As a plastic raw material, PET mainly includes polyethylene terephthalate PET and polybutylene terephthalate PBT. Polyethylene terephthalate is also commonly known as polyester resin. It is a condensation polymer of terephthalic acid and ethylene glycol, and together with PBT. PET is commonly in daily life, but many people do not know how to identify high-quality PET plastic raw materials.
PET is a milky white or light yellow highly crystalline polymer with a smooth and shiny surface. Creep resistance, fatigue resistance, good friction resistance, low wear and high hardness, with the greatest toughness among thermoplastics; good electrical insulation performance, little affected by temperature, but poor corona resistance. Non-toxic, weather resistance, good stability against chemicals, high hygroscopicity, must drying before molding. Resistant to weak acids and organic solvents, but intolerant hot water immersion and alkali.
PET resin has high glass transition temperature, slow crystallization speed, long molding cycle, long molding cycle, large molding shrinkage, poor dimensional stability, brittle crystallized molding, and low heat resistance.
Besides the properties of PBT, PET also has the following identification methods for PET plastics:
1. Smell
the smell of PET is different from ordinary plastics, burn it with a lighter, and then you will smell very fragrant and comfortable (burn a bottle to smell it), if PET contains other ingredients, the smell will be very pungent . If there is a bottle containing SEBS ingredients, it cannot be used.
2.Wiredrawing
when it is burning, pull the wire on the lighter to see if the wire is long, then break the drawn wire, check if the wire is rolled into a small circle at the breakpoint in the middle. The more it rolles, the higher melting point it is.
3. Check the burnt part
If it turns black too much or the oil drops quickly, most of the melting points are abnormal, which is often seen in PET film sheets.
But generally if it is bottle flakes, there shouldn’t be any major problems. The most critical point is to distinguish whether it contains pvc, which is the fatal injury of PET. First take more samples, and then lay them flat in a sunny place. PVC is light blue in the sun. If there are white creases in the middle of the fold. The above is the naked eye identification, the accuracy is limited, mainly depends on experience.
There is also a more practical and better way. Buy an oven and adjust the temperature to 250 degrees and bake there for half an hour. If the product contains PVC, there will be a lot of yellow spots on the surface; if the melting point is not enough, it will be very fast melt.
Learn to identify PET plastic raw materials, you can easily find good-quality plastic raw materials.Winiber, provides whole bottle production Line. Includes PET bottle blowing machine, PET preform mould, injection machines and its auxliary machines. Click your mouse to contact with us!
Would love to always get updated outstanding website! .
This info is invaluable. How can I find out more?
Thank you for any other magnificent article. Where else could
anybody get that type of info in such a perfect method of writing?
I’ve a presentation subsequent week, and I’m on the search for such info.
I every time spent my half an hour to read this web site’s articles or
reviews every day along with a mug of coffee.
Hmm it appears like your blog ate my first
comment (it was super long) so I guess I’ll just sum it up what I had written and say, I’m thoroughly enjoying your blog.
I too am an aspiring blog blogger but I’m still new to everything.
Do you have any suggestions for beginner blog writers?
I’d really appreciate it.
I was curious if you ever thought of changing the layout of your blog?
Its very well written; I love what youve got to say. But maybe you could a little
more in the way of content so people could connect
with it better. Youve got an awful lot of text for only having one or two images.
Maybe you could space it out better?
Hi to all, the contents existing at this web site are in fact
remarkable for people knowledge, well, keep up the good work fellows.
Thanks on your marvelous posting! I really enjoyed reading it, you might be a great author.I will remember to
bookmark your blog and may come back very
soon. I want to encourage one to continue your great work,
have a nice morning!
Excellent way of telling, and pleasant article to get information concerning my presentation topic, which i am going to present in college.
You can certainly see your enthusiasm in the work you write. The world hopes for more passionate writers like you who are not afraid to say how they believe. Always follow your heart.
After research a couple of of the blog posts in your website now, and I really like your approach of blogging. I bookmarked it to my bookmark website record and can be checking back soon. Pls try my website as nicely and let me know what you think.
My partner and I absolutely love your blog and find the
majority of your post’s to be exactly I’m looking for. can you
offer guest writers to write content available for you?
I wouldn’t mind publishing a post or elaborating on most of the subjects you write with regards to here.
Again, awesome site!
Some genuinely choice content on this internet site, saved to fav.
Spot on with this write-up, I really think this website wants rather more consideration. I抣l probably be again to learn much more, thanks for that info.
Thanks for this post, I am a big big fan of this internet site would like to keep updated.
It抯 arduous to seek out educated individuals on this subject, but you sound like you understand what you抮e talking about! Thanks
Great blog! Is your theme custom made or did you download it from somewhere?
A design like yours with a few simple adjustements would really make my blog jump out.
Please let me know where you got your design. Thank you
Wow! After all I got a blog from where I can really obtain useful information regarding
my study and knowledge.
Just want to say your article is as astonishing. The clarity to your submit is simply great and i could think you are an expert in this subject.
Fine along with your permission let me to seize your RSS feed to keep updated with
impending post. Thank you 1,000,000 and please carry on the gratifying work.
I like the helpful info you supply for your articles.
I’ll bookmark your blog and test again here regularly.
I am reasonably certain I will be told a lot of new
stuff right here! Best of luck for the following!
My family always say that I am killing my time here at net,
however I know I am getting familiarity daily by reading thes
pleasant articles.
Hello, yes this piece of writing is in fact pleasant and I
have learned lot of things from it on the topic of
blogging. thanks.
Thank you for the good writeup. It in fact was a amusement account
it. Look advanced to far added agreeable from you! However, how could we communicate?
It is perfect time to make some plans for the future and it’s time
to be happy. I’ve read this post and if I could I wish to suggest you some interesting things or tips.
