CN105111666A - Flame-resistant synergy data line sheath material having good processing fluidity and preparation method thereof - Google Patents

Abstract

The invention discloses a flame-resistant synergy data line sheath material having good processing fluidity. The flame-resistant synergy data line sheath material is prepared from, by weight, 100-104 parts of SEBS, 65-68 parts of paraffin oil, 29-31 parts of polypropylene, 21-23 parts of polypropylene grafted maleic anhydride, 3-4 parts of antioxidant B215, 81-83 parts of magnesium hydrate, 4.3-5 parts of expanded graphite, 1.6-1.7 parts of silane coupling agent A-171, 8-9 parts of anhydrous ethanol, 3-5 parts of brominated epoxy resin, 7-9 parts of clay, an appropriate amount of water, 5-6.5 parts of white carbon black, 3-4 parts of oxidized polyethylene wax, 1-1.2 parts of sodium dodecyl sulfate and 0.1-0.12 part of benzoyl peroxide. The flame-resistant synergy data line sheath material uses a paraffin oil modified SEBS and polypropylene blend as a basic body, has good fluidity in extrusion processing by adjusting component proportioning and adopting a production process, the production efficiency is improved, and energy consumption is reduced. In addition, the flame-resistant synergy data line sheath material is remarkable in flame-resistant effect and safe and is environmentally friendly.

Description

Fire-resistant synergistic jacket for data lines material that a kind of processing flowability is good and preparation method thereof

Technical field

The present invention relates to technical field of polymer materials, particularly relate to good fire-resistant synergistic jacket for data lines material of a kind of processing flowability and preparation method thereof.

Background technology

At present, the electric wire sheath material of domestic electronic enterprises widespread use, Insulation Material and electronic plug material more than 90% adopt PVC.But from 1 day July in 2006, European Union just promulgated a decree and has forbidden halogen-containing flame retardant, and the electric equipment products of some objectionable impurities such as heavy metal enters European market, and the outlet of this measure to China's electric equipment products creates and have a strong impact on.European Union is while its ban of issue, and abroad some companies have started to promote its product to China's electrical equipment industry industry energetically, attempt to seize China market, develop halogen-free flame-retardant environment-friendly electric wire significant undoubtedly under this form.

Styrene ethylene butadiene-styrene block copolymer (SEBS) is a kind of broad-spectrum thermoplastic elastomer, polypropylene (PP) is used to carry out modification, a kind of thermoplastic elastomer TPE having the characteristic of plastics and rubber concurrently that can make, because TPE has snappiness, high strength, low density, the features such as easy processing, have good insulativity simultaneously, resistant of high or low temperature, fatigue resistance, good hand touch, free from extraneous odour, become the preferred material that electric wire field substitutes PVC, but the halogen-free flameproof of TPE is a difficult problem, how to prepare the important topic that the high flame retarded thermoplastic's elastomerics of over-all properties has become its Application Areas.

Summary of the invention

The object of the invention is exactly the defect in order to make up prior art, fire-resistant synergistic jacket for data lines material providing a kind of processing flowability good and preparation method thereof.

The present invention is achieved by the following technical solutions:

The fire-resistant synergistic jacket for data lines material that processing flowability is good, be made up of the raw material of following weight part: SEBS100-104, paraffin oil 65-68, polypropylene 29-31, polypropylene grafted maleic anhydride 21-23, oxidation inhibitor B2153-4, magnesium hydroxide 81-83, expanded graphite 4.3-5, silane coupling A-1711.6-1.7, dehydrated alcohol 8-9, brominated epoxy resin 3-5, clay 7-9, water are appropriate, white carbon black 5-6.5, oxidized polyethlene wax 3-4, sodium lauryl sulphate 1-1.2, benzoyl peroxide 0.1-0.12.

