Modified Polyurethane Mdi Polyurethane Prepolymer Polymer

TDI introduction

TDI (toluene diisocyanate) is one of the commonly used polyisocyanates, and polyisocyanates are polyurethane (PU) materials and important basic raw materials. The commonly used TDI in the polyurethane industry is a mixture of 2,4-TDI and 2,6-TDI isomers, including 3 commonly used grades: TDI-80/20, TDI-100 and TDI-65/35. The preceding number indicates the content of 2,4-TDI in the composition. For example, 80 in TDI-80/20 means that its composition is 80% of 2,4-TDI and 20% of 2,6-TDI; 100 in TDI-100 means that it is basically 2,4-TDI (about 98 %), there are few isomers of 2,6-TDI. Mainly used in the production of flexible polyurethane foam and polyurethane elastomer, coatings, adhesives, etc.

1. Applications

Polyurethane is mainly used for polyurethane synthetic leather, polyurethane foam, polyurethane coating, polyurethane adhesive, polyurethane rubber (elastomer) and polyurethane fiber. Transformation, polyurethane is also used in civil engineering, site drilling, mining and petroleum engineering to block water and stabilize buildings or roadbeds; as a paving material, it is used in sports fields, runways, and indoor floors of buildings.

2. Typical Physical and Chemical Properties

3. Package(s)

210L iron drums, 250kg/drum

4. Storage

Since WANNATE® PM-200 is a reactive chemical, reaction with atmospheric moisture happens easily and leads to the formation of insoluble ureas and carbon dioxide gas, which can result in pressure build-up in closed containers and viscosity increase of the product. Containers must therefore be absolutely dry and carefully sealed after congested with nitrogen. Containers of WANNATE® PM-200 should be kept properly closed and stored indoors at ambient temperature (15-35℃) in a well-ventilated area. Storage at low temperature (below 5℃) may lead to some crystallization; this material must, therefore, be protected from frost. PM-200 2 / 2 Wanhua Chemical Group Co., LTD If crystallization does occur, the material should be heated by rolling the drum in a hot air oven at 70-80℃ to melt it out, and should then be thoroughly agitated before use. Melting in a water bath is not recommended. Extended storage at temperatures above 50℃ is not recommended to prevent from the formation of insoluble solids and viscosity increase.

5. Shelf Life

Under recommended storage conditions, the shelf life of WANNATE® PM-200 is one year since the date of production.

Qingdao Exceed Fine Chemicals Co., Ltd is a high-tech enterprise that integrates manufacturing and trading. We specialize in the production of polyurethane-based products.

Our company is dedicated to investing in research and development of cutting-edge products, collaborating with leading Chinese universities and institutions. We have successfully developed a heat-vulcanization, environmentally friendly bonding adhesive that rivals the quality of world-renowned brands like Lord and Dow.

At Exceed, we believe in the power of science

Qingdao Exceed Fine Chemicals boasts a team of over 30 skilled technicians, supported by advanced manufacturing equipment and robust production processes. We maintain an independent R&D institute and foster strong collaborations with leading universities and research institutions to continuously enhance our production processes, product quality, and performance.

With decades of dedicated efforts, we have successfully exported our products to markets across the globe, including Europe, Asia, North America, South America, Oceania, and Africa.

Furthermore, leveraging our extensive domestic network, we act as a reliable purchasing agent, assisting customers in sourcing specific materials according to their unique requirements.

 Furthermore, we employ a dedicated team of quality control (QC) professionals with expertise in the field of chemicals. This rigorous quality control ensures consistent and reliable product quality for our valued customers.

Currently, we achieve annual export sales exceeding USD 30 million to over 30 countries worldwide, encompassing a diverse product range including polyurethane chemicals, heat-vulcanization environmental friendly bonding adhesive etc.

We understand that customers prioritize competitive pricing, exceptional quality, and consistent product availability. We firmly believe that Exceedchem is the ideal partner to fulfill your specific needs.

As a trusted purchasing agent for clients worldwide, we leverage our extensive experience to source high-quality products at competitive prices. Our primary objective is to deliver the most cost-effective solutions while maintaining the highest standards of quality.