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JW Latex Consultants (and Rubber Consultants,乳胶顾问) offer solutions to your problems in Natural Rubber latex and Synthetic Rubber latex processing and the manufacturing of latex products (condoms, catheters, medical gloves, baby teats and soothers, toy balloons etc) Quick answers through e-mails are possible at reasonable cost.

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Send Your Enquiry and Orders To: woonsungliang@yahoo.com.sg

Problem Solving Through E-Mails with John Woon Latex Consultants Is Possible
可以通过电子邮件与JW乳胶顾问来解决问题

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Sunday, October 13, 2013

Selecting Natural Rubber Latex Compounds for Slingshot Bands

Student:  I am a PhD student in organic chemistry. My hobby is sling shooting, there are many slingshot clubs and tournaments in Europe.

Over the last years, it has become more and more difficult to find rubber sheetings that are suitable to craft long lasting slingshot bands from. I believe that the modern vulcanization packages which are used to create most latex sheeting offer advantages in the manufacturing process, but diminish the dynamic properties of the product.

I therefore want to conduct a few experiments in my laboratory, and ideally come up with a possibility to start small-scale production of a rubber sheeting that can supply us sling hooters with good rubber bands - and would be very grateful if you could answer me two questions:

- Am I right to assume that rubber with long sulfur crosslink chains has a better rebound elasticity than rubber types made with strong sulfur donors?
-Does prevulcanisation of the latex affect break elongation and resilience of the final product?

John Woon (Senior Latex Consultant): Generally, polysulphidic crosslinks (i.e. long sulphur crosslinks) give higher tension set and hence lower elasticity. On the other hand, with an EV system (Efficient vulcanization) with the use of sulphur donors, one gets better elasticity. However, EV system gives lower tensile strength. Hence it is advisable to take the middle road, i.e. Semi-EV system.

Generally PV gives higher elongation at break and lower resilience compared to a good postvulcanisable latex compound. However, the actual elasticity properties also depend on the curative recipes used for making the prevulcanised laetx (PV).

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What has the bouncing ball to do with tyres?

Latex Gloves Educational Articles from the Malaysian Rubber Export Promotion Council

How do you select your medical gloves?

Rubber Chemicals: Carcinogenicity, Mutagenicity, Clastogenicity.

Why is Compression Set measurement important?

Assessment of Latex Stability

Joule Effect

Poor Flocking Quality Of Household Gloves

Creaming of Latex

What is Vulcanization?

History of Latex Dipped Products

Applications of Prevulcanized Latex

Defoamer Creating Havoc in Glove Factory

Problems With Milling Rubber Chemicals

Medical Gloves From Guayule Latex

Introduction to SMG Gloves

 

 

Click on The Following Links to Read More Articles:

[Advantages of Vulcanization] [Applications of PV Latex] [Bacteria and Latex] [Chemical Toxicity] [Cross-Linking Density] [Biodegradability] [Black Articles] [Blooming] [Bouncing Ball] [Compression Set] [Condoms] [Creaming] [Defoamer] [FDA] [Fatty Acid Soaps] [Flame Retardant] [Flocking] [Food Packaging] [Glove Demand] [Glove Selection] [Guayule Latex] [History of Gloves] [Joul Effect] [Latex Stability] [Latex Thread] [Milling Problem] [MREPC Articles] [Nano Polymer Particles] [Nano ZnO] [Polychloroprene] [REACH] [SMG] [Storage Hardening] [Vulcanization] [Vytex] [Yulex]

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The information and data contained in this site are believed to be accurate and reliable. However it is the responsibility of the visitors and readers to satisfy themselves that the information is workable under their own processing conditions. Hence the owners of this site make no warranties concerning the suitability of the information given in this site.

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