Stack Exchange Network

Stack Exchange network consists of 174 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

Questions tagged [plastic]

A plastic material is any of a wide range of synthetic or semi-synthetic organic solids that are moldable. They are usually synthetic, most commonly derived from petrochemicals, but many are partially natural.

2
votes
0answers
28 views

Is burning PVC with municipal waste 'acceptable' nowadays?

I started to write a comment under the question Is there an efficient way to dispose of credit cards? about the dangers of burning PVC, because this can lead to dangerous chlorine compounds in the ...
3
votes
1answer
49 views

Is there an efficient way to dispose of credit cards?

I have about 10 credit cards which I ended up not using for various reasons and I feel bad for having to throw them away in the trash, this is the case for many other things, but seems quite ...
0
votes
1answer
61 views

Can garbage trucks crush empty but closed plastic bottles?

Empty plastic bottles are often dumped carelessly without being flattened but the cap on. I assume no human can flatten such a 1.5l bottle (see example image), but can a garbage truck? I want to ...
1
vote
0answers
91 views

What ecofriendly well paying jobs in deep learning are there?

I'm currently learning how to train and use neural networks, as I've heard getting into this field would be worthwhile from the people at https://80000hours.org/ Is there any application of this ...
4
votes
1answer
50 views

What are crisp packets made from?

What are crisp packets made from, specifically Tyrrells or Walkers. I am doing a school project on single use plastic crisp packets. I am finding it difficult to find information online.
3
votes
1answer
42 views

Is Polyacrylamide a material used to make microbeads?

I found a face scrub that states Polyacrylamide as an ingredient. Should I avoid it because Polyacrylamide is used to make the microbeads?
7
votes
1answer
63 views

Paper plates vs plastic plates in the landfill

I avoid using disposable plates as much as possible, but there are situations where that's not an option, such as at company events. And in those situations, I'm sometimes faced with deciding between ...
6
votes
0answers
32 views

Freezing Ice Pops Sustainably

When storing ice pops for retail customers, I need to package them in a freezer-safe ,clear wrapping. I would like for it to be compostable, but apparently the compostable cellophane options are not ...
5
votes
4answers
100 views

Alternatives to bottled water in the UK

I live in Devon, and tap water in my household does not taste consistently. When I moved in my current property, the neighbours warned me that they had been buying bottled water since 20 years, ...
14
votes
2answers
96 views

Does transporting plastic offset the benefits of recycling it?

Apparently China has been processing about half the world's waste until this year, and most of that waste is transported over the ocean in large container ships. Recycling plastic uses less energy and ...
11
votes
2answers
125 views

How do plastic bags and other waste end up in the ocean?

There are many photos of the ocean, which in some parts is littered with all sorts of waste, often plastic bags, containers etc. I just wonder - how do such large amounts of plastic land in the ocean/...
7
votes
1answer
612 views

How many times can plastic be recycled?

This answer to another question brought up the point that "recycling" of plastic is often more accurately "downcycling." From Wikipedia: Downcycling, also referred to as cascading, describes the ...
1
vote
0answers
27 views

What's the environmental cost of plastic per gram?

Imagine a person that is fine littering so long as they pick up trash elsewhere. How much would they want to donate to environmental organisations in order to offset the effect they have on the ...
5
votes
1answer
63 views

Non-Biodegradable Glitter

How can I dispose of a box full of non-biodegradable glitter in an ecologically friendly way? Everything i read about melting or burning plastic gives me conflicting information about toxins and i don'...
5
votes
0answers
52 views

Which is more sustainable for eyewear/spectacles : Glass lenses or Fiber-plastic lenses?

I am about to get my first pair of spectacles. From where I am, glass lenses need a frame. Fiber-plastic lenses can be frameless. It's well known Fiber lenses are much more durable and longlasting. ...
3
votes
1answer
137 views

Is it worth washing a plastic bag to reuse it?

As I ask myself the question and start thinking about it, I realise it might be obvious that it is worth it. But I thought I'd ask anyway as someone might have a nice analysis to share. The other day,...
4
votes
0answers
267 views

Are biscuit wrappers (the shiny looking ones) recyclable ? Can I dump them in regular dry waste collecting containers? [duplicate]

Recurring waste has been a recurring theme in my questions about waste management. Want to ensure recyclability or reduce waste in everyday use. Are these biscuit wrappers recyclable ? A ...
3
votes
0answers
60 views

Are talcum powder tins more sustainable than the ones that come in plastic boxes?

