Today's KNOWLEDGE Share : The temperature and pressure in RTM?

 Today's KNOWLEDGE Share

What temperature and pressure is typical in RTM?

As a reference, out-of-autoclave prepregs are cured at 100-150C and 1-3 bar. 

Again, the resin system is decisive. With epoxy ones, the most common ones, the curing temperature will be at 70, 80, or 90 degrees. 

The good thing is you can play with the activity of the resin. 

A very reactive resin means that it actually creates an exothermic reaction. So even if you have the tool at 70 degrees, it probably means that the system is at 100 degrees.

It's curing quicker and at a higher temperature. Still, you don't need to heat up your tool to that temperature because the composite is doing the work. 

About pressure: When looking at Light RTM, we are looking at a couple of bars, but when we are looking at the High-Pressure RTM, we can be looking at 5, 6, 7, or 8 bars of pressure. 

Source:The Native Lab

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#composites #rtm #epoxy #fiber #prepreg #pressure #temperature

Nonwoven Market:Forecasting,capacity,demand,supply,oversupply

Nonwoven Market:

I have completed an assignment on Nonwoven market that covers Spunlaid,Drylaid,Airlaid,Wetlaid for a well-reputed multinational company and shared my insights on Trends in the now woven product market.I also provided information on the production capacity and oversupply for NA,LATAM,ASIA PACIFIC,EU,ROW etc.

I have covered the comprehensive landscape of the market, key players of dominance and also forecasted the demand for the next 5 years in each geographical region.

Visit MY BLOG http://polymerguru.blogspot.com

#nonwoven #wipes #films #demand #marketresearch #asiapacific #marketshare# Northamerica #demandforecasting #trends #supply #demand

Pyrum Innovations AG to Build Pyrolysis Plant in Czech Republic

Pyrum Innovations AG ("Pyrum", the "Company") plans to build a pyrum pyrolysis plant in the Czech Republic together with a Czech energy company.

A corresponding consulting contract was signed with a subsidiary of the group of companies in order to prepare the permit for the construction of the tire recycling plant and to submit the building application.

To be Integrated into the Partner's Existing Plant:

The new plant, with a capacity of 20,000 tonnes of #scraptires per year, is being built in the Czech border region with Germany and is scheduled to start operation in 2025. The Czech partner, which is active in the field of energy and recycling management, already operates a power plant on the property and therefore has a gas turbine that will co-convert the #pyrolysis gas into electricity in the future.

Pascal Klein, CEO of Pyrum Innovations AG, "We are looking forward to this groundbreaking project. Using the existing infrastructure to operate the new tire recycling facility is an approach that fits perfectly with Pyrum's commitment to #sustainability. The plans also underline the ongoing internationalization of our company. Together with our partner, we will contribute to the circular economy and provide a sustainable solution for end-of-life tire recycling in the Czech Republic."

A special purpose vehicle (SPV) joint venture is to be established for the construction and operation of the new plant, in which #Pyrum is expected to hold a 30% stake. As part of the consulting contract, Pyrum will carry out the basic engineering as well as prepare parts of the approval documents for the new plant.

The property also offers sufficient space for future capacity expansions. For this reason, the size of the plant is already being designed in such a way that recycling capacities can be doubled in 2027. In addition to Pyrum's main plant in Dillingen/Saar, the joint venture REVALIT GmbH and the already announced plans for the construction of pyrolysis plants together with SUEZ #recycling and recovery UK Ltd in Great Britain and Thermo Lysi SA in Greece.

Source: Pyrum Innovations AG/omnexus-specialchem

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Today's KNOWLEDGE Share:Why to avoid branched polymers in Injection Molding

Today's KNOWLEDGE Share

Why should we avoid branched polymers in Injection Molding and always keep thickness constant when possible ?

In a transition from thick to thin, the polymer undergoes substantial extensional flow. This aspect of flow is challenging to measure in a lab and difficult to implement correctly in Flow Analysis. When polymers are non-linear in their chain structure a strong "strain-hardening" will appear, resulting in unexpectedly high pressure drop at these thickness transitions. Runner to gate transitions may present significant pressure drop due to this elongational viscosity effect (possibly hundreds of bar, thousands of psi).

We have of course many other good reasons to keep thickness as uniform as possible, first of which, the attempt to have uniform freezing rates everywhere, get uniform packing and minimize differential shrinkage.

source:Vito Leo

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#plastics #injectionmolding #plasticindustry #pressure #shrinkage #pressuredrop

Today's KNOWLEDGE Share:Hydrogen Transport a century ago

Today's KNOWLEDGE Share

Impressive Large-Scale #Hydrogen Transport by Rail in #Germany Over a Century Ago!

Did you know that more than a century ago, Germany was already pioneering massive high-pressure hydrogen transport by rail? This demonstrates our historical commitment to innovation and hydrogen transportation solutions, which continues to inspire us in our present efforts to advance clean energy and mobility.

