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TPU 德国科思创（拜耳）95A，价格合理,诚信经营，可全国供货（广东省内免费送上门）。支持物流，快递和货运;支持现金，银行转账交易。

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TPU 德国科思创（拜耳）95A 图片：

TPU 德国科思创（拜耳）其他型号报价

TPU 德国科思创（拜耳）95A

Wear resistance

When the material in the course of the use of friction, scraping, grinding and other mechanical effects, will cause its surface gradually wear and tear, so the choice of material wear is very important. TPU plastic materials, excellent wear resistance, wear more than five times the natural rubber, wear-resistant products is one of the preferred materials.

2, tensile properties

Tensile strength up to 70MPa, elongation at break up to 1000%.

3, tearing performance

The tear strength is the ability of the material to resist the tearing effect; in general, the TPU has a high tear resistance, tear strength and some commonly used Rubber and plastic comparison is very excellent.

4, inflection performance

Many of the plastic materials in the repeated periodic stress is easy to produce fracture, TPU products in different environments can maintain excellent resistance to fracture characteristics, one of the best choice for polymer materials.

5, hydrolysis resistance

TPU in the turbidity of water resistance is good, 1 to 2 years will not be significant hydrolysis, especially in the polyether series better. Polyester series in 50 ℃ water soak for half a year or 70 ℃ soak 3 weeks or 100 ℃ soak 3 to 4 days, will be completely decomposed, which is suitable for environmental protection as TPU one of the reasons, the need for regular contact with water products, It is recommended to use polyether series.

6, anti-high temperature and antioxidant properties

General plastic materials in the long-term environment above 70 ℃ easy oxidation, TPU antioxidant capacity is good; generally TPU temperature resistance up to 120 ℃.

7, oil and drug resistance performance

TPU is a highly polar polymer material, and non-polar mineral oil affinity is very small, in the fuel oil (such as kerosene, gasoline) and mechanical oil (such as hydraulic oil, oil, lubricants, etc.) in almost TPU film and sheet for the oil volume change is very small, the tensile strength even higher than the original value; need to pay attention to the Mineral oil containing a small amount of water, the film will have different degrees of negative physical properties.

8, low temperature performance

TPU has a very good low temperature performance, usually up to -50 ℃, can replace the general PVC due to low temperature embrittlement and can not be applied in various fields, especially suitable for use in the cold type of related products.

9, air tightness

TPU is very easy to use high frequency or hot pressure to weld, so widely used in inflatable products. Gas coefficient refers to a certain temperature and pressure, the gas through the sample specified area rate, the same material on the different gas transmission rate is sometimes very different. In general, the polyester series of products is better than the polyether series of air tightness.

10, biomedical performance

TPU has excellent biocompatibility, non-toxic, no allergic reactivity, no local irritation, no heat source, so widely used in medical, health and other related products and sports, protective equipment.

TPU 德国科思创（拜耳）95A

目前市场上比较流行的聚氨酯保温管发泡工艺主要有两种，一种是"一步法"和"管中管"，一步法生产工艺要优于管中管。一步法成型工艺不同于管中管成型工艺，它是采用一次包覆的成型方式，把防腐层、绝热层和PE管，同时包覆在钢管外表面上，从而形成管线的保温防腐层。生产效率高，成本低、节约能源，无污染环境等突出优点。用一步法成型建成的钢管道绝热防腐生产线，自动化程度高，绝热防腐层的质量完全符合国家标准。
      聚氨酯保温钢管制作的简易工艺流程：
      第一步是对防腐钢管进行检验，使之符合制作保温钢管的条件，综合各种条件对钢管进行检验
      第二步是除去钢管上的绣，利用某些特殊原料清楚钢管表面的锈迹，使钢管没有被腐蚀的情况
      第三步是穿管成型，将除锈防腐后的钢管套在聚乙烯套管内；第四步是封头修补，中间注入聚氨酯泡沫，使之充分填满钢管与聚乙烯套管之间的空隙，使之成为一体
      第四步是成品检验，对制作完成的保温钢管进行成品的检验，符合规格的产品进行出售，不符合的产品进行重新的整修和改进
产品简介：
      经过多年使用实践中和有关检测中心检测使用寿命可达三十年以上。与当时世界各国普遍采用的“两步法”相比，具有可连续生产、自动化程度高、无污染、投资少、低能耗、操作简单、质量稳定等优点，主要技术性能指标均达到标准要求，实现了技术上的先进性和生产上的可靠性。
      采用手提式挤出机，用于大型管件和异性焊口的焊接。该工艺预先将V型焊口部分熔化，随即使挤出的已熔化的聚乙烯在焊靴的压力下紧紧焊接在焊口上。该工艺利用聚乙烯热熔原理，将需要对焊的不同角度的管材端口紧贴在电热板上预热，达到工艺温度时对管材施加轴向压力，使已熔化的焊口对焊。该工艺采用世界先进的环戊烷发泡设备对管材进行发泡加工。

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TPU 德国科思创（拜耳）95A 塑料当日更新：

05月13日讯 据界面新闻报道，摩拜单车在4月推出的新款摩拜单车采用了陶氏聚氨酯材料——聚氨酯实心轮，相比之前的橡胶实心轮，不仅重量减轻20%，减震性能和耐用性也得到大幅提升。受此影响，A股市场的聚氨酯概念股或将再次受到关注，相关个股如烟台万华、沧州大化(600230,股吧)、北化股份(002246,股吧)、山西三维(000755,股吧)、云维股份(600725,股吧)、天利高新(600339,股吧)、华鲁恒升(600426,股吧)、江山化工(002061,股吧)等。此前，受共享单车投放量大增，上海凤凰、中路股份(600818,股吧)等共享单车概念股大涨。