Borealis PP MB238U PP 塑胶粒
Borealis PP MB238U PP 塑胶粒什么是无规共聚物PP：
(1) according to the target, list the components all performance requirements ( and not the function of information ), and a possible quantitative. For example:
In the additional continuation load to the maximum deformation;
The use and transportation process of the stress variety and size; whether the long time stress, dynamic or static stress;
The highest working temperature;
In task temperature promised size change;
The dimensions of the parts to public service;
The components of the use of functional requirements;
The component can request the coloring, bonding, such as electroplating;
⑧request storage period long, whether in outdoor use;
Have no flammability requirements, etc。
Borealis PP MB238U PP 塑胶粒Borealis PP MB238U PP 塑胶粒 A plastic material general order：Plastic or like metal complex, breed, although already industrialized primary categories as long as more than 50per class, but also has many levels. Such as nylon plastics, including nylon 3, nylon 4, nylon 6, nylon 46, nylon 66, nylon 7, nylon 8, nylon 9, nylon 610, nylon 1010, nylon 11, nylon 12, nylon 13, nylon 612, nylon9T, nylon 13, nylon MC, nylon MXD6 nylon and other types of. Each species can also be modified, for example in the filler or strengthening materials and other auxiliary materials, or after a blend made \" alloy"; or after processing technology such as oriented, crystalline, foaming and so to obtain a new function, in order to satisfy the use requirements。
Borealis PP MB238U PP 塑胶粒Borealis PP MB238U PP 塑胶粒 PP The use of the environment：The so-called environment refers to the material or products when in use to the ambient temperature, humidity, medium, especially temperature and humidity conditions. According to the different uses, temperature conditions by polar low temperature to the equator or desert hot temperatures, or space environment of high temperature, even in the fire at high temperature; humidity condition in the water or from long-term intermittent immersion and outdoor rain winter dry state (30%RH ); some products are at a special for use in a gas or liquid or solution for contact chemical occasions; in addition, natural exposure conditions in addition to wind, rain, fog and other effects are affected by sunlight exposure. Therefore, must take into account the stand-by plastic on the use of the ability to adapt to the environment。
Borealis PP MB238U PP 塑胶粒在国内销售广泛Borealis PP MB238U PP 塑胶粒部分库存型号：Borealis PP HC205TF PP
Borealis PP HC205TF PP
Borealis PP HC206TF PP
Borealis PP HC207TF PP
Borealis PP HC207TF-02 PP
Borealis PP HC600TF PP
Borealis PP HD003WG PP
Borealis PP HD120MO PP
Borealis PP HD204CF PP
Borealis PP HD214CF PP
Borealis PP HD234CF PP
Borealis PP HD244CF PP
Borealis PP HD601CF PP
Borealis PP HD621CF PP
Borealis PP HD822CF PP
Borealis PP HE125MO PP
Borealis PP HE350FB PP
Borealis PP HE351FB PP
Borealis PP HE365FB PP
Borealis PP HE445FB PP
Borealis PP HE465FB PP
Borealis PP HE4872 PP
Borealis PP HF005T PP
Borealis PP HF007SA PP
Borealis PP HF136MO PP
Borealis PP HF345FB PP
Borealis PP HF350FB PP
Borealis PP HF420FB PP
Borealis PP HF445FB PP
Borealis PP HF700S PP
Borealis PP HF700SA PP
Borealis PP HG245FB PP
Borealis PP HG246FB PP
企业简介：
平川（国际）塑胶贸易有限公司可提供COA,SGS,FDA等认证资料和加工参数-
本公司主营产品：
一：泛用料：ABS、PP。
二：工程料：PA6、PA66、PA11、PA12、PA612、TPV、TPE、TPU、TPE、LCP、PPS、PPO、PBT、PC、PC/ABS、PET、PMMA、POM等。
企业文化：“用劳动创造财富”；企业宗旨：“诚信经营，顾客至上”。
提 供：‘东莞市常平平川塑胶贸易行’隶属‘平川（国际）塑胶贸易有限公司’下属营业部；
联 系 人：邓青云（销售部经理）
联系电话：0769-89979215 13751221413
Q Q： 2352679910
邮 箱：ping-chuan@hotmail.com
公司网址：www.pcplas.com.cn
Borealis PP MB238U PP 塑胶粒Borealis PP MB238U PP 塑胶粒产品性能特点：产品描述：Borealis PP MB238U PP, 聚丙烯 PP，特点：热稳定、良好的尺寸稳定性，适用于汽车、电子应用。
Borealis PP MB238U PP 塑胶粒PP（聚丙烯）塑料use of objects：
Application of the object refers to the use of plastic products country, regional, national and the detailed use of the limited. For example. National differences, the specification is not. As of the United States of electrical components used plastic, to ensure that the thermal and electrical safety, requirements must meet UL specifications. On the other, colors and patterns and shape requirements will be for the country, ethnic habits and preferences and differences, should choose appropriate color and appearance. The use of differences, such as children, elderly, women supplies also have different requirements in industrial use also to consider use of objects, and the choice of different materials.
Borealis PP MB238U PP 塑胶粒Borealis PP MB238U PP 塑胶粒 Selection should pay attention to the following issues：1.some plastic stress cracking tendency, selection and design to minimize stress, product design to avoid stress concentration, or after appropriate treatment, and to strictly control the process.
2.some plastic creep and shrinkage or deformation tendency, selection and design should be pay attention to.
The various plastic - must use intensity range and allowed to contact the medium and can withstand the pressure and the speed limit, selection and should be considered when designing。
3.must choose plastic performance to a more comprehensive understanding, according to the use condition to consider the formula, process and product design.
The plastics are generally low thermal conductivity, the selection and design to fully pay attention.
4.plastic linear expansion coefficient than the metal in general, some easy to absorb water, so the larger size variation, selection and design to consider the appropriate clearance and tolerances.
相关问答
U
U-235和U-238是同一种元素铀的两种同位素，化学性能完全一样，但是物理性能却相差很大。铀有三种同位素，即铀-234、铀-235和铀-238。其中的铀-234不会发生核裂变，铀-238在通常情况下也不会发生核裂变，而铀-235这种同位素原子能够轻易发生核裂变，或者说，做核燃料的实际上是铀-235。但是，从矿山里开采出来的铀里面，铀-235的含量却又是很低，仅占0.66%，绝大部分是铀-238，它占了99.2%。这就相当于我们的煤饼厂或炼油厂，生产出的煤饼里大部分是泥沙，当然也就没法燃烧。根据研究结果，在铀核燃料中铀-235的含量要达到3%以上才能燃烧。因此，开采出来的铀，并不同于开采出来的煤块直接可以用做燃料，它需要经过提纯、浓缩的手续，把铀-235的含量比例提高之后，方能用做燃料。 纯度为3%的铀235为核电站发电用低浓缩铀，铀235纯度大于80%的铀为高浓缩铀，其中纯度大于90%的称为武器级高浓缩铀，主要用于制造核武器。
