CN103242586A - Low-temperature impact-resistant and low stress whitening-resistant long glass fiber reinforced polypropylene material, and preparation method and application thereof - Google Patents
Low-temperature impact-resistant and low stress whitening-resistant long glass fiber reinforced polypropylene material, and preparation method and application thereof Download PDFInfo
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Abstract
The invention discloses a low-temperature impact-resistant and low stress whitening-resistant long glass fiber reinforced polypropylene material, comprising, by weight, 10%-80% of long glass fiber reinforced polypropylene masterbatches and 20% -90% of low-temperature impact-resistant and low stress whitening-resistant masterbatches, wherein the long glass fiber reinforced polypropylene masterbatches comprise, by weight, 0%-80% of co-polypropylene, 0%-80% of homo-polypropylene, 10%-60% of glass fibers, 1%-10% of grafted polypropylene, 0.1%-2% of an antioxidant and 0.2-2% of a processing agent; the low-temperature impact-resistant and low stress whitening-resistant masterbatches comprise, by weight, 50%-95% of co-polypropylene, 0-30% of a grafted elastomer, 0-20% of a brominated flame retardant, 0.1%-2% of an antioxidant and 0.2-5% of a processing agent. The polypropylene material prepared by the method improves the characteristic of low-temperature impact resistance and reduce generation of stress whitening. A finished product prepared by the material has good drop impact resistance, and can be used for workpieces such as packing cases or electric tools, etc.
Description
Technical field
The present invention relates to a kind of enhancing modified polypropylene material, particularly a kind of low-temperature impact-resistant, the low-stress long glass fiber-reinforced polypropylene materials and its preparation method and application that turns white.
Background technology
Acrylic resin (PP) is a kind of broad-spectrum general-purpose plastics, is made by the propylene monomer polymerization, and the advantage of acrylic resin is low, the low price of density, and has good chemical resistance, mechanical property, good moulding processability preferably.As typical crystal type material, its fusing point adds glass fibre to after its enhancing about 165 ℃, and its mechanical property can increase substantially, and can be used as the structural part of household electrical appliance, automobile-used material or tool industry.
Long glass fiber-reinforced polypropylene materials in actual applications can be to mould Dai Gang and to replace the enhancement engineering plastics, satisfy field service requirementss such as small-arms tr, automotive field, household electrical appliances, but need the row of high strength and high impact-resistant demand for power tool or packaging industry, the stress whitening phenomenon of low-temperature impact difference and material has restricted the use by the Reinforced Polypropylene material, can not satisfy the needs of product.
Chinese patent 200610025811 discloses a kind of mineral-filled proof stress and has turned white and the stress cracking polypropylene material, comprise Co-polypropylene, homo-polypropylene, elastomerics, calcium carbonate and talcum powder, its advantage is that modulus has more than the 1300Mpa when keeping shock strength, and overall target reaches automobile industry to the requirement of panel material.
Chinese patent 200810203878.X discloses a kind of halogen-free flame retardant polypropylene composite material, is made up of following raw material in weight part: polypropylene 82.5～12; Thermo-stabilizer 0.3～2; Processing aid 0.2～1; Toughner 1～10; Fire retardant 10～40; Glass compatilizer 1～5 and glass fibre 5～30.Its advantage is to have excellent fire retardant characteristic and good comprehensive performances.
Chinese patent 1380890A and 1435313A disclose a kind of long glass fiber-reinforced polypropylene materials, be characterized in keeping largely by suitable forming method and the relatively low matrix resin of mixing viscosity the length of glass fibre, obtained the molding than high bending strength and high impact.
The defective of above prior art is material only have been paid close attention to the stabilizing and increasing of mechanical property at initial stage, the cold property that does not relate to material, and general product also has requirement of strength in chilling process, the household electrical appliances product, power tool and packing articles have under cold condition and fall and impact requirement, product is sent out under external force and is produced crazing absorption energy, and the crazing zone is to turn white in the condition of surface of macroscopic view, influence the outward appearance of product, and select to strengthen the class material to the mechanical property of normal temperature and low temperature tensile strength particularly, flexural strength and shock strength require also than higher, and common packing material does not reach requirement.
Summary of the invention
Primary and foremost purpose of the present invention is to provide a kind of low-temperature impact-resistant, the low-stress long glass fiber-reinforced polypropylene materials that turns white, keeping under the prerequisite close to the mechanical property of engineering plastics of material routine, improving the low-temperature impact property of product and reduced the generation of stress whitening.
A further object of the present invention is to provide above-mentioned low-temperature impact-resistant, the low-stress preparation method of long glass fiber-reinforced polypropylene materials of turning white.
