发现会影响您工作的新一代粘度粘度调节剂！

ENGINE OILS ARE CONSTANTLY EVOLVING, AND WE WANT YOU TO BE UP-TO-DATE WITH THE LATEST TECHNOLOGIES. A NEW GENERATION OF VISCOSITY MODIFIERS ENTERED THE MARKET AND THEY OFFER A WIDE RANGE OF FRESH OPPORTUNITIES. THIS BLOG EXPLAINS THE LATEST INNOVATION IN VISCOSITY MODIFIERS FROM THE BOTTOM UP!
发动机油正在不断发展，我们希望您能与最新技术与时俱进。新一代粘度调节剂上市并提供大量新机遇。该博客对粘度调节剂的最新创新进行了详细诠释！

Viscosity and viscosity index
粘度与粘度指数

Viscosity plays a vital role in the functionality of engine oil. But what is viscosity? Viscosity is the internal resistance to flowing of a fluid. To give a concrete example, spilling water or honey on the floor will lead to totally different outcomes. Water has low viscosity, meaning that it has low resistance to flowing. Honey on the other hand has higher viscosity, so it won’t flow as fast as water due to its higher internal resistance.
粘度对发动机油起着至关重要的作用。然而，什么是粘度？粘度就是车用液流动的内部阻力。举一个具体的例子，在地板上洒水或洒蜂蜜会导致完全不同的结果。水的粘度低，意味着对流动的阻力低。另一方面，蜂蜜的粘度较高，因此由于其更高的内部阻力，则不会像水一样快速流动。

Engine oils are available with different viscosities to serve all types of engines. The Society of Automotive Engineers, SAE in short, has developed a system to classify fluids into different viscosity categories: the SAE viscosity standard. The higher the number on the scale, the higher the fluid’s resistance to flowing.
发动机油有不同的粘度，可用于不同类型的发动机。简而言之，国际自动机工程师学会SAE已开发出可将车用液分为不同的粘度类别的系统：SAE粘度标准。刻度上的数字越高，车用液流动的阻力越高。

Viscosity is a static measurement, meaning that it is a denotation of the fluidity of a fluid at a given moment under given circumstances. The viscosity index adds the difference in viscosity over a change in temperature. Oil with a high viscosity index will retain its viscosity better than oil with a low viscosity index. When temperatures rise, oil will become less viscous.
粘度是一种静态测量，意味着它是在给定环境下给定时刻车用液流动性的指称意义。粘度指数添加了粘度在温度变化过程中的差异。具有高粘度指数机油的粘度保持比低粘度指数机油更好。温度升高，粘度变低。

There are two types of engine oils with completely different viscosity indexes. The first group is monograde oil. Given their low viscosity index, these oils can only be used for very specific applications where temperature changes are not part of the daily job. Monograde engine oil can be recognised by its name containing SAE followed by a matching viscosity grade, like Wolf’s GuardTech SAE 40
有两种粘度指数完全不同的发动机油。第一组是单级油。由于其低粘度指数，这些油只能用于日常工作环境温度变化不大的非常特定的应用。单级发动机油可通过含有SAE机器粘度等级的名称识别，比如Wolf’s GuardTech SAE 40

Multigrade engine oils, the second group, revolutionised the engine oil market with their higher viscosity indexes. These oils combine the viscosities of multiple monograde oils into one product, expanding the applicability over a wider temperature range. Multigrade oil’s viscosity can be recognised by the two SAE numbers separated with a W, an example of this is 0W20.
第二组多级发动机油。它以其较高的粘度指数彻底改变了发动机油市场。这些机油将多种单级油的粘度组合成一种产品，在更宽的温度范围内扩展了适用性。多级油的粘度可通过两个标有W的SAE编号识别，例如0W20。

Multigrade oils conquered the market with their improved properties, slowly driving monograde oils away. However, monograde oils still have a specific set of applications. Some solders or sealants of older vehicles require monograde mineral engine oils to stay in optimal condition, otherwise they become brittle.

多级油以其改良的属性占领市场，逐渐将单级油赶出了市场。但是，单级油依然具有一组特定的应用。一些老式车辆的焊料或密封剂要求单级矿物发动机油来保持最佳状态，否则会变脆。

Viscosity modifiers

粘度调节剂

The viscosity of a lubricant is determined by its base oils and additives, and one of those additives is the viscosity modifier. The secret to stabilising the oil’s viscosity is hidden in the viscosity modifier’s structure, which is capable of raising the engine oil’s viscosity index. This unique property is achieved on molecular level as the molecules contained inside viscosity modifiers expand and contract their protrusions when temperature changes. When temperature rises, the molecules start to expand and they cling together to stabilise the viscosity of the fluid. The molecules contract when the temperature decreases, enabling the other molecules to move more freely.