I was shopping and as a trial, I bought a talcum powder in a tin container instead of the usual ones that comes packaged in a plastic box. The material looks like a tin, although one cannot tell from ...
4
votes
1answer
170 views

Best type of recyclable plastic to melt into a clay mold to produce a small figurine

What would be the best type of plastic to melt into a clay mold, to produce a small figurine, something that a person would have normally, already in their household - such as soda bottles, milk ...
5
votes
2answers
234 views

What is the real impact of the new Adidas collection made with recycled plastic bottles?

Adidas has a new collection made with recycled plastic bottles recovered from the oceans. I have been trying to find the real environmental impact of this collection but it has been difficult to ...
7
votes
1answer
428 views

Pure Plastic vs Biodegradable Plastic

I've been reading around (here, here, here and here) and I can't really find an answer to this question: is it better to throw, for example, dog poop, inside a pure plastic bag or use biodegradable ...
5
votes
1answer
98 views

Organic or packaging free food?

If I face the choice of organic, packaged food and non-organic non-packaged food - which is more sustainable? http://footprint.wwf.org.uk/ tells me the negative impact of packaging is twice as big in ...
13
votes
2answers
727 views

How many times do you need to use a cheap re-usable bag to offset its impact?

An op-ed in the Wall Street Journal argues that many re-usable grocery bags are made using more oil than old-fashioned "single-use" plastic grocery bags. This makes sense, as quite a bit more ...
1
vote
0answers
83 views

Melting of plastics in absence of air [closed]

Kindly advice me whether melting of plastic in absence of air produce harmful fumes or other chemicals? Whether it is a safer practice compared to normal melting?
6
votes
1answer
438 views

Is fleece clothing a cheap and sustainable alternative to conventional cotton?

I was wondering whether fleece clothing is a good, cheap and above all sustainable alternative to conventional cotton, which uses a lot of pesticides and takes a lot of water to grow. The other ...
3
votes
1answer
88 views

Should we leave all fossil fuels in the ground and not use them?

I get the feeling that there is such a strong backlash against fossil fuels that there is an irrational movement to purge them completely. Maybe because people are transferring their worries about ...
12
votes
2answers
12k views

Why can't black plastic be recycled?

My local council now takes most types of plastic bottles, pots, tubs and trays in the recycling bin. But they specifically exclude black plastic containers. Is there a reason for this? Why can't ...
6
votes
1answer
129 views

How to recycle disintegrated plastic bags, without negatively impacting the environment?

We've just gotten some old books out of the loft, and it appears the plastic bags they were in have disintegrated/biodegraded. What is the most environmentally friendly way to dispose of them?
5
votes
1answer
442 views

How does bioplastic recyclability compare with petrochemical-based plastic recyclability?

I am curious to know how recyclable bioplastics are. For example, how recyclable would a polylactic acid (PLA) cup be when compared to a conventional PET cup? Can the material go through a comparable ...
5
votes
3answers
429 views

What will be the effect of PET-eating bacteria in society?

In a very recent paper scientists talk about the discovery of a bacterium ("Ideonella sakaiensis") which can "eat" PET, one of the most common types of plastic. I was wondering what effect this ...
5
votes
2answers
462 views

Store drop-off vs curbside recycling plastic bags

The curbside recycling service in my town accepts plastic bags. I wonder whether there is any difference in the recycling process (thus there is any environmental benefit) between this and taking them ...
12
votes
1answer
173 views

Is plastic food packaging 100% reusable?

There is the prominent argument that we should buy food without plastic packaging because plastic is made of oil and thus bad. I'm wondering, however, what if the plastic packaging remains in the ...
6
votes
1answer
735 views

Is there a shaving razor that is an alternative to, say, Gillette Mach 3, and does not use plastic ?

I believe in adopting sustainable practices in our daily or recurring maintenance activities. Recently, I measured the amount of water I spend at the sink and shifted to mug-based shaving (rinsing the ...
9
votes
1answer
896 views

How bad are nylon and polyester clothing for the environment?

