TPE and Sustainable Yoga Mats

• Author:tony
• Release on :2015-10-23
• • 
    

When I wrote my column on acceptable yoga mats, I was missing advice about TPE (Thermoplastic Elastomer), the a lot of accepted actual acclimated in non-natural yoga mats these days. It replaced the ultra-bad PVC and is advised bigger for you, but in my opinion, it’s still not the acknowledgment and cannot be advised a acceptable material.

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I mentioned that I was consulting with a bio-chemist acquaintance (and Ashtanga yoga practitioner) and actuality is what he had to say about TPE:

“TPEs are able compounds that can yield the abode of rubbers or PVC in manufacturing. They are about abundant added abiding and safer than PVC. It looks like their use in the medical industry is exploding for this reason. Here’s a description of one TPE and its medical applications, and addition use [in] orthodontic baby pacifiers. TPEs can aswell be antibacterial application a amount of methods, [and] some of these ability abase PVC into baneful mush. They are aswell acclimated abundantly in toys. [I] don’t see big red flags apropos toxicity amidst the six TPE variants, which is a absolute sign, [and] Greenpeace doesn’t cover it in its baneful pyramid of plastics.

“[However,] a lot of acceptable TPEs are petroleum-derived. A contempo above about-face is the development of TPEs that are not fossil-based, application instead renewable biomass (corn, vegetable oil) and bolt (e.g. polyester). These are boring replacing the fossil-based materials.”

Soft TPUs

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• Author:tony
• Release on :2015-10-22

Prior to the appearance of this program, the softest TPU commercially accessible for cossack applications had a durometer acerbity of about 70A. At this hardness, a sole produced with a TPU is too harder and annealed for a lot of applications. consistent in low abundance and abbreviating blooper resistance. A new ancestors of abstracts has been developed with a acerbity as low as 55A. A lot of soling applications crave acerbity in the ambit of 55 to 65A. The backdrop of three altered TPU grades are apparent in table 1.

These new abstracts accept outstanding chafe resistance. As a reference, a accepted polyurethane elastomer has ethics in agreement of chafe accident about 100 [mm.sup.3]. High superior rubbers affectation ethics amid 120 and 180 [mm.sup.3]. All the new TPU grades consistently accept chafe accident ethics beneath 80 [mm.sup.3].

Another outstanding and important aberration amid TPUs and added abstracts is their angle life. Using a accepted angle activity test, TPUs beat the already adequate polyurethane abstracts by a agency of two or better. It is important to apprehension that as the acerbity of these abstracts decreases, their elastomeric behavior improves. As apparent in amount 2, animation increases steadily with abbreviating hardness. Thus, softer TPUs accept beneath addiction to blow activity and could cause continued appellation failure. Beneath activity amusement after-effects in beneath fatigue abortion as abstinent by angle life.

Good Tack Thermoplastic Elastomer for Sucker

Good Tack Thermoplastic Elastomer for Sucker

TPUs: new material options for high performance footwear

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• Author:tony
• Release on :2015-10-21

Polyurethane soling abstracts were alien to the cossack industry in the backward 1960s and acquired advanced accepting in the 1970s (ref. 1). Because of their altered versatility in agreement of acerbity and body range, accompanying with accomplished concrete backdrop and aberrant durability, these abstracts accept acquired accepting in applications area achievement is important. This versatility has accustomed shoe manufacturers to advance a array of designs and soling concepts for a amount of applications. These cover bifold body versions, low weight midsole wedges for able-bodied cossack (refs. 2-4) and a array of soles, inserts and insoles of altered weight and adaptability for actualization footwear.

Almost after exception, the adopted processing adjustment for polyurethane elastomers in the accomplished has been via a two basic acknowledging process, area the final commodity is formed in-situ either through absolute bang or through an accessible cast casting operation. While this adjustment of assembly is acutely able and after-effects in abstracts of acceptable superior and performance, it has some inherent drawbacks that do not acquiesce the elastomer to ability its ultimate achievement in agreement of backdrop and allotment appearance.

Thermoplastic polyurethane (TPU) elastomers, on the added hand, because of their adjustment of assembly and conception approach, are able of accomplishing backdrop that are decidedly college than those of aqueous molded polyurethane elastomers. In the cossack industry, TPUs accept been acclimated for a continued time in specialized segments area outstanding achievement is needed. For applications such as sports shoes, ski boots and in-line skates, TPUs accept been the abstracts of best due to their accomplished chafe and cut resistance, top backbone and outstanding angle activity even at sub-freezing temperatures. In added accepted applications such as top achievement soles, TPUs commonly suffered from several drawbacks that bound their bazaar penetration. These drawbacks included sole weight, actual acerbity and cost.

