Talk:Vulcanization

message: The list on vulcanisation systems is interesting, it indicates a generalistions of the concept to other elastomer crosslinkers. However, information is needed on which systems these other crosslinkers are used and how. Is deuce really something used for vulcanisation and what is it?  — Preceding unsigned comment added by 150.227.15.253 (talk) 10:08, 24 October 2012 (UTC)
thread_title:  Vulcanisation process 

message: www.geocities.com/epdmrecycle
This doesn't look very encyclopaediac. Needs to be re-written to sound less like a book for teenagers to interest them in science....mmmmmmm GEEK.
'Kipedia said vulcanized was the way to go. But I dang old knew better. Galvanized, galvanized, galvanized, that's what I always say!
i think there is some mix up here as vulcanizing and curing are 2 different things, to vulcanize is to bond rubber to metal, rubber, etc this is the process using heat and preasure  where as to cure rubber is heat and preasure without the bonding ability. the process of vulcanizing is used to join conveyor belts and lag pulleys etc which includes curing in this process.  —Preceding unsigned comment added by 135.196.89.56 (talk) 11:25, 13 March 2009 (UTC)
thread_title:  Vulcanized EPDM Scrap 

message: I have extracted the following: -
'The history of vulcanized rubber goes back to prehistoric times. The name "Olmec" means "rubber people" in the Aztec language. Ancient Mesoamericans, spanning from ancient Olmecs to Aztecs, extracted latex from Castilla elastica, a type of rubber tree in the area. The juice of a local vine, Ipomoea alba, was then mixed with this latex to create an ancient vulcanized rubber as early as 1600 BC !
Furthermore,  the Aztecs and Mayans created a non-vulcanized rubber by extracting natural rubber latex from the Hevea brasiliensis trees in the local forests. They formed the latex into balls, and played the Mesoamerican ballgame with the resulting bouncy balls. The losers were sometimes ritually executed.
and
From these early days to'
Due to the fact the reference cited for these large claims was a document with NO academic value what so ever, it is merely a module outline for a course that claims the above, but does not give any citations as to it's state of claim.  Thus, either find additional references (given the significance of the claim) or we'll leave it here in limbo until someone stumbles across something to reinsert it or extrapolate. 211.30.71.59 02:59, 26 October 2006 (UTC)
replies: text: I think there needs to be a historical section that DOES link back to the article on Goodyear at some point. You can't predict where people will start reading and without links like this, they can miss important information.
100.15.127.199 (talk) 15:56, 19 October 2020 (UTC)
thread_title: History

message: After making the changing discussed immediately above, I reviewed the article further and find that this confusion is more deeply imbedded in this article.  The entire first paragraph equates vulcanization with any type of curing of sulfur - which is not the case.  Curing of rubber with some process has indeed been around for long before the Europeans discoved rubber, but the term vulcanization was coined specifically to refer to the curing process that involved the addition of sulfur at high temperatures. —Preceding unsigned comment added by Hubbardaie (talk • contribs) 
The wikipedia article on rubber states this correctly: "While the ancient Mesoamericans did not have vulcanization, they developed organic methods of processing the rubber with similar results".  Although the use of the word "similar" is loose here - since proper vulcanization makes a much more durable product - it is true that the ancient process improved the durability of natural rubber. —Preceding unsigned comment added by Hubbardaie (talk • contribs) 
: We need to come to some agreement on this topic.  The entry on curing is woefully inadequate.  The vulcanization article is only applicable to sulfur curing as written.  It is not clear in colloquial use tha vulcanization only refers to sulfur cures. Delmlsfan 00:48, 26 September 2007 (UTC)
thread_title: vulcanization is not synonymous with curing

message: I checked three sources: "the Vanderbilt Guide to Rubber Compounding"; Morton's "Rubber Technology"; and the Rubber Division's "Basic Rubber Compounding".  In all three the word vulcanization is defined as curing (crosslinking) all types of rubber, not just sulfur cures.  Vulcanization was indeed coined for sulfur crosslinking, but has expanded beyond its original definition. Delmlsfan 23:06, 26 September 2007 (UTC)
thread_title: Vulcanization IS Synonymous with Curing

message: There appears to be no page detailing room-temperature vulcanization. The page RTV includes this as a meaning, but simply describes it in one sentence. Perhaps it should get its own page or else be described more here. —Ben FrantzDale (talk) 14:49, 14 January 2008 (UTC)
thread_title:  RTV 

message: the mesoamericans did indeed add sulfur to the latex to make their balls  —Preceding unsigned comment added by Adrian lugo18 (talk • contribs) 04:12, 10 April 2009 (UTC)
thread_title:  mesoamerican vulcanization process 

message: This article relies to much on the use of the word "very". Perhaps, someone would like to find more descriptive words, or arrange sentences to reduce, or eliminate the use of the word very.  —Preceding unsigned comment added by 99.253.12.31 (talk) 03:10, 25 May 2009 (UTC)
replies: text: I copy edited most of them out. Wizard191 (talk) 12:13, 25 May 2009 (UTC)
thread_title: Too much "very"

