High-performance flame-retarding master batch

Abstract

The invention discloses a high-performance flame-retarding master batch comprising, by weight, 37-41 parts of HIPS resin, 12-13 parts of a flexibilizer, 20.6-23.4 parts of a flame retardant, 0.3-0.4 parts of a lubricant, 0.1-0.3 parts of processing modification oil, 0.1-0.2 parts of an anti-drip agent, 0.6-0.7 parts of a curing agent and 0.35-0.51 parts of an antioxidant; preferably, 39 parts of the HIPS resin, 12.6 parts of the flexibilizer, 22.05 parts of the flame retardant, 0.35 parts of the lubricant, 0.21 parts of the processing modification oil, 0.14 parts of the anti-drip agent, 0.63 parts of the curing agent and 0.42 parts of the antioxidant. The master batch is prepared with addition of the anti-drip agent and carbon-forming agent, so that high flame retarding effect is achieved. The master batch is free of dripping and sparks can be self-extinguished within 5 sec. The flame-retarding master batch has excellent performances.

Description

technical field [0001] The invention relates to the field of chemical industry, in particular to a high-performance flame-retardant masterbatch with good flame-retardant effect, no dripping, and quick extinguishment of sparks. Background technique [0002] High-impact polystyrene has been widely used in the field of electronic appliances due to its excellent rigidity, toughness, processability and other balanced properties, as well as high cost performance, especially in the TV industry. It has completely replaced ABS, PC / ABS has become the material of choice for TV front frames and rear shells. [0003] Ordinary HIPS itself is extremely flammable and releases a large amount of toxic gas, so it is difficult to meet the heat resistance requirements of the electronic and electrical industry. Usually, HIPS meets this requirement by adding a large amount of flame retardants for extrusion modification. Most of the current flame retardants are powders, and the processing site env...

AI Technical Summary

Problems solved by technology

[0003] Ordinary HIPS itself is extremely flammable and releases a large amount of toxic gas, so it is difficult to meet the heat resistance requirements of the electronic and electrical industry

Usually, HIPS meets this requirement by adding a large amount of flame retardants for extrusion modification. Most of the current flame retardants are powders, and the processing site environment is harsh. At the same time, more powder content makes higher requirements for processing equipment. Satisfy the stable flame retardant performance of the final material, and this processing method is only suitable for plastic modification plants, and cannot be applied to end injection molding customers

And there will be sparks when adding ordinary flame retardants, which poses a safety hazard

[0004] At present, some patents have disclosed the manufacturing method of HIPS flame retardant masterbatch, and the independent flame retardant is used to produce masterbatch, such as Chinese patent CN102604225A. Although this method improves the pollution and processing problems of powder, it cannot be directly mixed with resin processing injection molding

[0005] In addition, the Chinese patent CN102643489A discloses a flame-retardant and toughened polystyrene masterbatch and its preparation method. This patent uses an environmentally friendly flame retardant to compound and prepares a masterbatch that can be directly mixed with resin, but the patent emphasizes that The mechanical and oxygen index properties of the masterbatch prepared by this mixed formula, but through verification, it is found that the flame retardant performance of this type of masterbatch cannot meet the requirements, the solidification is slow, dripping occurs when burning, and the spark extinguishing time is too long