Use of environmentally friendly plastics
In this article, I present ideas, trends and examples of how plastics can have a positive impact on the environment. It is expected that this article will promote the proper and appropriate use of plastics. And lead to long-term sustainability
⦁ Various plastics There are 7 types of plastic:
1. Polyethylene rephthalate (PETE or PET) It is a widely used plastic. And it accounts for more than 90% of plastic bottles and various plastic packaging. Currently in use
2. High density polyethylene (HDPE) It is used in many ways, for example, in pipes, containers, liquids Tables and chairs, as HDPE has high strength and good heat resistance.
3. Polyvinyl chloride (PVC) Well known for its PVC pipes, this type of plastic can be softened by mixing a plasticizer for other tasks such as insulation, wire coating, flooring and artificial leather.
4. Low density polyethylene (LDPE) They are lighter and less durable than HDPE, and are commonly used to make plastic bags, foams and containers.
5. Polypropylene (PP) It has good strength and heat resistance. Commonly used for the manufacture of laboratory equipment, water bottles, flasks, food containers that can be placed in the dishwasher, including
My appliques in clothes. Clothing and diapers
6. Polystyrene or Styrofoam (PS) They are solid, transparent (but can be painted), brittle and break easily. Commonly used for packaging, bottles, food trays and disposable cutlery.
7. Other types of plastics Including polycarbonate, styrene fiberglass and nylon, etc.
⦁ Plastic innovation trends for sustainability
According to SCG, there are 5 main trends in the world. Demonstrating plastic innovation for sustainability consisting of
1Make recycling easier Plastic is a material that is 100% recyclable, but in the past the use of plastics has been aimed at meeting needs and uses. However, there is currently a trend of using the same material in packaging that has multiple layers or parts, which facilitates the processing of such plastic.
2. Reduction of production resources and increase of material efficiency. Plastic is popular in specialized industries such as automotive parts that help reduce weight and reduce energy consumption. Building materials focused on strength and chemical corrosion. And modern medical equipment The development of these plastics has been aimed at improving the quality, durability and performance of products. Meanwhile, there are ways to reduce the amount of resources in production in line with the circular economy
3. Return the waste back to the raw material. If plastic is a recyclable material, plastic waste is recycled for further use as a raw material. It can be classified into two types of recycling: mechanical recycling, which is the processing of waste plastics into plastic granules and molding into articles for use and feedback, or chemical recycling, which is the return of plastics as raw materials during production. in the form of gas and liquid
4. Bioplastics and alternative raw materials Bioplastics were invented to help plastics decompose faster. It is developed from a variety of raw materials such as corn, sugar cane and cassava, as plastic is a limited by-product of oil. Therefore invented an alternative raw material that can be produced (renewable raw materials)
They are used in the production of plastics such as bio-based raw materials and carbon dioxide synthesis.
5. Cooperation for sustainable development Another important trend is the collaboration between manufacturers and brand owners to jointly develop innovations that are both relevant to product owners and society. For example, BASF in collaboration with Jaguar Land Rover is working on how to make garbage. SCG and Betagro have jointly developed packaging for sticky fresh chicken pieces. Good weight gain
And exceptionally durable
⦁ Environmentally friendly examples of plastic applications
Some people may think that using more plastic. This will have a negative impact on the environment, however, if you look at it in the long run, then in many cases it will be found that the use of plastics is beneficial. Efficient and environmentally friendly in the long run For example Replacing metal car parts with polymers, they are easier. As a result, it can reduce the use of energy or fuel to drive a car. And also make it less expensive for both the manufacturer and the end user. Another example is the use of plastic in the manufacture of insulation for the construction of large houses or buildings. Which allows huge energy savings and it has a long-term positive impact on the environment. In addition, those who have traveled to certain countries may be able to use polymer banknotes.
For example, in Australia, Singapore, Hong Kong, England, Malaysia and Canada, the idea of using polymer to produce banknotes originated in Australia more than 30 years ago, where polymer banknotes are more durable and last about 2.5 times longer than paper banknotes. Yes
In addition, polymer notes also have a surface coating after printing. Thus, the polymer banknotes that have been circulated and exhausted will be returned and destroyed in an environmentally friendly way in the central banks of each country. Including the ability to dispose of for further use in various ways