Automotive / Transportation

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• Author:tony
• Release on :2015-10-20

Thermoplastic Vulcanizates, or TPVs, accept been steadily accepting acceptance in the automotive industry. Designers, engineers, and actual specifiers accept begin that TPVs can advice them achieve a amount of goals if compared to acceptable materials, such as EPDM rubber. These allowances include:

Reduced allotment weight - beneath weight helps advance ammunition efficiency

Enhanced allotment achievement - bigger crumbling characteristics and attrition to acute acclimate advice advance all-embracing car quality

Lower arrangement cost

Increased recyclability - locations fabricated from TPVs are 100% recyclable

Contains no plasticizers such as phthalates

Many grades backpack approvals by the above auto makers

Reed Rubber's seals are begin on cars from GM, Ford, Chrysler, Toyota, and Honda, as able-bodied as several European models. Features such as co-extruding, and abacus heat-activated band or slipcoat, action abounding allowances not accessible to accepted thermoset seals.

Safe Sex Toys

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• Author:tony
• Release on :2015-10-19

TPR (thermo artificial rubber) is a polymer alloy that has a thermoplastic character. TPR is hypoallergenic, controllable and phthalate free. TPR is beneath absorptive than “Real Feel” / Cyberskin but it is added absorptive than Silicone. Since it is still porous, it’s recommended that a condom be acclimated with sex toys fabricated of TPR to anticipate the advance of bacilli and added communicable agents. TPR cannot be antiseptic but TPR sex toys can be bankrupt with balmy soap and baptize or with antibacterial sex toy cleaners. Unfortunately, this actual cannot be antibacterial by boiling.

Similar to TPR, TPE (thermo artificial elastomer is college superior than clabber rubber. An elastomer is a admixture that does not cover phthalates. Elastomers alpha out bendable and accept artefact added to accomplish them harder. This artefact is again removed by top exhaustion so that there are no balance hardeners.

Compatible with: Water-based and silicone lubricants.

Feel: Smooth, adaptable and flexible.

Smell: some adaptable smell.

Taste: Slight actinic taste.

Contains: latex.

Medical Grade Thermoplastic Elastomer for Catheter

Medical Grade Thermoplastic Elastomer for Catheter

Which TPE to Use?

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• Author:tony
• Release on :2015-10-17

Below are listed the advantages of anniversary chic of TPE. Using these guidelines, abeyant users can bound and accurately attenuated the blazon of bendable elastomer best ill-fitted for their application:

Producers of TPEs are getting pressured to not just accommodated artefact end use specifications, but to beat them. While beyond TPE producers are absorbed to wish to advertise off-the-shelf grades, abounding suppliers and distributors, abnormally abate absolute ones, are added absorbed to action grades that absolutely bout or beat the needs of the accomplished product. Thus, the designer, banker or OEM that wants to get abounding amount out of a TPE, should attending to the supplier that can action a abounding ambit of abstruse services.

Designers and manufacturers who haven’t yet “caught on” to the inherent abbreviate and continued appellation allowances of TPEs are missing out on compounds that are accepted to abide to abound in acceptance some 6% or added per year, with an accepted absolute acceptance common of added than 13 billion pounds. With pressures to not alone cut costs and acceleration up design-to-part cycles, designers and at the actual least, automotive OEMs and Tier One suppliers can account by alms apparatus that are lighter in weight, advance ammunition economy, enhance performance, abate arrangement costs and advance recyclability. Newer blaze retardant grades accomplish articles safer and beneath chancy to the environment.

The views, opinions and abstruse analyses presented actuality are those of the author, and are not necessarily those of UL, ULProspector.com or Knowledge.ULProspector.com. While the editors of this website accomplish every accomplishment to verify the accurateness of its content, we accept no albatross for errors fabricated by the author, beat agents or any added contributor. All agreeable is accountable to absorb and may not be reproduced after above-mentioned approval from Prospector.

A Brief History of Elastomers

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• Author:tony
• Release on :2015-10-15

Before TPEs (thermoplastic elastomers), there was thermoset rubber. But there was a charge for a bigger blazon of artefact – one that could access allotment assembly (lowering aeon times), action lower weight, be calmly colorable, be bendable or rigid, be recyclable, be produced over added abstracts in a two attempt action (overmolding), and accord to lower allotment costs.

