CN105111664A - Modified limestone added data line sheath material having synergistic effect and preparation method thereof - Google Patents

Abstract

The invention discloses a modified limestone added data line sheath material having the synergistic effect. The modified limestone added 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 hydroxide, 4.3-5 parts of expanded graphite, 1.6-1.7 parts of silane coupling agent A-171, 8-9 parts of anhydrous ethanol, 0.4-0.5 part of epoxidized soybean oil, 13-15 parts of limestone, 2-3 parts of cottonseed oil and 2-3 parts of cationic polyacrylamide. The modified limestone added data line sheath material is scientific and reasonable in component proportioning, uses a paraffin oil modified SEBS and polypropylene blend as a basic body and includes a series of modified packings, the product made from the modified limestone added data line sheath material has high tensile strength, high impact resistance, good heat stability and good processing fluidity, and the modified limestone added data line sheath material is remarkable in flame-resistant effect, easy to process, good in hand touch feeling and capable of being widely applied to data lines, peripheral lines of computers and the like.

Description

A kind of have jacket for data lines material of the interpolation modified lime stone of synergism and preparation method thereof

Technical field

The present invention relates to technical field of polymer materials, particularly relate to and a kind of there is jacket for data lines material of the interpolation modified lime stone of synergism 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, provides a kind of and has jacket for data lines material of the interpolation modified lime stone of synergism and preparation method thereof.

The present invention is achieved by the following technical solutions:

There is a jacket for data lines material for the interpolation modified lime stone of synergism, 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, epoxy soybean oil 0.4-0.5, Wingdale 13-15, Oleum Gossypii semen 2-3, cationic polyacrylamide 2-3.

Described a kind of jacket for data lines material with the interpolation modified lime stone of synergism, 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) Wingdale is put into pulverizer and be ground into meal, then meal is put into wet type supper micron mill and carry out case of wet attrition, in crushing process, add cationic polyacrylamide, will be dry in hot blast containing fine-grained slurries, obtain limestone powder; Mixed with Oleum Gossypii semen by the limestone powder of pulverizing, put into ball mill, be heated to 60 DEG C, ball milling, after 2 hours, puts into air dry oven, with the temperature of 90 DEG C drying 12 hours, obtains modified lime stone;

(4) compound flame retardant, mixed resin, modified lime stone 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, 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 utilizes wet pulverization, cationic polyacrylamide is added in crushing process, the efficient uniform that ion is pulverized can be made, not easily reunite, better dispersion in the mixture, recycling Oleum Gossypii semen carries out surface modification to powder, and modified filler can improve shock-resistance and the Young's modulus of mixture.

Present component proportioning is scientific and reasonable, with paraffin oil modified SEBS and polyacrylic blend for matrix, add the filler of a series of modification, the product tensile strength made is high, shock-resistance is high, Heat stability is good, processing fluidity are good, and flame retardant effect is remarkable, easy processing, hand sense of touch are good, can be widely used in data line, computer peripheral line etc.

Embodiment

There is a jacket for data lines material for the interpolation modified lime stone of synergism, be 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, epoxy soybean oil 0.4, Wingdale 13, Oleum Gossypii semen 2, cationic polyacrylamide 2.

Described a kind of jacket for data lines material with the interpolation modified lime stone of synergism, 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) Wingdale is put into pulverizer and be ground into meal, then meal is put into wet type supper micron mill and carry out case of wet attrition, in crushing process, add cationic polyacrylamide, will be dry in hot blast containing fine-grained slurries, obtain limestone powder; Mixed with Oleum Gossypii semen by the limestone powder of pulverizing, put into ball mill, be heated to 60 DEG C, ball milling, after 2 hours, puts into air dry oven, with the temperature of 90 DEG C drying 12 hours, obtains modified lime stone;

(4) compound flame retardant, mixed resin, modified lime stone 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. one kind has the jacket for data lines material of the interpolation modified lime stone of synergism, 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, epoxy soybean oil 0.4-0.5, Wingdale 13-15, Oleum Gossypii semen 2-3, cationic polyacrylamide 2-3.

2. a kind of jacket for data lines material with the interpolation modified lime stone of synergism 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) Wingdale is put into pulverizer and be ground into meal, then meal is put into wet type supper micron mill and carry out case of wet attrition, in crushing process, add cationic polyacrylamide, will be dry in hot blast containing fine-grained slurries, obtain limestone powder; Mixed with Oleum Gossypii semen by the limestone powder of pulverizing, put into ball mill, be heated to 60 DEG C, ball milling, after 2 hours, puts into air dry oven, with the temperature of 90 DEG C drying 12 hours, obtains modified lime stone;

(4) compound flame retardant, mixed resin, modified lime stone 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.