CAJ | 학술논문

为了开发环保型芦苇纤维板，采用蔗糖代替甲醛与尿素在酸性条件下合成了环保型蔗糖/尿素树脂，然后将该环保型树脂与芦苇纤维复合制备了芦苇纤维板，考察了蔗糖/尿素物质的量之比、反应温度、反应时间、催化剂种类及催化剂用量对合成的树脂及制备的芦苇纤维板性能的影响。结果表明，当蔗糖、尿素与催化剂浓盐酸的物质的量之比为5∶1∶0.5、反应时间为3 h、反应温度为75℃时，合成的树脂黏度为1440 mPa · s，固含量为76.25%，制备的芦苇纤维板的性能达到最好，其静曲强度、弹性模量、含水率及吸水厚度膨胀率分别为30.08 MPa，7.43 GPa，11.23%，21.36%，达到国家标准GB/T 11718-2009的要求。
위료개발배보형호위섬유판，채용자당대체갑철여뇨소재산성조건하합성료배보형자당/뇨소수지，연후장해배보형수지여호위섬유복합제비료호위섬유판，고찰료자당/뇨소물질적량지비、반응온도、반응시간、최화제충류급최화제용량대합성적수지급제비적호위섬유판성능적영향。결과표명，당자당、뇨소여최화제농염산적물질적량지비위5∶1∶0.5、반응시간위3 h、반응온도위75℃시，합성적수지점도위1440 mPa · s，고함량위76.25%，제비적호위섬유판적성능체도최호，기정곡강도、탄성모량、함수솔급흡수후도팽창솔분별위30.08 MPa，7.43 GPa，11.23%，21.36%，체도국가표준GB/T 11718-2009적요구。
To develop reed fiber board,an environmentally friendly resin was synthesized by using sucrose instead of formaldehyde with urea under acidic conditions. And then reed fiber boards were prepared with blending the resin with reed fibers. Effects of molar ratio of sucrose and urea,reaction temperature,reaction time,catalyst type and content on properties of the resin and the reed fiber boards were analyzed. The results show that when molar ratio of sucrose,urea and concentrated hydrochloric acid being selected as catalyst is 5∶1∶0.5,reaction time is 3 h,reaction temperature is 75℃,the viscosity and solid content of the resin are 1 440 mPa · s and 76.25%respectively,the properties of the prepared reed fiberboard are best and its static bending strength, elastic modulus,moisture rate and thickness swelling rate of water absorbing are 30.08 MPa,7.43 GPa,11.23% and 21.36%respectively,meet the requirements of national standards GB/T 11718-2009.