Enter TPEs in the 1970’s on a accumulation scale, anon to be followed by added bendable elastomers that anon fell beneath the accepted class of TPEs – TPOs or thermoplastic olefins, TPVs or thermoplastic vulcanizates, TPUs or thermoplastic polyurethanes and dozens of new grades that were and are artlessly ‘alloyed’ articles comprised of altered components. And, anon thereafter were grades that could not alone be bang molded, but aswell extruded, draft molded or thermoformed.

Products started actualization on the bazaar with a new attending and feel, enabling manufacturers to upsell their articles to address to new markets – the admirable ability assignment comes to apperception – the aforementioned basal assignment belly over the years, but ‘reintroduced’ with new, visually-appealing grips. And again came new and bigger articles for appurtenances such as antic equipment, automotive seals and hoses, medical goods, apparatus parts, window and ceramics seals, wire and cable applications and hundreds of added articles in dozens of markets. Thanks to TPEs, they not alone looked bigger and could be candy better, but they performed bigger and offered a array of textural and finishing options. Depending on the appliance and the product, they were softer or harder, added aggressive to chemicals and oils, added durable, able bear far college and lower temperatures, and ultimately would and could endure longer

Antiskid Thermoplastic Elastomer for Badminton Racket

Antiskid Thermoplastic Elastomer for Badminton Racket

Advantages of SBS Modified Asphalt

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• Author:tony
• Release on :2015-10-14

Buildings today absorb lighter-weight structural abstracts than those congenital years ago. Contemporary beam systems should, therefore, accept the adeptness to bear the added substrate movements and deflections. Durability of the roof can be assured through acceptable planning and by the actual blueprint and accession of the waterproofing system.

Asphalt is still the best-known waterproofing material. However, it has poor crumbling characteristics, becomes breakable in algid weather, is aqueous in hot weather, and has little attrition to fatigue. Elastomeric compounds such as SBS (styrene-butadiene-styrene) essentially advance these properties. SBS elastic is adjustable and has the anamnesis to acknowledgment to its aboriginal form. The accession of SBS elastic to city increases the breeze characteristics and improves the low-temperature adaptability and fatigue attrition of beam asphalt. The end artefact is a high-performance, 2-3 ply system.

High Toughness Thermoplastic polyurethanes for Condom

High Toughness Thermoplastic polyurethanes for Condom

Sex Toy Material-TPE

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• Author:tony
• Release on :2015-10-13
• • 
    

TPE (thermoplastic elastomer) is a thermoplastic polymer alloy that can be bogus into a ambit of textures. TPE is beneath absorptive than Cyberskin but added absorptive than Silicone.

Example

A array of top superior sex toys are fabricated of TPE. This top superior actual is acclimated for abounding of our best sex toys. A few examples of sex toys fabricated of thermoplastic elastomer are the Bonsai Joy , SinFive Insignio and the Ultra Perfection. TPE has abounding added uses as well. Some examples are auto airbag covers, yoga mats and medical catheters.

Allergy Or Adulteration Warnings

TPE actual is hypoallergenic and phthalate free. No solvents or acrylic are acclimated in the assembly action This is an accomplished actual for humans with actinic sensitivities and or accept allergic reactions to added materials. Anyone absorbed in a sex toy fabricated of top quality, adulteration chargeless actual cannot go amiss with a toy fabricated of TPE.

Cleaning Recommendations

It is best to apple-pie TPE developed toys with antibacterial sex toy cleaners or balmy baptize and balmy soap.

Lubricants

Use alone baptize based lubricants with TPE. We acclaim application a condom if administration your developed toy fabricated of TPE.

Environmentally friendly Thermoplastic Elastomer for Vibrating Egg

Environmentally friendly Thermoplastic Elastomer for Vibrating Egg

How does shrinkage affect TPEs?

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• Author:tony
• Release on :2015-10-09

Shrinkage

As TPEs cool from their molten state, the molecules align with each other and shrink the overall size of the molded part. While usually only in the thousandths of an inch per inch range, shrinkage can dramatically affect the molding and removal of the part as well as the appearance of the final part.

If shrinkage is uneven, a part meant to lay flat can bend or warp. Additionally, in applications with tight tolerances, unexpected shrinkage may affect the fit of a part in an assembly.

For these reasons, shrinkage generally must be taken into account in production.

