CN1247682C - Dynamic polypropylene sulfide composite material and its preparation method - Google Patents
Dynamic polypropylene sulfide composite material and its preparation method Download PDFInfo
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- CN1247682C CN1247682C CN 200410013832 CN200410013832A CN1247682C CN 1247682 C CN1247682 C CN 1247682C CN 200410013832 CN200410013832 CN 200410013832 CN 200410013832 A CN200410013832 A CN 200410013832A CN 1247682 C CN1247682 C CN 1247682C
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Abstract
The present invention discloses a polypropylene composite material formed by dynamic vulcanization and a preparation method thereof. The composite material is composed of the following components of (A) a polypropylene homopolymer or a polypropylene copolymer or the mixture of the polypropylene homopolymer and the polypropylene copolymer, (B) SIS, SBS or SBS(SEBS) hydride, (C) inorganic mineral stuffing, (D), a crosslinking agent and (E) a crosslinking aid agent which form the polypropylene composite material by dynamic vulcanization reaction. The preparation method for the composite material comprises the following steps: step one, all components are sufficiently and uniformly mixed; step two, the components are melted and are mutually mixed for dynamic vulcanization reaction for granulation extrusion, and are extruded for granulation. The composite material has the advantages of good surface scrape resistant performance, comprehensive mechanical performance, simultaneously improvement of the rigidity and the toughness of the material, and low price. The preparation method for the composite material improves the scrape resistant performance and the comprehensive mechanical performance of the composite material because of the adoption of dynamic vulcanization technique, and has convenient production technology.
Description
One, technical field
The present invention relates to polypropylene composite material and preparation method thereof, especially a kind of dynamic polypropylene sulfide matrix material and preparation method thereof.
Two, background technology
Polypropylene material has certain rigidity, intensity and thermotolerance owing to little, the easy processing of density, resistance to chemical attack, and low price can be recycled in addition, is widely used in industries such as automobile, household electrical appliances, building.Shortcoming is that low temperature impact strength (toughness) and scoring resistance can be poor.Along with developing of automobile industry, the used modified polypropylene composite material demand of PP Pipe Compound such as automotive interior material such as dashboard, door shield, seat backplate is big, these automotive trim PP Pipe Compound require material to have high rigidity, high-modulus, scoring resistance, and particularly high-grade automobile can require higher to the scoring resistance of material.The common method of modifying that adopts of modified plastics industry is that inorganic mineral is filled enhancing and elastic body toughening, and after polypropylene elastomer was toughness reinforcing, rigidity descended, scoring resistance energy variation; After inorganic mineral strengthened, rigidity increased, but toughness does not reach requirement, was difficult to reach the requirement of industries such as automobile, household electrical appliances, building to scoring resistance energy and comprehensive mechanical property with conventional method of modifying.
The technology that known patent documentation report improves the scoring resistance energy of polyolefine material has: add silicon-dioxide, lubricant etc.JP1104637 has introduced silica modified polypropylene, improves the technology of material scoring resistance, and its composition is modified polypropene 7-75 part of 100 parts of crystalline polypropylenes, silicon-dioxide 3-50 part, grafted maleic anhydride.Mainly improved material welding performance, slightly improved with talc powder filled polypropylene material comparison scratch resistant performance.CN1168148A has introduced a kind of composition, form by the polypropylene of 40-80%, the graft polypropylene of 1-10%, the inorganic mineral of 1-50%, the silica gel of 1-15%, the EPDM of 0-40%, the silica gel of functionalized pp material and amorphous fatty acid amide modification is incorporated in the polyolefine raw material that contains certain mineral material, can improves the scoring resistance energy of material.This patent is at first carried out graft modification with polypropylene, makes it functionalized, and respectively with the fatty acid amide modified silica-gel, again blend is carried out melt pelletization after handling inorganic mineral with silane coupling agent, complex process, and the silica gel price is more expensive.
Three, summary of the invention
Technical problem to be solved by this invention is to overcome the defective that prior art exists, and a kind of new dynamic polypropylene sulfide matrix material is provided, and it has good surperficial scoring resistance energy and comprehensive mechanical property.Low price, production technique are easy.The rigidity and the toughness of material improve simultaneously, and scoring resistance is better.
