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Ultra-soft low-smoke halogen-free flame-retardant polyolefin cable material and preparation method thereof

A technology of polyolefin cable material and polyolefin resin, which is used in circuits, electrical components, plastic/resin/wax insulators, etc., can solve the problems of cable bending, poor flexibility of polyolefin cables, and large amount of flame retardants. The effect of non-polar enhancement, improved mechanical properties, and improved compatibility

Pending Publication Date: 2020-09-11
上海方之德新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the above-mentioned existing technical solutions have the following defects: the addition of a large amount of flame retardants, although the flame retardancy of the polyolefin cable material has been improved, the polyolefin cable material has poor flexibility, which is not conducive to the production of polyolefin cable materials. Cables prepared from cable materials are bent during use

Method used

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  • Ultra-soft low-smoke halogen-free flame-retardant polyolefin cable material and preparation method thereof

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Effect test

Embodiment 1

[0031] An ultra-soft low-smoke halogen-free flame-retardant polyolefin cable material, the raw material ratio of which is shown in Table 1. The preparation method of the ultra-soft low-smoke halogen-free flame-retardant polyolefin cable material includes the following steps:

[0032] (1) Weigh pentaerythritol, lanthanum carbonate, and polyphosphoramide in proportion, place them in a mixer, and stir at a speed of 955r / min for 6.5min at a temperature of 102.5°C, then add 10% of the total mass of the phosphate ester coupling agent. 1 / 3, then stirred at a speed of 955r / min for 9 minutes, and set aside;

[0033] (2) Take magnesium hydroxide in proportion, add deionized water and be mixed with the slurry that mass fraction is 5%, add 1 / 3 of the total mass of dicyandiamide, polyamide and phosphoric acid ester coupling agent wherein, with 955r / Stir at a speed of 17.5 min, vacuum filter, place the filter cake in a vacuum drying oven, dry at 105°C for 9.5 h, and pulverize through a 150...

Embodiment 2

[0036] An ultra-soft low-smoke halogen-free flame-retardant polyolefin cable material, the raw material ratio of which is shown in Table 1. The preparation method of the ultra-soft low-smoke halogen-free flame-retardant polyolefin cable material includes the following steps:

[0037] (1) Weigh pentaerythritol, lanthanum carbonate and polyphosphoramide in proportion, place them in a mixer, stir at a speed of 950r / min for 5min at a temperature of 100°C, and then add 1% of the total mass of the phosphate coupling agent. / 3, then stirred at a speed of 950r / min for 8min, and set aside;

[0038] (2) Take magnesium hydroxide in proportion, add deionized water and be mixed with the slurry that the mass fraction is 5%, add 1 / 3 of the total mass of dicyandiamide, polyamide and phosphoric acid ester coupling agent wherein, with 950r / Stir at a speed of min for 15 minutes, vacuum filter, place the filter cake in a vacuum drying oven, dry at 105°C for 9 hours, and pulverize through a 150-m...

Embodiment 3

[0041] An ultra-soft low-smoke halogen-free flame-retardant polyolefin cable material, the raw material ratio of which is shown in Table 1. The preparation method of the ultra-soft low-smoke halogen-free flame-retardant polyolefin cable material includes the following steps:

[0042] (1) Weigh pentaerythritol, lanthanum carbonate and polyphosphoramide in proportion, place them in a mixer, stir at a speed of 960r / min for 8min at a temperature of 105°C, and then add 1% of the total mass of the phosphate coupling agent. / 3, then stirred at a speed of 960r / min for 10min, and set aside;

[0043] (2) Take magnesium hydroxide in proportion, add deionized water and be mixed with the slurry that the mass fraction is 5%, add 1 / 3 of the total mass of dicyandiamide, polyamide and phosphoric acid ester coupling agent wherein, with 960r / Stir at a speed of min for 20 minutes, vacuum filter, place the filter cake in a vacuum drying oven, dry at 105°C for 10 hours, and pulverize through a 150...

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Abstract

The invention relates to an ultra-soft low-smoke halogen-free flame-retardant polyolefin cable material and a preparation method thereof, and relates to the technical field of cable materials. Raw materials of the ultra-soft low-smoke halogen-free flame-retardant polyolefin cable material specifically comprise the following components (by weight): 135-145 parts of polyolefin resin, 15-25 parts ofan elastomer, 10-20 parts of magnesium hydroxide, 2-5 parts of dicyandiamide, 2-5 parts of polyamide, 14-18 parts of pentaerythritol, 10-20 parts of lanthanum carbonate, 7-13 parts of ammonium polyphosphate, 1-5 parts of a smoke suppressant, 0.5-2.5 parts of a dispersing agent, 0.5-2.5 parts of an accelerant and 0.5-2.5 parts of a vulcanizing agent. The cable material provided by the invention hasgood flexibility, so that the polyolefin cable material is convenient to bend in the use process; and in addition, the cable material provided by the invention has good flame retardant property and smoke suppression property.

Description

technical field [0001] The invention relates to the technical field of cable materials, in particular to an ultra-soft, low-smoke, halogen-free, flame-retardant polyolefin cable material and a preparation method thereof. Background technique [0002] In recent years, with the country's emphasis on environmental protection and safety, low-smoke and halogen-free cables are not only required in some large buildings or public places, but also have higher requirements for wires and cables used in rolling stock. On the one hand, they must have excellent Flame retardant performance, the amount of smoke and corrosive gas emissions should be low when burning to prevent secondary disasters caused by smoke. On the other hand, it is required to have the characteristics of heat resistance, stress crack resistance, and long service life. Polyolefin has good dielectric properties, mechanical properties, low temperature resistance, processability and chemical stability, and has been widely...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08L23/12C08L23/16C08K13/06C08K3/26C08K3/32C08K9/04C08K3/22C08K3/24H01B3/44
CPCC08L23/06H01B3/441C08L2201/02C08L2201/22C08L2203/202C08L2205/035C08L2205/025C08K2003/323C08K2003/2224C08K2003/2255C08L23/12C08L23/16C08K13/06C08K3/26C08K3/32C08K9/04C08K9/08C08K3/22C08K3/24
Inventor 董建东何亚丽黄勇
Owner 上海方之德新材料有限公司
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