竹浆纤维含量及纬密对棉/竹浆纤维交织物力学性能的影响

Mechanical properties of bamboo/cotton fabric as affected by bamboo fiber content and weft density

对15种不同规格的棉与棉/竹浆纤维交织物面料的拉伸断裂强度、断裂伸长率、撕裂强度、磨损牢度等力学性能进行测试比较,研究竹浆纤维含量及纬密对其力学性能的影响。结果表明:随着竹浆纤维含量增加,织物的经纬向拉伸断裂强力之和下降,纬向断裂伸长率上升,经向断裂伸长率先上升而后下降再上升;纬向撕裂强力先下降而后上升,经向撕裂强力变化不大;织物的质量减少率快速增加,织物磨损牢度变差,竹浆纤维含量为30%时,织物的磨损牢度最好;竹浆纤维含量达到70%时,交织物的断裂伸长率、撕裂强力、摩损牢度均为最低,在实际生产应用中应尽量避免选用。当经密保持不变,纬密增加时,织物的断裂强力增加,断裂伸长率逐渐增大,撕裂强力减小,耐磨性能提高。

The mechanical properties of fifteen bamboo /cotton fabrics with different specifications were tested,such as tensile strength at break,breaking elongation,tearing strength and fastness to abrasion,etc,and the effects of bamboo fiber content and weft density on the mechanical properties of the fabrics were researched.The results showed that with the increase of bamboo fiber content,the total tensile strength at break（warpwise ＋ weftwise） declined,the weftwise breaking elongation increased,and the warpwise breaking elongation firstly increased and then declined.Weftwise tearing strength firstly declined and then increased,and warpwise tearing strength exhibited little changed.Fabric weight loss accelerated,fastness to abrasion deteriorated.When bamboo fiber content was 30%,the fastness to abrasion was the best.When bamboo fiber content was up to 70%,the tensile strength at break,breaking elongation,tearing strength and fastness to abrasion became the worst,and this should be avoided in actual production.When warp density remained fixed,increasing weft density increased tensile strength at break,breaking elongation,and fastness to abrasion,but reduced tearing strength.