CN102863696B - Anti-ultraviolet-aging glass-fiber-reinforced polypropylene composite material and preparation method thereof - Google Patents
Anti-ultraviolet-aging glass-fiber-reinforced polypropylene composite material and preparation method thereof Download PDFInfo
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Abstract
The invention discloses an anti-ultraviolet-aging glass-fiber-reinforced polypropylene composite material and a preparation method thereof. The composite material is prepared from glass-fiber-reinforced polypropylene composite material granules and ASA (acrylonitrile-styrene-acrylate) in a mass ratio of 95:5-90:10. The glass-fiber-reinforced polypropylene composite material granules are composed of polypropylene, glass fibers, a compatilizer, an antioxidant and a photostabilizer. The material has the characteristic of strong ultraviolet-aging resistance, and also has high strength and high toughness in the ultraviolet-aging glass-fiber-reinforced polypropylene composite material. The preparation technique is simple, and has the advantages of low production cost and no secondary pollution.
Description
Technical field
The invention belongs to technical field of polymer composite materials is and in particular to a kind of anti-ultraviolet ageing fiber glass reinforced polypropylene
Composite and preparation method thereof.
Background technology
Fiberglass reinforced plastics are a kind of light-high-strength structural timbers, because fiber has good mechanical property,
When there being external force effect, load is transmitted by fiber, so the stretching of fiberglass reinforced plastics, bending, impact strength and creep resistant,
Fatigue-resistance characteristics are much better than non-reinforced plastic, and have excellent rigid, toughness, warpage preventing, and its price is far below work
Engineering plastics.The application of fiberglass reinforced plastics widely, there are about 50% fiberglass reinforced plastic applications in auto industry in West Europe.
The performance of fiberglass reinforced plastics depends primarily on following factor: 1. glass fiber content: in general, glass fiber content is higher, and glass increases
The mechanical property of strong plastics is also higher, but glass fiber content is too high, to process equipment serious wear, and so that material fragility is improved and
Density increases；Simultaneously after glass fiber content exceedes a certain marginal value (50 wt%), increase further with glass fiber content, mechanicalness
Can decline on the contrary；2. length in resin matrix for the glass；3. the cohesive force between glass and resin matrix and it is scattered
Uniformity.
Glass fiber reinforced polypropylene composite material becomes a kind of widely used with its excellent mechanical performance and high cost performance
Composite.In order to prepare excellent combination property glass fibre reinforced composite material it is important to increase glass and resin matrix it
Between interaction force, avoid the antagonism between various functions auxiliary agent simultaneously.；Therefore, in order to increase biphase between act on
Power, polypropylene grafted maleic anhydride class compatilizer is widely adopted, but remaining unreacted in such compatilizer is completely sour
Acid anhydride and carboxyl cause system to assume acidity.In order to realize fiberglass reinforced class material for open air, the steady agent of all kinds of light is used for such
Composite system, the steady agent of very widely used today hindered amines light all in alkalescence, this faintly acid with fiberglass reinforced system
There is antagonism, cause the mechanical performance of material and resistance to UV aging all poor.Therefore, how to realize glass composite wood
Expect that excellent mechanical performance is realized anti-ultraviolet ageing simultaneously and become a problem demanding prompt solution.
Modified resin asa be a kind of by acrylonitrile, styrene, acrylic rubber ter-polymers combined polymerization one kind
Resin Used As Impact Modifier, has good mechanical and physical performance, very strong weatherability and preferable resistance to elevated temperatures, and therefore it is one
Plant the good selection of outdoor resin.
Multilayer materials are a kind of branches of composite, be by the layers of material of difference in functionality be combined into one organic
Overall, thus playing the excellent properties of each layer, the final combination property lifting composite.By asa and fiber glass reinforced polypropylene
It is prepared into double-layer composite material, that is, utilize the high anti-ultraviolet ageing characteristic of asa to constitute outer layer, the high epistasis of fiber glass reinforced polypropylene
Make the characteristic that the double-deck glass fibre reinforced composite material that internal layer prepares then both had had fiber glass reinforced polypropylene, also have good
Weather resisteant.And this bilayer glass fiber reinforced polypropylene composite material there is not been reported so far.
Chinese invention patent cn102329448a discloses a kind of glass fiber reinforced polypropylene composite material and preparation method thereof,
Wherein describe and utilize high-alkali fiberglass reinforced toughened polypropylene composite to be used for preparing washing machine tub.This composite
There is excellent mechanical performance, washing machine drum use requirement can be met, but this material does not have resistance to UV aging,
Therefore may be only used for product at lucifuge to use.
