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Low-emission flame-retardant polystyrene material and preparation method thereof

A polystyrene, low-emission technology, applied in the field of low-emission flame-retardant polystyrene materials and its preparation, can solve the problems of limited flame-retardant effect, and achieve the effects of low cost, simple production process, and easy industrialization

Inactive Publication Date: 2017-05-17
SHANGHAI PRET COMPOSITES +4
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Since lignin can be used as a good char-forming agent to play a flame-retardant effect, the polyolefin composite material filled with lignin has a certain flame-retardant effect, but the flame-retardant effect is limited when lignin is used alone, and it needs to be combined with other flame-retardant materials. Agent synergy can meet the use requirements

Method used

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  • Low-emission flame-retardant polystyrene material and preparation method thereof
  • Low-emission flame-retardant polystyrene material and preparation method thereof
  • Low-emission flame-retardant polystyrene material and preparation method thereof

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Embodiment Construction

[0022] In the polystyrene material formulations of Examples and Comparative Examples, HIPS selects 476L from Yangzi BASF Styrene Series Co., Ltd. The modified lignin and PS-g-MAH used were self-made. Attapulgite clay is selected from Jiangsu Xuyi Attapulgite Clay Company, with a purity of 80%, a fineness of 300 mesh, and an exchangeable calcium ion content of 12mmol / 100g. The quaternary ammonium salt type surfactant is selected from chemically pure cetyltrimethylammonium bromide, which is commercially available. The main antioxidant is Irganox 1010 produced by Ciba, Switzerland. The auxiliary antioxidant is selected from Irganos 168 produced by Ciba Company in Switzerland.

[0023] Dry-mix various raw materials and additives in a high-speed mixer for 5 to 15 minutes; put the uniformly mixed raw materials into a twin-screw extruder, melt and extrude, cool and granulate to obtain polystyrene materials.

[0024] Performance evaluation methods and implementation standards:

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Abstract

The invention discloses a low-emission flame-retardant polystyrene material and a preparation method thereof. The low-emission flame-retardant polystyrene material is prepared from the following raw materials in percentage by weight: 70-86% of HIPS, 10-20% of modified lignin, 2-5% of polystyrene-g-maleic anhydride, 1-5% of an adsorbent, 0.1-0.5% of an antioxidant and 0-1.5% of other additive. The low-emission flame-retardant polystyrene material has the advantages that (1) a traditional flame retardant is replaced with the flame-retardant element-grafted modified lignin containing nitrogen and phosphorus, the polystyrene material is prepared to maintain original mechanical property, and meanwhile, the polystyrene material also has low emission and a good flame-retardant effect; and (2) the prepared polystyrene material is simple in production technology, relatively low in cost and easy to industrialize.

Description

technical field [0001] The invention relates to a low-emission flame-retardant polystyrene material and a preparation method thereof, belonging to the field of polymer modification and processing. Background technique [0002] High-impact polystyrene (HIPS) resin is a graft-modified polymer of styrene and a small amount of butadiene monomer, which is widely used in electrical appliances, furniture, construction and other fields. Since HIPS resin is easy to burn and emits a lot of black smoke when burning, it has a potential fire hazard. In most cases, it is required to have high flame retardancy, and it is usually required to meet the V-0 requirements of UL-94. The common flame retardant method is to add bromine, phosphorus or inorganic flame retardants to prepare flame retardants. HIPS resin. [0003] At the same time, as the public's awareness of environmental protection and health increases, people put forward higher requirements for indoor odor and air quality. In add...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L51/04C08L97/00C08L51/00C08K13/06C08K9/04C08K3/34C08H7/00
CPCC08L51/04C08H6/00C08L2201/02C08L2205/03C08L2310/00C08L97/005C08L51/003C08K13/06C08K9/04C08K3/346
Inventor 柒祥芝张鹰张祥福周文
Owner SHANGHAI PRET COMPOSITES
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