Group 4 Flashcards

1
Q

g involves turning raw ingredients
like petroleum or natural gas into polymers that may be
moulded or sculpted into a variety of shapes

A

Plastic manufacturing

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2
Q

The primary raw material used to manufacture plastics

A

petroleum

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3
Q

The production and transportation of plastic products and the
disposal of plastic waste can contribute to

A

carbon emissions

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4
Q

can take the form of solid materials like discarded
material and packaging, as well as hazardous waste like
chemicals and by-products

A

waste

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5
Q

Ocean litter has been identified and quantified in the four marine habitats

A

beach, ocean bottom, ocean water column, and ocean surface

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6
Q

designed to accept solid debris and
prevent contamination of the land and groundwater
from the solid debris.

A

landfills

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7
Q

Landfills are, typically,
designed according to the _________ strategy

A

Cap and Seal

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8
Q

primarily include chlorinated
and brominated compounds, for example, chlorofluorocarbons.

A

ozone depleting chemicals

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9
Q

can be formed from many chemicals including carbon monoxide, particulates, and
hydrocarbons

A

smog

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10
Q

bloom of vegetation in aquatic or terrestrial environments

A

Eutrophication

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11
Q

Reduction in the pH of the aquatic environment.

A

acidification

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12
Q

formed during the production of energy for manufacturing
facilities

A

Toxic chemical

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13
Q

These materials are renewable,
biodegradable, and have a lower environmental
impact than plastic.

A

natural materials

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14
Q

infinitely
recyclable and has a low environmental impact

A

glass

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15
Q

another durable and versatile material that
can replace plastic in some applications

A

metals

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16
Q

renewable, biodegradable,
and have a low environmental impact. They can be
used in a wide range of applications, including food
and beverage packaging. T

A

paper and cardboard

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17
Q

can be used to compare the environmental impacts of
producing plastic products.

A

Life cycle assessments (LCA)

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18
Q

methodology to assess the environmental impacts of a product, process, or service.

A

Life cycle assessments (LCA)

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19
Q

LCA is performed with a four-step
process that includes:

A

Definition of goal and scope
Life Cycle Inventory
Life Cycle Impact Assessment
Interpretation of the LCA result

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20
Q

ensures that comparisons can be made between different
materials, processes, or services

A

functional unit

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21
Q

one where the materials and energy required to produce
a product from raw materials to final product are used in the LCA calculations.

A

cradle-to-gate LCA

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22
Q

An LCA that considers manufacturing,
product use, and end-of-life is referred
to as

A

Cradle-to-grave

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23
Q

An LCA that
includes chemical recycling or reuse
can be referred to as

A

cradle-to-cradle

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24
Q

Inventory of relevant energy, material, and transportation inputs and related
liquid, gas, and solid generated outputs.

