News
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Production of Caustic Soda.
Caustic soda (NaOH) is one of the most important chemical feed stocks, with a total annual production of 106t. NaOH is used in organic chemistry, in the production of aluminium, in the paper industry, in the food processing industry, in the manufacture of detergents, etc. Caustic soda is a co-product in the production of chlorine, 97% of which takes place by the electrolysis of sodium chloride. Caustic soda has an aggressive impact on most metallic materials, especially at high temperatures and concentrations. It has been known for a long time, however, that nickel exhibits excellent corrosion resistance to caustic soda at all concentrations and temperatures, as Figure 1 shows. In addition, except at very high concentrations and temperatures, nickel is immune to caustic-induced stress-c... -
The main uses of paste pvc resin.
Polyvinyl chloride or PVC is a type of resin used in the production of rubber and plastic. PVC resin is available in white color and powder form. It is mixed with additives and plasticizers to manufacture PVC paste resin. Pvc paste resin is used for coating, dipping, foaming, spray coating, and rotational forming. PVC paste resin is useful in the manufacturing of various value-added products such as floor and wall coverings, artificial leather, surface layers, gloves, and slush-molding products. Major end-user industries of PVC paste resin include construction, automobile, printing, synthetic leather, and industrial gloves. PVC paste resin is increasingly used in these industries, due to its enhanced physical properties, uniformity, high gloss, and shine. PVC paste resin can be customiz... -
17.6 billion! Wanhua Chemical officially announces foreign investment.
On the evening of December 13, Wanhua Chemical issued a foreign investment announcement. The name of the investment target: Wanhua Chemical’s 1.2 million tons/year ethylene and downstream high-end polyolefin project, and the investment amount: a total investment of 17.6 billion yuan. The downstream high-end products of my country’s ethylene industry rely heavily on imports. Polyethylene elastomers are an important part of new chemical materials. Among them, high-end polyolefin products such as polyolefin elastomers (POE) and differentiated special materials are 100% dependent on imports. After years of independent technology development, the company has fully mastered the relevant technologies. The company plans to implement the second-phase project of ethylene in Yantai Ind... -
Fashion brands are also playing with synthetic biology, with LanzaTech launching a black dress made from CO₂.
It is no exaggeration to say that synthetic biology has penetrated into every aspect of people’s lives. ZymoChem is about to develop a ski jacket made of sugar. Recently, a fashion clothing brand has launched a dress made of CO₂. Fang is LanzaTech, a star synthetic biology company. It is understood that this cooperation is not the first “crossover” of LanzaTech. As early as July this year, LanzaTech cooperated with sportswear company Lululemon and produced the world’s first yarn and fabric that uses recycled carbon emission textiles. LanzaTech is a synthetic biology technology company located in Illinois, USA. Based on its technical accumulation in synthetic biology, bioinformatics, artificial intelligence and machine learning, and engineering, LanzaTech has deve... -
Methods to Enhance PVC Properties – Role of Additives.
PVC resin obtained from polymerization is extremely unstable due to its low thermal stability & high melt viscosity. It needs to be modified before processing into finished products. Its properties can be enhanced/modified by adding several additives, such as heat stabilizers, UV stabilizers, plasticizers, impact modifiers, fillers, flame retardants, pigments, etc. Selection of these additives to enhance polymer’s properties is dependent on end application requirement. For example: 1.Plasticizers (Phthalates, Adipates, Trimellitate, etc.) are used as softening agents to enhance rheological as well mechanical performance (toughness, strength) of vinyl products by raising the temperature. Factors that affect the selection of plasticizers for vinyl polymer are:Polymer compatibili... -
Chemdo’s plenary meeting on 12/12.
On the afternoon of December 12th, Chemdo held a plenary meeting. The content of the meeting is divided into three parts. First, because China has relaxed the control of the coronavirus, the general manager issued a series of policies for the company to deal with the epidemic, and asked everyone to prepare medicines and pay attention to the protection of the elderly and children at home. Second, a year-end summary meeting is tentatively scheduled to be held on December 30, and everyone is required to submit year-end reports in time. Third, it is tentatively scheduled to hold the company’s year-end dinner on the evening of December 30th. There will be games and a lottery session at that time and hope everyone will actively participate. -
A polylactic acid 3D printed chair that subverts your imagination.