A few weeks ago I heard a news story about new research that found that polyester clothing is more of an environmental concern than previously thought. The reason for this is that each time you wash ...
8
votes
1answer
465 views

Does polyethylene film (plastic bags) breakdown chemically?

I'm researching the degradation of polyethylene (PE) plastic films such as in plastic bags, and am trying to figure if they degrade chemically. If so: under what conditions, and into what byproducts. ...
12
votes
1answer
170 views

Removing agricultural plastic film waste after 10+ years degradation

[reposted from Earth Science since more relevant here] I am at a farm where previous tenants left a non-biodegradable plastic film roughly 10-15 years ago. It is inconsistently spread over a few ...
6
votes
1answer
170 views

Why is hybrid packaging so frequently used to package bread?

With hybrid packaging I refer to the combined packaging of plastic and paper. They are often offered by supermarkets for consumers to put inside fresh bread and buns. The reasons I can imagine for ...
5
votes
1answer
693 views

What are the five most widely used consumer products made of recycled plastic?

By most widely used I mean in terms of sales annually (worldwide). With consumer products I follow the definition found on the BusinessDictionary, referring to merchandise or other item of common or ...
3
votes
3answers
218 views

Recycling plastic food tubs that have no resin identification code?

In my local council (I live in the UK), one category of confirmed recyclables is "plastic bottles, pots, tubs & trays". But surely not all plastic tubs can be recycled? Some of the plastic tubs I ...
4
votes
1answer
1k views

Is there a way to melt down plastic lenses used for eyewear?

I'm looking to recycle used eyewear plastic lenses for a sculpture. I want to try to manipulate the plastic to give it a more organic look. I'm also concerned about toxic fumes, so I want to find the ...
12
votes
1answer
174 views

What chemicals are used to replace BPA in plastics?

And is there any reason to think that the replacement is any better than Bisphenol A (BPA) itself?
9
votes
2answers
9k views

Can plastic with only the Japanese recycling symbol be recycled in the US?

I bought a vacuum cleaner that came wrapped in several plastic bags. The bags only have one recycling code printed on them, the Japanese pura māku: Can these bags be recycled with ♴ or ♶ plastic film ...
9
votes
2answers
3k views

Would it be possible to recycle all plastic into bricks and use them for building or insulation?

I've had this idea for a few years and wonder if it would be feasible. Rather than simply recycling bottles and bags in blue bins, if there could be a way to melt down all types of plastic and mold ...
4
votes
1answer
2k views

When are manufacturers required to mark products and packaging with recycling codes?

I just purchased a consumer product. It was packaged in a clear plastic 'disposable' container. This shipping container is not marked in any way. There is no material designation or recycling code ...
5
votes
1answer
2k views

In general, is cardboard with a plastic coating acceptable for recycling?

Many children's toys and other items come with a box or package made of cardboard with a thin plastic coating. How does this affect the recycling process? Can paper recycling facilities generally ...
6
votes
2answers
14k views

Do #4 (♶ LDPE) plastic bags need to be recycled at grocery stores like #2 (♴ HDPE) plastic bags?

Many recycling programs don't accept #2 (♴ - high-density polyethylene - HDPE) plastic bags (only #2 rigid plastic). Does the same apply to #4 (♶ - low-density polyethylene - LDPE) plastic? I've ...
5
votes
1answer
85 views

Where can I recycle plastic caps in the US?

The city recycling bins in Denver don't allow plastic caps but some other cities do so it is possible to recycle them. Does anyone have any ideas where or how I could recycle the caps?
10
votes
1answer
867 views

Which compostable plastic types can be composted at home?

There often is confusion about compostable plastics (see for example this question on greenware items or this gardening question on plastic bags). 'Compostable' suggests that you can compost the ...
4
votes
1answer
98 views

How safe it is to produce, use, and dispose of PVC?

Environmental benefits of PVC are touted on what appears to be an industry funded website but there is also some serious criticism of PVC claiming that the manufacture produces dioxin and that ...
5
votes
3answers
473 views

What does it take to stop the use of plastic bags in big grocery stores?

Many people do their weekly groceries at large supermarkets and consume a lot of plastic bags. However, given the fact that I already know that I am going to buy a-week worth of food and supplies what ...