The present invention is achieved by the following technical solutions:
A kind of low-temperature impact-resistant, the low-stress long glass fiber-reinforced polypropylene materials that turns white by weight percentage, comprises following component:
Long glass fiber-reinforced polypropylene master batch 10%～80%
Low-temperature impact-resistant, the low-stress master batch 20%～90% that turns white;
Wherein, described long glass fiber-reinforced polypropylene master batch comprises the component of following weight per-cent:
Co-polypropylene 0%～80%, homo-polypropylene 0～80%, glass 10%～60%, graft polypropylene 1%～10%, oxidation inhibitor 0.1%～2%, processing aid 0.2%～2%;
Described low-temperature impact-resistant, the low-stress master batch that turns white comprises the component of following weight per-cent:
Co-polypropylene 50%～95%, grafting elastomerics 0～30%, bromide fire retardant 0～20%, oxidation inhibitor 0.1%～2%, processing aid 0.2%～5%.
The particle length of described long glass fiber-reinforced polypropylene master batch is 6-25mm; The turn white particle length of master batch of described low-temperature impact-resistant, low-stress is 6-25mm.
Described Co-polypropylene melt flow rate (MFR) is 20-1000g/10min; The melt flow rate (MFR) of described homo-polypropylene is 20-1000g/10min.
Described glass is the alkali-free continuous glass fibre, and Fibre diameter is 11-24 μ m.
Graft polypropylene of the present invention is homemade, and by toxilic acid, methylene-succinic acid, vinylformic acid, maleic anhydride, glycidyl acrylate and polypropylene grafted forming, percentage of grafting is 0.3-1.2%.
Described oxidation inhibitor is one or more the mixture among antioxidant 1010, oxidation inhibitor 168, oxidation inhibitor 1098, oxidation inhibitor 1970, oxidation inhibitor PS802, oxidation inhibitor 627, oxidation inhibitor 445, oxidation inhibitor DLTDP, the oxidation inhibitor STDP.
Described processing aid is one or more mixture of stearic acid, butyl stearate, erucicamide, ethylene bis stearamide, octadecyl erucicamide, polyethylene wax, low-molecular-weight polypropylene.
Grafting elastomerics of the present invention is one or more the mixture among grafting POE, grafting PE, the grafting EPDM.Described grafting elastomerics is homemade, and by forming with grafting such as toxilic acid, methylene-succinic acid, vinylformic acid, maleic anhydride, glycidyl acrylates, percentage of grafting is 0.5-1.5%.
Described bromide fire retardant is one or more the mixture in TDE, brominated epoxy resin, brominated triazine, brominated Polystyrene, bromination polycarbonate, tetrabromo-bisphenol, the eight bromo ether.
Low-temperature impact-resistant of the present invention, the low-stress long glass fiber-reinforced polypropylene materials that turns white can be applicable on household electrical appliances product, power tool or the packing articles.
The turn white preparation method of long glass fiber-reinforced polypropylene materials of a kind of low-temperature impact-resistant, low-stress comprises the steps:
The preparation of a, long glass fiber-reinforced polypropylene master batch: Co-polypropylene, homo-polypropylene, graft polypropylene, oxidation inhibitor, processing aid are mixed in mixing tank in described ratio, mixing by forcing machine then, have that glass disperses and resin can fully immerse the dipping die head of glass by one, glass also enters the dipping die head by utility appliance, dipping disperses in die head, by refrigerating unit and pellet device, obtain the long glass fiber-reinforced polypropylene master batch again;
The turn white preparation of master batch of b, low-temperature impact-resistant, low-stress: Co-polypropylene, grafting elastomerics, oxidation inhibitor, processing aid and bromide fire retardant are mixed in mixing tank in described ratio, carry out granulation then, obtain low-temperature impact-resistant, the low-stress master batch that turns white;
C, the above-mentioned long glass fiber-reinforced polypropylene master batch for preparing and low-temperature impact-resistant, the low-stress master batch that turns white is mixed with post-type mixer and namely obtains low-temperature impact-resistant, the low-stress long glass fiber-reinforced polypropylene materials that turns white.
Forcing machine leading portion processing temperature is 160～230 ℃ among the step a of the present invention, the stage casing processing temperature is 200～250 ℃, the back segment processing temperature is 180～230 ℃, the temperature of die head is 250～350 ℃, glass enters the dipping die head by typing and tension device, glass disperses under tension force and pressure effect and is fully soaked into by resin in die head, again by refrigerating unit and pellet device, obtains the long glass fiber-reinforced polypropylene master batch.
