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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Transparent Rubber Shoe Soles
Manufacturer: We are manufacturer of rubber parts for the construction of shoes. Our latest project is to develop a suitable compound for transparent rubber shoe sole based on natural rubber with good abrasion resistance. I understand from others in the rubber industry that you could help us in terms of choice of rubber and additives.
John Woon (Senior Latex Consultant): You should start with pale crepe as your base rubber. To have reasonable abrasion resistance, a good choice of filler is precipitated silica since you cannot use carbon black. For better processibility and molding in terms of rheology, magnesium carbonate could help. Light coloured mineral oil would also improve the transparency.
Rough Surface of Extruded Staioners' Rubber Bands
Manufacturer: We are manufacturing stationers' rubber bands using dry rubber extrusion process but have been experiencing undesirable surface roughness persistently. All attempts in reformulation and process changes are to no avail. Hope you can help us. We've sent you our formulations.
John Woon (Senior Latex Consultant): Thanks for sending me your formulations which helped me in my diagnosis of your problem.
You can easily overcome the problem by either switching your SMR to SP 20 or blending both.
SP means "Superior Processing Rubber" made form mixing vulcansied latex with normal latex at different ratios before the latex blend is coagulated to obtain the dry rubber. It has superior processing characteristics and good dimension stability which are ideal for calendering and extrusion processes. The extrudates would also show a smoother surface.
SP 20 indicates that 20% of the latex blend is vulcanised latex.
Poor Flocking Quality of Household Gloves
Manufacturer: We are household gloves manufacturers. We are struggling with the quality of our flocke-lined gloves due to poor flock pick-up.
John Woon (Senior Latex Consultant): Your latex formulation for the adhesive layer should be designed to ensure the latex does not flow excessively and also there is a good latex-pick up to receive the flocks and hence the addition of a thickener is necessary. Also your surfactant system much be designed to ensure that there is no premature gelation of the latex otherwise the adhesion of the flocks to the latex is poor.
Governments to Construct Rubberised Roads
KUALA LUMPUR: The Malaysian government, in a
bid to shore up natural rubber prices, will construct rubberised roads,
says Plantation Industries and Commodities Minister Datuk Douglas Uggah
Embas.
"We should increase the use of rubber and the government is targeting to
utilise 10 per cent of total rubber production this year," he said,
adding that Indonesia and Thailand have also agreed to do the same..........
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