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Result Untuk Food Packaging

The document contains results from an experiment measuring the weight of containers with different materials (plastic, aluminium, paper) over time. It includes tables showing the average weight and weight change for each material on different days. It also contains graphs plotting the weight against time for each material, with linear trend lines. The slope of each trend line represents the permeability of the material. Plastic had the highest permeability/water vapour transmission, while aluminium had the lowest.

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94 views4 pages

Result Untuk Food Packaging

The document contains results from an experiment measuring the weight of containers with different materials (plastic, aluminium, paper) over time. It includes tables showing the average weight and weight change for each material on different days. It also contains graphs plotting the weight against time for each material, with linear trend lines. The slope of each trend line represents the permeability of the material. Plastic had the highest permeability/water vapour transmission, while aluminium had the lowest.

Uploaded by

nasuha
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOCX, PDF, TXT or read online on Scribd
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RESULTS

Table 1: The Weight of Container for Plastics (g)

Day (s) Weight of container (g)


Sample 1 Sample 2 Sample 3 Average Weight ∆ weight
weight (g)
0 106.90 107.33 107.62 107.28 - -
3 93.17 76.15 105.43 91.58 15.70 15.70
7 77.22 34.52 80.83 62.52 44.76 29.06
9 74.31 8.32 76.54 53.06 54.22 10.54
12 71.50 8.22 68.37 49.36 57.92 3.16
15 54.72 8.16 60.37 41.08 66.20 11.44

Table 2: The Weight of Container for Aluminium (g)

Day (s) Weight of container (g)


Sample 1 Sample 2 Sample 3 Average Weight ∆ weight
weight (g)
0 107.59 107.14 107.62 107.45 - -
3 104.20 106.16 106.30 105.55 1.90 1.90
7 100.61 103.99 103.71 102.77 4.68 2.78
9 95.55 101.15 100.87 99.19 8.26 3.58
12 87.51 99.71 99.72 95.65 11.8 3.54
15 78.97 78.59 92.69 83.42 24.03 12.23

Table 3: The Weight of Container for Paper (g)

Day (s) Weight of container (g)


Sample 1 Sample 2 Sample 3 Average Weight ∆ weight
weight (g)
0 107.62 108.34 108.48 108.15 - -
3 104.64 105.11 105.22 104.99 3.16 3.16
7 99.58 97.98 98.98 98.85 9.30 6.14
9 97.53 92.73 95.89 95.38 12.77 3.47
12 93.38 89.18 89.57 90.71 17.44 4.67
15 85.54 85.49 77.36 82.80 25.35 7.91
Weight (g) vs Time (Day)
80
y = 4.5427x + 4.9723
70
60
Weight (g)

50
40
30
20
10
0
0 2 4 6 8 10 12 14 16
Time (Day)

weight Linear (weight ) Linear (weight )

Figure 1: Graph of weight (g) against time (days) for plastic

Weight (g) vs Time (day)


30
25
20
y = 1.4574x - 2.7283
Weight (g)

15
10
5
0
-5 0 2 4 6 8 10 12 14 16
Time (Day)

weight (g) Linear (weight (g)) Linear (weight (g))

Figure 2: Graph of weight (g) against time (days) for aluminium


Weight (g) vs Time (day)
30
25
y = 1.6581x - 1.3752
20
Weight (g)

15
10
5
0
-5 0 2 4 6 8 10 12 14 16
Time (Day)

weight (g) Linear (weight (g)) Linear (weight (g))

Figure 3: Graph of weight (g) against time (days) for paper

The formula for slope:

𝑾𝟐 − 𝑾𝟏
𝑺𝒍𝒐𝒑𝒆 =
𝒕𝟐 − 𝒕𝟏

Where:

Slope = permeability of package, in grams water per day (g H2O/d)

W2 – W1 = difference in weight gained (in grams) between two points on the straight line

t2 – t1 = difference in time (in days) between the points corresponding to W2 and W1


Table 4: The value of slope for each types of packaging.

Types of Packaging Slope (g / day) Average permeability (g/m2. day)


Plastic 4.2083 738.2982
Aluminium 1.8442 323.5439
Paper 1.8492 324.4211

Diameter of container : 85.16


Diameter of mm = 0.0852
container m mm = 0.0852 m
: 85.16
Radius of container : 0.0426 m

Area of container : 0.0057 m 2

Thickness of plastic : 0.09 mm = 90 µm

Thickness of paper : 0.11 mm = 110 µm

Thickness of aluminium : 0.02 mm = 20 µm

Volume of water : 100 ml

Water vapour transmission rate (WVTR):

(𝑎𝑚𝑜𝑢𝑛𝑡 𝑜𝑓 𝑤𝑎𝑡𝑒𝑟) 𝑔𝑟𝑎𝑚𝑠 𝐻2 0


𝑊𝑉𝑇𝑅 = =
(𝑎𝑟𝑒𝑎)(𝑡𝑖𝑚𝑒) 𝑚2 . 𝑑𝑎𝑦

Table 5: The value of water vapour permeability for each types of packaging.
𝒈𝒓𝒂𝒎𝒔 𝑯𝟐 𝟎
Water Vapour Permeability ( )
𝒎𝟐 .𝒅𝒂𝒚
Days
Plastic Aluminium Paper
3 918.1287 111.1111 184.7953
6 1121.8045 117.2932 233.0827
9 1056.9201 161.0136 248.9278
12 846.7836 172.5146 254.9708
15 774.2690 281.0526 296.4912

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