What are the advantages and disadvantages of plastics?

As a widely used material, plastic has certain advantages and disadvantages in production and consumption. The following are some common advantages and disadvantages:

Advantages:

1. Lightweight: Plastic is a lightweight material, which is only half the weight of many other materials and is the first choice for many occasions.

2. Corrosion resistance: Plastic has good corrosion resistance and can resist the corrosion of acid, alkali and chemical substances, so it is widely used in many fields.

3. Waterproof: Plastic has good waterproof performance and is an ideal material for producing water pipes, plastic bags and other products.

4. Low cost: Compared with other materials, the production cost of plastic is lower, and it is easy to be processed into various shapes and sizes.

Disadvantages:

1. Refractory: Plastics take a long time to degrade, and some plastics even take hundreds of years to completely degrade, which has caused great pollution to the environment.

2. Non-recyclable: Many plastics cannot be recycled, which leads to the accumulation of waste plastics, which is harmful to the environment.

3. Chemical hazards: Some chemicals in plastics, such as bisphenol A, are considered harmful to human health.

4. Deformability: Plastic has low hardness, which is easy to deform, scratch and wear when heated.