News_第56页_Novista Chemicals - The pioneer of Flame retardant

17 2021-9
PVC and PVC stabilizers Poly(vinyl chloride), PVC, is a common commodity plastic, and its production is the third largest, after polyethylene and polypropylene (Yoshioka et al., 2008). It is cost-effective, highly versatile and is used in many construction applications as water, sewage and drainage pipes, and a variety of extruded profiles (Van Es et al., 2008).Thousands of rigid, semi-flexible and fle…
17 2021-9
PVC THERMAL STABILIZERS The main classes of thermal stabilizers in current use are lead salts, metal soaps and organo-tin compounds. Some of these have disadvantages in terms of toxicity, environmental pollution and/or high cost (Lin et al., 2006).The metal soaps and organo-tin stabilizers are safer than lead salts, but their stabilization effects are usually lower than those of lead salts. In fact, ca…
11 2021-9
Why are flame retardants still necessary? According to the National Fire Protection Association (NFPA), the number of reported fires in the United States decreased by seven percent from 2008 to 2009. In addition, between 1977 and 2009, civilian fire deaths declined from 7,395 to 3,010 respectively. Flame retardants have played a key role in reducing the incidence of fire. Unfortunately, despite the perceptions of some t…
11 2021-9
EEE Products that Use Flame Retardants The use of electrical and electronic equipment (EEE) is pervasive everywhere we live, work and do business. We rely on these products and devices to work properly—and safely—and we rarely think about how they are made. Flame retardants are incorporated into a wide variety of electrical and electronic products used by consumers, businesses, and the medical and transportation in…
11 2021-9
Test methods on flame retardant Common flame retardant tests include combustion tests, limit oxygen index, glow wire tests, and smoke test. The purpose of the flame retardant test is to evaluate the burning characteristics of the material, that is, to test the sample using conditions that simulate actual combustion, and evaluate the burning characteristics of the sample from different dimensions such as ignita…
10 2021-9
HOW IS PVC USED Example of PVC Pipe UseFirst implemented in the 1920s, PVC is now heavily used within water delivery pipes, venting and duckwork for structures, appliances and equipment, plumbing conveyance of sewage and wastes, chemical fluid transfer, in construction engineering as well as an array of individual, unique items and consumer products. When used in applications, PVC is considered…
10 2021-9
PVC CHARACTERISTICS AND PROPERTIES PVC as a material is fairly durable, flexible, and resistant to many harsh working conditions that can involve chemicals, soil, water, wastewater and water pressure. As a plastic, PVC is naturally resistant to corroding, rusting and the effects of weathering, excluding PVC’s long term sensitivity to continuous ultraviolet (UV) sun exposure. Within chemical handling and processi…
10 2021-9
WHAT IS PVC | WHAT IS UPVC? PVC is the three-letter acronym used to describe polyvinyl chloride, a synthetic plastic and highly versatile material. PVC is widely used within modern society and sector applications as pipe for transporting fluids from water to chemicals to ingredients. uPVC stands for unplasticized polyvinyl chloride and is PVC without plasticizing (flexibility) agents added. PVC and uPVC is…