Step b of the present invention mixes 3～5min with Co-polypropylene, grafting elastomerics, oxidation inhibitor, processing aid and bromide fire retardant in described ratio in mixing tank, mixing by forcing machine then, forcing machine leading portion processing temperature is 160～230 ℃, the stage casing processing temperature is 200～250 ℃, the back segment processing temperature is 180～230 ℃, pass through water-cooled again, the pelletizing of air-dry back obtains low-temperature impact-resistant, the low-stress master batch that turns white.
The present invention compared with prior art has following beneficial effect:
The master batch that the present invention is turned white by employing low-temperature impact-resistant, low-stress cooperates the long glass fiber-reinforced polypropylene master batch to carry out modification, keeping under the prerequisite close to the mechanical property of engineering plastics of material routine, improving the low-temperature impact property of product and reduced the generation of stress whitening.The long glass fibres strongthener can improve the low-temperature impact property of product, and its low temperature impact strength is compared substantially with the normal temperature shock strength and remained unchanged; The Co-polypropylene and the grafting elastomerics that add can significantly improve its low temperature impact properties and stress whitening; Fall strength of briquette and proof stress that the adding bromide fire retardant can improve product turn white; Good by the anti-property fallen of the finished product of material manufacturing, can be for the relevant product that replaces engineering plastics.
Embodiment
Further specify the present invention below by embodiment, following examples are preferred implementation of the present invention, but embodiments of the present invention are not subjected to the restriction of following embodiment.
In following examples and the Comparative Examples composite-material formula: Co-polypropylene is that the height that Maoming petrochemical industry is produced melts finger Co-polypropylene HHP10; Glass is the continuous glass fibre that megalith produces, diameter 17um; The graft polypropylene self-control, percentage of grafting 0.8%; The self-control of grafting elastomerics; Oxidation inhibitor is selected the mixture of hindered phenol and phosphoric acid lipid for use.
Table 1, table 2 are respectively long glass fiber-reinforced polypropylene master batch and low-temperature impact-resistant, low-stress turn white each component and the content of master batch.
Embodiment 1:
The described low-temperature impact-resistant of present embodiment, the low-stress long glass fiber-reinforced polypropylene materials that turns white, its compositions in weight percentage is long glass fiber-reinforced polypropylene master batch 60%, high low-temperature impact-resistant, the low-stress master batch 40% that turns white, wherein each component in the long glass fiber-reinforced polypropylene master batch is made up of following component, and its concrete ratio sees Table 1 by weight percentage: Co-polypropylene, glass, toxilic acid graft polypropylene, oxidation inhibitor, the hard ester acid of processing aid; The component that low-temperature impact-resistant, low-stress turn white in the master batch is made up of following component, and its concrete ratio sees Table 2 by weight percentage: Co-polypropylene, grafting elastomerics POE, oxidation inhibitor, processing aid erucicamide; Long glass fiber-reinforced polypropylene master batch and low-temperature impact-resistant, the low-stress master batch length of turning white all is 12mm.
Its preparation process is as follows:
A, the preparation of long glass fiber-reinforced polypropylene master batch: with Co-polypropylene, homo-polypropylene, graft polypropylene, oxidation inhibitor, processing aid mixes 3～5min in described ratio in mixing tank, mixing by forcing machine then, forcing machine leading portion processing temperature is 160～230 ℃, the stage casing processing temperature is 200～250 ℃, the back segment processing temperature is 180～230 ℃, plastics mix that the back has by one that glass disperses and resin can fully immerse the dipping die head of glass, die head temperature is 250～350 ℃, glass also enters the dipping die head by typing and tension device, glass disperses under tension force and pressure effect and is fully soaked into by resin in die head, by refrigerating unit and pellet device, obtain the long glass fiber-reinforced polypropylene master batch again;
The turn white preparation of master batch of b, low-temperature impact-resistant, low-stress: Co-polypropylene, grafting elastomerics, oxidation inhibitor, processing aid and bromide fire retardant are mixed 3～5min in described ratio in mixing tank, mixing by forcing machine then, forcing machine leading portion processing temperature is 160～230 ℃, the stage casing processing temperature is 200～250 ℃, the back segment processing temperature is 180～230 ℃, pass through water-cooled again, the pelletizing of air-dry back obtains low-temperature impact-resistant, the low-stress master batch that turns white;
C, the above-mentioned long glass fiber-reinforced polypropylene master batch for preparing and low-temperature impact-resistant, the low-stress master batch that turns white is mixed with post-type mixer and namely obtains low-temperature impact-resistant, the low-stress long glass fiber-reinforced polypropylene materials that turns white.
