품적미관형모진행료표정。결과표명:파섬적가입가현저개선미공발포PP체계적항랍강도화만곡강도,단충격인성각불단하강。장경비위13:3적파섬상대우10:3대PP미공발포체계증강효과요호,진관파섬적가입억제료포공적장대,단시총체상래간,포공적척촌재20~40μm。
The microcellular foam PP materials reinforced by glass fiber ( GF ) were prepared by second-open molding. The influence of the content and slenderness ratio of GF to the mechanical properties of microcellular foam PP materials was studied. The microstructure of foams samples was characterized using scanning electron microscope. The results showed that the tensile and flexural strength increased obviously with the increasing content of the GF, and the notch impact strength decreased. The GF with the slenderness ratio of 13:3 had the larger flexural strength than the GF with the slenderness ratio of 10:3. The addition of glass fiber inhibited the growth of the bubble hole, but overall, little changed in the extent of cell size, basically 20~40 μm.