Plastic material with high flame retardancy

Abstract

The invention relates to the technical field of plastic materials, especially to a plastic material with high flame retardancy. The plastic material with high flame retardancy is prepared from the following ingredients (by weight): 25.8-26% of SEBS, 14-14.1% of naphthenic oil, 2.35-2.45% of silicones powder, 10.92-11.16% of PP, 3.55-3.63% of POE, 5.93-6.08% of MCA, 36.8-37.75% of a flame retardant, 0.015-0.022% of a stabilizing agent, and 0.018-0.025% of a stabilizer. The plastic material prepared from the above ingredients has good flame retardancy and mechanical properties. A finished product prepared from the plastic material is easy for processing molding. During the processing, no unfavorable smell will be generated. Meanwhile, the plastic product prepared from the compound will not give off toxic substances if electrified and heated or exposed to the sunlight for a long time, is green and environment-friendly, and accords with the strategy of sustainable development. The compound is suitable for being used as a cable material.

Description

technical field [0001] The invention relates to the technical field of plastic materials, in particular to a high flame-retardant plastic material. Background technique [0002] PVC is a commonly used insulating material for cables. However, PVC has poor thermal stability. Therefore, when the cable is energized for a long time and exposed to sunlight, the outer layer of PVC insulating material is prone to aging and failure, causing safety hazards. At the same time, PVC insulating material During the long-term heating and aging process, toxic chlorine-containing organic compounds will be released, polluting the environment, and not in line with the concept of sustainable development. [0003] With the increasing awareness of environmental protection, people are constantly looking for other materials. The SEBS-based blend has excellent weather resistance, aging resistance and processing properties. However, SEBS is flammable. Therefore, the SEBS-based resistance Fuel cable ma...

AI Technical Summary

Problems solved by technology

[0002] PVC is a commonly used insulating material for cables. However, PVC has poor thermal stability. Therefore, when the cable is energized for a long time and exposed to sunlight, the outer layer of PVC insulating material is prone to aging and failure, causing safety hazards. At the same time, PVC insulating material During the long-term heating and aging process, toxic chlorine-containing organic compounds will be released, polluting the environment, and not in line with the concept of sustainable development

[0003] With the increasing awareness of environmental protection, people are constantly looking for other materials. The SEBS-based blend has excellent weather resistance, aging resistance and processing properties. However, SEBS is flammable. Therefore, the SEBS-based resistance Fuel cable materials are becoming a research hotspot. In the existing technology, flame retardant cable materials based on SEBS are mainly divided into two categories, (1) SEBS + other thermoplastics (such as PP) + halogen-free flame retardants + other additives ; For example, patents CN101955626A, CN1772807A, CN101629007A, and CN101735546A respectively describe different proportions of SEBS+PP+ different types of halogen-free intumescent flame retardants + thermoplastic elastomer compounds and their preparation methods; (2) SEBS+ char-forming agent PPO+ Phosphate + flame retardant + other additives; for example, patents US2009 / 0088502A1, US2009 / 00884577A1, CN101824201A, and CN100509938C respectively describe thermoplastic elastomer compounds and Its preparation method; (1) Since SEBS and PP itself do not have the function of charring, the addition of flame retardant is too large, resulting in a serious decline in the performance, appearance and processability of the composite material. (2) Among them, due to the introduction of PPO, which has a carbon-forming function during combustion, the flame retardancy and mechanical properties are better, but this kind of blend is difficult to process, and the material has an unpleasant odor due to the addition of modified PPO

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