合成橡胶工业
閤成橡膠工業
합성상효공업
CHINA SYNTHETIC RUBBER INDUSTRY
2010年
2期
154-157
,共4页
脲醛%改性%酶解木质素%微胶囊红磷%丁苯橡胶%阻燃性能%力学性能
脲醛%改性%酶解木質素%微膠囊紅燐%丁苯橡膠%阻燃性能%力學性能
뇨철%개성%매해목질소%미효낭홍린%정분상효%조연성능%역학성능
urea formaldehyde%modification%enzymatic hydrolysis lignin%micro encapsulated red phosphorus%styrene-butadiene rubber%fire-retardance%mechanical property
以脲醛改性酶解木质素配合自制的微胶囊红磷(MRP)制得高分子膨胀阻燃剂,用傅里叶变换红外光谱和差示扫描量热法对其进行了表征,并将其添加到丁苯橡胶(SBR)中,研究了SBR的阻燃性能和力学性能.结果表明,脲醛改性酶解木质素在280 ℃附近出现了1个较强的吸热峰;随着改性酶解木质素或MRP用量的增加,SBR的阻燃性能提高;当改性酶解木质素用量为60份、MRP用量为10份时,或当改性酶解木质素用量为40份、MRP为12份时,SBR的阻燃级别均可达到FV-0级;SBR/改性酶解木质素/MRP共混物的燃烧残渣表面生成了连续而致密的炭层,孔洞很少且细小.当改性酶解木质素用量为40份时,SBR硫化胶具有最佳的拉伸性能;当MRP用量为10份时,SBR硫化胶的综合性能较好.
以脲醛改性酶解木質素配閤自製的微膠囊紅燐(MRP)製得高分子膨脹阻燃劑,用傅裏葉變換紅外光譜和差示掃描量熱法對其進行瞭錶徵,併將其添加到丁苯橡膠(SBR)中,研究瞭SBR的阻燃性能和力學性能.結果錶明,脲醛改性酶解木質素在280 ℃附近齣現瞭1箇較彊的吸熱峰;隨著改性酶解木質素或MRP用量的增加,SBR的阻燃性能提高;噹改性酶解木質素用量為60份、MRP用量為10份時,或噹改性酶解木質素用量為40份、MRP為12份時,SBR的阻燃級彆均可達到FV-0級;SBR/改性酶解木質素/MRP共混物的燃燒殘渣錶麵生成瞭連續而緻密的炭層,孔洞很少且細小.噹改性酶解木質素用量為40份時,SBR硫化膠具有最佳的拉伸性能;噹MRP用量為10份時,SBR硫化膠的綜閤性能較好.
이뇨철개성매해목질소배합자제적미효낭홍린(MRP)제득고분자팽창조연제,용부리협변환홍외광보화차시소묘량열법대기진행료표정,병장기첨가도정분상효(SBR)중,연구료SBR적조연성능화역학성능.결과표명,뇨철개성매해목질소재280 ℃부근출현료1개교강적흡열봉;수착개성매해목질소혹MRP용량적증가,SBR적조연성능제고;당개성매해목질소용량위60빈、MRP용량위10빈시,혹당개성매해목질소용량위40빈、MRP위12빈시,SBR적조연급별균가체도FV-0급;SBR/개성매해목질소/MRP공혼물적연소잔사표면생성료련속이치밀적탄층,공동흔소차세소.당개성매해목질소용량위40빈시,SBR류화효구유최가적랍신성능;당MRP용량위10빈시,SBR류화효적종합성능교호.
The composite of urea formaldehyde modified enzymatic hydrolysis (EH) lignin and micro encapsulated red phosphorus (MRP) was prepared as a new kind of expansion fire-retardant for polymer. The structures and heat performance of EH lignin modified were characterized by Fourier transform infrared spectroscopy and differential scanning calorimetry. The fire-retardance and mechanical properties of styrene-butadiene rubber(SBR) with the modified EH lignin and MRP were investigated. The results showed that there was a strong decalescence at 280 ℃ during the heating process. The flame-retardance were improved when the amount of the modified EH lignin or MRP was increased. The vertical ignition grade of modified SBR all reached FV-0 when the system had 60 phr modified EH lignin and 10 phr MRP, or 40 phr modified EH lignin and 12 phr MRP. The char residue structure of SBR/lignin/MRP composites were continuous and compact, with small holes on their surfaces. In addition, the tensile strength of SBR/lignin/MRP composites were the best when the system had 40 phr modified EH lignin. The integration properties of SBR were better when the system had 10 phr MRP.
