CAJ | 학술논문

采用Mg(OH)_2阻燃剂,在阻燃剂质量浓度为300 g/L,黏合剂体积分数为20%,浸渍时间为20 min的工艺条件下对大麻纤维针刺毡进行阻燃整理,用热重分析(TG)法和差热分析(DTA)法对MS(OH)_2阻燃整理前后大麻纤维针刺毡热性能进行对比分析.结果表明:经Mg(OH)_2阻燃整理后的大麻纤维针刺毡初始热解阶段为0～330℃,主要热解阶段在330～400℃,残渣热解阶段在400-600℃;且热失重和最大热失重速率明显降低,剩炭率增加,热解起始温度升高;第1个放热峰值降低了50%,无第2个放热峰出现,说明阻燃剂Mg(OH)_2对大麻纤维针刺毡有较好的阻燃效果.
채용Mg(OH)_2조연제,재조연제질량농도위300 g/L,점합제체적분수위20%,침지시간위20 min적공예조건하대대마섬유침자전진행조연정리,용열중분석(TG)법화차열분석(DTA)법대MS(OH)_2조연정리전후대마섬유침자전열성능진행대비분석.결과표명:경Mg(OH)_2조연정리후적대마섬유침자전초시열해계단위0～330℃,주요열해계단재330～400℃,잔사열해계단재400-600℃;차열실중화최대열실중속솔명현강저,잉탄솔증가,열해기시온도승고;제1개방열봉치강저료50%,무제2개방열봉출현,설명조연제Mg(OH)_2대대마섬유침자전유교호적조연효과.
The flame-retardant finishing of the hemp needle-punched felt was performed with MS(OH)_2(mass concentration 300 g/L)and adhesive(volume concentration 20%)with imprenating time 20 min.The thermal properties the hemp needle-punched felt before and after flame retardant finishing were analyzed by using thermo gravimetry(TG)and differential thermal analysis(DTA).The results revealed that the hemp needle-punched felt treated by Mg(OH)2 has the initial pyrolysis stage 0～330℃,the main pyrolysis stage 330～400℃,and the residual pyrolysis stage 400～600℃.The speed of hot weightlose and maximum hot weightlose reduces obviously,and the rate of remains of the carbon increases and the initial temperature of thermal decomposition increases.The first exothermic peak value reduced 50%,no second exothermie peak is observed,indicating that the MS(OH)_2 has impaled good flame-retardant effect to the hemp needle-punched felt.