CN103374156A - High-strength cable sheath material and preparation method thereof - Google Patents

Abstract

The invention discloses a high-strength cable sheath material. The invention is characterized in that the high-strength cable sheath material is prepared from the following raw materials in parts by weight: 100-105 parts of neoprene CR121, 12-18 parts of nano silicon dioxide, 14-20 parts of celestite powder, 6-10 parts of wollastonite powder, 16-20 parts of semi-reinforced carbon black N774, 1-2 parts of 2-thiobenzimidazole, 2-3 parts of alum powder, 4-6 parts of zinc stearate, 4-5 parts of acetyl triethyl citrate, 2-4 parts of trioctyl trimellitate, 1-2 parts of N,N'-phenylenedimaleimide, 1-2 parts of sodium carboxymethyl cellulose, 0.6-1 part of aluminum nitride powder, 0.8-1 part of 3-glycidol ether oxypropyltrimethoxysilane, 1-2 parts of antioxidant DLTP, 1-2 parts of accelerator TMTD, 0.7-1 part of vulcanizing agent DCBP and 0.5-1 part of dibasic lead phosphite. The cable sheath material disclosed by the invention has favorable physical and mechanical properties, excellent oil resistance, high heat resistance, high flame retardancy, high sunlight resistance, high ozone resistance, high aging resistance and excellent acid/alkali resistance. The granules added in the preparation process enhance the compatibility among the raw materials, and further enhance the tearing strength, resilience and strength.

Description

A kind of high-strength cable sheath material and preparation method thereof

Technical field

The present invention relates generally to a kind of sheath material, relates in particular to a kind of high-strength cable sheath material and preparation method thereof.

Background technology

The over-all properties of chloroprene rubber is good, natural rubber and other synthetic rubber are all incomparable on a lot of performances, good physical and mechanical properties is arranged, oil resistant, heat-resisting, anti-combustion, anti-daylight, anti-ozone, ageing-resistant, acid and alkali-resistance, chemical-resistant reagent, therefore be used as widely cable jacket material, and CABLE MATERIALS is higher for the requirement of performance, to accept for a long time to be exposed to the sun, wind and rain, high temperature, low cold etc., corrosion-resistant for it, the performance requriements of the each side such as fire-retardant is all higher, therefore need a kind of new method to improve and strengthen the overall performance of chloroprene rubber, necessary for the development of cable cause.

Summary of the invention

The object of the invention just provides a kind of high-strength cable sheath material and preparation method thereof.

The present invention is achieved by the following technical solutions:

A kind of high-strength cable sheath material, it is comprised of the raw material of following weight parts

Chloroprene rubber CR121 100-105, nano silicon 12-18, celestite powder 14-20, wollastonite powder 6-10, semi-reinforcing hydrocarbon black N774 16-20,2-thiol group benzimidazolyl 1-2, alum powder 2-3, Zinic stearas 4-6, acetyl triethyl citrate 4-5, trioctyl trimellitate 2-4, N, N '-penylene bismaleimides 1-2, Xylo-Mucine 1-2, aluminum nitride powder 0.6-1,3-glycidyl ether oxygen base propyl trimethoxy silicane 0.8-1, anti-oxidant DLTP 1-2, Vulcanization accelerator TMTD 1-2, vulcanizing agent DCBP0.7-1, dibasic lead phosphite 0.5-1.

A kind of preparation method of high-strength cable sheath material may further comprise the steps:

Above-mentioned Xylo-Mucine is mixed with 3-glycidyl ether oxygen base propyl trimethoxy silicane, fully stir, be heated to 60-80 ℃, add nano silicon, aluminum nitride powder, stirring reaction 1-2 hour, add alum powder, trioctyl trimellitate, the rising temperature is to 90-100 ℃, be incubated 1-2 hour, be cooled to normal temperature, low speed 400-500 rev/min was disperseed the ball milling post-drying 20-30 minute, sieve, get the particle of 2-3 μ m; Above-mentioned chloroprene rubber CR121 and acetyl triethyl citrate, Zinic stearas are mixed to join in the Banbury mixer, descended mixing 2-4 minute at 82-90 ℃, add again particle obtained above and celestite powder, wollastonite powder, semi-reinforcing hydrocarbon black N774,2-thiol group benzimidazolyl, anti-oxidant DLTP, be under 85-90 ℃ in temperature, mixing 4-5 minute; Add each raw material of residue again, be 55-60 ℃ in temperature and descended mixing 2-3 minute, the discharging cooling namely gets described high-strength cable sheath material.

