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Trash Bags

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on 15 May 2015

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Transcript of Trash Bags

Research
The independent variable for this project is they type of trash bag, while the dependent variable is the amount of weight the trash bag can hold. The most common material that trash bags are made out of is polyethylene, which is a petroleum based substance. Many people choose to buy polyethylene trash bags because they have the ability to lift more weight, and they have a higher tear resistance. The most common type of polyethylene is low density polyethylene. Though high density polyethylene trash bags have a better load capacity, low density polyethylene trash bags are less vulnerable to ripping. The root of polyethylene comes from natural gases.
Polyethylene is a petroleum
Hypothesis
It is hypothesized that if "Glad Drawstring Stronger with Less Plastic" is used, then it will be able to hold the most weight, because it has the most polyethylene.
Procedures
1) Place 30 pounds of weight into "Glad stronger with less plastic" trash bag.
2) Lift the trash bag, and if it does not rip, add 5 more pounds of weight after each lift, until it does rip.
3)Repeat this process 3 times.
4)Repeat with Costco brand trash bags and Great Value brand trash bags.
Data Table
1 2 3 Average
Great Value 40 40 35 38.33
Costco 45 45 45 45
Glad 60 55 55 56.66

Analysis
Materials
Glad tear resistant garbage bags
Great Value garbage bags
Costco garbage bags
weights
Graph
Trash Bags
What effect does the brand of a trash bag have on the weight it can hold?
Problem Statement
based substance and starts from natural gases. Natural gases are fossil fuels, which are made up of various chemicals. Natural gases come from decomposed plants and animals over hundreds of million years. In order to make plastic, ethane gas is needed, because ethane gas turns into ethylene, which is reacted and turned into polyethylene, Polyethylene is then the main substance that makes garbage bags.
Trash bags vary in size, weight capacity, and shape. The most common brand of trash bags is Glad, with the "Drawstring Stronger With Less Plastic" getting the best reviews overall. Many of the store brand trash bags do not get strong reviews with their capacity to withstand weight. The cost of each trash bag is 7 to 25 cents, though many people are willing to buy a stronger trash bag that doesn't rip for a higher price. In conclusion, there are many types of trash bags, mostly made up of polyethylene, which is a petroleum based, a substance that starts from natural gases.
(In pounds)
The main result of this experiment is that the more polyethylene, the stronger the trash bag. There could have been a different pace at which the bag was lifted, causing an error in the data. Also, different people lifting the trash bag could have made the trash bag rip differently, causing an error in the data. My hypothesis was correct, because "Glad Stronger with Less Plastic" was able to lift the most weight. To further understand this topic, I could test the different types of Glad trash bags to see which of these are most tear-resistant.
Brighton Montierth
Period 2
4/28/15

Abstract
The purpose of this report is to test the ability different brands of trash bags have to carry weight. In this experiment, it was found that the Glad stronger with less plastic was able to hold the most weight, up to an average of 56 pounds. Next was Costco brand Trash bags, holding up to an average of 45 pounds. The weakest brand of trash bags was Great Value trash bags, only holding an average of 38 pounds. I found that the Glad stronger with less plastic contained the most polyethylene, which caused it to be able to carry the most weight.
Source one
Gregory, B.H. Polyethylene Film Extrusion A
Process Manual. Victoria: Trafford
Publishing, 2009. Print.
1)Garbage bags will range in thickness from 12-15 micrometers
2) Critical Properties to make a good trash bag are:-Puncture resistant
-recycle acceptance
-toughness
-seal strength
-cost
Source Two
Walker, Iain. "Garbage Bags and Laundry Baskets:
Homemade Airflow Diagnostic Tools Get Tested." Home Energy.Nov. 2oo3. web.
1) The thicker the trash bag, the more it can hold without ripping
2)They use low-density polyethylene to make trash bags, which was was created in 1942
Source Three
Peacock, Andrew J. Handbook of polyethylene
structures, properties, and Applications. New York: Marcel Dekker, 2000. Print.
1) Polyethylene is made up of carbon atoms with a pair of hydrogen atoms attached to each carbon atom
2) There is both low density polyethylene as well as high density polyethylene
"Trash bags 101, Find out how trash bags are made,
and common uses." U.S. packaging & wrapping LLC. N.P. 2014. Web.
Source Four
1) Most all trash bags are made up of polyethylene, which is petroleum based product. It has good strength and high tear resistance

2) The more high density of polyethylene, the stronger the trash bags, and the bigger the load capacity
Narrative Of Trends
It was found that the Glad stronger with less plastic was able to hold the most weight, up to an average of 56 pounds. Next was Costco brand Trash bags, holding up to an average of 45 pounds. The weakest brand of trash bags was Great Value trash bags, only holding an average of 38 pounds.
Glad stronger with less plastic was able to hold the most weight because it had the most dense polyethylene and it was the thickest of the three trash bags, which made it have the most tear resistance.
Errors
There could have been a different pace at which the bag was lifted, causing an error in the data. Also, different people lifting the trash bag could have made the trash bag rip differently, causing an error in the data. The weights were made of metal, which may have caused the bag to rip earlier than if it was tested with softer material.
Readdress Hypothesis
The hypothesis is supported, because Glad Stronger With Less Plastic was able to hold the most weight. All of my data supported my hypothesis.
Significance
These results are important, because people generally want a trash bag that can hold the most weight without ripping. This is valuable knowledge, so that people know which trash bags to buy.
For the Future
In the future, I would change my project to the exact weight the trash bag can carry, instead of in measurements of five. I would also like to see how name-brand trash bags compare to each other, as well as how generic-brands compare to each other. How easily a trash bag is ripped could also be tested.
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