Forums » News and Announcements

Pre compounded PE100 black HDPE pipes: Insurance

    • 629 posts
    April 1, 2023 11:17 AM EEST

    Pre compounded PE100 black HDPE pipes: Insurance for long service life

    The major challenge before mankind in coming years will be to reach clean potable water to consumers without leakage during transport and without affecting the water quality.Get more news about Hdpe Pe100 Granule,you can vist our website!
    Specified and pre compounded black PE100 pipes have already demonstrated world over that it is the best candidate to accomplish this job over a minimum lifetime 50 – 100 years.
    It is necessary to understand the very important role compounding plays in getting the best quality out of specified PE100 materials to derive the maximum lifetime benefits.

    Why use black HDPE pipes?
    HDPE pipes are transported and stored in open atmosphere for considerable length of time before installation. Many pipes are installed above the ground in open sunlight. The UV rays in the sunlight, on prolonged exposure, breaks the molecular chains of PE and produces free radicals. These free radicals continue the process further. As a result, polyethylene pipes lose their flexibility and toughness over a period of time.
    Carbon black is the best and most economic UV stabilizer. Proper quality of Carbon black, properly dispersed and distributed in polyethylene by compounding, can prevent UV degradation of pipes for several years despite storage in the open sunlight.

    How much carbon black to be used in black HDPE pipes ?
    Different level of carbon black has been added into HDPE and time to degradation has been measured, it is seen that above 2% addition level there is no further increase in time to degradation. If the percentage is increased further, it will act just as an inorganic filler and will make HDPE brittle. Hence 2-2.5% addition level of carbon black is considered to be the optimum addition level.

    What quality of Carbon black is to be used for HDPE pipes ?
    ISO and European standards for HDPE Water pipes specify that t he carbon black used in the production of black compound shall have an average (primary) particle size of 10 nm to 25 nm. Use of higher size of Carbon black adversely affects the lifetime of pipes. Both ISO 4427 and European standard EN12201 specify that “only compounded materials” should be used for production of PE pipes in order to meet the requirements of quality standards.

    What are the dangers of using carbon black Masterbatches with natural PE ?
    1) By hand mixing of natural PE granules with a carbon black masterbatch (which is a concentrate of typically 40% carbon black in a very high MFI PE resin) and extruding the mixture in a pipe extruder into pipes, the pipes will surely look black, but there is hardly a good distribution and dispersion of Carbon black for proper UV protection. This is because in a single screw pipe extruder the residence time of material is quite low and intensity of mixing is also less. This may lead to agglomerates of Crabon black in pipe wall which work as crack initiation points.

    2) In case of any premature failure of pipes, neither the resin manufacturer, nor the masterbatch manufacture will take the responsibility of failure.

    3) It has been seen that using the same natural PE, but different Carbon black Masterbatches, the time to failure in pressure test vary considerably.

    4) Carbon black is a material which remains in colloidal form even in molten state. It is very difficult to disperse in a single screw pipe extruder with short residence time. Blending of natural PE with CBMB in the pipe extruder fails to ensure good dispersion and distribution of CB. This leads to poor UV protection, defects in the pipe wall and low long term reliability.

    • 189308 posts
    April 1, 2023 1:42 PM EEST

    The online casino system has grown tremendously in the last decade or so that it has been in existence - to a point where it is almost surpassing the brick and mortar casino system of the fore. Indeed, though hard statistics are hard to come by, chances are that at this point in time, there are more regular casino players who play on online casinos than there are playing in the traditional brick and mortar casinos. Comparing in terms of playing volumes (amounts of money deposited and winnings earned), online casinos are also likely to win over brick and mortar casinos hands down. ฝาก15รับ100

    • 189308 posts
    April 2, 2023 11:46 AM EEST

    There is noticeably a lot of money to understand about this. I suppose you made particular nice points in functions also. เว็บตรง สล็อตฝากถอน ไม่มี ขั้นต่ำ 1 บาทก็ ถอนได้

    • 189308 posts
    April 2, 2023 12:11 PM EEST

    The online casino system has grown tremendously in the last decade or so that it has been in existence - to a point where it is almost surpassing the brick and mortar casino system of the fore. Indeed, though hard statistics are hard to come by, chances are that at this point in time, there are more regular casino players who play on online casinos than there are playing in the traditional brick and mortar casinos. Comparing in terms of playing volumes (amounts of money deposited and winnings earned), online casinos are also likely to win over brick and mortar casinos hands down. 19รับ100

    • 189308 posts
    April 2, 2023 12:45 PM EEST

    The ending hints at a sequel! Oh joy… So this well-made but extremely shallow film is bogged down even more by an extremely UN-original screenplay and heartless direction, and that’s sad. ฝาก50รับ100 ล่าสุด

    • 189308 posts
    April 3, 2023 11:54 AM EEST

    There is noticeably a lot of money to understand about this. I suppose you made particular nice points in functions also. vhttps://heylink.me/39free100/

    • 189308 posts
    April 4, 2023 12:30 PM EEST

    After study several of the blog articles on the internet site now, and i also really like your strategy for blogging. I bookmarked it to my bookmark internet site list and you will be checking back soon. Pls look into my web page too and told me how you feel. 25รับ100 ล่าสุด

    • 189308 posts
    April 5, 2023 10:47 AM EEST

    chefdro? The Stuff- Bryan Armen Graham: Crash Course: Manny Pacquiao vs เครดิตฟรี