Dynamic polypropylene sulfide matrix material of the present invention is characterized in that being made up of following each component:
(A) mixture of the homopolymer polypropylene of mass percent 10-97.9% or polypropylene copolymer or homopolymer polypropylene and polypropylene copolymer;
(B) segmented copolymer (SBS) of the segmented copolymer of the vinylbenzene of mass percent 1-30% and isoprene (SIS) or vinylbenzene and divinyl or Hydrogenated SBS (SEBS);
(C) inorganic mineral filler of mass percent 1-50%, handle with the silane coupling agent of relative inorganic mineral filler mass percent 0.2-5% on its surface; Inorganic mineral filler is selected whisker for use, or the mixture of whisker and mica and/or talcum powder and/or silicon-dioxide and/or wollastonite and/or kaolin and/or lime carbonate etc., and whisker content is mass percent 10-100% in the mixture;
Described whisker can be calcium sulfate crystal whiskers, magnesium borate crystal whisker, aluminium borate whisker, magnesium sulfate crystal whisker, calcium carbonate crystal whisker, ZnOw or magnesia crystal whisker etc.;
Described silane coupling agent can be γ-An Bingjisanyiyangjiguiwan, γ-(methacryloxy) propyl trimethoxy silicane or γ-glycidyl ether oxygen propyl trimethoxy silicane etc.;
(D) linking agent of mass percent 0.05-5%;
Described linking agent can be 2,5 dimethyl-2,5-bis(t-butylperoxy) hexane, dicumyl peroxide or benzoyl peroxide.
(E) additional crosslinker of mass percent 0.05-5%;
Described additional crosslinker can be Vinylstyrene (DVB), Phthalic acid, diallyl ester (DAP), a phenyl dimaleimide, diallyl terephthalate or tricarbimide triallyl ester (TAIC);
Said components forms polypropylene composite material through the dynamic vulcanization reaction.
The method for preparing above-mentioned dynamic polypropylene sulfide matrix material is:
Step 1: with A, B, C, D, the abundant mixing of each component of E;
Step 2:, carry out the dynamic vulcanization reaction, extruding pelletization with twin screw extruder or continuous Banbury mixer melt blending.The relevant processing parameter of dynamic vulcanization reaction is: melt temperature 180-240 ℃, and screw speed 100-500rpm, reaction times 1-10 minute.
Dynamic polypropylene sulfide matrix material of the present invention has good surperficial scoring resistance energy and comprehensive mechanical property.The rigidity and the toughness of material improve simultaneously, the better and low price of scoring resistance.
The preparation method of dynamic polypropylene sulfide matrix material of the present invention owing to adopt dynamic vulcanization technology, improve the scoring resistance energy and the comprehensive mechanical property of matrix material, and production technique is easy.
Four, embodiment
Below in conjunction with specific embodiment dynamic polypropylene sulfide matrix material of the present invention and preparation method thereof is described in further detail.
Embodiment 1
The dynamic polypropylene sulfide matrix material, form by following each component:
(A) polypropylene copolymer of mass percent 57.8%;
(B) segmented copolymer of the vinylbenzene of mass percent 15% and isoprene (SIS);
(C) the inorganic mineral filler calcium sulfate crystal whiskers of mass percent 24%, its surperficial γ-An Bingjisanyiyangjiguiwan coupling agent treatment with relative calcium sulfate crystal whiskers mass percent 3%;
(D) 2 of mass percent 0.7%, 5 dimethyl-2,5-bis(t-butylperoxy) hexane linking agent;
(E) Vinylstyrene of mass percent 2.5% (DVB) additional crosslinker;
Said components forms polypropylene composite material through the dynamic vulcanization reaction.
Embodiment 2
The method for preparing embodiment 1 described dynamic polypropylene sulfide matrix material:
Step 1: with A, B, C, D, each component of E abundant mixing in high-speed mixer;
Step 2: carry out the dynamic vulcanization reaction through twin screw extruder, the relevant processing parameter of dynamic vulcanization reaction is: 195 ℃ of melt temperatures, screw speed 350rpm, reaction times 4min;
Embodiment 3
The dynamic polypropylene sulfide matrix material, form by following each component:
(A) mixture of the homopolymer polypropylene of mass percent 10% and polypropylene copolymer;
(B) segmented copolymer of the vinylbenzene of mass percent 30% and divinyl (SBS);
(C) the inorganic mineral filler magnesium borate crystal whisker of mass percent 50%, its surperficial γ-(methacryloxy) propyl trimethoxy silicane coupling agent treatment with relative magnesium borate crystal whisker mass percent 0.2;
(D) the dicumyl peroxide linking agent of mass percent 5%;
(E) Phthalic acid, diallyl ester of mass percent 5% (DAP) additional crosslinker;
Said components forms polypropylene composite material through the dynamic vulcanization reaction.
Embodiment 4
The dynamic polypropylene sulfide matrix material, form by following each component:
(A) homopolymer polypropylene of mass percent 97.9%;
(B) Hydrogenated SBS of mass percent 1% (SEBS);
(C) the inorganic mineral filler aluminium borate whisker of mass percent 1%, its surperficial γ-glycidyl ether oxygen propyl trimethoxy silicane coupling agent treatment with relative aluminium borate whisker mass percent 5%;
(D) the benzoyl peroxide linking agent of mass percent 0.05%;
(E) mass percent 0.05% between phenyl dimaleimide additional crosslinker;
Said components forms polypropylene composite material through the dynamic vulcanization reaction.
