We are committed to repaying society with the best 1 2 4 5 BenzeneTetracarboxylic Dianhydride, MA for UPR, EINECS 201 898 9 and services, giving full play to our traditional advantages and optimizing our industrial layout.The company adopts advanced production equipment and testing equipment, equipped with professional quality testing department, and formulated a complete quality management system, manufacturing process and management system, specializing in the production of high-quality chain extender PMDA. We offer a wide range of products at competitive prices to meet the diverse needs of our customers. "Quality first, customer satisfaction, and keeping promises" has always been our business philosophy. We provide customers with sincere service and reliable products. We sincerely look forward to cooperating with domestic and foreign manufacturers and customers in good faith, communicating with each other, coordinating the development, mutual benefit and win-win, and creating brilliance together. We believe that the company is a learning organization, so that we advocate learning at work and working in learning, emphasizing a little improvement every day. Our company culture is built on trust, respect, and teamwork, where everyone is empowered to contribute to our shared success. In quality management, we pay attention to the quality management of links, especially the management of key links and establish a risk early warning and evaluation mechanism. Our circular economy, based on globalization, builds a sound market network, and establishes a good brand image.
  • Pyromellitic Dianhydride
    Pyromellitic Dianhydride (CAS 89-32-7),We offer two grades of content: 98% and 99.5% .99.5% grade is the primary product for exporting. It is mainly used as a monomer for the synthesis of polyimide
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  • N,N-Methylenebisacrylamide
    N,N'-Methylenebisacrylamide (MBA) (CAS 110-26-9) ,is also known as methylene bis-acrylamide.It is white powder,odorless,minimal hygroscopicity.It is easy to self-crosslink in case of high
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  • 99.5% Recrystallization PMDA
    Pyromellitic Dianhydride (PMDA), due to its rigid benzene ring structure and the highly reactive anhydride groups, can effectively participate in polymerization reactions to form stable imide bonds.
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  • Polymeric MDI
    Poly[methylene(polyphenyl) isocyanate] is a diisocyanate-diphenylmethane(MDI)-based composition containing some higher functionality isocyanates. The functionality is about 2.6-2.7. It is a brown
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  • Diphenylmethane
    Diphenylmethane (CAS 101-81-5), with a purity of 99.0% minimum, has aromatic properties and serves as an important intermediate in organic synthesis. It and its derivatives are widely used in various
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  • Acetoxime
    Acetoxime (CAS 127-06-0), Purity 99.5% min, is a raw material used in the production of medicines, pesticides, dyes, and silicone coupling agents.
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  • Trimellitic Anhydride
    Trimellitic Anhydride (CAS 552-30-7), Purity 97% min, is a white, flaky solid and primarily used to produce the PVC plasticizer dioctyl trimeric acid (TOTM).
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  • Maleic Anhydride
    Maleic anhydride (CAS 108-31-6), Purity 99.%min, we can supply Reach certificate.In stock.
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  • Phthalic Anhydride
    Phthalic anhydride (CAS 85-44-9), purity 99.5%. We can provide both OX-BASE PA and NP-BASE PA. Our OX-BASE PA exceeds the national standard for superior grade.
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  • Pyromellitic Acid
    Pyromellitic acid (CAS 89-05-4), Purity 99.0% min. It is obtained by hydrolyzing the crude pyromellitic dianhydride and it is the main raw material used in the production of the curing agent B68 for
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  • Fumaric Acid
    Fumaric acid (CAS 110-17-8). We can provide industrial grade, feed grade, and food grade. Feed and food grades are white crystalline powders that are non-adhesive, have good fluidity, and possess an
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  • 4,4 Diaminodiphenyl Ether
    4,4'-Diaminodiphenyl Ether, also known as ODA (4,4'-Diaminodiphenyl Ether), is an important organic compound with the formula C12H12N2O and a molecular weight of 200.24.
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Upgrading and Enhancement of Recycled …...

Jul 5, 2024 · The storage modulus for the CE Joncryl ADR-4400 is the highest, followed by the CE PMDA, showing that the CE Joncryl ADR-4400 is the most efficient chain extender, forming longer...

Reaction Kinetics of Recycled Polyethylene …...

Feb 25, 2024 · In this context, reactive processing of recycled poly (ethylene terephthalate) (rPET) with pyromellitic dianhydride (PMDA) offers a frequently studied modification approach to optimize...

(PDF) Recycled poly(ethylene terephthalate) chain …...

Aug 1, 2004 · A commercial-scale reactive extrusion processing system for recycled poly(ethylene terephthalate) (PET) flakes with an added chain extender, pyromellitic dianhydride (PMDA), was...

Influence of Chain Extenders on Recycled Standard and Opaque …...

Oct 6, 2022 · It was observed that PMDA and JONCRYL induce a more drastic increase in melt strength and melt elasticity than BOZ and PBO due to chain branching. In a second step, melt...

Chain Extender - an overview | ScienceDirect Topics...

The use of chain extenders is advisable when the aim is the prevention of thermal degradation of polymers during processing. The most commonly used chain extenders are TPP,...

PET recycling and chain extension during reactive …...

Jan 1, 2008 · In this work pyromellitic dianhydride (PMDA) was used as a chain extender to increase the molecular weight of polyethylene-terephthalate (PET) industrial scraps with low intrinsic...

We take customer needs as the center, respect customers, understand customers, and continue to provide products that exceed the technical level of the same Fumaric acid for food, monoethanolamine application, quaternary ammonium for disinfection industry in the market and satisfactory services that exceed customer expectations, which is the philosophy we have always insisted on and advocated. As one of the leading chain extender PMDA manufacturers and suppliers in China, we warmly welcome you to buy high purity chain extender PMDA made in China here from our factory. All chemical products are with high quality and competitive price.
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