The fire-resistant synergistic jacket for data lines material that described a kind of processing flowability is good, be made up of following concrete steps:

(1) by magnesium hydroxide in air dry oven, at 110 DEG C dry 4 hours for subsequent use; Silane coupling A-171 is added dehydrated alcohol, be sprayed on dry magnesium hydroxide after stirring 30 minutes with the speed of 500 revs/min, then send in high-speed mixer, add expanded graphite, with the speed of 2000 revs/min, stir after 30 minutes at normal temperatures, be warming up to 60 DEG C, continue stirring to take out for 30 minutes, more namely drying obtains compound flame retardant in 3 hours at 110 DEG C;

(2) SEBS, polypropylene, polypropylene grafted maleic anhydride are put into air dry oven respectively, at 80 DEG C dry 4 hours for subsequent use; Dried SEBS is mixed with paraffin oil, puts into high-speed mixer, be uniformly mixed 20 minutes with the speed of 1000 revs/min, leave standstill 12 hours after taking out, treat that SEBS is fully swelling in paraffin oil, obtain oiliness SEBS; Polypropylene, polypropylene grafted maleic anhydride being added two roll temperature is in the open mill of 170 DEG C, oiliness SEBS, oxidation inhibitor B215 is added after plasticating 10 minutes, continue mixing 20 minutes, evenly rear slice to be mixed, put into air dry oven after pulverizing dry 2 hours, namely obtain mixed resin;

(3) clay is put into baking oven, with the temperature of 100 DEG C white carbon black mixing after dry 2 hours, put into pulverizer, cross 200 mesh sieves, then the mixed powder after pulverizing is added the water of total amount 1.5 times amount, stir formation slurry, add sodium lauryl sulphate, pour out after stirring 20 minutes with the speed of 1000 revs/min, be spray dried to powder, obtain mixture;

(4) compound flame retardant, mixed resin, mixture and all the other remaining components are put into high-speed mixer, it is 170 DEG C in temperature, discharging after mixing 20 minutes under the speed of 500 revs/min, material is fed in vulcanizing press, hot pressing at 180 DEG C of temperature, then room temperature is colded pressing, is ground into particle after slice, finally sends in twin screw extruder by particle, extruding pelletization, dries 4 hours and get final product under 80 DEG C of conditions.

Advantage of the present invention is: the present invention adds the magnesium hydroxide of surface modification, in hydrophobic effect, composite with expanded graphite, brominated epoxy resin, there is good fire-resistant synergistic effect, carbon yield and the oxygen index of system can be improved, can the effectively release of trap heat and the conduction of inflammable gas, reduce the amount of being fuming; Can obviously reduce particle agglomeration effect simultaneously, can disperse more even in base-material, improve the consistency with base-material interface, improve viscosity and the processing characteristics of compound, improve the mechanical property of compound.

The present invention with paraffin oil modified SEBS and polyacrylic blend for matrix, by adjusting component proportioning and production technique, prepared product compared with prior art, extrude and add good fluidity in man-hour, processing load greatly reduces thus improves production efficiency, reduces energy consumption, and product flame retardant effect is remarkable simultaneously, and safety and environmental protection, can supply lead, data line etc. be widely used in.

Embodiment

The fire-resistant synergistic jacket for data lines material that processing flowability is good, is made up of the raw material of following weight part (kilogram): SEBS100, paraffin oil 65, polypropylene 29, polypropylene grafted maleic anhydride 21, oxidation inhibitor B2153, magnesium hydroxide 81, expanded graphite 4.3, silane coupling A-1711.6, dehydrated alcohol 8, brominated epoxy resin 3, clay 7, water are appropriate, white carbon black 5, oxidized polyethlene wax 3, sodium lauryl sulphate 1, benzoyl peroxide 0.1.

The fire-resistant synergistic jacket for data lines material that described a kind of processing flowability is good, be made up of following concrete steps:

(1) by magnesium hydroxide in air dry oven, at 110 DEG C dry 4 hours for subsequent use; Silane coupling A-171 is added dehydrated alcohol, be sprayed on dry magnesium hydroxide after stirring 30 minutes with the speed of 500 revs/min, then send in high-speed mixer, add expanded graphite, with the speed of 2000 revs/min, stir after 30 minutes at normal temperatures, be warming up to 60 DEG C, continue stirring to take out for 30 minutes, more namely drying obtains compound flame retardant in 3 hours at 110 DEG C;

(2) SEBS, polypropylene, polypropylene grafted maleic anhydride are put into air dry oven respectively, at 80 DEG C dry 4 hours for subsequent use; Dried SEBS is mixed with paraffin oil, puts into high-speed mixer, be uniformly mixed 20 minutes with the speed of 1000 revs/min, leave standstill 12 hours after taking out, treat that SEBS is fully swelling in paraffin oil, obtain oiliness SEBS; Polypropylene, polypropylene grafted maleic anhydride being added two roll temperature is in the open mill of 170 DEG C, oiliness SEBS, oxidation inhibitor B215 is added after plasticating 10 minutes, continue mixing 20 minutes, evenly rear slice to be mixed, put into air dry oven after pulverizing dry 2 hours, namely obtain mixed resin;

