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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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Friday, July 25, 2014

At What Temperatures Should Natural Rubber Latex be Stored?

Manufacturer: Under what temperature condition should natural rubber latex concentrate and prevulcanised latex be stored. We are from a temperate country.

John Woon (Senior Latex Consultant): Heat would increase the kinetic energy of the rubber particles resulting in the increase of both the frequency and violence of collisions among the rubber particles which could result in the formation of coagulum.  Heat would also evaporate water and drive away the ammonia in the latex with the accompanying drop of pH and skin formation on the surface of latex.  Drop in pH would also lead to latex destabilisation.On the other hand the stabilising system within the latex could be rendered ineffective when the latex is subjected to freezing temperature.  Hence latex must be protected from frost. The latex is therefore best kept in-door at a storage temperature of between 10 to 30°C.

If latex is stored for more than 6 months, some minor adjustment by adding some soap stabiliser might be required.  Excessive loss of ammnoia in storage tanks and partially emptied drums should be prevented as this could lead to destabilisation of latex ( e.g. if pH has dropped to below 10.0, ammonia solution should be added to bring it to about 10.5).


The latex should be agitated at slow rate periodically to prevent excessive creaming.




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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]

Disclaimer:
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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