Pinfa Newsletter-N° 16

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Flame Retardant (FR) Water-Based Acrylic Polymer for Textile

An Israeli SME has developed a flame retardant water-based acrylic polymer for various applications, mainly in textile & paint industry. Advantages over those on the market include environmental friendliness, transparency, easy incorporation in various materials, good compatibility & pH-stability etc. Looking for industrialists intending to solve fire resistance problems to meet the standards requirements applied in their countries.

In order to give properties to their mixtures / compositions, current textile and paint industry use the compounds, which contain chemically non-bound bromine.
In view of environmental protection, such mixtures are dangerous for their ability to release bromine into environmental surrounding.The company has developed and offers a flame retardant environmentally friendly mixture (polymer composition) containing a newly developed polymer with chemically bound bromine. This flame retardant (FR) polymer composition gives the user an opportunity to pass local standarts in each country with the ease of a regular acrylic binder – so, the product can be used as a regular binder in the textile and paint industry. This property of the polymer composition is unique and gives the user full flexibility to choose both substrate and durability of the application. The product is aiming to the finisher of the textile industry and to varnish producers in need of a FR properties. The polymer composition is patent protected around the world.
The company is well established and has an experience of over 25 years in polymer developments, production and distribution. The company strives to develop new nano materials with special properties under the concept of “smart carrier”.

Innovative Aspects
1. Universal water-based acrylic polymer, “smart carrier” of fire resistance property without releasing free bromine in the process of substrate (fabric, paint etc.) manufacturing.
2. The polymer is Nano-structured (produced in nanotechnology process).

Main advantages of the Offer
1. “Green” product, as compared to those on the market
2. Transparency, up to 100 %
3. Easy to use (easy incorporated in various systems / materials).
4. Compatibility with most textile finishing chemicals.
5. Good pH stability
6. Supplied as an aqueous dispersion with up to 50% solids.

Source: enterpriseeurope

New Techniques in Flame Retardant and Synergist Analysis

Visualization of key polymer additives in 3-D without damage to polymer or test sample allows for future advances in fire safety solutions

 A collaboration between researchers from Albemarle Corporation , Louisiana State University (LSU), and the Center for Advanced Microstructures and Devices (CAMD) has led to innovative new methods that will increase 3-D visualization of flame retardant and synergist components using element specific X-ray tomography. This research shows that it is possible to visualize key polymer additives in 3-D without damage to the polymer or test sample.

Brominated flame retardants and synergists are important polymer additives for fire safety. The ever increasing demand for fire safety, lower cost products and greener chemistry in consumer products drives extensive research aimed at creating more efficient and green flame retardants. Dispersion of the additives in the polymer matrices is critical to their efficiency and use. The spectroscopic tools and mathematical methods developed in this collaboration allow researchers to study both the dispersion of brominated materials and synergists to develop more efficient and greener blends.

“Our collaboration with LSU has been very successful and has led to new insights benefiting polymer additives, especially brominated flame retardants and synergists,” says Joop de Rooij, Albemarle’s R&D director. “New tools developed in this collaboration allow us to more accurately study dispersion and address performance issues in real commercial flame retardant application. This effort enables Albemarle to maintain our technology leadership in this highly competitive field by adapting and developing new and advanced products faster than the competition.”

According to Professor Les Butler of LSU and CAMD, “Working with Albemarle has clearly been a good situation. We have learned a lot about practical polymer and imaging technology and with this knowledge we have been able to develop the novel and powerful visualization tools.”

The work is funded through a Grant Opportunity for Academic Liaison with Industry (GOALI) from the National Science Foundation. Principal investigators with Professor Butler are Professor Randall Hall of LSU, and Dr. Larry Simeral, Distinguished Advisor at Albemarle. Source: Market WATCH

FRBioComp project

The overall aim of the project is to develop fire-retardant, environmentally sustainable composites using natural fibres and biopolymers. Novel synergistic combinations of the following will be developed and brought together to form these new biocomposites: (1) Inherently fire retardant natural fibres (which typically have poor mechanical performance); (2) High strength natural fibres treated with fire retardants; and (3) Biopolymers incorporating synergistic mixtures of non-halogenated FR’s and layered-silicate nanoclays.

The modified biopolymer fibres and natural fibres will be comingled (intimately mixed) and used to produce zero-twist yarns and highly aligned woven fabrics suitable for high performance composites. The fabrics will be treated with phosphorus and/or nitrogen-based flame retardants (previously identified to be effective on natural fibres, as described in State of the Art). These semi-finished materials will then be moulded into composite parts by applying heat and pressure to melt and flow the polymer. Processes will include vacuum bagging, compression moulding and pultrusion. The composite laminates produced will have reduced weight and production cost compared to current structures and will produce minimum smoke and toxic products on burning. They are expected to meet the fire performance requirements for construction (interiors, architectural parts), mass transport (interior panels and trim) and other sectors (automotive, electronics etc.)

The FRBioComp project will produce high performance, fire-retardant, environmentally sustainable composite materials, by developing and subsequently combining the following three components: (1) Inherently fire retardant natural fibres; (2) Natural fibres treated with fire retardants; and (3) Biopolymers incorporating synergistic fire retardants (primarily mixtures of non-halogenated fire retardants and layered-silicate nanoclays). These biocomposites will have reduced weight, production cost and environmental impact compared to current structures and will produce minimum smoke and toxic products on burning. The natural fibres and biopolymer fibres will be commingled and incorporated into highly aligned, twistless yarns and fabrics with high mechanical reinforcement potential and processability. The materials will be processed into composite parts and profiles and subjected to a battery of mechanical and fire tests, leading to the design, development and evaluation of several application specific case study parts. The economic, social and environmental impacts of the materials will be assessed. The materials developed will comply with the fire performance requirements for a range of applications, in particular in construction (interior/exterior cladding, furniture) and transportation (interior panels, seats), and other sectors including automotive, electronics/consumer goods and aerospace. For more information: click here
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