Low-smoke halogen-free flame-retardant polypropylene cable material and preparation method thereof
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A flame retardant polypropylene and cable material technology, applied in circuits, electrical components, plastic/resin/wax insulators, etc., can solve the problems of poor insulation performance, high smoke density, high TPU price, etc., and achieve excellent flame retardant performance. Effect
Active Publication Date: 2015-05-20
JIANGSUSNGSHANG CABLE GROUP
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Problems solved by technology
[0004] The invention solves the problems of poor insulation performance, high smoke density and high price of TPU in the prior art, and aims to provide a low-smoke, halogen-free, flam
Method used
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Embodiment 1
[0029] A low-smoke halogen-free flame-retardant polypropylene cable material is composed of the following raw materials in parts by weight: 27 parts of random copolymerized polypropylene (melt flow rate is 5g / 10min), propylene-ethylene copolymer elastomer ( Melt flow rate is 8g / 10min, density is 0.876g / cm 3 , Mw / Mn is 1.9) 33 parts, 40 parts of piperazine phosphate intumescent flame retardant FP2100J, 5 parts of PP-g-MAH, 0.15 parts of DCP, 1.0 parts of TMPTMA, 3 parts of silicone masterbatch, 1 part of antioxidant 1010, 3 parts of nano-montmorillonite.
Embodiment 2
[0031] A low-smoke halogen-free flame-retardant polypropylene cable material is composed of the following raw materials in parts by weight: 20 parts of random copolymerized polypropylene (melt flow rate is 12g / 10min), ethylene-octene copolymer (melt The volume flow rate is 18g / 10min and the density is 0.9g / cm 3 , Mw / Mn is 2.5) 10 parts, styrene-ethylene-butadiene-styrene copolymer (melt flow rate is 2g / 10min, density is 0.89g / cm 3 , Mw / Mn is 1.8) 30 parts, piperazine phosphate intumescent flame retardant FP2100J 40 parts, SEBS-g-MAH 5 parts, DCP 0.2 parts, TAIC 1.5 parts, silicone masterbatch 2 parts, antioxidant 1010 1 part , 0.5 parts of antioxidant DLTP, 3 parts of nano-montmorillonite.
Embodiment 3
[0033] A low-smoke halogen-free flame-retardant polypropylene cable material is composed of the following raw materials in parts by weight: 10 parts of isotactic polypropylene (melt flow rate is 12g / 10min), impact polypropylene (melt flow rate 6g / 10min) 10 parts, propylene-ethylene copolymer elastomer (melt flow rate is 8g / 10min, density is 0.88g / cm 3 , Mw / Mn is 1.9) 45.8 parts, piperazine phosphate intumescent flame retardant Budit3167 40 parts, phosphoric acid flame retardant BAPP 4 parts, PBP-g-MAH 3.5 parts, DCP 0.15 parts, DVB 2 parts, silicone masterbatch 3 1 part, 1 part of antioxidant 1010, 1.5 parts of antioxidant DLTP, 1 part of nano-montmorillonite.
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Abstract
The invention provides a low-smoke halogen-free flame-retardant polypropylene cable material and a preparation method thereof. The low-smoke halogen-free flame-retardant polypropylene cable material is prepared from the following raw materials in parts by mass: 20-40 parts of polypropylene resin, 30-60 parts of polyolefin thermoplastic elastomer, 30-60 parts of a P-N intumescent flame retardant, 2-8 parts of a high molecular weight compatibilizer, 0.01-0.8 part of an initiator, 0.01-8 parts of a cross-linking agent, 0.01-2.5 parts of an antioxidant, 1-5 parts of processing aid and 0.01-3 parts of a nucleating agent. The preparation method comprises the steps of proportionally mixing the polypropylene resin, the P-N intumescent flame-retardant, the cross-linking agent, the antioxidant and the nucleating agent to obtain a pre-mixture; proportionally mixing the pre-mixture, the polyolefin thermoplastic elastomer, the high molecular weight compatibilizer, the initiator and the processing aid to obtain the cable material. The finished product produced from the cable material has the tensile strength of greater than 8MPa; the elongation at break and 5% of secant modulus of the finished product satisfy ASTM D638, and the 150 DEG C thermal deformation rate of the finished product satisfies UL1581; in addition, the flame retardance of the finished product passes through the VW-1 test.
Description
technical field [0001] The invention belongs to the field of cable materials, and in particular relates to a low-smoke halogen-free flame-retardant polypropylene cable material and a preparation method thereof. The thermal deformation rate of the cable at 150°C is less than 50% (UL1581). Background technique [0002] The popularization of personal electronic products has brought new "vitality" to the development of the wire and cable industry - a large number of flexible insulating materials are used in the data lines or connecting lines between mobile terminals and PCs. Although such materials currently on the market have good mechanical and mechanical properties and flexibility, most of these materials will have a significant decrease in elongation at break and electrical properties after high-temperature heat aging, which brings users a lot of problems. Many inconveniences and unsafe factors. [0003] Usually, the above-mentioned flexible insulating material is processed...
Claims
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