message: An entire paragraph of this article read like an investment prospectus, touting company names with lots of peacock terms. I removed it.
Please delete any new content resembling corporate spam.--Bodybagger (talk) 03:20, 13 January 2010 (UTC)
thread_title:  Unencyclopedic content, corporate advertising, and spam 

message: There is no Shehan Massachusetts. Some one needs to determine where he lived. 
71.126.224.3 (talk) 18:34, 31 August 2010 (UTC)
thread_title:  Goodyear - Shehan Massachusetts 

message: If native american populations used rubber for centuries before anyone else, how can it have remained a "curiosity" in the "western" world? Maybe whoever wrote it meant Europe.  —Preceding unsigned comment added by 187.53.125.90 (talk) 02:29, 10 April 2011 (UTC)
thread_title:  "Western world"? 

message: Is it true that vulcanized is produced using animal fat?
And if it is can it be edited in somewhere?  — Preceding unsigned comment added by 80.6.11.142 (talk) 00:20, 29 January 2012 (UTC)
thread_title:  Animal fat? 

message: Under Vulcanization methods it says "A variety of methods exist for vulcanization.The economically most important method (vulcanization of tires) uses high pressure and temperature". This suggests that the heat and pressure alone are used vulcanize the tires. Am right in thinking that a curative needs to be added to the mix first and the heat and pressure are used as a catalyst to speed up the vulcanization process and mold the tires? Richerman   (talk) 18:04, 29 November 2013 (UTC)
replies: text: Yes - a curative agent (such as sulfur) is almost always required, and the purpose of heating is to activate the chemistry between the curative agent and the polymer.  The purpose of the applied pressure is to avoid the formation of "blow" or voids in the rubber that can form due to volatilized gases.  An example of crosslinking without heat and pressure would be radiation-curing, but this is a tiny niche compared to the more traditional process.  See 
*M. R. Krejsa and J. L. Koenig (1993) A Review of Sulfur Crosslinking Fundamentals for Accelerated and Unaccelerated Vulcanization. Rubber Chemistry and Technology: July 1993, Vol. 66, No. 3, pp. 376-410.
doi: http://dx.doi.org/10.5254/1.3538317
*D. S. Pearson and G. G. A. Böhm (1972) The Radiation Curing of Elastomers. I. Physical Strength. Rubber Chemistry and Technology: January 1972, Vol. 45, No. 1, pp. 193-203.
doi: http://dx.doi.org/10.5254/1.3544699
AresLiam (talk) 19:35, 29 November 2013 (UTC)

text: Thanks for that, I've edited the sentence to make it clearer. Richerman   (talk) 19:54, 29 November 2013 (UTC)
thread_title:  Vulcanization methods 

message: Just curious how much of this article I should trust after reading the part in 'Recycling' that estimated North American tire waste:
.
"...North America alone generates approximately 300 million waste tires annually...".
.
I'm going to go with 'No', even though it is merely highly improbable.  The United States has well over 3/5ths of the population of North America and per capita drives far more than North America. The US in total drives about 7 billion miles annually.  Being very conservative and doubling that for all of North America and adding another billion for calculation ease, yields 15 billion miles annually.  Assuming 4 tires per vehicle ( I know some have more, but the average is very close to 4, and easily compensated for by the annual miles overage margin) yields 60 billion annual tire miles.
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Tires would have to be lasting only 200 miles, on average, for North America to be creating 300 million waste tires annually.  Clearly this figure is not based in reality, or even fabricated with rationality.
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I can safely assume the other tire waste numbers are similar fabrications, but how far should my distrust extend? the section?  the entire article?  Any article that starts with the letter 'V'?
.
70.171.44.124 (talk) 13:20, 24 January 2014 (UTC)
replies: text: I agree that these statements are probably way off.  The claims were unsupported.  These articles take time to develop, and some embryonic articles in Wikipedia consist of wishful thinking or tangential information.  I don't know why tire recycling topic is even in an article about vulcanization because I don't think that the process can be reversed.  Thanks for noticing the problem.--Smokefoot (talk) 13:48, 24 January 2014 (UTC)
thread_title:  How much of this article is off the cuff speculation? 

message: There's an image of a remote contol pad with a caption that suggests that it's an typical example of "LSR moulding". Neither the Vulcanization article NOR the Silicone Rubber Keypad article reference this alleged "LSR moulding" technique in any way. Anyone care to explain or remedy this situation? Illini407 talk 05:45, 11 October 2015 (UTC)
thread_title: Keypad image

message: I think this article would do well to have a picture of a sample of traditional vulcanized rubber--you know, the stuff Goodyear developed in the 19th century. I know everyone's seen it, but it seems kind of weird that the only photo on the page is of a silicone keypad. Lockesdonkey (talk) 20:40, 7 October 2017 (UTC)
thread_title: Photo request

message: A lot of duplication with Sulfur vulcanization so I suggest they should be merged, probably under the simple title. Chemical Engineer (talk) 20:06, 17 May 2023 (UTC)
thread_title:  Suggested merge