1. Oxygen: oxygen in vulcanized rubber chain reaction occurs through the molecular structure of inorganic acid, so that the chain of molecular structure is broken or too much chemical cross-linking, resulting in changes in the properties of vulcanized rubber. Chemical action is one of the main reasons for embrittlement of vulcanized rubber.

2、水：水的效率有兩個等級。硫化橡膠在潮濕和寒冷的氣體雨中或浸泡在水中，很容易被破壞，它是由于硫化橡膠在水中溶解的化學物質(zhì)和冷水酯基等成分被水浸融化。由水解、消化或吸收引起的。尤其在氣泡滲透和空氣暴露的置換作用下，硫化橡膠的破壞速度加快。但在一定情況下，水不會對硫化橡膠造成損傷，甚有減緩硫化橡膠脆化的作用，效率元素還具有有機化學物質(zhì)、價態(tài)金屬離子、源能輻射源、電流和微生物。

2. Water: there are two levels of water efficiency. Vulcanized rubber is easy to be destroyed in wet and cold air rain or immersed in water, because the chemical substances and cold water ester groups dissolved in water of vulcanized rubber are dissolved in water. Caused by hydrolysis, digestion, or absorption. Especially under the replacement action of bubble penetration and air exposure, the destruction speed of vulcanized rubber is accelerated. However, under certain conditions, water will not cause damage to vulcanized rubber, and even slow down the embrittlement of vulcanized rubber. The efficiency elements also include organic chemicals, valence metal ions, radiation sources, electric current and microorganisms.

3、活性氧物種，活性氧物種的有機化學專一性比氧氣高得多，破壞性更大，它同樣可以打破分子結構鏈，但活性氧物種對硫化橡膠的影響是不同的，隨著硫化橡膠的變形。硫化橡膠(主要為不飽和脂肪硫化橡膠)變形時，存在一種具有地應力作用方向的垂直裂紋，稱為“活性氧裂紋”。硫化橡膠變形時，只有表層轉(zhuǎn)化為不開裂的空氣氧化膜。

3. The organic chemical specificity of reactive oxygen species is much higher than that of oxygen, and it is more destructive. It can also break the molecular structure chain, but the effect of reactive oxygen species on vulcanized rubber is different, with the deformation of vulcanized rubber. When vulcanized rubber (mainly unsaturated fat vulcanized rubber) is deformed, there is a vertical crack with the action direction of in-situ stress, which is called "active oxygen crack". When the vulcanized rubber is deformed, only the surface layer is transformed into non cracking air oxide film.

4、加熱：溫度升高可引起硫化橡膠的催化裂化或熱化學交聯(lián)。但熱的基本作用仍然是主動作用。它是一種脆化狀態(tài)，熱氧脆化是一種常見的現(xiàn)象，它增加了氧的擴散速率和活性氧化還原反應，進而加快了硫化橡膠的氧化還原反應速率。

4. Heating: temperature rise can cause catalytic cracking or thermochemical crosslinking of vulcanized rubber. But the basic function of heat is still active. It is a embrittlement state, and hot oxygen embrittlement is a common phenomenon. It increases the diffusion rate of oxygen and active redox reaction, and then accelerates the redox reaction rate of vulcanized rubber.

5、機械設備：地應力的整個過程連續(xù)傳送帶之間的摩擦和緩沖的常數(shù)地應力下輥機械設備將打破硫化橡膠的分子結構鏈，將成礦酸組，導致空氣氧化的連鎖反應,生成有機化學的整個過程。機械設備的整個過程打破了分子結構鏈和機械設備的活性空氣氧化。按照現(xiàn)在的標準，誰能占上風？另外，在應力作用下很容易引起ros開裂。

5. Mechanical equipment: the whole process of in-situ stress is continuous, and the friction and buffering constant between conveyor belts. In situ stress down roll mechanical equipment will break the molecular structure chain of vulcanized rubber, form acid group, lead to chain reaction of air oxidation, and form the whole process of organic chemistry. The whole process of mechanical equipment breaks the molecular structure chain and the active air oxidation of mechanical equipment. By today's standards, who has the upper hand? In addition, it is easy to cause ROS cracking under stress.

6、光：微波越小，動能越大。硫化橡膠對紫外線的高動能有破壞作用。紫外光能立即引起硫化橡膠分子鏈的斷裂和化學交聯(lián)，硫化橡膠由于消化和吸收光而引起的礦物酸基團，引起和加速整個過程的空氣氧化鏈反應。紫外線起暖化作用。光效(與熱效率相反)的另一個特點是它是橡膠表面生長的關鍵。在粘接率高的樣品中，會出現(xiàn)雙面網(wǎng)狀結構的裂紋，即“光學表面裂紋”。

6. Light: the smaller the microwave, the greater the kinetic energy. Vulcanized rubber can destroy the high kinetic energy of ultraviolet radiation. UV light can immediately cause the molecular chain breaking and chemical crosslinking of vulcanized rubber. The mineral acid group of vulcanized rubber caused by digestion and absorption of light can cause and accelerate the air oxidation chain reaction in the whole process. Ultraviolet rays play a warming role. Another characteristic of light efficiency (as opposed to thermal efficiency) is that it is the key to rubber surface growth. In the samples with high adhesion rate, there will be double-sided network structure cracks, namely "optical surface cracks".