Embodiment 5
Substantially the same manner as Example 1, different is: the inorganic mineral filler of component C adopts magnesia crystal whisker.
Embodiment 6
Substantially the same manner as Example 1, different is: the inorganic mineral filler of component C adopts magnesium sulfate crystal whisker.
Embodiment 7
Substantially the same manner as Example 1, different is: the inorganic mineral filler of component C adopts calcium carbonate crystal whisker.
Embodiment 8
Substantially the same manner as Example 1, different is: the inorganic mineral filler of component C adopts ZnOw.
Embodiment 9
Substantially the same manner as Example 1, different is: the inorganic mineral filler of component C adopts magnesium sulfate crystal whisker and micaceous mixture, and magnesium sulfate crystal whisker and micaceous proportioning are 1: 1 (mass ratio).
Embodiment 10
Substantially the same manner as Example 9, different is: the inorganic mineral filler of component C adopts calcium sulfate crystal whiskers and talcous mixture, and calcium sulfate crystal whiskers and talcous proportioning are 1: 9 (mass ratio).
Embodiment 11
Substantially the same manner as Example 9, different is: the inorganic mineral filler of component C adopts the mixture of magnesia crystal whisker and lime carbonate, and the proportioning of magnesia crystal whisker and lime carbonate is 1: 1 (mass ratio).
Embodiment 12 (comparative example)
Substantially the same manner as Example 9, different is: the inorganic mineral filler of component C adopts the mixture of aluminium borate whisker and silicon-dioxide, and the proportioning of aluminium borate whisker and silicon-dioxide is 9.9: 0.1 (mass ratio).
Embodiment 13
Substantially the same manner as Example 9, different is: the inorganic mineral filler of component C adopts the mixture of calcium carbonate crystal whisker and wollastonite, and the proportioning of calcium carbonate crystal whisker and wollastonite is 1: 1 (mass ratio).
Embodiment 14
Substantially the same manner as Example 9, different is: the inorganic mineral filler of component C adopts ZnOw and kaolinic mixture, and ZnOw and kaolinic proportioning are 1: 1 (mass ratio).
Embodiment 15
Substantially the same manner as Example 9, different is: the inorganic mineral filler of component C adopts the mixture of magnesium sulfate crystal whisker and mica, talcum powder, silicon-dioxide, wollastonite, kaolin and lime carbonate, and the proportioning of magnesium sulfate crystal whisker and mica, talcum powder, silicon-dioxide, wollastonite, kaolin and lime carbonate is 5: 1: 1: 1: 1: 0.5: 0.5 (mass ratio).
The enumerating of the mixture embodiment of above-mentioned various whisker and mica and/or talcum powder and/or silicon-dioxide and/or wollastonite and/or kaolin and/or lime carbonate is not limit, can also be a kind of whisker and more than one mix of mica, talcum powder, silicon-dioxide, wollastonite, kaolin, lime carbonate.
Embodiment 16
Substantially the same manner as Example 1, different is: component E adopts diallyl terephthalate or tricarbimide triallyl ester (TAIC).
Embodiment 17
The method for preparing embodiment 3 described dynamic polypropylene sulfide matrix materials:
Step 1: with A, B, C, D, each component of E abundant mixing in the middling speed mixing machine;
Step 2: carry out the dynamic vulcanization reaction through twin screw extruder, the relevant processing parameter of dynamic vulcanization reaction is: 180 ℃ of melt temperatures, screw speed 500rpm, 10 minutes reaction times.
Embodiment 18
The method for preparing embodiment 4 described dynamic polypropylene sulfide matrix materials:
Step 1: with A, B, C, D, each component of E abundant mixing in the middling speed mixing machine;
Step 2: carry out the dynamic vulcanization reaction through twin screw extruder, the relevant processing parameter of dynamic vulcanization reaction is: 200 ℃ of melt temperatures, screw speed 100rpm, 10 minutes reaction times.
Embodiment 19
The method for preparing embodiment 4 described dynamic polypropylene sulfide matrix materials:
Step 1: with A, B, C, D, each component of E abundant mixing in the middling speed mixing machine;
Step 2: carry out the dynamic vulcanization reaction through twin screw extruder, the relevant processing parameter of dynamic vulcanization reaction is: 240 ℃ of melt temperatures, screw speed 200rpm, 1 minute reaction times.
