PET film with high flame retardant property

Abstract

A PET film with high flame retardant property comprises the following raw materials in parts by weight: 2-4 parts of decabromodiphenyl ethane, 0.7-1.4 parts of a 1010 antioxidant, 0.2-0.7 parts of a 168 antioxidant, 6-10 parts of magnesium hypophosphite, 1-1.5 parts of tetrahydrofuran, 2-4 parts of other additives, 3-5 parts of PET, 6-8 parts of glass fibers, 11-16 parts of nano montmorillonite, 3.5-4.5 parts of a silane coupling agent, 1.3-4.3 parts of silicon dioxide, 2 parts of decabromodiphenyl ethane, 0.7 parts of a 1010 antioxidant, 0.2 parts of a 168 antioxidant, and 6 parts of magnesium hypophosphite. A PET flame-retardant film product prepared from a PET flame-retardant mixed material and a toughening mixed material is good in toughness, high in tensile strength and good in flame-retardant effect, toughness and compatibility are achieved through the glass fibers, the nano montmorillonite, the silane coupling agent and the silicon dioxide, and superiority and characteristics ofthe PET film are kept.

Description

technical field [0001] The invention relates to the field of stainless steel, in particular to a PET film with high flame retardancy. Background technique [0002] PET flame retardant film is a new technology and technical problem at home and abroad. In the world, there is only Mitsubishi in Japan that is flame-retardant V0 grade in the true sense and has excellent mechanical properties. Its technology is in a monopoly position in the confidential field, and its products are expensive. Domestic research is also being carried out to introduce phosphate esters into the PET molecular framework by means of transesterification, but the actual operation is very inconvenient, the cost is high, and it is difficult to achieve the true V0 level, so it is difficult to expand at this stage. [0003] People try to use traditional convenient and practical additive flame retardants, but there are compatibility, dispersion, poor interface and persistence, and toxicity to operators, especi...

AI Technical Summary

Problems solved by technology

Its technology is in a monopoly position in the confidential field, and its products are expensive

China is also studying the use of transesterification to introduce phosphate esters into the PET molecular skeleton, but the actual operation is very inconvenient, the cost is high, and it is difficult to achieve a true V0 level, so it is difficult to expand at this stage

[0003] People try to use traditional convenient and practical additive flame retardants, but there are compatibility, dispersion, poor interface and persistence, and toxicity to operators, especially the poor toughness has no practical significance

In order to solve these problems, people use flame-retardant masterbatches, and some people use PE, PP, and EVA as carriers, but there are problems of poor compatibility and toughness.

For this reason, people use PET as the carrier, but the PET flame-retardant film made has poor toughness and has no practical significance.

So people look for various toughening agents, some toughening agents are added, but make the product brittle, and some toughening agents are added, which improves, but the effect is not large, the cost is too high, and there is no practical value

In addition, when using flame retardant masterbatch, its addition ratio is difficult to grasp, and the addition ratio is small, requiring a large amount of additives such as flame retardant in the masterbatch