(3) clay is put into baking oven, with the temperature of 100 DEG C white carbon black mixing after dry 2 hours, put into pulverizer, cross 200 mesh sieves, then the mixed powder after pulverizing is added the water of total amount 1.5 times amount, stir formation slurry, add sodium lauryl sulphate, pour out after stirring 20 minutes with the speed of 1000 revs/min, be spray dried to powder, obtain mixture;

(4) compound flame retardant, mixed resin, mixture and all the other remaining components are put into high-speed mixer, it is 170 DEG C in temperature, discharging after mixing 20 minutes under the speed of 500 revs/min, material is fed in vulcanizing press, hot pressing at 180 DEG C of temperature, then room temperature is colded pressing, is ground into particle after slice, finally sends in twin screw extruder by particle, extruding pelletization, dries 4 hours and get final product under 80 DEG C of conditions.

The jacket for data lines material that the present invention produces, after testing, reaches following index: flame retardant properties reaches UL-94V-0 level, oxygen index >=30.8%, tensile strength >=14.3MPa, fracture extension rate >=253%.

Claims (2)

1. the fire-resistant synergistic jacket for data lines material that a processing flowability is good, it is characterized in that, be made up of the raw material of following weight part: SEBS100-104, paraffin oil 65-68, polypropylene 29-31, polypropylene grafted maleic anhydride 21-23, oxidation inhibitor B2153-4, magnesium hydroxide 81-83, expanded graphite 4.3-5, silane coupling A-1711.6-1.7, dehydrated alcohol 8-9, brominated epoxy resin 3-5, clay 7-9, water are appropriate, white carbon black 5-6.5, oxidized polyethlene wax 3-4, sodium lauryl sulphate 1-1.2, benzoyl peroxide 0.1-0.12.

2. the fire-resistant synergistic jacket for data lines material that a kind of processing flowability is good according to claim 1, is characterized in that, be made up of following concrete steps:

(1) by magnesium hydroxide in air dry oven, at 110 DEG C dry 4 hours for subsequent use; Silane coupling A-171 is added dehydrated alcohol, be sprayed on dry magnesium hydroxide after stirring 30 minutes with the speed of 500 revs/min, then send in high-speed mixer, add expanded graphite, with the speed of 2000 revs/min, stir after 30 minutes at normal temperatures, be warming up to 60 DEG C, continue stirring to take out for 30 minutes, more namely drying obtains compound flame retardant in 3 hours at 110 DEG C;

(2) SEBS, polypropylene, polypropylene grafted maleic anhydride are put into air dry oven respectively, at 80 DEG C dry 4 hours for subsequent use; Dried SEBS is mixed with paraffin oil, puts into high-speed mixer, be uniformly mixed 20 minutes with the speed of 1000 revs/min, leave standstill 12 hours after taking out, treat that SEBS is fully swelling in paraffin oil, obtain oiliness SEBS; Polypropylene, polypropylene grafted maleic anhydride being added two roll temperature is in the open mill of 170 DEG C, oiliness SEBS, oxidation inhibitor B215 is added after plasticating 10 minutes, continue mixing 20 minutes, evenly rear slice to be mixed, put into air dry oven after pulverizing dry 2 hours, namely obtain mixed resin;

(3) clay is put into baking oven, with the temperature of 100 DEG C white carbon black mixing after dry 2 hours, put into pulverizer, cross 200 mesh sieves, then the mixed powder after pulverizing is added the water of total amount 1.5 times amount, stir formation slurry, add sodium lauryl sulphate, pour out after stirring 20 minutes with the speed of 1000 revs/min, be spray dried to powder, obtain mixture;

(4) compound flame retardant, mixed resin, mixture and all the other remaining components are put into high-speed mixer, it is 170 DEG C in temperature, discharging after mixing 20 minutes under the speed of 500 revs/min, material is fed in vulcanizing press, hot pressing at 180 DEG C of temperature, then room temperature is colded pressing, is ground into particle after slice, finally sends in twin screw extruder by particle, extruding pelletization, dries 4 hours and get final product under 80 DEG C of conditions.