润滑油的粘度由其基础油和添加剂确定，其中一种添加剂就是粘度调节剂。稳定机油粘度的秘密就藏在可提高发动机油粘度指数的粘度调节剂结构中。这种独特的属性通过分子水平实现，因为粘度调节剂中包含的分子在温度变化时会膨胀和收缩前突。温度升高时，分子开始膨胀并粘在一起以稳定车用液的粘度。温度降低时，分子收缩，使其他分子更加自由地移动。

Innovation
创新

A new generation of viscosity modifiers entered the market, furthermore, they are already included in our Dexos1Tm Gen 2 Products! These advanced additives offer a hefty set of advantages compared to the previous generations of viscosity modifiers. They gain these advantages through their revolutionary shape.

新一代粘度调节剂进入了市场，且已含在我们的Dexos1Tm 二代产品中! 相比前几代粘度调节剂，这些先进的添加剂具有非常多的优势。它们通过革命性的形态获得了这些优势。

Thanks to its star shape the molecules can expand more efficient. The ends of the molecules force each other to expand into different directions, optimising the occupied space. The new generation viscosity modifier’s molecules contract more efficient, enabling the other molecules to flow more freely than ever. The combination of compact contraction and extensive expansion widens the operational temperature for engine oils.
由于其星形形状，分子可以更有效地膨胀。分子的末端彼此相互作用以从不同方向膨胀，优化占用的空间。新一代粘度调节剂的分子收缩更有效，使其他分子比以往更自由地流动。紧凑收缩和广延膨胀相结合，扩大了发动机油的工作温度范围。

This star structure offers additional shear stability as the increased amount of ends reduce impact of severe pressure. When a previous generation viscosity modifier succumbs to pressure their functionality is heavily impacted. The contraction and expansion capacity of the molecule is reduced and the engine oil will lose its viscosity.
这种星形结构提供了额外的剪切稳定性，因为增加的末端量减少了严重压力的影响。上一代粘度调节剂屈服于压力时，其功能就受到严重影响。分子的收缩和膨胀能力降低时，发动机油将失去粘度。

The new generation of viscosity modifiers stays fully operational under high pressure. When one of the ends breaks down, the others will rearrange to compensate the lost protrusion. This improved shear stability enables longer lubrication intervals and longer optimal lubrication under demanding conditions.
新一代粘度调节剂在高压下仍可充分运行。当其中一个端部发生故障时，其他端部将重新排列以补偿丢失的前突。这种改进的剪切稳定性使润滑在要求严苛条件下间隔和优化时间更长更长。

These two improvements enable blenders to research new opportunities. First of all, it is now possible to improve the fluidity of engine oils at low temperatures without losing engine protection at operational temperature. Customers living or working in extreme cold conditions won’t have to sacrifice protection at operational temperature to ensure a quick cold start anymore.
这两项改进使调和装置能够找寻新的机会。首先，现在可以在低温下改善发动机油的流动性，而不会在操作温度下损失发动机保护。在极端寒冷条件下生活或工作的客户不必在工作温度下牺牲保护来确保快速冷启动。

Secondly, the possible combinations between the new viscosity modifiers and the base oil groups open a new window of opportunities. A lower-grade synthetic base oils or group II mineral base oil in combination with an innovative viscosity modifier can now be used where previously expensive high-grade synthetic base oil was required.
其次，新的粘度调节剂和基础油组之间的可能组合打开了新的机会之窗。结合了粘度调节剂的较低等级的合成基础油或第二组矿物基础油现在可以用于以前需要昂贵的高级合成基础油的地方。

Summary

• Viscosity is the resistance to flowing.
• Viscosity index is the change in resistance to flowing over a change of temperature.
• Viscosity modifiers influence the viscosity index of oils.
• The new generation of viscosity modifiers can serve a wider temperature range and have higher shear resistance.
• The new generation of viscosity modifiers enable lower viscosity engine oils and expands the usability of all groups of base oils.

总结

• 粘度就是流动阻力。
• 粘度指数是流动在温度变化时的阻力变化。
• 粘度调节剂影响油的粘度指数。
• 新一代粘度调节剂可以提供更宽的温度范围，并具有更高的抗剪切性。
• 新一代粘度调节剂可激活低粘度发动机油，并扩大所有基础油的可用性。