Chinese invention patent cn101338051a discloses a kind of long fiber reinforced PP composite material and preparation method thereof,
Material is made up of polypropylene, long glass fibres, coupling agent, compatilizer etc., and preparation method is first by polypropylene and adjuvant one
Play the red extruder of mixing and extrude solution, then long glass fibres is introduced in solution carries out being sufficiently impregnated with, coat, last discharging must be produced
Product.This material technology is simple and easy to do, and properties of product are preferable, but also without the interpolation steady agent of light or using anti-in this composite
The method of ultraviolet ageing, does not possess resistance to UV aging.
Chinese invention patent cn101735513a discloses the short fiber reinforced polypropylene composite material of alkali-free, and this composite has
There is excellent mechanical performance, pass through to add hindered amines light steady agent raising light stability energy simultaneously, but the acidity due to compatilizer
The antagonism and alkalescence of the steady agent of light between with could not thoroughly solve, therefore anti-ultraviolet ageing limited features.
Chinese invention patent cn202302354 u discloses the MULTILAYER COMPOSITE technology of hdpe and pp two-layer compound tubing.Will
The hdpe anti-ultraviolet ageing layer adding the steady agent of light, as outer layer, will have the internal layer of the polypropylene pipe of heat-resisting and high intensity, from
And prepare two-layer compound tubing.So both reduced the cost of tubing, improve the characteristic of its anti-ultraviolet ageing simultaneously, shown many
The technique of layer composite and theory have obvious advantage.
Content of the invention
The present invention be directed to problems of the prior art, provide one kind be applied to industrialized mass production, have excellent
Tensile strength, impact strength and ultraviolet aging resistance glass fiber reinforced polypropylene composite material.Another object of the present invention is
The preparation method of above-mentioned anti-ultraviolet ageing glass fiber reinforced polypropylene composite material is provided.
In order to achieve the above object, the present invention is realized by following technical proposal:
A kind of anti-ultraviolet ageing glass fiber reinforced polypropylene composite material, described composite is multiple by fiber glass reinforced polypropylene
Condensation material particle and asa form for 95:5-90:10 in mass ratio；Described glass fiber reinforced polypropylene composite material particle is by following
Component is constituted by weight: polypropylene: 50-87, glass fibre: 10-40, compatilizer: 2-7, antioxidant: 0.1-0.4, light are stable
Agent: 0.1-1.
The preferred version of such scheme is, described polyacrylic melt index be more than 10 g/10min (230 DEG C,
Ethylene contents in COPP 2.16kg), wherein COPP are 4-15wt%.
A diameter of 8-15 μm of described glass fibre, and surface is through silane or titanate coupling agent impregnation process.
Described compatilizer is for polypropylene grafted maleic anhydride (pp-g-mah) or by polypropylene grafted maleic anhydride (pp-
G-mah the mixture) forming, also includes acrylicstyrene-propylene cyanogen grafted maleic anhydride (asa-g- in described mixture
Mah), polypropylene grafted glycidyl methacrylate (pp-g-gma), grafting maleic anhydride with ethylene propylene terpolymer (epdm-
G-mah), one of ethylene propylene diene rubber graft glycidyl methacrylate (epdm-g-gma) or more than one.
Described asa is more than the copolymer of 40 g/10min (220 DEG C, 10kg) for melt index.
Described light stabilizer is UV absorbent.
The preferred version of the steady agent of above-mentioned light is, described UV absorbent is oxybenzoic acid phenyl ester, 2-(2'- hydroxyl-
5'- aminomethyl phenyl) BTA, 2,4-DihydroxyBenzophenone, Octabenzone, 2-(2'-
The tertiary phenyl of hydroxyl -3', 5'- bis-) -5- chlorination benzotriazole, at least one in polyolefin-based black masterbatch.
Described antioxidant be four (β-(3,5- di-tert-butyl-hydroxy phenyl) propanoic acid) pentaerythritol ester (1010), three
At least one in the double octadecyl (dstdp) of (2,4- di-tert-butyl-phenyl) phosphite ester (168), thio-2 acid.
A kind of method preparing above-mentioned anti-ultraviolet ageing glass fiber reinforced polypropylene composite material, comprises the following steps:
(1) prepare glass fiber reinforced polypropylene composite material particle: by polypropylene, glass fibre, compatilizer, antioxidant and light
Pelletize after melt extruding through extruder after steady agent mixing；
(2) by the glass fiber reinforced polypropylene composite material particle being obtained in (1) and asa in mass ratio for 95:5-90:10
Mixed, finished product.
