Halogen-free flame-retardant POE material

Abstract

The invention discloses a halogen-free flame-retardant POE material and a preparation method thereof. The halogen-free flame-retardant POE material is prepared from, by weight, 100 parts of POE resin, 25-60 parts of a halogen-free composite flame retardant and 0.1-1.0 part of an antioxidant. The halogen-free composite flame retardant is prepared from active ammonium polyphosphate (APP), melamine cyanuric acid (MCA) and tri(2-hydroxyethyl)-isocyanuric acid ester according to the weight ratio of 100 to 8-20 to 8-20. The antioxidant is a composite antioxidant prepared from an antioxidant 1010 and an antioxidant 168 according to the weight ratio of 1:1 to 1:3. The halogen-free flame-retardant POE material has a better flame-retardant effect (oxygen index is greater than 30, and vertical burning reaches level V-0) and has higher mechanical properties, and especially the elongation at break can be up to 850% or above. In addition, the halogen-free flame-retardant POE material has better thermal ageing resistance properties.

Description

[0001] This application is a divisional application of the invention patent application with the application number 201410391702.7, the application date is August 11, 2014, and the invention name is "halogen-free flame-retardant POE material and its preparation method". technical field [0002] The invention relates to a polymer material and a preparation method thereof, in particular to a halogen-free flame-retardant POE material and a preparation method thereof. Background technique [0003] POE resin is a new type of polyolefin elastomer polymerized by DOW Chemical Company of the United States with metallocene as a catalyst. Compared with other polyolefin elastomers, it has the advantages of low price and easy molding and processing. It is widely used in automobiles, electronic appliances, building seals, sports, etc. Equipment and polymer toughening modification and other fields. [0004] POE is a flammable material, and as its application continues to increase, it is im...

AI Technical Summary

Problems solved by technology

The disadvantages of the halogen-free flame-retardant POE composite material are: (1) A better flame-retardant effect is obtained with a flame retardant dosage higher than that of POE, which reduces the mechanical properties of the POE composite material and requires a modifier to improve the material. Mechanical properties, while increasing the specific gravity of POE composites, further increasing production costs

(2) In the case of adding a modifier, the elongation at break is still low (less than 650%), which limits the application

(3) Poor heat aging resistance. After aging for 168 hours at 80°C, the rate of change in tensile strength is greater than 10%, and the rate of change in elongation at break is greater than 15%.