TPU 德國科思創(chuàng)（拜耳）DP372

TPU 德國科思創(chuàng)（拜耳）DP372，價格合理,誠信經(jīng)營，可全國供貨（廣東省內(nèi)免費(fèi)送上門）。支持物流，快遞和貨運(yùn);支持現(xiàn)金，銀行轉(zhuǎn)賬交易。

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TPU 德國科思創(chuàng)（拜耳）DP372 圖片：

TPU 德國科思創(chuàng)（拜耳）其他型號報價

TPU 德國科思創(chuàng)（拜耳）DP372

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 perbance

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 perbance

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 compleby 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 perbance

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 perbance

TPU has a very good low temperature perbance, 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 perbance

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 德國科思創(chuàng)（拜耳）DP372

目前市場上比較流行的聚氨酯保溫管發(fā)泡工藝主要有兩種，一種是"一步法"和"管中管"，一步法生產(chǎn)工藝要優(yōu)于管中管。一步法成型工藝不同于管中管成型工藝，它是采用一次包覆的成型方式，把防腐層、絕熱層和PE管，同時包覆在鋼管外表面上，從而形成管線的保溫防腐層。生產(chǎn)效率高，成本低、節(jié)約能源，無污染環(huán)境等突出優(yōu)點。用一步法成型建成的鋼管道絕熱防腐生產(chǎn)線，自動化程度高，絕熱防腐層的質(zhì)量完全符合國家標(biāo)準(zhǔn)。
      聚氨酯保溫鋼管制作的簡易工藝流程：
      第一步是對防腐鋼管進(jìn)行檢驗，使之符合制作保溫鋼管的條件，綜合各種條件對鋼管進(jìn)行檢驗
      第二步是除去鋼管上的繡，利用某些特殊原料清楚鋼管表面的銹跡，使鋼管沒有被腐蝕的情況
      第三步是穿管成型，將除銹防腐后的鋼管套在聚乙烯套管內(nèi)；第四步是封頭修補(bǔ)，中間注入聚氨酯泡沫，使之充分填滿鋼管與聚乙烯套管之間的空隙，使之成為一體
      第四步是成品檢驗，對制作完成的保溫鋼管進(jìn)行成品的檢驗，符合規(guī)格的產(chǎn)品進(jìn)行出售，不符合的產(chǎn)品進(jìn)行重新的整修和改進(jìn)
產(chǎn)品簡介：
      經(jīng)過多年使用實踐中和有關(guān)檢測中心檢測使用壽命可達(dá)三十年以上。與當(dāng)時世界各國普遍采用的“兩步法”相比，具有可連續(xù)生產(chǎn)、自動化程度高、無污染、投資少、低能耗、操作簡單、質(zhì)量穩(wěn)定等優(yōu)點，主要技術(shù)性能指標(biāo)均達(dá)到標(biāo)準(zhǔn)要求，實現(xiàn)了技術(shù)上的先進(jìn)性和生產(chǎn)上的可靠性。
      采用手提式擠出機(jī)，用于大型管件和異性焊口的焊接。該工藝預(yù)先將V型焊口部分熔化，隨即使擠出的已熔化的聚乙烯在焊靴的壓力下緊緊焊接在焊口上。該工藝?yán)镁垡蚁崛墼?，將需要對焊的不同角度的管材端口緊貼在電熱板上預(yù)熱，達(dá)到工藝溫度時對管材施加軸向壓力，使已熔化的焊口對焊。該工藝采用世界先進(jìn)的環(huán)戊烷發(fā)泡設(shè)備對管材進(jìn)行發(fā)泡加工。

如需了解更多關(guān)于TPU 德國科思創(chuàng)（拜耳）DP372的詳細(xì)信息，歡迎致電聯(lián)系。

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TPU 德國科思創(chuàng)（拜耳）DP372 塑料當(dāng)日更新：

05月13日訊 據(jù)界面新聞報道，摩拜單車在4月推出的新款摩拜單車采用了陶氏聚氨酯材料——聚氨酯實心輪，相比之前的橡膠實心輪，不僅重量減輕20%，減震性能和耐用性也得到大幅提升。受此影響，A股市場的聚氨酯概念股或?qū)⒃俅问艿疥P(guān)注，相關(guān)個股如煙臺萬華、滄州大化(600230,股吧)、北化股份(002246,股吧)、山西三維(000755,股吧)、云維股份(600725,股吧)、天利高新(600339,股吧)、華魯恒升(600426,股吧)、江山化工(002061,股吧)等。此前，受共享單車投放量大增，上海鳳凰、中路股份(600818,股吧)等共享單車概念股大漲。