Introduction
As part of our year 12 program in chemistry, we had to learn about chemical and environmental technologies. Cellulose is a big part of our world because we use it to produce insulation, paper and paperboard. It is important to know how everyday things are made and what they are made of.
Anotācija:
Šis darbs ir par celulozes rašošanu. Darbā ir iekļauti 8 jautājumi par celulozes rašošanas procesiem un par to, kā to izmanto. Visi jautājumi tika veidoti no video materiāla, kurš tika ņemts no www.youtube.com
Task
Watch the video below and answer the questions on the next page!
Process
Questions:
1. How does the production of cellulose begin?
2. What is the primary mixer?
3. Why is the magnet on the primary mixer important?
4. What happens to the paper after it is shredded?
5.What is boric acid and what does it do?
6. What is the name of the machine that shreds the paper further and mixes with more boric acid?
7. Why is the open flammability test important?
8. What is insulation performance?
Evaluation
Answers:
1. The factory receives recycled paper in bulk which is put on a conveyor belt.
2. A machine that separates the peaces of paper and prepares them for shredding.
3. It removes any metal that might be in the recycled paper.
4. It is mixed with boric acid.
5. Boric acid is a natural compound and it acts as a fire retardant and pest resistor.
6.Fiber riser
7. It is made to represent a house roof on a hot day which test it to see if it catches fire.
8. It is referred to as r value and the higher the R value the more effective is the insulation.
Conclusion
Congratulations! You have answered all the questions and learned about the production of cellulose!
This video material gave you the basic information on how cellulose is made and the process of the production.
Credits
Video material was taken from www.youtube.com . This material can be used further learning about the production of cellulose. The video material explains the production very clearly and with simple language.