CAJ | 학술논문

试验分析了黄糊精/秸秆纤维复合材料在不同相对湿度下的吸湿率,并对复合材料的吸湿率数据进行一元非线性回归拟合得ω=α+bt~c,吸湿速率v=dw/dt=bct~(c-1),建立了吸湿率和吸湿速率的数学模型,分析了每种秸秆纤维复合材料在相同的相对湿度下的吸湿率曲线.在100 g秸秆纤维、40 g水、20 g黄糊精、热压温度为170℃、热压压力为4.2MPa、热压时间为30min和100 g秸秆纤维、40 g水、10 g黄糊精、热压温度为170℃、热压压力为9.8 MPa、热压时间为20 min两种条件下制备了的两种黄糊精/秸秆纤维复合材料,试验得出上述两种复合材料吸湿率较小,表明两种秸秆纤维复合材料耐水性好.在黄糊精/秸秆纤维复合材料制备中,应重点注意热压温度因素,它对复合材料的耐水性影响较大.
시험분석료황호정/갈간섬유복합재료재불동상대습도하적흡습솔,병대복합재료적흡습솔수거진행일원비선성회귀의합득ω=α+bt~c,흡습속솔v=dw/dt=bct~(c-1),건립료흡습솔화흡습속솔적수학모형,분석료매충갈간섬유복합재료재상동적상대습도하적흡습솔곡선.재100 g갈간섬유、40 g수、20 g황호정、열압온도위170℃、열압압력위4.2MPa、열압시간위30min화100 g갈간섬유、40 g수、10 g황호정、열압온도위170℃、열압압력위9.8 MPa、열압시간위20 min량충조건하제비료적량충황호정/갈간섬유복합재료,시험득출상술량충복합재료흡습솔교소,표명량충갈간섬유복합재료내수성호.재황호정/갈간섬유복합재료제비중,응중점주의열압온도인소,타대복합재료적내수성영향교대.
The hygroscopicity of the yellow dextrin/straw fiber composites at different relative humidity conditions was researched. The model of hygroscopicity and its variational rate was set up. The favorable water resisting property for the composites was obtained, on the two following groups conditions: the straw fibers of 100 g, the water of 40 g, the yellow dextrin of 20 g, the hot pressing temperature of 170℃, the hot pressing pressure of 4.2 MPa, the hot pressing time of 30 min; and the straw fibers of 100 g, the water of 40 g, the yellow dextrin of 10 g, the hot pressing temperature of 170℃, the hot pressing pressure of 9.8 MPa, the hot pressing time of 20 min respectively. The hot-pressing temperatures of two groups were both higher than in common. So the preparation process should focus attention on hot-pressing temperature factors. The research can provide reference for applying of the moisture absorption properties of the yellow dextrin/ straw fibers composites.