Part Removal

When parts contain cores or cut-outs, as the elastomer shrinks it can tighten around the tooling, making removal difficult. Mold design, mold surface finish and processing conditions can lessen this effect, and make even automatic removal possible.

Molding Conditions

Molding conditions can dramatically affect the amount and nature of shrinkage. Going quickly from a state of high stress to one of low stress can increase the amount of shrinkage. Quick cooling of a part as well as very high injection speeds or pressures can also affect shrinkage. Consult GLS for more information on how molding conditions affect shrinkage.

Design Considerations

Due to shrinkage, a mold must be cut larger than the desired size of the part. Generally, exact shrinkage values cannot be known until a specific part is molded, so it is always best to be conservative and use a prototype mold if at all possible.

As with other elastomer properties, shrinkage often varies with the direction of polymer flow. Gate location will determine the direction of flow into the part and thus the shrinkage direction. Also, some TPEs are more isotropic than others, meaning that they shrink more in one direction than another. This must be taken into consideration when designing the mold. Consult your TPE supplier for more information on how design considerations affect shrinkage.

High Toughness Thermoplastic Elastomer for Film

High Toughness Thermoplastic Elastomer for Film

Benefits of TPEs compared to Thermoset Rubbers

• Author:tony
• Release on :2015-10-08
• • http://www.china-tpe-material-supplier.com/news/15100808385195.html

Benefits of TPEs compared to Thermoset Rubbers

• Design flexibility
• Lower fabrication costs
• Shorter processing times
• Scrap is fully recyclable
• Consistency of product
• Can be blow molded
• Can be thermoformed
• Lower consumption of energy
• Simpler processing
• Better control of product quality
• Broader range in product density
• Lower per-piece finished part cost
• More environmentally friendly
• 

Medical Grade Thermoplastic Elastomer for Drug bottle

Medical Grade Thermoplastic Elastomer for Drug bottle

Regulatory Terms of TPE

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• Author:tony
• Release on :2015-10-06
• • 
    

Regulatory Terms of TPE

Food and Drug Administration (FDA)

Under the code of Federal Regulations, Title 21, Chapter 1, Subchapter B, the US Food and Drug Administration provides detailed specifications regarding the requirements for acceptance of various polymers and TPEs for intended use in food applications. When a product is classified as an "FDA grade" material, it designates that only 21 CFR, parts 170-199 approved materials are used in its formulation.

National Sanitation Foundation (NSF)

The National Sanitation Foundation is known for the development of standards, product testing and certification services in the areas of public health safety and protection of the environment. NSF certification programs are accredited by the American National Standards Institute (ANSI/RAB), The Dutch Council for Accreditation (RvA) and the Standards Council of Canada (SCC).

Testing alliances allow for NSF testing acceptance in other regions of the world as well. Some of the alliances include Intertek Testing Services (ITS), KIWA N.V. in The Netherlands, Canadian Standards Association (CSA) and QMI in Canada, and the Japan Gas Appliance Inspection Association (JIA) in Japan, to name a few.

Typical applications requiring NSF certification are potable water applications, water treatment systems, restaurant services and plumbing.

United States Pharmacopeia (USP)

USP specifications cover blood and body fluid compatibility/contact applications. USP tests are designed to provide information on biological effects of polymer materials used in containers. There are six classes into which a polymer may be placed, depending on its performance in specific USP biological tests. Each increasing class number, from I to IV, requires that a polymer be subjected to additional tests, with each level using more extraction vehicles than the previous class. There is also a range of increasingly higher extraction temperatures which may be selected to further characterize the material.

Underwriters Laboratories (UL)

Underwriters Laboratories is an independent, not-for-profit product safety and testing certification organization based in the US. Common tests are UL-94 (vertical and horizontal burn test further categorized under HB, V0, V1, or V2), VTM (thin film burn test) and VW (vertical wire burn test). Typical applications covered by UL specifications include hand-held electronics, business machines and appliances.

Military Specifications (MIL)

Certain US military and non-military applications may require military specifications. Such specifications include areas such as fungal growth, dimensional stability and many other material properties. In the TPE world, applications requiring military specs include umbilical cables, field-use flexible cords, underground cable and ship-to-shore cable.

Canadian Standards Association (CSA)

CSA is the principle Canadian standards body that sets performance criteria and test methods in certain applications. This is a body similar to that of ASTM, UL, DOT, FDA and MIL in the United States.