工程塑料应用
工程塑料應用
공정소료응용
ENGINEERING PLASTICS APPLICATION
2014年
6期
7-12
,共6页
腰果酚%焦油粗酚%酚醛树脂%酚醛泡沫塑料
腰果酚%焦油粗酚%酚醛樹脂%酚醛泡沫塑料
요과분%초유조분%분철수지%분철포말소료
cardanol%tar crude phenol%phenolic resin%phenolic foam plastic
为降低酚醛泡沫塑料的成本，改善其性能，以焦油粗酚、苯酚、多聚甲醛为原材料，腰果酚为改性剂，合成可发性腰果酚改性焦油粗酚酚醛树脂，发泡制备出腰果酚改性焦油粗酚酚醛泡沫塑料。研究了腰果酚用量对改性焦油粗酚酚醛泡沫塑料保温性能、阻燃性能、吸水率、力学性能和耐热稳定性等的影响，并通过傅立叶变换红外光谱仪对合成改性焦油粗酚酚醛树脂进行了表征，通过生物显微镜、热重分析仪对改性焦油粗酚酚醛泡沫塑料的微观结构和耐热稳定性进行表征。结果表明，腰果酚的加入使改性焦油粗酚酚醛泡沫塑料的综合性能有较大改善，当腰果酚占混合酚的质量分数为15%时，改性焦油粗酚酚醛泡沫塑料的综合性能最佳，吸水率为4.51%，压缩强度为0.31 MPa，弯曲强度为0.55 MPa，导热系数为0.036 W/(m · K)，极限氧指数为35.2％。改性焦油粗酚酚醛泡沫塑料的保温、阻燃性能和耐热稳定性较好，泡孔致密均匀。
為降低酚醛泡沫塑料的成本，改善其性能，以焦油粗酚、苯酚、多聚甲醛為原材料，腰果酚為改性劑，閤成可髮性腰果酚改性焦油粗酚酚醛樹脂，髮泡製備齣腰果酚改性焦油粗酚酚醛泡沫塑料。研究瞭腰果酚用量對改性焦油粗酚酚醛泡沫塑料保溫性能、阻燃性能、吸水率、力學性能和耐熱穩定性等的影響，併通過傅立葉變換紅外光譜儀對閤成改性焦油粗酚酚醛樹脂進行瞭錶徵，通過生物顯微鏡、熱重分析儀對改性焦油粗酚酚醛泡沫塑料的微觀結構和耐熱穩定性進行錶徵。結果錶明，腰果酚的加入使改性焦油粗酚酚醛泡沫塑料的綜閤性能有較大改善，噹腰果酚佔混閤酚的質量分數為15%時，改性焦油粗酚酚醛泡沫塑料的綜閤性能最佳，吸水率為4.51%，壓縮彊度為0.31 MPa，彎麯彊度為0.55 MPa，導熱繫數為0.036 W/(m · K)，極限氧指數為35.2％。改性焦油粗酚酚醛泡沫塑料的保溫、阻燃性能和耐熱穩定性較好，泡孔緻密均勻。
위강저분철포말소료적성본，개선기성능，이초유조분、분분、다취갑철위원재료，요과분위개성제，합성가발성요과분개성초유조분분철수지，발포제비출요과분개성초유조분분철포말소료。연구료요과분용량대개성초유조분분철포말소료보온성능、조연성능、흡수솔、역학성능화내열은정성등적영향，병통과부립협변환홍외광보의대합성개성초유조분분철수지진행료표정，통과생물현미경、열중분석의대개성초유조분분철포말소료적미관결구화내열은정성진행표정。결과표명，요과분적가입사개성초유조분분철포말소료적종합성능유교대개선，당요과분점혼합분적질량분수위15%시，개성초유조분분철포말소료적종합성능최가，흡수솔위4.51%，압축강도위0.31 MPa，만곡강도위0.55 MPa，도열계수위0.036 W/(m · K)，겁한양지수위35.2％。개성초유조분분철포말소료적보온、조연성능화내열은정성교호，포공치밀균균。
In order to reduce the cost and improve the performance of phenolic foam plastics,the foamable tar crude phenol phenolic resin modified with cardanol was synthesized by using tar crude phenol,phenol,paraformaldehyde as materials,cardanol as modifier. Then tar crude phenol phenolic foam plastics modified with cardanol was prepared by foaming. The effects of the amount of cardanol on heat preservation,fire retardancy,water absorption,mechanical properties and thermal stabilities of the modified foam plastics were investigated,the modified tar crude phenol phenolic resin was characterized by fourier transform infrared spectrometer, the microscopic structure and thermal stabilities of the modified foam plastics were characterized by biological microscope and thermo gravimetric analyzer. The results show that the comprehensive properties of the modified foam plastics is improved greatly by cardanol,when the cardanol mass fraction in mixed phenols is 15%,the comprehensive properties of the modified foam plastics is the best,the water absorption of the modified foam plastics is 4.5%,the compressive strength is 0.31 MPa,the flexural strength is 0.55 MPa,the coefficient of thermal conductivity is 0.036 W/(m · K) and the limited oxygen index is 35.2%. The modified foam plastics also show good properties in thermal insulation and fire retardancy,and it also has a good thermal stabilities,the cells of the modified foam plastics is compact and symmetrical.
