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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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Monday, February 28, 2011

Pioneer Chooses Vytex Natural Rubber Latex for Balloons

Vystar announced that Pioneer Balloon, the largest manufacturer of latex  balloons in the U.S., has begun production using Vytex Natural Rubber  Latex in its premium line of Qualatex brand balloons.

Pioneer will work  to increase their global market share with Vytex NRL and will be the  exclusive toy balloon manufacturer using Vytex NRL. After extensive  testing trials, Pioneer concluded that balloons made with Vytex NRL  possessed significant color superiority over those made with traditional  natural rubber latex. As a result, Pioneer has been able to enhance its  current balloon offerings to its extensive client portfolio, which  includes decorators and other balloon professionals.

Friday, February 25, 2011

Trend of Nitrile Latex price

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Tuesday, February 15, 2011

New Clones to Boost Upstream Rubber Ops

Rubber which is a strategic commodity for Malaysia will see its upstream activities being revolutionised with the introduction of high-yielding 1Malaysia rubber clones and latex timber clones by the Malaysian Rubber Board (MRB).

By 2020, the targetted plan was to plant some 500,000ha of rubber in Sarawak and 300,000ha in Sabah.


In 2009, MRB introduced the 1Malaysia clone the RRIM 3001. This clone has a potential latex production of more than 3,000kg per hectare per year and is suitable for planting on a commercial basis including for the rubber forest plantation programmes especially in Sabah and Sarawak,

Monday, February 14, 2011

Natural Rubber Latex Bulk Price - From January 2006 to 10 February 2011

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Sunday, February 13, 2011

Prevulcanised NR Latex (PV) as a Binding Agent for Rubber Crumbs

Manufacturer: I came across your blog site and have looked at it with great interest, and am  wondering whether you would be willing to assist me with some basic information please.
I would like to bind shavings or crumbs of a vulcanized NR compound, to shape and use in a dynamic application. Is it possible to use pre-vulcanised NR latex? Would the adhesion be sufficient, and would it hold together after many cyclical deformations and at temperatures of up to 60 degrees C? (By the way the crumbed compound is formulated to provide high resilience, low CS and low heat build-up).
Conventional moulding of the unvulcanised NR compound is problematic in the application of interest, hence my enquiry.
Also, is it possible to add extra heat stabilizer, e.g. TMQ?
Another possibility is to use a polyurethane binder. However, I like the idea of using NR due to its good dynamic properties. Maybe it is also more cost-effective?
Any assistance regarding the above would be greatly appreciated.
 
John Woon (Senior Latex and Rubber Consultant): Thanks for visiting my site.

Prevulcanised latex (PV) as a binding agent for rubber crumbs has been used successfully for "static" application.

In a dynamic application as in your case, the adhesion between the crumbs might not last long especially when the service temperature is elevated.

The PV itself must be designed to have an inherently good heat ageing resistance otherwise even the addition of a heat stabilizer such as TMQ might not be sufficient although it might help to some extent.

If flexibility is not an issue, you could try adding some quantity of Portland cement but the PV must be well
stabilised with non-ionic surfactant before the addition.

Friday, February 11, 2011

American Chemical Society (ACS) Offers a Rubber Technology Training Award

The Rubber Division, ACS offers a Rubber Technology Training Awards and scholarships for those already in the rubber industry seeking additional education and opportunities for advancement. In addition, the Rubber Division, local Rubber Groups and industry companies recognize and support the need for financial assistance in obtaining a college degree. With this in mind, there are many scholarships available for those students who wish to pursue a degree in rubber technology, polymer science or the chemical profession.

The Rubber Technology Training Award provides a $1,250 stipend to rubber industry employees to allow them to attend the events at a spring or fall Rubber Division meeting in the year they are selected. Events include seminars/workshops, technical presentations, banquets and networking opportunities and expositions. Deadline for application is March 1. The Rubber Division offers two $5,000 undergraduate scholarships to students entering their junior or senior year of for the fall-spring academic year.

Applicants may have a major area of study in chemistry, physics, chemical or mechanical engineering, polymer science or any other technical discipline of relevance to the rubber industry. Each winner receives up to $5,000 to defray educational expenses and be named a Rubber Division Scholar. Deadline for application is also March 1. These Rubber Groups also offer scholarships: Blue Ridge (via Virginia Tech), Connecticut, Detroit, Energy, Fort Wayne, Los Angeles, Mid-Atlantic, Ohio, Southern, Twin Cities and West Michigan. Deadlines vary for these scholarships.

Robinson Brothers Secures EC Funding for SafeRubber Project

The SafeRubber project has received EC funding under the FP7 framework to develop a new, safe, multifunctional accelerator curative molecule which can replace thiourea-based accelerators in the vulcanisation process.

The SafeRubber project, which is led by Robinson Brothers and coordinated by Assocomaplast, brings together a consortium of 12 members from six European countries with a wealth of experience and knowledge in the rubber and plastics industries.

The project partners are focused on developing an innovative solution that will deliver several benefits. This first benefit is an IP-protectable method for producing polychloroprene rubber, with reduces costs associated with health and safety, protecting them from the current dominance of large enterprises. Second, a 90% reduction in the quantities of MgO and ZnO required during vulcanization, achieved through using a multi-functional accelerator, allowing the SME members to compete on cost with Far Eastern suppliers. Finally, the project aims to reduce environmental impact through reduced feedstock (of MgO and ZnO) and effluent hazards associated with the process. 

“We came up with this idea that the ethylene thiourea should be replaced due to its toxicity levels and had to determine the best way to begin that process,” explained Adrian Hanrahan, CEO of Robinson Brothers. “We began with the idea of what molecules and blends of molecules might help us achieve this goal. Since then, a number of partners expressed interest in offering their help to understand what mechanisms should be put in place to prove or disprove our hypothesis.”

Thiourea-based accelerators, in particular ETU, are extensively used in the vulcanization of polychloroprene rubber as they produce high performance rubber cure systems. However, ETU is inherently toxic, being listed as a Category 2 carcinogen under EU classification, and by the IARC (International Agency for Research on Cancer) and EPA (Environmental Protection Agency). The knowledge of this toxicity sparked the interest of Robinson Brothers and a desire to replace the potentially harmful substance. The SafeRubber project has been granted several million Euro in funding and will use the money over the course of three years with benchmarks in pace to ensure progress



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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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