The preferred version of such scheme is that in described step (1), extruder is double screw extruder.
The present invention compared with prior art, has some advantage following:
1st, light stabilizer or interpolation are not added in the glass fiber reinforced polypropylene composite material that conventional invention patent provides
Light stabilizer be single alkalescence the amine system light stabilizer that is obstructed, the steady effect of its light is poor, and weatherability is not good.
And glass fiber reinforced polypropylene composite material is that a kind of fiber glass reinforced polypropylene of anti-ultraviolet ageing is combined in the present invention
Material, is more than the asa(acrylicstyrene-the third of the anti-ultraviolet ageing of 40 g/10min (220 DEG C, 10kg) using melt index
Alkene cyanogen) mixing material that obtained by mechanical mixture with glass fiber reinforced polypropylene composite material particle.Using this mixing material note
When moulding product, the asa of high flowing can be distributed in the top layer of product automatically, constitutes uvioresistant shell, thus providing the anti-of product
The protective layer of ultraviolet ageing；Simultaneously because being added with a small amount of ultra-violet absorption in glass fiber reinforced polypropylene composite material particle
Agent, so can absorb the ultraviolet through top layer, thus significantly more efficient raising resistance to UV aging.
2nd, the preparation process of composite of the present invention, is to prepare glass by general double screw extruder extruding pelletization to increase
Strong PP composite material particle, more direct mechanical mixture can get final products in proportion with asa by it.So can not only
Consumption is low, and equipment cost is low, and technique is easily realized.
3rd, the compatilizer in the composite of the present invention is to comprise polypropylene grafted maleic anhydride (pp-g-mah) and another
Plant the mixture of material composition, which not only adds the effect between polypropylene and glass fibre, increased asa simultaneously and gather
Active force between propylene, is effectively prevented the phenomenon of the degraded in mechanical properties leading to that is separated.
Specific embodiment:
Be given below embodiment with the present invention is specifically described it is necessary to it is pointed out here that be following examples only
It is used to further illustrate the present invention it is impossible to be interpreted as limiting the scope of the invention, being skilled in technique of this field
Personnel the present invention is made according to present invention some nonessential improve and adjustment still falls within protection scope of the present invention.
In the present invention, the preparation method of anti-ultraviolet ageing glass fiber reinforced polypropylene composite material is first to divide by weight ratio
Another name takes polypropylene, glass fibre, compatilizer, antioxidant, light stabilizer, by twin screw after high-speed mixer mix homogeneously
Extruder extruding pelletization prepares glass fiber reinforced polypropylene composite material particle, then by this composite particles and asa according to
Certain mass ratio carries out mechanical mixture, is prepared into final anti-ultraviolet ageing glass fiber reinforced polypropylene composite material.
Embodiment 1
Weigh dry COPP 87.0%, alkali-free glass fibre 10.0%, compatilizer pp- by weight ratio respectively
G-mah is 2.5 %, and antioxidant 1010 is 0.3%, and irgasfos 168 is 0.1%, and light steady agent oxybenzoic acid phenyl ester is 0.1%
Mixed, the material of mix homogeneously is added in double screw extruder, through melt extruding, after being then passed through water-cooled, by cutting
Grain machine is cut into the particle that length is 1-5mm.Wherein, the processing temperature of extruder is followed successively by 180 DEG C by feed opening to die orifice, and 195
DEG C, 210 DEG C, 210 DEG C, 220 DEG C, engine speed is 60-80rpm, and vacuum is 0.3mpa.Then by its composite particles
Add mechanical mixture in high-speed mixer with asa according to the mass ratio of 95:5, the rotating speed of high-speed mixer is 1000rpm, stirring
Can get final products after 3min.
Embodiment 2
Weigh dried COPP 80.0%, alkali-free glass fibre 17.0%, compatilizer pp-g- by weight ratio
Mah is 1.2 %, and compatilizer asa-g-mah is 1%, and antioxidant 1010 is 0.3%, and antioxidant dstdp is 0.1%, light steady agent 2-
Hydroxyl -4- oxy-octyl benzophenone is mixed for 0.4%, the material of mix homogeneously is added in double screw extruder, warp
Melt extrude, after being then passed through water-cooled, the particle that length is 1-5mm is cut into by pelleter.Wherein, the processing temperature of extruder by
Feed opening is followed successively by 180 DEG C to die orifice, 195 DEG C, 210 DEG C, 210 DEG C, 220 DEG C, and engine speed is 60-80rpm, and vacuum is
0.3mpa.Then particle and asa are added mechanical mixture in high-speed mixer according to the mass ratio of 95:5, the turning of high-speed mixer
Speed is 1000rpm, after stirring 3min.
