CN1025961C - Anti-electrostatic fire retardant composition and preparing method thereof - Google Patents
Anti-electrostatic fire retardant composition and preparing method thereof Download PDFInfo
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- CN1025961C CN1025961C CN 93111312 CN93111312A CN1025961C CN 1025961 C CN1025961 C CN 1025961C CN 93111312 CN93111312 CN 93111312 CN 93111312 A CN93111312 A CN 93111312A CN 1025961 C CN1025961 C CN 1025961C
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Abstract
The present invention relates to an antistatic fire retardant composition which is antistatic fire retardant polypropylene material for manufacturing knitting bags of top networks of coal mining for underground coal mines. The present invention comprises the following compositions and proportioning: 100 weight portions of polypropylene, 1 to 8 weight portions of octobromo ether (2, 3 dibrom opropyl), 1 to 8 weight portions of antimonous oxide, 0.1 to 5 weight portions of antistatic agents, 0.1 to 1.5 weight portions of isopropyl tri titanate, 0.1 to 3 weight portions of triphenyl phosphite, 1 to 10 weight portions of hydrated alumina and 1 to 40 weight portions of carbon black filling agents. The preparing method of the antistatic fire retardant composition is twice kneading. The present invention has the advantages of easy acquirement of raw material, simple manufacturing technique and good antistatic and fire retardant performance, and is excellent material for manufacturing top networks of coal mining for underground coal mines and replacing steel and wood by plastics.
Description
The present invention relates to a kind of anti-electrostatic fire retardant improved composition and preparation method thereof, especially relate to anti-electrostatic fire retardant composition of a kind of braid that can make colliery down-hole coal excavation net top and preparation method thereof, it belongs to the plastics composite field.
In the prior art, general plastic material all has the excellent electric insulating energy, and frosting accumulates static easily, especially polypropylene, also very easily burning.According to national Ministry of Coal Industry propose under coal mine with mould Dai Gang, moulding the requirement of Dai Mu, for prevent fires, anti-riot, safety in production, need to use the modifying plastics material of anti-electrostatic fire retardant to make various goods.The net tops of the usefulness of for example mining etc., it is underground to require the electrostatic energy of product surface in time to import, and to avoid accumulation of static electricity too much and discharge is ignited on firely, requires flame retardant properties good, can stop working after can making goods leave flame at once.For a long time, plan some plastics and try out, but its anti-electrostatic fire retardant performance does not reach the related standard requirements of national Ministry of Coal Industry in the down-hole.Some material comes defectively once producing, though qualified when the harsh output that has is come, after the short period of time used, it was antistatic and flame retardant properties is just defective, therefore can not apply.Its major cause is that the moiety prescription of these goods is improper, and the composition instability that has in the ingredient is easily separated out; Its surface resistivity all is higher than 10
10Ω easily accumulates static; Simultaneously its flame retardant effect is not good yet, and leaving flame, to be longer than for 6 seconds just flame-out.Used coal mining net top is to work out with thicker steel wire under the coal mine now, and its weight is big, cost is high, be not easy to transportation.Because of the down-hole humidity, steel product is rust corrosion very easily again, is not durable, and consume a large amount of metallic substance, and price is more expensive.Japanese Patent " has polypropylene film antistatic and that easily seal ", application number is clear 45-99903, the applying date is on November 12nd, 1970, is that a kind of usefulness contains the polyethylene of static inhibitor or the stretched polypropene film of filming and applying that ethylene copolymer is formed.This invention is a kind of bilayer structure, so structure and processing more complicated, and the cost height is not suitable for applying in China.Japanese Patent " manufacture method " with (in length and breadth) biaxial stretch-formed polypropylene film of antistatic property, application number is clear 45-64628, the applying date is on July 23rd, 1970, disclose and a kind ofly carried out the moulding resulting biaxial stretch-formed polypropylene film in length and breadth that stretches containing a spot of polyethylene oxide olefin alkylation amine series of surfactants and polyethylene polypropylene composite, implement Corona discharge Treatment, thereby obtain having the manufacture method of (in length and breadth) biaxial stretch-formed polypropylene film of static resistance.The working method more complicated, used processing units price is more expensive.
