Used for testing indexes of polyurethane monofilament , such as breaking tenacity , elongation at break , load at specified elongation , relaxation of stress , plastic deformation , etc 用于测定氨纶丝断裂强度、断裂伸长率、定伸长负荷、应力松驰、塑性变形等性能指标。
Results of study show that inception voltage of electrical tree , breakdown voltage , environmental stress cracking , tensile strength and elongation at break of low density polyethylene are improved after grafting 研究结果表明：接枝聚硅氧烷后，改性的低密度聚乙烯的树枝引发示性电压、击穿场强、耐环境应力开裂性、拉伸强度及断裂伸长率都得到提高。
The newly generated model was then used in the prediction of the tensile strength and elongation at break of the plastics during a spontaneous aging process and the result indicated the model was available and effective for the research on the structural properties of plastics 塑料制品的力学老化性能与其寿命密切相关，模型中对塑料自然老化拉伸强度，断裂伸长率进行预测，对塑料结构性能的研究有着重要的现实意义。
The tensile strength of m / zinc stearate and m / barium stearate improved 97 % and 104 % compared to grt respectively , the elongation at break of triethylene tetramine and tetraethylene pentamine improved 115 % and 152 % compared to grt respectively M硬酯酸锌、 m硬酯酸钡的拉伸强度分别为6 . 8mpa 、 7 . 05mpa ，比grt分别提高了97 、 104 。三乙烯四胺和四乙烯五胺的扯断伸长率分别为290和340 ，比grt分别提高了115和152 。
Making up nanopaint mixed with nano - silica , the improvement of its properties has been tested . the mechanic property of membrane formed increased , such as tensile strength , elongation at break , surface rigidity ; the scrubbing resistance and stain resistance of the paints has been improved . but it ' s the limitation that ideal results of properties of waterproofing and uv - screen have n ' t been gotten 实验结果表明，涂膜的力学性能得到提高，如拉伸强度、断裂延伸率和表面硬度；涂料的耐洗刷性能和耐沾污性能有改善，但防水性能和抗紫外性能无明显改善，接触角和吸水率数据无规律可循。
Abstract : the property of silk fabric grafted ( cross - linked ) with hydroxypropyl methacrylate and protein at different rate of weigh gain , by measuring strength and elongation at break , dyeability , elastic , moisturecontent , whiteness , permeability of gas , ir and x - ray diffraction diagrams was studied 文摘:通过对织物的拉伸特性、吸湿性、弹性、染色性、白度、透气性、红外和x射线衍射的研究，探讨了在不同增重率条件下甲基丙烯酸羟丙酯在丝蛋白存在下与真丝绸接枝交联后的结构及其特性的影响。
A . common test methods for insulating and sheathing materials of electric cables - part 4 : methods specific to polyethylene and polypropylene compounds - section 2 : elongation at break after pre - conditioning - wrapping test after pre - conditioning - wrapping test after thermal ageing in air - measurement of mass increase - long - term stability test appendix a - test method for copper - catalysed oxidative degradation appendix b 电缆绝缘和铠装材料的通用试验方法.第4部分:聚乙烯与聚丙烯复合物专用方法.第2节:预处理后的断裂伸长率.预处理后的缠绕试验.空气中热老化后的缠绕试验.增加量的测量.长期稳定性试验
While in hdpe / mmt composites , mpst of the mmt aggregates are not intercalated by pe chains . moreover , the composite of hdpe - g - ydh151 ( 8phr ) / 2phrmmt formed a good crosslinking net , the mmt act as crosslinking points . consequently , the mechanical properties of this composite is good : the elongation at break impoved 29 % and tensile modulus increased 32 % Xrd 、 sem用一1tem结果表明ydh151提高了mmt在hdpe中的剥离和分散，并且hdpe一ydh151 ( sphr ) / 2pllrmmt复合材料形成了较完善的交联网， mmt成为了类交联点的作用;因此它的力学性能达到较高的值，断裂伸长率增加了29 % ，模量提高了32 % ;而再增加mmt的量，材料的性能有所下降。
Insulating and sheathing materials of electric and optical cables - common test methods - methods specific to polyethylene and polypropylene compounds - tensile strength and elongation at break after conditioning at elevated temperature - wrapping test after conditioning at elevated temperature - wrapping test after thermal ageing in air - measurement of mass increase - long - term stability test - test method for copper - catalyzed oxidative degradation 电缆和光缆的绝缘和护套材料.通用试验方法.聚乙烯和聚丙烯化合物专用方法.高温处理后抗拉强度和断裂伸长度.高温处理后的卷绕试验.在空气中热老化后的卷绕试验.质量增加的测量.长期稳定性试验.催化铜氧化降解的试验方法
Common test methods for insulating and sheathing materials of electric cables . part 4 : methods specific to polyethylene and polypropylene compounds . section two : elongation at break after pre - conditioning - wrapping test after pre - conditioning - wrapping test after thermal ageing in air measurement of mass increase - long - term stability test appendix a . test method for copper catalysed oxidative degradation appendix b 电缆绝缘和护套材料通用试验方法第4部分:聚乙烯和聚丙烯混合料专用试验方法第2节:预处理后断裂伸长率试验-预处理后卷绕试验-空气热老化后的卷绕试验-测定质量的增加附录a :长期热稳定性试验附录b :铜催化氧化降解试验方法