Perhaps you can write next articles referring to
this article. I desire to read even more things about it!
If you desire to obtain a great deal from this article then you have to apply such methods to your
won blog.
Very nice post. I just stumbled upon your blog
and wanted to say that I’ve truly enjoyed surfing around your blog posts.
In any case I will be subscribing to your rss feed and I hope you write again soon!
My spouse and I stumbled over here from a different page and thought I might check things
out. I like what I see so i am just following you.
Look forward to looking into your web page for a second time.
I just could not leave your web site before suggesting that I really enjoyed the standard information a person supply to your visitors Is gonna be again steadily in order to check up on new posts
Hello There. I found your blog using msn. This is an extremely well written article.
I’ll make sure to bookmark it and come back to read more of
your useful information. Thanks for the post. I will certainly comeback.
Wow! After all I got a weblog from where I be capable of actually obtain useful facts regarding my study and knowledge.
Wonderful site. A lot of helpful info here.
I am sending it to several friends ans additionally sharing in delicious.
And obviously, thanks to your sweat!
I’m gone to inform my little brother, that he should also go to see this weblog on regular basis to get updated
from newest news.
It’s actually very complicated in this active life to listen news on TV, so I simply
use the web for that reason, and take the most up-to-date news.
Why users still make use of to read news papers when in this technological globe the whole thing
is existing on web?
Hello! Do you use Twitter? I’d like to follow you if that would be
okay. I’m definitely enjoying your blog and look forward to new updates.
Today, I went to the beach front with my children. I found a sea
shell and gave it to my 4 year old daughter and said “You can hear the ocean if you put this to your ear.” She
placed the shell to her ear and screamed. There was a hermit crab inside and it pinched her ear.
She never wants to go back! LoL I know this is completely off topic but I had to
tell someone!
I am sure this paragraph has touched all the internet
users, its really really pleasant piece of writing on building
up new weblog.
Piece of writing writing is also a fun, if you be familiar with afterward you can write if
not it is complex to write.
Hello there! Would you mind if I share your blog with my zynga group?
There’s a lot of folks that I think would really appreciate your
content. Please let me know. Thanks
yes, of course you can
Hi, just wanted to say, I loved this post.
It was practical. Keep on posting!
It’s an awesome piece of writing in favor of all the
internet people; they will obtain advantage from it I am sure.
Thanks very interesting blog!
Hey there would you mind letting me know which hosting company you’re using?
I’ve loaded your blog in 3 different internet browsers and I must say this blog loads
a lot quicker then most. Can you suggest a good web hosting provider at a reasonable price?
Thanks, I appreciate it!
Very good info. Lucky me I discovered your website by accident (stumbleupon).
I’ve book marked it for later!
I really like it whenever people get together and
share views. Great website, keep it up!
Hi there! I simply would like to offer you a big thumbs up for your great information you have here on this post.
I will be coming back to your site for more soon.
Hi there Dear, are you genuinely visiting this web site on a regular basis, if
so then you will absolutely obtain nice experience.
I am now not positive where you’re getting your info, but good topic.
I must spend a while studying much more or working out
more. Thanks for wonderful info I used to be on the lookout
for this info for my mission.
Thanks for sharing such a fastidious thought, article is
good, thats why i have read it completely
Nice respond in return of this issue with real arguments and describing all about
that.
Howdy! This post couldn’t be written any better!
Looking through this post reminds me of my previous roommate!
He always kept preaching about this. I will send this post to him.
Fairly certain he will have a good read. Thanks for sharing!
If some one needs expert view on the topic of blogging and site-building after that i propose him/her to pay a quick visit this web site,
Keep up the pleasant job.
Hi there, i read your blog from time to time and
i own a similar one and i was just wondering if you get a lot of spam feedback?
If so how do you stop it, any plugin or anything you
can suggest? I get so much lately it’s driving me insane so any assistance is very much appreciated.
I will right away grab your rss as I can not find your e-mail subscription link or newsletter service.
Do you have any? Please allow me recognise so that I may subscribe.
Thanks.
It’s a shame you don’t have a donate button! I’d definitely donate
to this brilliant blog! I suppose for now i’ll settle for book-marking and adding your RSS
feed to my Google account. I look forward to
brand new updates and will talk about this blog with my Facebook group.
Chat soon!
Hi! This is my 1st comment here so I just wanted to give a quick shout out and say
I genuinely enjoy reading your blog posts. Can you recommend any other blogs/websites/forums that cover
the same topics? Thanks a ton!
My family all the time say that I am wasting my time here
at web, except I know I am getting knowledge every day by reading thes pleasant articles or reviews.
I really like what you guys are up too. This type of clever work
and coverage! Keep up the fantastic works guys I’ve you guys to my blogroll.
This article will assist the internet people for setting up new
web site or even a blog from start to end.
Thanks for some other fantastic article. Where else may anybody get that kind of info in such a perfect approach of writing?
I’ve a presentation subsequent week, and I’m on the look for such information.
When some one searches for his necessary thing, therefore he/she wishes to be available that
in detail, thus that thing is maintained over here.
If you want to take a good deal from this article then you
have to apply such methods to your won webpage.
Every weekend i used to visit this website, as i want enjoyment, for the reason that
this this web site conations actually fastidious funny information too.
If you are going for finest contents like myself, just go to
see this web site everyday as it presents quality contents, thanks
Appreciation to my father who stated to me concerning this weblog, this webpage is really
remarkable.
There is certainly a lot to know about this topic. I like all the points you have made.
Heya just wanted to give you a quick heads up and let you know a few of
the images aren’t loading correctly. I’m not sure why but
I think its a linking issue. I’ve tried it in two different internet browsers and both show the
same outcome.