The objective of the invention is to overcome shortcoming of the prior art, provide that a kind of manufacturing process is simple relatively, raw material is easy to get, be the anti-electrostatic fire retardant material of base material with the polypropylene, particularly can make braid, as making anti-electrostatic fire retardant material and the manufacture method thereof of colliery down-hole coal excavation with the plastic wire top with it.Make its antistatic and flame retardant properties all can reach the standard of the MT141-86 " the false top of underground mine use plastic wire inspection specification " of Ministry of Coal Industry's promulgation, other physicalies all reach the SG234-81 " China National Light Industrial Products Department's plastic baling band standard " of China National Light Industrial Products Department's promulgation, its antistatic property: sheet resistance value＜1 * 10
9Ω, its flame retardant properties: the flameless combustion time is in 3 seconds.
Technical characterictic of the present invention is as follows: this anti-electrostatic fire retardant composition comprises following composition and proportioning:
Ingredients weight parts
Polypropylene 100
Eight bromo ether (2,3 dibromopropyl) is called for short PE-68 1～8
Highly effective flame-retardant synergist antimonous oxide 1～8
Static inhibitor 0.1～5
Coupling agent sec.-propyl three titanic acid ester (KR-TTS) 0.1～1.5
Thermo-stabilizer triphenyl phosphite 0.1～3
Hydrated aluminum oxide AL
2O
33H
2O 0.1～3
Black pigment bulking agent 1～40
Wherein static inhibitor comprises that molecular formula is C
18H
37-N
N
1N-dihydroxy ethyl hard base primary amine, C
16-18Mixing higher alcohols and silicon-dioxide, its part by weight was followed successively by 45: 45: 10.
Wherein black pigment bulking agent is that median size is 35～45 microns a Graphite Powder 99, or median size is that 35～45 microns, specific surface area are 55～70 meters
2/ gram, oil-absorption(number) are that 2.5～3.5 milliliters/gram, bulk specific gravity are the Shawinigan black or the graphitized carbon black of 0.03～0.06 grams per milliliter.
Polyacrylic shape can be a powdery, also can be granular, also can be that powdery mixes with granulous.
Shawinigan black is that the acetylene gas that produces with carbide of calcium is a raw material, makes in 800～1200 ℃ scission reaction.Because this carbon black has the highest ternary structural, in plastic raw materials, be easy to disperse, all better than all sooty electroconductibility, not only make the material that makes have lower resistance value, and its surperficial resistance value stablizes constantly, makes its antistatic property good and steady in a long-term, Graphite Powder 99 and carbon black stable performance, be difficult for separating out, make this material energy anti-aging.
Static inhibitor (HZ-1) is by N
1N-dihydroxy ethyl stearyl amine kiber C
18H
32-N
C
16-18Mixing higher alcohols and silicon-dioxide cooperate the powdery composite antistatic agent that forms by 45: 45: 10 weight ratio.Because the lubrication on static inhibitor surface has reduced the frictional coefficient of frosting, thereby has reduced the generation of electric charge.The more important thing is that the static inhibitor molecular energy is arranged in frosting, form behind the water molecules in the absorbed air one deck visual inspection less than " moisture film ", this layer moisture film provide the path of one deck conduction at frosting, increased the conductivity effect that electric charge leads to air.Because the resistance of the general plastics of resistance ratio of water is much smaller, after having adsorbed some water, frosting just can reduce resistance.Increase electroconductibility, antistatic property is played on the surface.Generally speaking, the intermiscibility of static inhibitor and resin is good more, the time of oozing out is also long more, the inner static inhibitor that adds, with the reshaping processing of the mixed back of resin, it is little to the electroconductibility influence of plastics inner, but after the molecular layer of frosting is washed or weares and teares, the static inhibitor of hiding in plastics inner can constantly be exuded to upper layer, continues its antistatic property of performance.
