PVC sole or rubber，which is better?
pvc鞋底和橡胶鞋底各有优劣，适用的鞋子也不相同，时装鞋PVC鞋底好，运动鞋橡胶鞋底好。
PVC soles and rubber soles have their own advantages and disadvantages, and the applicable shoes are also different. PVC soles are good for fashion shoes, and rubber soles are good for sports shoes.
pvc材料具有可调整的物性，易成型。比重大的pvc鞋底，鞋材重，柔软度差，所以价格便宜。价格决定鞋底质量因素，pvc鞋底比重小，鞋材轻，弹性好、易上色、透气性好、强度高等等特点。pvc常用于皮鞋与儿童运动鞋，时装鞋。
Pvc material has adjustable physical properties and is easy to form. The PVC soles, which are heavier than the major ones, have poor softness, so they are cheap. The price determines the quality of the sole. The proportion of pvc sole is small, the shoe material is light, the elasticity is good, the color is easy, the permeability is good, and the strength is high. PVC is often used in leather shoes, children's sports shoes and fashion shoes.
橡胶鞋底是一种高分子化合物，有分天然和人工合成的橡胶。常见橡胶大底具有手感柔软，弹性好，良好的耐磨性，耐酸碱性，在各类运动鞋底上广泛应用。橡胶鞋底缺点鞋材较重，易吐霜，价格比较贵。
Rubber sole is a kind of polymer compound, which can be divided into natural and synthetic rubber. Common rubber soles have soft feel, good elasticity, good wear resistance, acid and alkali resistance, and are widely used on various sports soles. The rubber sole has the disadvantages of heavy shoe material, easy to spit frost, and high price.
常见的鞋底材料 Common sole materials
1、橡胶：分为天然、合成两种，耐磨、弹性好、较重、成本高。
Rubber: It is divided into natural and synthetic, which is wear-resistant, elastic, heavy and costly.
2、TPR（T热、P塑料、R橡胶）：具有橡胶性能，较耐磨，成本较低，但接触机油类溶剂会打滑。
TPR (T heat, P plastic, R rubber): It has rubber properties, is relatively wear-resistant, and has low cost, but it will slip when contacting with oil solvents.
3、PU：具有优异的耐磨性和反复曲挠性能，良好的抗撕裂强度和弹性，耐油、耐酸、碱及耐低温性能优良。
PU: It has excellent wear resistance and repeated bending performance, good tear resistance and elasticity, and excellent oil, acid, alkali and low temperature resistance.
4、PVC：合成树脂，中抵挡底，因生态环保问题而少用，气垫鞋、足球鞋常用材料。
PVC: synthetic resin, medium resistant sole, less used due to ecological and environmental problems, commonly used for air cushion shoes and football shoes.
Yihua Brand PVC Resin Powder SG-5 type
