The hardness of POM plastic pepper ball is very high, but the disadvantage of POM plastic pepper ball is that it is easy to break under excessive pressure, which directly affects the application of POM plastic pepper ball in high-strength environment. How to make POM plastic pepper ball not break during use? At present, the best method is to add glass fiber to POM raw materials for modification. After POM plastic pepper balls were modified with glass fiber, the toughness was obviously enhanced, and the hardness remained unchanged before and after adding glass fiber. Therefore, POM plastic pepper balls modified with glass fiber can solve the problem of POM plastic pepper balls breaking well.The raw materials used to add glass fiber to POM plastic pepper balls can be obtained in two ways. One way is to directly buy raw materials that already contain glass fiber. Generally, the glass fiber content of this raw material is between 10% and 30%, but because the glass fiber ratio of the bought POM raw materials is fixed, it may not meet the needs of customers for the strength of POM plastic pepper balls. The other way is to find a factory specializing in POM material modification and enhancement to help process POM glass fiber materials. The advantage of this method is that it can produce a variety of POM raw materials containing glass fiber according to the needs of customers. The hardness and strength of POM plastic pepper balls are tested by producing POM plastic balls, which is also the best way to strengthen POM plastic balls and add glass fiber at present.Adding glass fiber to POM plastic pepper balls can really solve the problem of poor toughness and cracking, but the surface smoothness of POM plastic pepper balls produced by adding glass fiber will be worse. The higher the proportion of glass fiber, the worse the surface smoothness. Therefore, whether POM plastic pepper balls should be modified with glass fiber or not needs to be selected according to the actual quality requirements of customers.