Sec.-propyl three (isostearoyl base) titanic acid ester (KR-TTS) is a kind of coupling agent, is a kind of organic substance that increases avidity between mineral filler and the organic polymer.Can make the wetting ability of filling surface become close organic rerum natura through after the various coupling processing, thereby coupling agent make their tight linking to each other reach excellent mechanical intensity by physics with effect chemistry between filler and polymkeric substance.Consumption is 0.1～1.5 weight part.Can select for use sec.-propyl three (dodecyl benzenesulfonyl) titanic acid ester (KR-9S) as coupling agent in addition.
Eight bromo ether (2,3 dibromopropyl) is called for short PE-68, antimonous oxide (Sb
2O
3), hydrated aluminum oxide (Al
2O
33H
2O) all belong to fire retardant.Antimonous oxide can react and generate a kind of suffocating property gas when burning, and promptly the oxychloride of antimony makes fray-out of flame, can not burn away.The heat that produces when hydrated aluminum oxide can absorb burning plays cooling and reduces rate of combustion.Because contained chemical association water ratio is very high in molecule, reach 34%, under the processing of plastic temperature, keep stable, but begin to decompose when surpassing 200 ℃, discharge water vapor, liberated heat in the time of can absorbing burning reduces temperature.Antimonous oxide and hydrated aluminum oxide all are to belong to additive flame retardant.Eight bromo ether (2,3 dibromopropyl) is called for short PE-68, and this halogen-containing flame retardant can decompose under lower temperature, and produce hydrogen halide: hydrogen bromide HBr is a non-flammable gases, plays the cover surface layer, makes the thermooxidizing decomposition of material be difficult to carry out.Simultaneously again very easily with HOHO isoreactivity combined with radical, thereby suppressed burning.Bromide is better than muriatic flame retardant effect.Eight bromo ether is a kind of two aryl and fatty group bromine flame retardant of containing, and fabulous thermostability is arranged, and be molten into uniform dispersion in the course of processing, and it is obvious to be used in particular in the polypropylene effect, is fire retardant the best in the acrylic plastering.
Triphenyl phosphite is a thermo-stabilizer, belongs to one package stabilizer, can also select phosphorous acid hexichol one monooctyl ester, phosphorous acid hexichol ester in one last of the ten Heavenly stems, tricresyl phosphite (nonyl phenyl ester) etc. for use, makes sequestrant and uses.Because residually in resin be unfavorable for stable resin, need add phosphorous acid lipid and they play sequestering action and eliminate it such as trace metal and this class impurity of initiator.In addition, phosphite have anti-oxidant and with resin in the ability that works of active chlorion.
The preparation method of anti-electrostatic fire retardant composition is as follows:
(1) earlier with kneader indirect heating to 65～70 ℃;
(2) with following component, comprising:
Polypropylene 100 weight parts
Black pigment bulking agent 1～40 weight part
Coupling agent sec.-propyl three titanic acid ester 0.1～1.5 weight part
Put into kneader earlier and mediate, reach 80～90 ℃ until temperature;
(3) triphenyl phosphite 0.1～3 weight part is added in the kneader, add eight bromo ether (2,3 dibromopropyl) 1～8 weight part, antimonous oxide 1～8 weight part, hydrated aluminum oxide 1～10 weight part and static inhibitor 0.1～5 weight part in the kneader together again, continue to mediate, mediate discharging after 1～2 minute, can obtain anti-electrostatic fire retardant composition of the present invention.
At last, according to the requirement of making the net top of mining under the coal mine, the granulous anti-electrostatic fire retardant composition through extrusion moulding, is just obtained making the braid on coal mining net top.
The advantage of anti-electrostatic fire retardant composition of the present invention is that raw material is easy to get, manufacturing process is simple, make after the braid on down-hole coal excavation net top, colliery, test through Shanghai Branch of coal science institute, the standard of the MT141-86 that it is antistatic, flame retardant properties reaches Ministry of Coal Industry's promulgation fully " the false top of underground mine use plastic wire inspection specification ", other physicalies all reach the SG234-81 " China National Light Industrial Products Department's plastic baling band standard " of China National Light Industrial Products Department's promulgation.Sheet resistance value＜1 * 10
9Ω, the flameless combustion time is in 3 seconds.Has antistatic, fire-retardant, corrosion-resistant and ageing-resistant advantage.
