Halogen-free Flame Retardant Cyclotriphosphazene and Phosphoramidate Chemistry for Cotton, PET and PP

Halogen-free Flame Retardant Cyclotriphosphazene and Phosphoramidate Chemistry for Cotton, PET and PP

Ahmed El-Shafei
Fiber and Polymer Science Program
College of Textiles, North Carolina State University, Raleigh, NC 27606

Two novel generations of halogen-free phosphorus-based flame retardant monomers were developed and evaluated on cotton, nonwovens PET and PP. The first generation was based on phosphoramidate and the second on cyclotriphosphazene chemistry. Each monomer was graft polymerized into the substrates thermally or with the aid of a UV flood curing system. The influence of monomer concentration, photoinitiator concentration, UV exposure time and proximity of the specimen to the UV lamp on coating yield was evaluated through a design of experiment utilizing SAS JMP® Pro 10.

It was shown from the vertical flame test that cotton and nonwoven PET and PP treated with the phosphoramidate chemistry furnished self extinguishing properties with no melting or dripping in the case of PET of PP while cotton treated with monomers derived from cyclotriphosphazene chemistry did not ignite. Instead, a significant char structure formed in the area that was exposed to the flame. The structure-property relationships of monomers derived from the phosphoramidate and cyclotriphosphazene chemistry and flame retardancy mechanisms of the grafted polymers on the substrates will be discussed.

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How the College of Textiles is Enabling Future Leaders of the US Textiles Complex

Speaker: David Hinks
Presentation Title: How the College of Textiles is Enabling Future Leaders of the US Textiles Complex

Enabling the future success of its graduates is the single most important mission of a university. For those entering an industry – any industry – a key challenge is to help prepare students for a career environment that is so rapidly changing that no one can predict what it will look like in the mid- to long-term. In the case of textiles, rapid changes in consumer purchasing habits, demand for new differentiating technologies, improved environmental impact and reduced time to market, and revisions to government policies are driving changes in the industry.

These developments are providing new opportunities for adaptable graduates with strong technical education, high cultural competence, critical thinking skills and emotional intelligence, as well as a knowledge of, and appreciation for, the interplay of art and design with science, technology, engineering and mathematics.

New graduates at all levels can expect to see the course of their careers take more unexpected directions than in the past and they should be equipped to be as flexible as possible. Also, professionals without a formal textiles education are constantly entering the industry and these, too, need training. This is particularly relevant given the aging textiles workforce and the need for adequately prepared mid-career employees as well as new talent.

In the College of Textiles, in addition to serving the textiles, apparel and related industries by providing future leaders and engaging in research, we provide comprehensive professional education, product development and testing services via the Zeis Textiles Extension department. The professional education program has value to individuals without formal education in textiles, because in order to be successful in the industry they must learn the fundamentals of textiles. Companies have cited the multi-faceted support provided by the College as a key driver in their investment decisions in North Carolina and the US.

Discussed are approaches to enable the success of undergraduate and graduate students, as well as professionals entering the textiles industry without formal textiles training. Also discussed is the important role for strong industry-university partnerships. With strong cooperation, the entire US textiles industry can be enhanced and enriched for the betterment of society.

David Hinks
College of Textiles, North Carolina State University, 1020 Main Campus Drive,
Raleigh, NC 27695, USA

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Active Textiles and Encapsulated Finishing Chemicals

Speaker: Troy Massey
Presentation Title: Active Textiles and Encapsulated Finishing Chemicals 

ACTIVE TEXTILES mean clothes that provide care, freshness, comfort and protection for you. Imagine that every time you put on your favorite garment it actually takes care of you. The principle is simple: Build active ingredients into the fabric of clothing so that with the natural movement of your body, the active ingredients are released. The active ingredients may keep your clothes fresh, moisturize your skin, protect you against mosquitos or protect you from harmful UV rays.

Microencapsulation is a very effective way of making sure active ingredients are released from your garment to achieve the desired effect. Microcapsules are infused and bound to fabrics to allow for various release rates depending on the intended effect (moisturizing, fragrance release, mosquito repellent). This is achieved by traditional textile application methods such as padding, exhausting and spraying. So, no special equipment is needed.

The result of bringing together leading fabric technology, decades of experience with health and beauty products and the power of nature itself, ACTIVE TEXTILES bring new possibilities to your fashion concepts and collections.

When are you going to get ACTIVE?

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The Right Fluorine Free Durable Water Repellent for Your Application

Speaker: Magali Brown, Ph.D., NICCA
Presentation Title: The Right Fluorine Free Durable Water Repellent for Your Application

There are many difficulties that the Textile Industry is currently facing with the change of going from fluorinated chemistry to a fluorine free chemistry. There is also still a stigma regarding the performance of PFC-Free Durable Water Repellent due to the first generation of products was not reaching the water repellency level of C6 and had no oil repellency. The latter is still true but the water repellency performance is now on par with C6 as long as the textile material is adequately prepared to receive the right PFC-Free DWR finishing.
In that regard NICCA has spent a lot of efforts developing PFC-Free DWR that meet the multiple requirements that the Textile Industry and especially the Apparel Industry has been looking for. This presentation will explain what these chemistries are, how to choose the right one and how to make them perform the right way.


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Environmental and Health Considerations for Stain-Resistant Fabric

Speaker: Hardy Sullivan
Presentation Title: Environmental and Health Considerations for Stain-Resistant Fabric

Spill- and stain-resistant finishes impart useful properties to many types of fabric. In the case of upholstery, stain-resistance extends the useful life of fabric, reducing the need to produce replacements and improving customer satisfaction. However, apparel and home furnishing companies selling these fabrics are under attack from non-governmental organizations (NGOs), including Greenpeace. These organizations claim these products are “linked” to persistent, bio-accumulative and toxic fluorinated chemistries found in the environment, namely PFOS and PFOA. The objective of this presentation is to review the criticisms from NGOs and shed light on ways fluorinated repellents actually reduce manufacturers’ environmental footprint. Considerations include health, environmental contamination, product performance, and customer satisfaction.

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