合成橡胶工业
閤成橡膠工業
합성상효공업
China Synthetic Rubber Industry
2015年
6期
438-441
,共4页
聚醚多元醇%疏水性%聚醚型聚氨酯弹性体%表面性能%物理机械性能%微观结构%动态力学性能
聚醚多元醇%疏水性%聚醚型聚氨酯彈性體%錶麵性能%物理機械性能%微觀結構%動態力學性能
취미다원순%소수성%취미형취안지탄성체%표면성능%물리궤계성능%미관결구%동태역학성능
polyether polyol%hydrophobicity%polyether type polyurethane elastomer%surface per-formance%mechanical property%microstructure%dy-namic mechanical property
以聚醚多元醇、甲苯二异氰酸酯和3,3′-二氯-4,4′-二氨基二苯甲烷为原料,添加不同的疏水性物质制备了聚醚型聚氨酯弹性体(PUE),考察了不同疏水性物质及其用量、聚醚多元醇的相对分子质量对 PUE 物理机械性能和表面性能的影响,通过傅里叶变换红外光谱表征了 PUE 的微观结构,并研究了 PUE 的动态力学性能。结果表明,在氟碳助剂(GK - F 01)、聚醚改性聚二甲基硅氧烷、有机硅改性丙烯酸酯、八氟戊醇4种疏水性物质中,添加 GK - F 01的 PUE 的接触角最大,但 PUE 的邵尔 A 硬度、拉伸强度和撕裂强度稍有降低；在—NCO 质量分数为6%、GK - F 01质量分数为1．0%的条件下,采用相对分子质量为1500的聚醚多元醇制得 PUE 的表面性能最佳,与水的接触角可达到101．2°；随着GK - F 01含量的增加,PUE 的内摩擦力降低,耐低温性能得到改善。
以聚醚多元醇、甲苯二異氰痠酯和3,3′-二氯-4,4′-二氨基二苯甲烷為原料,添加不同的疏水性物質製備瞭聚醚型聚氨酯彈性體(PUE),攷察瞭不同疏水性物質及其用量、聚醚多元醇的相對分子質量對 PUE 物理機械性能和錶麵性能的影響,通過傅裏葉變換紅外光譜錶徵瞭 PUE 的微觀結構,併研究瞭 PUE 的動態力學性能。結果錶明,在氟碳助劑(GK - F 01)、聚醚改性聚二甲基硅氧烷、有機硅改性丙烯痠酯、八氟戊醇4種疏水性物質中,添加 GK - F 01的 PUE 的接觸角最大,但 PUE 的邵爾 A 硬度、拉伸彊度和撕裂彊度稍有降低；在—NCO 質量分數為6%、GK - F 01質量分數為1．0%的條件下,採用相對分子質量為1500的聚醚多元醇製得 PUE 的錶麵性能最佳,與水的接觸角可達到101．2°；隨著GK - F 01含量的增加,PUE 的內摩抆力降低,耐低溫性能得到改善。
이취미다원순、갑분이이청산지화3,3′-이록-4,4′-이안기이분갑완위원료,첨가불동적소수성물질제비료취미형취안지탄성체(PUE),고찰료불동소수성물질급기용량、취미다원순적상대분자질량대 PUE 물리궤계성능화표면성능적영향,통과부리협변환홍외광보표정료 PUE 적미관결구,병연구료 PUE 적동태역학성능。결과표명,재불탄조제(GK - F 01)、취미개성취이갑기규양완、유궤규개성병희산지、팔불무순4충소수성물질중,첨가 GK - F 01적 PUE 적접촉각최대,단 PUE 적소이 A 경도、랍신강도화시렬강도초유강저；재—NCO 질량분수위6%、GK - F 01질량분수위1．0%적조건하,채용상대분자질량위1500적취미다원순제득 PUE 적표면성능최가,여수적접촉각가체도101．2°；수착GK - F 01함량적증가,PUE 적내마찰력강저,내저온성능득도개선。
Polyether type polyurethane elastomer (PUE) was prepared with polyether polyols, 2,4-toluene diisocyanate and 3,3′-dichloro-4,4′-diami-no-diphenylmethane as raw material by adding dif-ferent hydrophobic substances. The effects of differ-ent hydrophobic substances and the relative molecu-lar mass of polyether polyol on mechanical properties and surface performance of the PUE were investiga-ted, the microstructure of the PUE was characterized by Flourier transform infrared spectroscopy, and the dynamic mechanical properties of the PUE was stud-ied. The results showed that in the PUE which were added respectively with four kinds of hydrophobic substances including fluorocarbon additive ( GK-F 01), polyether-modified polydimethylsiloxane, silicone-modified acrylate and octafluoropentanol, the PUE with GK-F 01 had the biggest contact angle and slightly lower Shore A hardness, tensile strength and tear strength. When the mass fraction of —NCO was 6. 0% , that of GK-F 01 1. 0% and the relative-ly molecular mass of the polyether polyol 1 500, the surface performance of the prepared PUE was the best, the contact angle with water reached up to 101. 2°. With the increase of GK-F 01, the internal friction of the PUE reduced, so that the low temper-ature performance was improved.