Embodiment 3
Weigh dried COPP 75.0%, alkali-free glass fibre 20.0%, compatilizer pp-g- by weight ratio
Mah is 2 .3%, epdm-g-mah is 2.0%, and antioxidant 1010 is 0.1%, and light steady agent 2,4-DihydroxyBenzophenone is
0.6% is mixed, and the material of mix homogeneously is added in double screw extruder, through melt extruding, after being then passed through water-cooled,
The particle that length is 1-5mm is cut into by pelleter.Wherein, the processing temperature of extruder is followed successively by 180 DEG C by feed opening to die orifice,
195 DEG C, 210 DEG C, 210 DEG C, 220 DEG C, engine speed is 60-80rpm, and vacuum is 0.3mpa.Then particle is pressed with asa
Mass ratio according to 93:7 adds mechanical mixture in high-speed mixer, and the rotating speed of high-speed mixer is 1000rpm, after stirring 3min i.e.
Can.
Embodiment 4
Weigh dried COPP 70.0%, alkali-free glass fibre 24.0%, compatilizer pp-g- by weight ratio
Mah is 2.8%, epdm-g-gma is 2%, and antioxidant 1010 is 0.1%, and antioxidant dstdp is 0.2%, and irgasfos 168 is
0.1%, light steady agent 2-(2'- hydroxyl -5'- aminomethyl phenyl) BTA mixed for 0.8%, the material of mix homogeneously added
Enter in double screw extruder, through melt extruding, after being then passed through water-cooled, the particle that length is 1-5mm is cut into by pelleter.Its
In, the processing temperature of extruder is followed successively by 180 DEG C by feed opening to die orifice, 195 DEG C, 210 DEG C, and 210 DEG C, 220 DEG C, main frame turns
Speed is 60-80rpm, and vacuum is 0.3mpa.Then particle is added in high-speed mixer according to the mass ratio of 90:10 with asa
Mechanical mixture, the rotating speed of high-speed mixer is 1000rpm, after stirring 3min.
Embodiment 5
Weigh dried COPP 65.0%, alkali-free glass fibre 32.0%, compatilizer pp-g- by weight ratio
Gma is 1 %, pp-g-mah 1%, and antioxidant 1010 is 0.2%, and irgasfos 168 is 0.2%, light steady agent oxybenzoic acid benzene
Ester is mixed for 0.6%, and the material of mix homogeneously is added in double screw extruder, through melt extruding, is then passed through water-cooled
Afterwards, the particle that length is 1-5mm is cut into by pelleter.Wherein, the processing temperature of extruder is followed successively by 180 by feed opening to die orifice
DEG C, 195 DEG C, 210 DEG C, 210 DEG C, 220 DEG C, engine speed is 60-80rpm, and vacuum is 0.3mpa.Then by particle and asa
Mass ratio according to 94:6 adds mechanical mixture in high-speed mixer, and the rotating speed of high-speed mixer is 1000rpm, after stirring 3min
?.
Embodiment 6
Weigh dried COPP 57.0%, alkali-free glass fibre 35.0%, compatilizer pp-g- by weight ratio
Mah is 7 %, and antioxidant 1010 is 0.3%, and irgasfos 168 is 0.1%, and light steady agent oxybenzoic acid phenyl ester is carried out for 0.6%
Mixing, the material of mix homogeneously is added in double screw extruder, through melt extruding, after being then passed through water-cooled, by pelleter
It is cut into the particle that length is 1-5mm.Wherein, the processing temperature of extruder is followed successively by 180 DEG C by feed opening to die orifice, 195 DEG C,
210 DEG C, 210 DEG C, 220 DEG C, engine speed is 60-80rpm, and vacuum is 0.3mpa.Then by particle and asa according to 92:8
Mass ratio add mechanical mixture in high-speed mixer, the rotating speed of high-speed mixer is 1000rpm, after stirring 3min.