The present invention and application number are clear 45-99903, the applying date to be that the Japanese Patent " have antistatic and easily the polypropylene film of sealing " on November 12nd, 1977 is different, this Japanese Patent is a bilayer structure, the present invention is all kneaded together with base-material with static inhibitor, thermo-stabilizer and fire retardant, not only technology is saved one complicated procedures of forming that is coated with surface film, and antistatic, fire-retardant, thermal stability is stable.With application number be clear 45-64628, the applying date is that the Japanese Patent " manufacture method with (in length and breadth) biaxial stretch-formed polypropylene film of antistatic property " on July 23rd, 1970 is compared its base-material difference.The base-material of this Japanese Patent is except polypropylene, also must add polyethylene with certain melting index, make the compatibility of polyethylene oxide olefin alkylation amine series of surfactants and crystalline polypropylene be able to equilibrium, in the manufacturing processed, its film will utilize the corona discharge machine to carry out Corona discharge Treatment, its manufactured thin film is generally as packaging film, and is different with purposes of the present invention, so its tensile strength properties is not the remarkable advantage of this material.The Chinese patent " polyproylene burning and static electricity resistance grain and manufacture method " that be 86104233 with application number, the applying date is on June 30th, 1986 is also inequality, and what the weighting agent of this patent was used in its moiety is lime carbonate, and consumption is 45～73%, and is bigger.
After table 1 is seen literary composition
Wherein: static inhibitor comprises that molecular formula is C
18H
37-
N
1N-dihydroxy ethyl stearyl amine kiber, C
16-18Mixing higher alcohols and silicon-dioxide, its weight ratio was followed successively by 45: 45: 10.
Its preparation method is as follows:
Embodiment 1
(1) with kneader indirect heating to 65 ℃;
(2) median size of using with powdered polypropylene 100 weight parts, as black pigment bulking agent is that 35～45 microns Graphite Powder 99 2 weight parts and sec.-propyl three titanic acid ester 0.1 weight part add in the kneader together and mediate, and reaches 81 ℃ until temperature;
(3) triphenyl phosphite 0.2 weight part is added in the kneader, again with eight bromo ether (2,3 dibromopropyl) 1 weight part, antimonous oxide 1.2 weight parts, hydrated aluminum oxide 1.2 weight parts and static inhibitor 0.2 weight part add continuation kneading in the kneader together, mediate discharging after 1.5 minutes, can obtain anti-electrostatic fire retardant composition.
To mediate uniform bulk goods through kneader at last, according to the requirement of making the net top of mining under the coal mine, extrusion moulding just obtains braid, and its width is 14.8 millimeters, and thickness is 0.95 millimeter.
Embodiment 2
(1) with kneader indirect heating to 68 ℃;
(2) median size of selecting for use with powdery, granular blended polypropylene 100 weight parts, as black pigment bulking agent is that 35～45 microns, specific surface area are 55 meters
2/ gram, oil-absorption(number) are that 2.5～3.5 milliliters/gram, bulk specific gravity are Shawinigan black 20 weight parts and sec.-propyl three titanic acid ester 1 weight part of 0.03～0.06 grams per milliliter, put into kneader earlier and mediate, and reach 85 ℃ until temperature;
(3) triphenyl phosphite 1.5 weight parts are added in the kneader, again with eight bromo ether (2,3 dibromopropyl) 5 weight parts, antimonous oxide 4.5 weight parts, hydrated aluminum oxide 5 weight parts and static inhibitor 2.5 weight parts add in the kneader together to be mediated, mediate discharging after 1.7 minutes, can obtain anti-electrostatic fire retardant composition.
At last, will mediate uniform anti-electrostatic fire retardant composition through extrusion moulding, and just obtain braid, its width is 14.82 millimeters, and thickness is 0.95 millimeter.