Source:Prof. Dr.Lars Rontzsch

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#hydrogen #transportation #railtransport #cleanenergy #BAMAG

Toray Develops PPS-GFRP Recycling Technology that Produces High-quality Recyclates

Toray Industries, Inc., announced that it has developed a technology that makes it possible to recycle glass fiber-reinforced #polyphenylenesulfide (PPS-GFRP) whose performance matches initial performance of virgin resins. By Increasing recycling ratio of PPS-GFRP, it will contribute to reducing CO2 emission.

Proprietary Technology Blends PPS Resin with Special Reinforcing Fibers:

Polyphenylene Sulfide (PPS) resin is an engineering plastic with excellent heat resistance and chemical resistance. More than 90% of PPS resin is glass fiber reinforced and applied for various types of industrial applications. Also, PPS resin has excellent insulation resistance. It is applied for electronic parts such as semiconductors and EV parts. Demand of PPS resin is expected to increase along with these applications and the need of PPS recycling resins.

The conventional process for recycling PPS-GFRP shortens glass fibers and break them. This significantly decreases mechanical strength. To meet the performance requirements of resin molded products, manufacturers generally apply them in applications with lower quality requirements. This makes it difficult to increase the recycling ratio of #PPS resin.

Toray developed pellets for recycling materials by leveraging proprietary compounding technology to blend PPS resin with special #reinforcingfibers. Blending these pellets with recycled material makes it possible to maintain comparable performance with virgin material and can be applied to same application, such as horizontal recycling and expected to be used for various applications.

This technology can deliver comparable mechanical strength with #injectiongrade moldings wholly made with virgin material. This is even when recycled material accounts for 50% or more of the PPS-GFRP. Another benefit of 50% recycled content is that it reduces #CO2emission by at least 40%.

Collaborating to Embark on #ClosedRecycling Initiatives with its Technology:

The company is working on technologies to broaden variations by designing different resins and additives in pellets for recycling materials. It looks to supply recycled #PPSGFRP pellets after engineering optimal pellet blend ratios and formulations that meet customer demand requirements and by drawing on Materials Informatics-based prediction technologies.

#Collaborating with several #molding companies and other business partners, #Toray has already embarked on closed #recycling initiatives with its technology. One move has been to supply customers with recycled PPS-GFRP pellets blended with those for materials recycling based on process remnants from customer plants.

Source: Toray/omnexus.specialchem.com

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LG Chem and Eni Sustainable Mobility to Develop Biorefinery Utilizing Bio-feedstock

LG Chem and Eni Sustainable Mobility jointly announce that they are exploring the possibility to develop and operate a new biorefinery at LG Chem’s Daesan chemical complex, 80 kilometers southwest of Seoul, South Korea.

Together, the companies are examining the technical and economic feasibilities for the proposed project. Final decision for the investment is scheduled by 2024 and the plant will be completed by 2026 at the existing integrated petrochemical complex in Daesan, Korea.

Committed to Produce More Sustainable Chemicals:

The new biorefinery will leverage LG Chem’s integrated value chain as well as the existing utilities and facilities of the industrial site.

The potential biorefinery aims to meet the growing demand for more sustainable fuels and plastics produced by low-carbon processes, as well as to help progressively decarbonize the energy and mobility sector.

It is designed to process approximately 400,000 tons of #biofeedstocks annually using Eni's Ecofining™ process, developed in collaboration with Honeywell UOP. It will also have the flexibility to process renewable bio-feedstocks and produce multiple products including Sustainable Aviation Fuel (#SAF), Hydrotreated Vegetable Oil (#HVO), and bio-naphtha.

Committed to producing more sustainable chemicals, LG Chem will leverage its knowledge and resources to ensure the project's success. LG Chem has been manufacturing eco-friendly plastic products using bio-naphtha since 2020.

Bringing Extensive Experience in Biorefining:

In April 2021, LG Chem became the first South Korean chemical company to receive ISCC Plus certification for nine Bio-circular Balanced products. Four months later, LG Chem started shipping its first bio-balanced SAP (#SuperAbsorbentPolymer) products, also certified with ISCC Plus, to overseas markets.

In October 2022, #LGChem expanded its #ISCCPlus certified eco-certified product portfolio to over 50 items, reaffirming its ever-growing commitment to #sustainability. LG Chem will now work closely with Eni to increase the visibility of its eco-friendly integrated brand LETZero.

Eni will bring its extensive experience in biorefining, along with its Ecofining™ technology. In 2014, Eni accomplished the world’s first refinery-to-biorefinery conversion at Porto Marghera, Venice, followed by a second converted #biorefinery that has been working in Gela (Sicily) since 2019.

In June 2023, #Eni entered in a joint venture with #PBFEnergy acquiring 50% interest of St. Bernard Renewables LLC bio-refinery in Louisiana (USA) also based on the use of the Ecofining™ technology.

Source: LG Chem/specialchem

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