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What Are The Flame Retardant Mechanisms

The mechanism of the protective layer, that is, at the temperature of the burning state, the flame retardant forms a non-combustible protective layer to cover the burning object, thereby isolating the air and achieving the flame retardant effect. Such as zinc borate, halogenated phosphorus flame retardants, etc. The mechanism of non-combustible gas is that the flame retardant can immediately decompose the non-combustible gas at normal temperature to dilute the combustible gas or dilute the oxygen concentration in the combustion area to prevent combustion, such as halogen-containing flame-retardant catalysts. Cooling mechanism, that is, the flame retardant can melt the solid surface layer of the polymer at a lower temperature to absorb Read more

Twelve Common Flame Retardants

Decabromodiphenyl ether (DBDPO) has a melting point of 304°C, non-toxic, white powder, containing more than 80% bromine. It is an additive flame retardant. Commonly used in PP, PE, PS, PBT, PET, ABS and other plastics, but the weather resistance is poor. Octabrominated diphenyl ether (BDDP), the melting point is 100 ℃, it is a flame retardant of aromatic bromide, commonly used in PP, PE, PS, ABS. Hexabromobenzene (HBB), white powder, melting point of 320 ℃, is an additive flame retardant, and is mostly used in combination with antimony trioxide. Commonly used in PE, PP, PS, ABS, PA, PBT, PET. Tetrabromobisphenol A (TBA) white powder with a melting point of 179°C, Read more

Key Factors Affecting The Quality Of Black Masterbatch

Greater Compatibility Compatibility is the fourth factor that determines the quality of black masterbatch. If the masterbatch is produced from chips or recycled material, it may contain contaminants or other non-meltable polymers. This can cause unforeseen, unmanageable troubles, wasting the end consumer’s time and materials. At this time, primer resin can be used to produce high-quality color masterbatch, and the masterbatch has good compatibility during the melting process. High quality masterbatches can be produced using LLDPE, LDPE, HDPE, PP, PS, SAN, PA and other materials. Special polymeric masterbatches are available if engineering grades and stringent physical properties are specified. Several international large-scale color masterbatch manufacturers are conducting research to produce Read more

Plastic Melting Point Decomposition Temperature

Plastic raw materials are divided into two types: thermosetting plastics and thermoplastics. Our existing injection molding materials usually refer to thermoplastics. Thermoplastics can be divided into two types: crystalline and amorphous according to the structural characteristics of their internal molecules. Crystalline polymers The internal molecules are arranged in an orderly and regular manner, with obvious melting points such as PE, PP, POM, PBT, PET, PA; the internal molecules of amorphous polymers are arranged in disorder, and there are no obvious melting points such as PS, ABS, PVC, PMMA, PSU, PPO. The following is a brief introduction to the material characteristics of several commonly used plastic raw materials PP, POM, PC, Read more

Clarify The Color Matching Goals Have a clear and comprehensive understanding of the samples to be prepared. Because, the sample obtained will not be the only one. Generally, it may be plastic parts, panton numbers, photos, leather, metal parts, etc., and everything with color may be something you need to know. According to the plastic raw material, distinguish the soft and hard glue toner. This narrows the range of toners. Are there any special requirements for weather resistance, chemical resistance, with or without fillers or other additives, and environmental protection? Choose toner or masterbatch according to the molding process (eg: medium temperature toner or high temperature resistance) Analyzing Hue The Read more

The Analysis Of PEEK Post Heat Treatment

First of all, in the production of extruded PEEK sheets or PEEK rods, it is more common to select the performance parameters of raw materials, especially the melting point of the raw materials, which involves the flatness of the extruded sheet surface and the roundness of the round bars. High temperature will increase the difficulty of controlling the thickness/flatness/roundness/straightness of extrusion molding, while the profiles made with lower melting point are difficult to have better performance guarantee in terms of performance, so appropriate raw materials The melting point has a great relationship with the control of the forming and size control of the extruded profile; Secondly, whether the supporting parts Read more

PEEK Plastic VS Titanium Alloy

Cranioplasty is the most common type of brain surgery. Due to the huge individual differences, in addition to strict requirements for biocompatibility and mechanical properties, cranial implants have extremely high demands for individualization. As an important application of 3D printing in the medical field, laser (electron beam) printed titanium alloy vs PEEK manufactured by FDM technology have played an important role in skull repair. In this issue, we will discuss the traditional and 3D printing methods of manufacturing skull restorations with these two materials, as well as the problems they face. Medical Titanium Alloy 1. Medical Benefits Medical titanium alloy has good biocompatibility and mechanical strength, easy machining titanium and Read more

The PEEK Of 3D Printing Molding Process

Because PEEK has a high melting point of about 343 °C, there has been no way to 3D print high-temperature plastics such as PEEK for a long time, especially fused deposition printing. The first thing researchers realized was the use of laser selective sintering technology (SLS), until recently, a company has realized fused deposition 3D printing PEEK(FDM 3D PRINTING) . Laser Selective Sintering 3D Printing Of PEEK. Selective Laser Sintering (SLS) is the selective laser sintering technology. The principle is to lay a layer of PEEK powder material on the worktable in advance. Sintered, and then continuously circulated, forming layer by layer. The picture below is a PEEK part formed Read more

The Analysis And Material Selection Of Plastics Commonly Used In Electronic Cigarettes

China is the place where electronic cigarettes were invented and the main production place, and 90% of the world’s electronic cigarettes are produced in Shenzhen, China. The author’s company is located in Dongguan, and there are currently several customers who are doing electronic cigarettes. Some of these projects have been followed up from the initial stage of the customer’s project. Yes, a customer just ordered the goods today, so I remembered to write an article about the plastic materials commonly used in electronic cigarettes, I just hope to provide some help to friends who need this. The electronic cigarette is mainly composed of three parts: the cigarette rod, the atomizer Read more

The Eyeglass Frame Application Of PEEK Material

Lightweight has received a lot of attention in the automotive industry, and this technology has also benefited products in other industries. A recent application is glasses. Hong Kong Mentor Optical Co., Ltd. launched the Plasteel series of glasses, which weighs only 9 grams instead of the usual 23 grams, and uses PEEK plastic. It is worth mentioning that the PEEK polymer makes it possible to lighten the glasses. In addition, the chemical resistance and thermal stability of this material lead to biocompatibility and biostability. In addition to being lighter than traditional eyeglass frames, Plasteel glasses are extremely durable and can pass the 360° bending test intact. This is very similar Read more