Efficient halogen-free flame retardant rubber system as well as preparation method thereof

Abstract

The invention provides an efficient halogen-free flame retardant rubber system which comprises the following components in parts by weight: 100 parts of rubber, 30-50 parts of a fortifier, 0-10 parts of a structural controller, 0.5-2 parts of a vulcanizing agent, 0.1-2 parts of an accelerant, 1-20 parts of a flame retardant and 1-20 parts of a synergist. The tensile strength of the rubber system is 5.4-33.8MPa, LOI is 28.9-45.5% and UL-94 is V-1 to V-0. The invention further provides a preparation method of the system. According to the rubber system provided by the invention, as the flame retardant and the flame retardant synergist which are matched with the rubber system, since the addition is a little, mechanical property is hardly affected and a good flame retardant effect can be further realized.

Description

technical field

[0001] The invention belongs to the technical field of flame-retardant rubber systems and their preparation, and in particular relates to a high-efficiency halogen-free intumescent flame-retardant rubber system and a preparation method thereof. Background technique

[0002] Rubber is the basic raw material of the rubber industry. Because its molecular chain can be cross-linked, the cross-linked rubber has the ability to recover quickly when it is deformed by an external force, and has good physical and mechanical properties and chemical stability. Blending is carried out to learn from each other to obtain a rubber blend with better performance. Therefore, it has been widely used in the manufacture of tires, hoses, tapes, cables, medical equipment and other rubber products since it was discovered and industrialized. However, rubber needs to be vulcanized during the processing process. Once the vulcanized pure rubber cannot self-extinguish after burning, it wil...

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