The testing method of dynamic polypropylene sulfide matrix material salient features is as follows:
Modulus in flexure: press ISO178 and measure;
Socle girder notched Izod impact strength: press ISO180 and measure;
Rockwell hardness: press ISO2039 and measure;
Scoring resistance: press Ford laboratory testing method (FLTM) BN108-13 and measure.
Subordinate list: the dynamic polypropylene sulfide matrix material salient features of embodiment correspondence
| 10 | 1600 | 48 | 85 | 2.1 |
| 11 | 1520 | 28 | 82 | 2.2 |
| 12 | 2200 | 30 | 95 | 1.2 |
| 13 | 1950 | 25 | 94 | 1.6 |
| 14 | 1800 | 30 | 90 | 1.4 |
| 15 | 1700 | 28 | 85 | 1.6 |
| 16 | 1820 | 30 | 92 | 1.4 |
Dynamic polypropylene sulfide matrix material of the present invention for improving the needs of technology properties, can also add other relevant auxiliary agent during preparation.As add oxidation inhibitor, anti ultraviolet agent, to improve aging resistance of materials; Add lubricant, to improve Drawing abillity; Can also add various tinting materials as required.These technical schemes all belong to protection scope of the present invention.
Claims (7)
1, a kind of dynamic polypropylene sulfide matrix material is characterized in that being made up of following each component:
(A) mixture of the homopolymer polypropylene of mass percent 10-97.9% or polypropylene copolymer or homopolymer polypropylene and polypropylene copolymer;
(B) block copolymer SBS or the Hydrogenated SBS of the segmented copolymer SIS of the vinylbenzene of mass percent 1-30% and isoprene or vinylbenzene and divinyl;
(C) inorganic mineral filler of mass percent 1-50%, handle with the silane coupling agent of 0.2-5% on its surface; Inorganic mineral filler is selected whisker for use, or the mixture of whisker and mica and/or talcum powder and/or silicon-dioxide and/or wollastonite and/or kaolin and/or lime carbonate, and whisker content is mass percent 10-100% in the mixture;
(D) linking agent of mass percent 0.05-5%;
(E) additional crosslinker of mass percent 0.05-5%;
Said components forms polypropylene composite material through the dynamic vulcanization reaction.
2, dynamic polypropylene sulfide matrix material according to claim 1 is characterized in that: described whisker can be magnesium sulfate crystal whisker, magnesium borate crystal whisker, aluminium borate whisker, calcium sulfate crystal whiskers, calcium carbonate crystal whisker, ZnOw or magnesia crystal whisker.
3, dynamic polypropylene sulfide matrix material according to claim 1 and 2 is characterized in that: described silane coupling agent can be γ-An Bingjisanyiyangjiguiwan or γ-(methacryloxy) propyl trimethoxy silicane or γ-glycidyl ether oxygen propyl trimethoxy silicane.
4, dynamic polypropylene sulfide matrix material according to claim 1 is characterized in that: linking agent can be 2,5 dimethyl-2,5-bis(t-butylperoxy) hexane, dicumyl peroxide or benzoyl peroxide.
5, dynamic polypropylene sulfide matrix material according to claim 1 is characterized in that: additional crosslinker can be Vinylstyrene DVB, Phthalic acid, diallyl ester DAP, a phenyl dimaleimide, diallyl terephthalate or tricarbimide triallyl ester TAIC.
6, a kind of method for preparing claim 1,2,4 or 5 described dynamic polypropylene sulfide matrix materials the steps include:
Step 1: with A, B, C, D, the abundant mixing of each component of E;
Step 2:, carry out the dynamic vulcanization reaction, extruding pelletization with twin screw extruder or continuous Banbury mixer melt blending; The relevant processing parameter of dynamic vulcanization reaction is: melt temperature 180-240 ℃, and screw speed 100-500rpm, reaction times 1-10 minute.
7, a kind of method for preparing the described dynamic polypropylene sulfide matrix material of claim 3 the steps include:
Step 1: with A, B, C, D, the abundant mixing of each component of E;
Step 2:, carry out the dynamic vulcanization reaction, extruding pelletization with twin screw extruder or continuous Banbury mixer melt blending; The relevant processing parameter of dynamic vulcanization reaction is: melt temperature 180-240 ℃, and screw speed 100-500rpm, reaction times 1-10 minute.
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| KR100683230B1 (en) * | 2006-02-16 | 2007-03-12 | 현대모비스 주식회사 | Polypropylene composite composition |
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| CN102140204B (en) * | 2011-05-04 | 2014-06-11 | 金发科技股份有限公司 | Polypropylene composition and preparation method thereof |
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| CN111087664A (en) * | 2019-12-30 | 2020-05-01 | 白圭聚合物(武汉)有限公司 | TPE material and preparation method thereof |
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