Advantage of the present invention is:

The cable jacket material that the present invention produces has good physical and mechanical properties, oil resistant, heat-resisting, anti-combustion, anti-daylight, anti-ozone, ageing-resistant, acid-proof alkaline is excellent, by add particle of the present invention in preparation, strengthen the consistency of each stock yard, further strengthened tearing toughness, rebound performance, intensity.

Embodiment

Embodiment 1

A kind of high-strength cable sheath material, it is comprised of the raw material of following weight parts (kilogram)

Chloroprene rubber CR121 105, nano silicon 18, celestite powder 20, wollastonite powder 10, semi-reinforcing hydrocarbon black N774 20,2-thiol group benzimidazolyl 2, alum powder 3, Zinic stearas 4, acetyl triethyl citrate 5, trioctyl trimellitate 4, N, a N '-penylene bismaleimides 2, Xylo-Mucine 1, aluminum nitride powder 0.6,3-glycidyl ether oxygen base propyl trimethoxy silicane 0.8, anti-oxidant DLTP 1, Vulcanization accelerator TMTD 2, vulcanizing agent DCBP0.7, dibasic lead phosphite 1.

A kind of preparation method of high-strength cable sheath material may further comprise the steps:

Above-mentioned Xylo-Mucine is mixed with 3-glycidyl ether oxygen base propyl trimethoxy silicane, fully stir, be heated to 80 ℃, add nano silicon, aluminum nitride powder, stirring reaction 2 hours adds alum powder, trioctyl trimellitate, rising temperature to 100 ℃, be incubated 2 hours, be cooled to normal temperature, 500 rev/mins of dispersions of low speed 30 minutes, ball milling post-drying, sieve, get the particle of 3 μ m; Above-mentioned chloroprene rubber CR121 and acetyl triethyl citrate, Zinic stearas are mixed to join in the Banbury mixer, descended mixing 4 minutes at 90 ℃, add again particle obtained above and celestite powder, wollastonite powder, semi-reinforcing hydrocarbon black N774,2-thiol group benzimidazolyl, anti-oxidant DLTP, be under 90 ℃ in temperature, mixing 5 minutes; Add each raw material of residue again, be 60 ℃ in temperature and descended mixing 3 minutes, the discharging cooling namely gets described high-strength cable sheath material.

Performance test:

Tensile strength: 18.9MPa;

Elongation at break: 715%;

Oil-proofness: 100 ℃ * 75h of 20# machine oil, elongation at break conservation rate 74.0%, tensile strength conservation rate 78.2%;

Anti-ozone: 25 ℃, 31h, ozone concn 0.024%, without cracking;

Ageing-resistant: 120 ℃, 200h, tensile strength conservation rate 91%, elongation at break conservation rate 81.1%.

Claims (2)

1. high-strength cable sheath material is characterized in that what it was comprised of the raw material of following weight parts:

Chloroprene rubber CR121 100-105, nano silicon 12-18, celestite powder 14-20, wollastonite powder 6-10, semi-reinforcing hydrocarbon black N774 16-20,2-thiol group benzimidazolyl 1-2, alum powder 2-3, Zinic stearas 4-6, acetyl triethyl citrate 4-5, trioctyl trimellitate 2-4, N, N '-penylene bismaleimides 1-2, Xylo-Mucine 1-2, aluminum nitride powder 0.6-1,3-glycidyl ether oxygen base propyl trimethoxy silicane 0.8-1, anti-oxidant DLTP 1-2, Vulcanization accelerator TMTD 1-2, vulcanizing agent DCBP0.7-1, dibasic lead phosphite 0.5-1.

2. the preparation method of a high-strength cable sheath material as claimed in claim 1 is characterized in that may further comprise the steps:

Above-mentioned Xylo-Mucine is mixed with 3-glycidyl ether oxygen base propyl trimethoxy silicane, fully stir, be heated to 60-80 ℃, add nano silicon, aluminum nitride powder, stirring reaction 1-2 hour, add alum powder, trioctyl trimellitate, the rising temperature is to 90-100 ℃, be incubated 1-2 hour, be cooled to normal temperature, low speed 400-500 rev/min was disperseed the ball milling post-drying 20-30 minute, sieve, get the particle of 2-3 μ m; Above-mentioned chloroprene rubber CR121 and acetyl triethyl citrate, Zinic stearas are mixed to join in the Banbury mixer, descended mixing 2-4 minute at 82-90 ℃, add again particle obtained above and celestite powder, wollastonite powder, semi-reinforcing hydrocarbon black N774,2-thiol group benzimidazolyl, anti-oxidant DLTP, be under 85-90 ℃ in temperature, mixing 4-5 minute; Add each raw material of residue again, be 55-60 ℃ in temperature and descended mixing 2-3 minute, the discharging cooling namely gets described high-strength cable sheath material.