    • 189308 posts
    April 5, 2023 11:04 AM EEST

    With our monetary climate just how in which seriously is, To begin with . to arrange the basics of declaring bankruptcy under lack of employment perks. Options approach would be to make it clear how our lack of employment setup effective, precisely what the ordinary means accepting and rejecting conditions, then it include myths received from my own , unbiassed practical experience of what great procedures as well as the usual issues are having declaring bankruptcy under joblessness importance. ฝาก 29 รับ 100 วอเลท

    • 189308 posts
    April 5, 2023 11:50 AM EEST

    Casino enthusiasts can nowadays take their passion to the next level by playing various popular casino games on the Internet. Online casinos are the perfect alternative to traditional casinos, as they allow people to enjoy a wide range of popular games from the comfort of their home. ฝาก 9 รับ 100

    • 189308 posts
    April 6, 2023 10:54 AM EEST

    Microgaming is probably the most highly regarded name inside the online casino industry. This company has been developing quality games for quite some time and always offers the best sounds and graphics to everyone. Additionally, these casinos are recognized to offer the best casino bonuses to be found. สล็อตวอเลท

    • 189308 posts
    April 6, 2023 1:09 PM EEST

    Amusing posting. It appears that there are several actions are influenced by the creative thinking element. “We do not quite forgive a giver. The hand that feeds us is in some danger of being bitten.” by Ralph Waldo Emerson.. สล็อตเว็บตรง

    • 189308 posts
    April 9, 2023 10:49 AM EEST

    I am impressed with this internet site , very I am a big fan . Trực tiếp Seagame 32 Chaolua TV

    • 189308 posts
    April 9, 2023 11:41 AM EEST

    With our monetary climate just how in which seriously is, To begin with . to arrange the basics of declaring bankruptcy under lack of employment perks. Options approach would be to make it clear how our lack of employment setup effective, precisely what the ordinary means accepting and rejecting conditions, then it include myths received from my own , unbiassed practical experience of what great procedures as well as the usual issues are having declaring bankruptcy under joblessness importance. Cà khịa TV

    • 189308 posts
    April 9, 2023 11:50 AM EEST

    Since the enforcement of UIGEA (Unlawful Internet Gambling Enforcement Act of 2006), the USA players have limited options to choose a reputable online casino to play their favorite casino games at internet. Golden casino since its establishment in 2006 has positioned itself as the top online casino that accepts the USA players. What makes Golden Casino the preferred choice among the USA players? สล็อตเว็บตรงไม่ผ่านเอเย่นต์

    • 189308 posts
    April 10, 2023 10:47 AM EEST

    I undoubtedly didn’t understand that. Learnt some thing new nowadays! Thanks for that. Trực tiếp Seagame 32 Chaolong TV

    • 189308 posts
    April 11, 2023 10:58 AM EEST

    Aw, this was a very nice post. In concept I want to put in writing like this moreover – taking time and actual effort to make a very good article… but what can I say… I procrastinate alot and under no circumstances seem to get something done. 대여계좌

    • 189308 posts
    April 17, 2023 1:39 PM EEST

    Usually I do not read post on blogs, but I wish to say that this write-up very pressured me to take a look at and do it! Your writing style has been amazed me. Thanks, very nice post. maine coon cats for sale

    • 189308 posts
    April 27, 2023 3:59 PM EEST

    With our monetary climate just how in which seriously is, To begin with . to arrange the basics of declaring bankruptcy under lack of employment perks. Options approach would be to make it clear how our lack of employment setup effective, precisely what the ordinary means accepting and rejecting conditions, then it include myths received from my own , unbiassed practical experience of what great procedures as well as the usual issues are having declaring bankruptcy under joblessness importance. สล็อตเว็บตรงวอเลท888

    • 189308 posts
    May 2, 2023 9:25 AM EEST

    This is really interesting, You are an excessively skilled blogger. I have joined your rss feed and look ahead to in the hunt for extra of your great post. Also, I’ve shared your website in my social networks! 먹튀검증사이트

    • 189308 posts
    May 3, 2023 12:48 PM EEST

    Amazing blog! Do you have any suggestions for aspiring writers? I’m planning to start my own blog soon but I’m a little lost on everything. Would you propose starting with a free platform like WordPress or go for a paid option? There are so many choices out there that I’m completely confused .. Any suggestions? Bless you! 해외선물

    • 189308 posts
    May 4, 2023 2:30 PM EEST

    Hi! This is my first visit to your blog! We are a group of volunteers and starting a new project in a community in the same niche. Your blog provided us beneficial information to work on. You have done a extraordinary job! เว็บยอดนิยม UFABET

    • 189308 posts
    May 13, 2023 4:50 PM EEST

    I just put the link of your blog on my Facebook Wall. very nice blog indeed..”..: สูตรสล็อต PG ทดลองเล่น

    • 189308 posts
    May 14, 2023 11:24 PM EEST

    Since the enforcement of UIGEA (Unlawful Internet Gambling Enforcement Act of 2006), the USA players have limited options to choose a reputable online casino to play their favorite casino games at internet. Golden casino since its establishment in 2006 has positioned itself as the top online casino that accepts the USA players. What makes Golden Casino the preferred choice among the USA players? เว็บตรงไม่ล็อคยูส ไม่มีขั้นต่ำ สล็อตเว็บตรง

    • 189308 posts
    June 25, 2023 9:29 AM EEST

    Hello, Neat post. There is a problem together with your website in web explorer, might test this? IE still is the market leader and a good section of people will leave out your fantastic writing due to this problem. สล็อตเว็บตรง