Embodiment 3
(1) with kneader indirect heating to 70 ℃;
(2) graphitized carbon black 40 weight parts of using with powdered polypropylene 100 weight parts, as carbon black filler and sec.-propyl three titanic acid ester 1.5 weight parts add in the kneader together earlier and mediate, and reach 90 ℃ until temperature;
(3) triphenyl phosphite 3 weight parts are added in the kneader, again with eight bromo ether (2,3 dibromopropyl) 8 weight parts, antimonous oxide 7.5 weight parts, hydrated aluminum oxide 10 weight parts and static inhibitor 4.8 weight parts, add together and continue in the kneader to mediate, mediate after 2 minutes, discharging can obtain anti-electrostatic fire retardant composition.
At last, will mediate uniform anti-electrostatic fire retardant composition through extrusion moulding, and just obtain braid, its width is 14.8 millimeters, and thickness is 0.95 millimeter.
Above-mentioned made first draft ribbon, as follows through the detected result of national coalcutter quality supervision and test test center:
Coalcutter quality supervision and test test center of country
The performance test report of the false top of underground mine use plastic wire
On March 13rd, 93
After table 2 is seen literary composition
Test result evaluation: check by MT141-86 " the false top of underground mine use plastic wire inspection specification " requirement: qualified
From the conductivity test-results, its test specimen sheet resistance value＜1 * 10
9Ω, antistatic property is good;
From the combustibility test result, its flame retardant properties is good;
From the physical property test result, its tensile strength properties is good, meets ministerial standard MT141-86 of Ministry of Coal Industry and the ministerial standard SG234-81 of China National Light Industrial Products Department.Therefore, meet the requirement of making the net top under the coal mine fully.
Table 1:
Several embodiment of anti-electrostatic fire retardant composition of the present invention are as follows:
Weight part
Component
Embodiment 1 embodiment 2 embodiment 3
Polypropylene 100 100 100
Eight bromo ether
1 5 8
(2,3 dibromopropyl)
Antimonous oxide 1.2 4.5 7.5
Static inhibitor 0.2 2.5 4.8
Sec.-propyl three titanic acid ester 0.1 1 1.5
Triphenyl phosphite 0.2 1.5 3
Hydrated aluminum oxide 1.2 5 10
Black pigment bulking agent 1 20 40
Table 2:
Pingdu City scientific and technological consulting services center, client Shandong Province check numbering S770431
Name of product is mining plastic wire carries product model PP150I0MS
Width 14.82mm thickness 0.95mm material polypropylene measure of skewness 10.86mm
Physical property test
Single pull-off force 3561N elongation 9.2%
Tensile strength N %
Combustibility test
Table 3:
The spirit lamp alcohol blast burner
The preface flaming combustion time flameless combustion time, whether flameless combustion time flaming combustion time
Number (S) (S) qualified (S) is (S) qualified
1 3.41 0.00 2.01 0.00
2 3.52 0.00 2.05 0.00
3 3.46 0.00 close 2.81 0.00 closes
4 3.12 0.00 lattice, 2.62 0.00 lattice
5 3.36 0.00 2.42 0.00
6 3.48 0.00 2.36 0.00
The conductivity test
20 ℃ of testing laboratory's humidity 70% of testing laboratory's temperature
On average whether sequence number 123
Resistance is qualified
Upper surface
3.0 * 10
84.5 * 10
87.0 * 10
84.8 * 10
8Qualified
Surface resistivity
Lower surface
1.0 * 10
85.0 * 10
86.0 * 10
84.0 * 10
8Qualified
Surface resistivity
Claims (3)
1, down-hole coal excavation net top, a kind of colliery braid anti-electrostatic fire retardant composition is characterized in that comprising following composition and proportioning:
Composition weight (part)
100 parts of polypropylene (PP)
1～8 part of eight bromo ether (2,3 dibromopropyl)
1～8 part of highly effective flame-retardant synergist antimonous oxide
0.1～5 part in static inhibitor
0.1～1.5 part of coupling agent sec.-propyl three titanic acid ester (KR-TTS)
0.1～3 part of triphenyl phosphite
Hydrated aluminum oxide AL
2O
33H
21～10 part of O
Granularity is the above Graphite Powder 99s of 325 orders, or median size
Be that 35～45 microns, specific surface area are 55 meters
2/ gram,
Oil-absorption(number) is 2.5～3.5 milliliters/gram, bulk specific gravity
Be 0.03～0.06 grams per milliliter Shawinigan black or
1～40 part of graphitized carbon black
Wherein, static inhibitor comprises: the N that molecular formula is following
1N-dihydroxy ethyl stearyl amine kiber
The mixing higher alcohols; Silicon-dioxide; Its part by weight was followed successively by 45: 45: 10.