A

Life Cycle Inventory

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25
correspond to aggregation for each type of impact
midpoint indicators
26
correspond to the effect on target criteria
endpoint indicators
27
Converting recycled plastics to plastic pellets involves sorting, washing, drying, and pelletizing.
mechanical recycling
28
very common thermochemical decomposition of carbon-based materials at elevated temperatures of 700°C in the absence of oxygen
pyrolysis
29
a chemical recycling process for plastics wastes that involves depolymerization techniques such as alcoholysis, hydrolysis, acidolysis, and aminolysis.
solvolysis
30
type of chemical or tertiary recycling technique that is applicable to step-growth (polycondensation) thermoplastics and thermosets, such as polyesters, polyamides, and polyurethanes
solvolysis
31
the dissociation of a polymer into small particles via any mechanism.
fragmentation
32
is the undesirable modification of the original properties, due to the chemical cleavage of macromolecules forming a polymer system, whatever the mechanism that cleaves the chain
degradation
33
conversion of a polymer system into biomass
bioassimilation
34
produced by thermal degradation of hydrocarbon plastic debris without oxygen
pyrolytic oil
35
Thermal treatment of plastic waste under oxygen deprivation
gasification
36
Breaking down plastic waste into monomers aids in material recovery.
depolymerization
37
Used for hydrogenolysis of Polypropylene and Polyethylene.
depolymerization
38
Blockchain technology helps identify plastic waste by constructing tamper-proof ledgers tracking ocean-bound plastics' lifespan.
traceability
39
being used in plastic resources and waste management to design plastics for trackability, leading to a circular economy
Blockchain technology
40
Blockchain applications in waste management focus on payment or incentive facilitation and trash monitoring and tracking
Supply Chain Optimization
41
The Act mandates businesses to accept responsibility for their plastic packaging waste disposal
The Extended Producer Responsibility (EPR) Act of 2022
42
addresses the nation's solid waste problem using recycling and garbage segregation
The Ecological Solid Waste Management Act of 2000
43
Regulates the transboundary transportation of hazardous and other wastes, including plastic trash
Basel convention
44
Made from renewable materials like cornstarch and sugarcane
bioplastics
45
Can be recycled into new products like bottles or car parts.
recyclable plastics
46
Converts waste plastic into molecular components for new plastic goods
chemical recycling
47
Involves procuring resources, commodities, and services with minimal environmental, societal, and economic impact.
sustainable sourcing
48
Chemicals added to polymers to increase natural degradability.
biodegradable additives
49
Involving multiple recycling of a product without compromising quality or value
circular economy strategy/closed-loop recycling
50
Converts waste materials into new, high-quality products
Upcycling
51
Natural decomposition of organic materials like food scraps, yard trash, and paper.
Composting
52
Includes sunlight, wind, water, and geothermal heat.
Renewable energy
53
Analyze environmental impact of products or processes from extraction to disposal
Life Cycle Assessments
54
It is the maximum tensile load a material can withstand before fracturing.
tensile strength
55
t is the percentage increased in the length of plastic when subjected to tensile forces, compared to its original length.
elongation
56
_________ tensile strength is required for plastic packaging like plastic bags, since it needs to withstand sudden impact due to weight
Higher
57
It is defined as the force required to start or continue to tear a material
Tear strength
58
This measures a material’s resistance to cracking, breaking, or changing shape when subjected to sudden and intense impacts or shocks
Impact strength
59
It refers to the level of resistance or grip between the packaging material and other surfaces
Surface friction
60
It is the property of plastics that exhibit both viscous and elastic behaviors when subjected to deformation
Viscoelasticity
61
Defined as the amount of mass per unit volume, it is an important property for packaging specifically for cost.
density
62
__________density is preferred for cost and weight,
lower
63
These properties are mainly for the visual appeal of packaging
transparency and gloss
64
Polymers that are fully amorphous are
transparent
65
is the material’s resistance to chemical reactions or changes when exposed to substances like solvents, oils, acids, or alkalis
Chemical stability
66
This occurs when plastic components fail due to mechanical stress combined with exposure to agents like detergents and oils, accelerating degradation and potentially causing sudden failures.
Environmental Stress Cracking (ESC)
67
These barriers are important in preserving the product’s quality and extending its shelf life by protecting it from external forces
moisture and gas barrier
68
represents the temperature where an amorphous polymer shifts from a hard, glassy state to a softer, rubbery state, affecting flexibility and thermal stability
glass transition temperature Tg
69
indicates the temperature at which crystalline regions of a polymer melt, crucial for semi-crystalline polymers' mechanical strength and heat resistance
melting temperature Tm
70
It's vital for flexible and semi-rigid packaging like sachets, bags, and blister packs, ensuring a secure seal during heat sealing
Heat sealability
71
ability of the packaging material to prevent the passage of gases, moisture, light, odors, and other substances that might impact the product quality
barrier requirements
72
It refers to the duration a product can be stored under specific conditions to retain its safety, quality, and effectiveness.
shelf life
73
It is the extent to which the product inside the packaging is visible or can be seen by consumers
packaging visibility
74
manufacturing process to create objects with a fixed cross-sectional profile. Raw plastic material like pellets or granules is fed into an extruder
extrusion
75
sheets generally________ than films
thicker
76
Sheet plastics, often used in thermoforming, are mainly produced via
cast extrusion
77
films are made through cast extrusion with a
slot die or blown extrusion with an annular die
78
is the process of melting plastic resins and winding them into rolls
cast film extrusion
79
Another extrusion process used to fabricate film products. In this process, the plastic is melted in the extruder. The molten polymer then enters a circular die head and is formed into a tube of plastic material.
Blown film
80
is a type of transparent, flexible, and biodegradable film made from cellulose esters, primarily cellulose acetate
cellulose film
81
involves merging two or more different polymers during extrusion, offering differing functional benefits and aesthetic effects.
coextrusion
82
involves extrusion coating paper or paperboard with polymer, controlling width and thickness through a slot die.
lamination
83
nclude wax bond lamination which relies on mechanical and moderate chemical bonds, and dry bond
dry lamination
84
suits porous substrates like paper, where heat in the oven dries adhesives and substrates, ensuring a stable moisture profile
wet bond lamination
85
plastic manufacturing process that involves heating a plastic sheet and forming it using a mold to specific shapes
thermoforming
86
manufacturing process for producing parts by injecting molten material into a mold
injection molding
87
used where more than one polymer or color is required to produce a part with multiple layers or components.
multi-injection molding
88
enables the production of components with distinct colored sections or with both a core and an external layer
two-stage injection molding
89
is a process where two or more different materials are injected into a single mold cavity simultaneously
single-stage coinjection molding/multi-material injection molding
90
It is commonly used when the opening of the molded item is narrower than its overall body size, as seen in bottles and jars
blow molding
91
It is the process whereby the plastic preform is injection molded and the preform travels on the core rod to the blow mold station, where blow air enters through the core rod and lifts the hot preform material off the core rod and forms it by air pressure to the design of the female blow mold.
injection blow molding
92
It is the simplest type of blow molding
extrusion blow molding