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Halogen free flame-retarded system for engineering plastics preparation and PBT composite material and preparation method thereof

A technology of engineering plastics and composite materials, which is applied in the field of product PBT engineering plastic composite materials and its preparation, and flame retardant system, which can solve the problems of energy consumption, cumbersome preparation process, complex preparation process of compound flame retardants, etc., and achieve flame retardant Excellent performance, environmental friendliness, effect of improving heat resistance stability and hydrolysis resistance

Inactive Publication Date: 2009-06-17
BEIJING HUATENG NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the patent application has a certain novelty, the preparation process of the compound flame retardant is complicated, requiring cumbersome processes such as stirring, heating, and re-stirring
[0005] Patent application number (200810089638.1) uses a surface-modified hypophosphite flame retardant system. This patent application obtains the final halogen-free flame retardant by repeatedly grinding hypophosphite, high temperature treatment, and adding a silane coupling agent after cooling. There are also The disadvantages of cumbersome preparation process and energy consumption

Method used

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  • Halogen free flame-retarded system for engineering plastics preparation and PBT composite material and preparation method thereof
  • Halogen free flame-retarded system for engineering plastics preparation and PBT composite material and preparation method thereof
  • Halogen free flame-retarded system for engineering plastics preparation and PBT composite material and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Component A: nucleating agent organic rare earth phosphate salt nucleating agent (R is ethyl) 0.3 kg, antioxidant 0.24 kg 1010 and 0.36 kg 168, external lubricant talc powder 0.96 kg and silicone powder 0.24 kg, boric acid 0.3 kg of zinc, 0.3 kg of carbon black, 1.3 kg of PE; a total of 4 kg.

[0041] Component B: 16 kg, obtained by mixing 8 kg of B1, 4 kg of B2, and 4 kg of B3, Re is lanthanum.

[0042] 77 kilograms of PBT resin, 3 kilograms of toughening agent maleic anhydride grafted polyethylene.

[0043] After the above ingredients were mixed evenly, they were jointly introduced into a 53mm twin-screw extruder, extruded, cooled, and pelletized to obtain the final product of Example 1.

Embodiment 2

[0045] Component A: nucleating agent organic rare earth phosphate nucleating agent (R is ethyl) 0.6 kg, antioxidant 0.36 kg 1010 and 0.54 kg 168, external lubricant talcum powder 1.44 kg and silicone powder 0.36 kg, boric acid 0.45 kg of zinc, 0.3 kg of carbon black, 1.95 kg of PE; a total of 6 kg.

[0046] Component B: 14 kg, obtained by mixing 7 kg of B1, 3.5 kg of B2, and 3.5 kg of B3, Re is lanthanum.

[0047] 77 kilograms of PBT resin, 3 kilograms of toughening agent maleic anhydride grafted polyethylene.

[0048] After the above ingredients were mixed evenly, they were jointly introduced into a 53mm twin-screw extruder, extruded, cooled, and pelletized to obtain the final product of Example 2.

Embodiment 3

[0050] Component A: nucleating agent organic rare earth phosphate salt nucleating agent (R is ethyl) 0.3 kg, antioxidant 0.24 kg 1010 and 0.36 kg 168, external lubricant talc powder 0.96 kg and silicone powder 0.24 kg, boric acid 0.3 kg of zinc, 0.3 kg of carbon black, 1.3 kg of PE; a total of 4 kg.

[0051] Component B: 13 kg, obtained by mixing 6.5 kg of B1, 3.25 kg of B2, and 3.25 kg of B3, Re is cerium.

[0052] 70 kg of PBT resin, 10 kg of glass fiber, and 3 kg of toughening agent maleic anhydride grafted polyethylene.

[0053] After the above ingredients were uniformly mixed, they were jointly introduced into a 53mm twin-screw extruder, extruded, cooled, and pelletized to obtain the final product of Example 3.

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Abstract

The invention is used for non salt inflaming retarding system in preparation of PBT project plastics and a PBT complex materials and a preparation method thereof, belonging to a macromolecule material field. The PBT complex material is prepared by both drawing PBT resin, glass fiber, and toughener together with matching two components of A and B into a double screw extruder, extruding, cooling and particle slicing; wherein, A component is master batch prepared by mixing organic rare-earth organic phosphate salt nucleating agent,an antioxygen agent, an exterior lubricant and polyethylene; B component is non salt inflaming retarding system formed by mixing and matching three organic phosphonate (salt) according to a ratio of 2:1:1. The non salt inflaming retarding system of the invention has fine heat resistant, hydrolyzation resistant and inflaming retarding performance; products prepared by adding the inflaming retarding system has the advantages of excellent comprehensive performance, and being provided with environmental friendly, environment cross bonding matter content meeting European Union RoHS standard and being suitable to electronic electric equipment products.

Description

Technical field: [0001] The invention belongs to the field of polymer materials, and relates to polyethylene terephthalate (PBT) modified engineering plastics mainly used in electronic and electrical products, in particular to a flame retardant system in the preparation process of PBT modified engineering plastics, and products PBT engineering plastic composite material and preparation method thereof, Background technique: [0002] In PBT engineering plastics, flame retardants need to be added to improve the flame retardancy of PBT. For a long time, flame retardant polybutylene terephthalate (PBT) modified engineering plastics usually use brominated flame retardants, and the modified PBT with brominated flame retardants has high flame retardant efficiency and good flame retardant effect. advantage. However, brominated flame retardants contain environmentally related substances, which may have adverse effects on the environment. With the promulgation and implementation of ...

Claims

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Application Information

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IPC IPC(8): C08K5/5357C08K5/5333C08K5/52C08L67/02C08K13/04
Inventor 陈宇赵欣张宜鹏赵春梅毕立张艳明贾义军王朝晖曹亮
Owner BEIJING HUATENG NEW MATERIAL CO LTD
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