2, the anti-electrostatic fire retardant composition of using according to down-hole coal excavation net top, the said colliery of claim 1 braid, the shape that it is characterized in that acrylic resin is a powdery or granular, or powdery mixes with granulous.
3, the preparation method of the anti-electrostatic fire retardant composition used of down-hole coal excavation net top, a kind of colliery braid is characterized in that:
(1) earlier with kneader indirect heating to 65 ℃～70 ℃;
(2) following component is comprised
Polypropylene 100 weight parts
Granularity is the above Graphite Powder 99s of 325 orders, or median size is that 35～45 microns, specific surface area are 55 meters
2/ gram, oil-absorption(number) are 2.5～3.5 milliliters/gram, bulk specific gravity
0.03 the Shawinigan black of～0.06 grams per milliliter or
Graphitized carbon black 1～40 weight part
Coupling agent sec.-propyl three titanic acid ester 0.1～1.5 weight part
Put into kneader earlier and mediate, reach 80 ℃～90 ℃ until temperature;
(3) triphenyl phosphite 0.1～3 weight part is added in the kneader, again with eight bromo ether (2,3 dibromopropyl) 1～8 weight part, antimonous oxide 1～8 weight part, hydrated aluminum oxide 1～10 weight part, static inhibitor 0.1～5 weight part adds continuation kneading in the kneader, the discharging of 1～2 minute kneading time together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93111312 CN1025961C (en) | 1993-06-25 | 1993-06-25 | Anti-electrostatic fire retardant composition and preparing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93111312 CN1025961C (en) | 1993-06-25 | 1993-06-25 | Anti-electrostatic fire retardant composition and preparing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1079494A CN1079494A (en) | 1993-12-15 |
| CN1025961C true CN1025961C (en) | 1994-09-21 |
Family
ID=4989109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93111312 Expired - Fee Related CN1025961C (en) | 1993-06-25 | 1993-06-25 | Anti-electrostatic fire retardant composition and preparing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1025961C (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1058275C (en) * | 1996-06-25 | 2000-11-08 | 生寿斋 | Anti-static and flame-retardant composite for plastic conveyer roller of coal mine and its mfg. method |
| CN1300238C (en) * | 2003-04-07 | 2007-02-14 | 上海日之升新技术发展有限公司 | Magnesium solt whisker rein forced fire-resisting polypropylene composition |
| CN100365051C (en) * | 2006-11-24 | 2008-01-30 | 北京理工大学 | Reinforced toughening flame-proof polyolefin resin composition and its preparation method |
| CN100358973C (en) * | 2006-11-24 | 2008-01-02 | 北京理工大学 | Composite flame retardant in bromine series, preparation method and application |
| CN102399389A (en) * | 2010-09-07 | 2012-04-04 | 李天辉 | Preparation method of high performance flame retardation antistatic polypropylene plastic |
| CN101942148B (en) * | 2010-10-14 | 2012-12-05 | 北京东方绿达科技发展有限责任公司 | New-type inflaming retarding material and preparation method thereof |
| CN103275394B (en) * | 2013-05-29 | 2016-03-30 | 青岛科技大学 | A kind of Weather-resistant flame-retardant polypropylene composite material and preparation method thereof |
| CN105924797A (en) * | 2016-07-19 | 2016-09-07 | 李英 | Plastic banknote substrate and production method thereof |
| CN107880396A (en) * | 2017-12-18 | 2018-04-06 | 温州瑞榕汽车零部件制造有限公司 | A kind of high efficiency flame retardant material and its preparation technology |
| CN109354763A (en) * | 2018-09-07 | 2019-02-19 | 惠州市沃特新材料有限公司 | PP composite material and preparation method thereof |
-
1993
- 1993-06-25 CN CN 93111312 patent/CN1025961C/en not_active Expired - Fee Related
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