In recent years, 3D printing technology can be seen in various industrial fields, such as clothing, automobiles, construction, food, etc., can all use 3D printing technology. In fact, 3D printing technology was applied to incremental production in the early days, because its rapid prototyping method can reduce time, manpower and raw material consumption. However, as the technology matures, the function of 3D printing is not only incremental. The wide application of 3D printing technology extends to the furniture that is closest to your daily life. 3D printing technology has changed the manufacturing process of furniture. Traditionally, making furniture requires a lot of time, money and manpower. After the product prototype is produced, it needs to be continuously tested and improved. Ho... -
Analysis on the Changes of PE Downstream Consumption Varieties in the Future.
At present, the consumption volume of polyethylene in my country is large, and the classification of downstream varieties is complicated and mainly sold directly to plastic product manufacturers. It belongs to the partial end product in the downstream industry chain of ethylene. Coupled with the impact of the regional concentration of domestic consumption, the regional supply and demand gap is not balanced. With the concentrated expansion of production capacity of my country’s polyethylene upstream production enterprises in recent years, the supply side has increased significantly. At the same time, due to the continuous improvement of residents’ production and living standards, the demand for them has steadily increased in recent years. However, since the second half of 202... -
What Are The Different Types of Polypropylene?
There are two main types of polypropylene available: homopolymers and copolymers. The copolymers are further divided into block copolymers and random copolymers. Each category fits certain applications better than the others. Polypropylene is often called the “steel” of the plastic industry because of the various ways in which it can be modified or customized to best serve a particular purpose. This is usually achieved by introducing special additives to it or by manufacturing it in a very particular way. This adaptability is a vital property. Homopolymer polypropylene is a general-purpose grade. You can think of this like the default state of the polypropylene material. Block copolymer polypropylene has co-monomer units arranged in blocks (that is, in a regular pattern) and contain any... -
What are the Characteristics of Polyvinyl Chloride (PVC)?
Some of the most significant properties of Polyvinyl Chloride (PVC) are: Density: PVC is very dense compared to most plastics (specific gravity around 1.4) Economics: PVC is readily available and cheap. Hardness: Rigid PVC ranks well for hardness and durability. Strength: Rigid PVC has excellent tensile strength. Polyvinyl Chloride is a “thermoplastic” (as opposed to “thermoset”) material, which has to do with the way the plastic responds to heat. Thermoplastic materials become liquid at their melting point (a range for PVC between the very low 100 degrees Celsius and higher values like 260 degrees Celsius depending on the additives). A primary useful attribute about thermoplastics is that they can be heated to their melting point, cooled, and reheated again wi... -
What is caustic soda?
On an average trip to the supermarket, shoppers may stock up on detergent, purchase a bottle of aspirin and take a look at the latest headlines on newspapers and magazines. At first glance, it may not seem like these items have much in common. However, for each of them, caustic soda plays a key role in their ingredient lists or manufacturing processes. What is caustic soda? Caustic soda is the chemical compound sodium hydroxide (NaOH). This compound is an alkali – a type of base that can neutralize acids and is soluble in water. Today caustic soda can be manufactured in the form of pellets, flakes, powders, solutions and more. What is caustic soda used for? Caustic soda has become a common ingredient in the production of many everyday items. Commonly known as lye, it has been used t... -
Why is Polypropylene used so often?
Polypropylene is used in both household and industrial applications. Its unique properties and ability to adapt to various fabrication techniques make it stand out as an invaluable material for a wide range of uses. Another invaluable characteristic is polypropylene’s ability to function as both a plastic material and as a fiber (like those promotional tote bags that are given away at events, races, etc). Polypropylene’s unique ability to be manufactured through different methods and into different applications meant it soon started to challenge many of the old alternative materials, notably in the packaging, fiber, and injection molding industries. Its growth has been sustained over the years and it remains a major player in the plastic industry worldwide. At Creative Mechanisms, we ha...