Embodiment 7
Weigh dried COPP 54.0%, alkali-free glass fibre 40.0%, compatilizer pp-g- by weight ratio
Mah is 2.8 %, and compatilizer epdm-g-gma is 2%, and antioxidant 1010 is 0.1%, and irgasfos 168 is 0.1 %, light steady agent 2-
(the tertiary phenyl of 2'- hydroxyl -3', 5'- bis-) -5- chlorination benzotriazole is mixed for 1%, the material of mix homogeneously is added to double
In screw extruder, through melt extruding, after being then passed through water-cooled, the particle that length is 1-5mm is cut into by pelleter.Wherein, squeeze
The processing temperature going out machine is followed successively by 180 DEG C by feed opening to die orifice, 195 DEG C, 210 DEG C, 210 DEG C, 220 DEG C, and engine speed is
60-80rpm, vacuum is 0.3mpa.Then particle is added machinery in high-speed mixer mixed with asa according to the mass ratio of 91:9
Close, the rotating speed of high-speed mixer is 1000rpm, after stirring 3min.
Embodiment 8
Weigh dried COPP 52%, alkali-free glass fibre 40.0%, compatilizer pp-g-mah by weight ratio
It is 3% for 3.6 %, epdm-g-mah, antioxidant 1010 is 0.3%, irgasfos 168 is 0.1%, light steady agent polyvinyl white carbon black
Master batch pe2772 is mixed for 1%, and the material of mix homogeneously is added in double screw extruder, through melt extruding, then
After water-cooled, the particle that length is 1-5mm is cut into by pelleter.Wherein, the processing temperature of extruder by feed opening to die orifice
It is followed successively by 180 DEG C, 195 DEG C, 210 DEG C, 210 DEG C, 220 DEG C, engine speed is 60-80rpm, and vacuum is 0.3mpa.Then will
Particle adds mechanical mixture in high-speed mixer with asa according to the mass ratio of 95:5, and the rotating speed of high-speed mixer is 1000rpm,
After stirring 3min.
Can draw from above-mentioned eight embodiments, by weight, by polypropylene: 52-87, glass fibre: 10-40, phase
Hold agent: 2-7, antioxidant: 0.1-0.4 agent steady with light: after 0.1-1 mixes, extruded machine melt extrudes rear pelletize；Press with asa again
Mass ratio is mixed for 95:5-90:10, all finished product satisfactory, that have resistance to UV aging can be obtained.
Sample in above-described embodiment 1-8 is molded into GB batten according to unified technique, according to listed test in table 1
Standard and condition carry out measuring mechanical property respectively to it, and the sample of each embodiment is put in ultraviolet accelerated ageing case carry out
Aging, test data is as shown in table 2 below.
Table 1: the performance test standard of composite and condition
Table 2: the performance test results of each composite in embodiment 1 ~ 8
| Embodiment | Tensile strength/mpa | Elongation at break/% | Notch impact strength (kj/m2) | Bending strength/mpa |
| Embodiment 1 | 46 | 45 | 13 | 46 |
| After 2000h is aging | 44 | 43 | 11 | 44 |
| Retention rate | 0.96 | 0.96 | 0.85 | 0.96 |
| Embodiment 2 | 49 | 40 | 16 | 52 |
| After 2000h is aging | 47 | 40 | 15 | 51 |
| Retention rate | 0.96 | 1.00 | 0.94 | 0.98 |
| Embodiment 3 | 55 | 37 | 19 | 61 |
| After 2000h is aging | 47 | 40 | 16 | 51 |
| Retention rate | 0.85 | 1.08 | 0.84 | 0.84 |
| Embodiment 4 | 58 | 30 | 20 | 65 |
| After 2000h is aging | 55 | 28 | 17 | 60 |
| Retention rate | 0.95 | 0.93 | 0.85 | 0.92 |
| Embodiment 5 | 61 | 21 | 24 | 75 |
| After 2000h is aging | 57 | 17 | 21 | 70 |
| Retention rate | 0.93 | 0.81 | 0.88 | 0.93 |
| Embodiment 6 | 66 | 19 | 27 | 87 |
| After 2000h is aging | 62 | 16 | 23 | 83 |
| Retention rate | 0.94 | 0.84 | 0.85 | 0.95 |
| Embodiment 7 | 70 | 11 | 30 | 99 |
| After 2000h is aging | 69 | 10 | 25 | 93 |
| Retention rate | 0.99 | 0.91 | 0.83 | 0.94 |
| Embodiment 8 | 71 | 9 | 28 | 87 |
| After 2000h is aging | 64 | 7 | 22 | 81 |
| Retention rate | 0.90 | 0.78 | 0.73 | 0.81 |
Data from table 2 can be seen that the increase with glass fiber content, and the mechanical performance of composite is gradually increased,
Show that the mechanical performance of composite has obvious dependency to content of glass fiber, can be according to different product to its machinery
Performance requirement difference is selecting the content of the glass fibre in this composite.From table 2, data can be seen that 1-8's simultaneously
After 2000 hours ultraviolet ageings, mechanical strength retention rate is all higher than 80% to embodiment batten, shows that this composite has excellent
Different anti-ultraviolet ageing characteristic, can meet the requirement of outdoor selection.
