CN105111663A - High-strength and anti-bending novel data line sheath material and preparation method thereof - Google Patents

Abstract

The invention discloses a high-strength and anti-bending novel data line sheath material. The high-strength and anti-bending novel data line sheath material is prepared from, by weight, 100-104 parts of SEBS1, 65-68 parts of paroline, 29-31 parts of polypropylene, 21-23 parts of polypropylene grafting maleic anhydride, 3-4 parts of antioxidant B215, 81-83 parts of magnesium hydrate, 4.3-5 parts of expandable graphite, 1.6-1.7 parts of silane coupling agents A-171, 8-9 parts of absolute ethyl alcohol, 5-7 parts of antimonous oxide, 4.5-6 parts of micrometer calcium carbonate, 2-3 parts of waterborne polyurethane resin, 10-12 parts of nylon 11 and 1-1.3 parts of polyisocyanates. The component proportion is scientific and reasonable, the appropriate amount of added nylon 11 is long-carbon-chain nylon, excellent physical performance is achieved, the high-strength and anti-bending novel data line sheath material can be well compatible with a mixing matrix, the strength and heat resistance of the product can be improved, the product process can be conveniently and industrially controlled, the flame-retardant effect is remarkable, and the high-strength and anti-bending novel data line sheath material is safe and environmentally friendly and can be used for data lines, earphone lines and the like.

Description

New types of data line sheath material of a kind of high-strength resistance to bending and preparation method thereof

Technical field

The present invention relates to technical field of polymer materials, particularly relate to new types of data line sheath material of a kind of high-strength resistance to bending 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 new types of data line sheath material of a kind of high-strength resistance to bending and preparation method thereof.

The present invention is achieved by the following technical solutions:

A new types of data line sheath material for high-strength resistance to bending, is 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, antimonous oxide 5-7, micro-calcium carbonate 4.5-6, waterborne polyurethane resin 2-3, nylon 11 10-12, polyisocyanates 1-1.3.

The new types of data line sheath material of described a kind of high-strength resistance to bending, 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) antimonous oxide is mixed with micro-calcium carbonate, mix with waterborne polyurethane resin, first in stirrer, 1 hour is stirred with the speed of 200 revs/min, then pour in ball mill, be heated to 50 DEG C, ball milling was poured out after 40 minutes, together send in high-speed mixer with nylon 11, be warming up to 180 DEG C, mix and send in twin screw extruder after 10 minutes, controlling extrusion temperature is 190 DEG C, extruding pelletization, obtains mixture after drying;

(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, 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, scientific and reasonable composition proportion, adding appropriate nylon 11 is long carbon chain nylon, there is excellent physicals, can be good at compatible with mixed matrix, and intensity and the thermotolerance of product can be improved, Product Process is convenient to Industry Control, product flame retardant effect is remarkable, and safety and environmental protection, can be used for data line, earphone cord and other flexible cords etc.

Embodiment

A new types of data line sheath material for high-strength resistance to bending, 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, antimonous oxide 5, micro-calcium carbonate 4.5, waterborne polyurethane resin 2, nylon 11 10, polyisocyanates 1.

The new types of data line sheath material of described a kind of high-strength resistance to bending, 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) antimonous oxide is mixed with micro-calcium carbonate, mix with waterborne polyurethane resin, first in stirrer, 1 hour is stirred with the speed of 200 revs/min, then pour in ball mill, be heated to 50 DEG C, ball milling was poured out after 40 minutes, together send in high-speed mixer with nylon 11, be warming up to 180 DEG C, mix and send in twin screw extruder after 10 minutes, controlling extrusion temperature is 190 DEG C, extruding pelletization, obtains mixture after drying;

(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 new types of data line sheath material of a high-strength resistance to bending, 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, antimonous oxide 5-7, micro-calcium carbonate 4.5-6, waterborne polyurethane resin 2-3, nylon 11 10-12, polyisocyanates 1-1.3.

2. the new types of data line sheath material of a kind of high-strength resistance to bending 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) antimonous oxide is mixed with micro-calcium carbonate, mix with waterborne polyurethane resin, first in stirrer, 1 hour is stirred with the speed of 200 revs/min, then pour in ball mill, be heated to 50 DEG C, ball milling was poured out after 40 minutes, together send in high-speed mixer with nylon 11, be warming up to 180 DEG C, mix and send in twin screw extruder after 10 minutes, controlling extrusion temperature is 190 DEG C, extruding pelletization, obtains mixture after drying;

(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.