Claims (9)
1. a kind of anti-ultraviolet ageing glass fiber reinforced polypropylene composite material it is characterised in that: described composite is to be increased by glass
Strong PP composite material particle and asa form for 95:5-90:10 in mass ratio；Described glass fiber reinforced polypropylene composite material
Particle is made up of by weight following component: polypropylene: 50-87, glass fibre: 10-40, compatilizer: 2-7, antioxidant:
0.1-0.4, light stabilizer: 0.1-1；
It is prepared from by following steps:
(1) prepare glass fiber reinforced polypropylene composite material particle: polypropylene, glass fibre, compatilizer, antioxidant and light is stable
Pelletize after melt extruding through extruder after agent mixing；
(2) by the glass fiber reinforced polypropylene composite material particle being obtained in step (1) and asa in mass ratio for 95:5-90:10
Add mechanical mixture in high-speed mixer, finished product.
2. a kind of anti-ultraviolet ageing glass fiber reinforced polypropylene composite material according to claim 1 it is characterised in that: described
Polypropylene be melt index under 230 DEG C/2.16kg be more than 10g/10min COPP, wherein in COPP
Ethylene contents are 4-15 wt%.
3. a kind of anti-ultraviolet ageing glass fiber reinforced polypropylene composite material according to claim 1 it is characterised in that: described
A diameter of 8-15 μm of glass fibre, and surface is through silane or titanate coupling agent impregnation process.
4. a kind of anti-ultraviolet ageing glass fiber reinforced polypropylene composite material according to claim 1 it is characterised in that: described
Compatilizer be polypropylene grafted maleic anhydride (pp-g-mah) or be made up of polypropylene grafted maleic anhydride (pp-g-mah)
Mixture, also includes acrylicstyrene-propylene cyanogen grafted maleic anhydride (asa-g-mah), polypropylene connects in described mixture
Branch glycidyl methacrylate (pp-g-gma), grafting maleic anhydride with ethylene propylene terpolymer (epdm-g-mah), ternary second
One of third grafting rubbers glycidyl methacrylate (epdm-g-gma) or more than one.
5. a kind of anti-ultraviolet ageing glass fiber reinforced polypropylene composite material according to claim 1 it is characterised in that: described
Asa is the copolymer that melt index is more than 40 g/10min under 220 DEG C/10kg.
6. a kind of anti-ultraviolet ageing glass fiber reinforced polypropylene composite material according to claim 1 it is characterised in that: described
Light stabilizer be UV absorbent.
7. a kind of anti-ultraviolet ageing glass fiber reinforced polypropylene composite material according to claim 6 it is characterised in that: described
UV absorbent be oxybenzoic acid phenyl ester, 2-(2'- hydroxyl -5'- aminomethyl phenyl) BTA, 2,4- dihydroxy
Benzophenone, Octabenzone, 2-(2'- hydroxyl -3', the tertiary phenyl of 5'- bis-) -5- chlorination benzotriazole
, at least one in polyolefin-based black masterbatch.
8. a kind of anti-ultraviolet ageing glass fiber reinforced polypropylene composite material according to claim 1 it is characterised in that: described
Antioxidant is four (β-(3,5- di-tert-butyl-hydroxy phenyl) propanoic acid) pentaerythritol ester (1010), three (2,4- di-t-butyls
Phenyl) phosphite ester (168), at least one in the double octadecyl (dstdp) of thio-2 acid.
9. a kind of anti-ultraviolet ageing glass fiber reinforced polypropylene composite material according to claim 1 it is characterised in that: described
In step (1), extruder is double screw extruder.
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| CN117430839B (en) * | 2023-11-29 | 2024-04-12 | 创合新材料科技江苏有限公司 | Automotive heat aging resistant glass fiber reinforced PP material and preparation method thereof |
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