Embodiment 2
The described low-temperature impact-resistant of present embodiment, the low-stress long glass fiber-reinforced polypropylene materials that turns white, its compositions in weight percentage is long glass fiber-reinforced polypropylene master batch 60%, low-temperature impact-resistant, the low-stress master batch 40% that turns white, wherein the component in the long glass fiber-reinforced polypropylene master batch is made up of following component, and its concrete ratio sees Table 1 by weight percentage: Co-polypropylene, glass, acrylic acid-grafted polypropylene, oxidation inhibitor, processing aid butyl stearate; The component that low-temperature impact-resistant, low-stress turn white in the master batch is made up of following component, and its concrete ratio sees Table 2 by weight percentage: Co-polypropylene, grafting EPDM elastomerics, brominated epoxy resin, oxidation inhibitor, processing aid ethylene bis stearamide; Long glass fiber-reinforced polypropylene master batch and low-temperature impact-resistant, the low-stress master batch master batch length of turning white all is 12mm.
Its preparation process is with embodiment 1.
Embodiment 3
The described low-temperature impact-resistant of present embodiment, the low-stress long glass fiber-reinforced polypropylene materials that turns white, its compositions in weight percentage is long glass fiber-reinforced polypropylene master batch 60%, low-temperature impact-resistant, the low-stress master batch 40% that turns white, wherein the component in the long glass fiber-reinforced polypropylene master batch is made up of following component, and its concrete ratio sees Table 1 by weight percentage: Co-polypropylene, glass, acrylic acid-grafted polypropylene, oxidation inhibitor, processing aid butyl stearate; The component that low-temperature impact-resistant, low-stress turn white in the master batch is made up of following component, and its concrete ratio sees Table 2 by weight percentage: Co-polypropylene, grafting POE elastomerics, brominated Polystyrene, oxidation inhibitor, processing aid ethylene bis stearamide; Long glass fiber-reinforced polypropylene master batch and low-temperature impact-resistant, the low-stress master batch master batch length of turning white all is 12mm.
Its preparation process is with embodiment 1.
Embodiment 4
The described low-temperature impact-resistant of present embodiment, the low-stress long glass fiber-reinforced polypropylene materials that turns white, its compositions in weight percentage is long glass fiber-reinforced polypropylene master batch 60%, low-temperature impact-resistant, the low-stress master batch 40% that turns white, wherein the component in the long glass fiber-reinforced polypropylene master batch is made up of following component, and its concrete ratio sees Table 1 by weight percentage: Co-polypropylene, glass, maleic anhydride inoculated polypropylene, oxidation inhibitor, processing aid butyl stearate; The component that low-temperature impact-resistant, low-stress turn white in the master batch is made up of following component, and its concrete ratio sees Table 2 by weight percentage: Co-polypropylene, grafting PE elastomerics, brominated triazine, oxidation inhibitor, processing aid ethylene bis stearamide; Long glass fiber-reinforced polypropylene master batch and low-temperature impact-resistant, the low-stress master batch master batch length of turning white all is 12mm.
Its preparation process is with embodiment 1.
Embodiment 5
The described low-temperature impact-resistant of present embodiment, the low-stress long glass fiber-reinforced polypropylene materials that turns white, its compositions in weight percentage is long glass fiber-reinforced polypropylene master batch 60%, low-temperature impact-resistant, the low-stress master batch 40% that turns white, wherein the component in the long glass fiber-reinforced polypropylene master batch is made up of following component, and its concrete ratio sees Table 1 by weight percentage: Co-polypropylene, glass, maleic anhydride inoculated polypropylene, oxidation inhibitor, processing aid ethylene bis stearamide; The component that low-temperature impact-resistant, low-stress turn white in the master batch is made up of following component, and its concrete ratio sees Table 2 by weight percentage: Co-polypropylene, grafting POE elastomerics, TDE, oxidation inhibitor, processing aid erucicamide; Long glass fiber-reinforced polypropylene master batch and low-temperature impact-resistant, the low-stress master batch master batch length of turning white all is 12mm.
Its preparation process is with embodiment 1.
Embodiment 6:
The described low-temperature impact-resistant of present embodiment, the low-stress long glass fiber-reinforced polypropylene materials that turns white, its compositions in weight percentage is long glass fiber-reinforced polypropylene master batch 60%, low-temperature impact-resistant, the low-stress master batch 40% that turns white, wherein the component in the long glass fiber-reinforced polypropylene master batch is made up of following component, and its concrete ratio sees Table 1 by weight percentage: Co-polypropylene, homo-polypropylene, glass, toxilic acid graft polypropylene, oxidation inhibitor, the hard ester acid of processing aid; The component that low-temperature impact-resistant, low-stress turn white in the master batch is made up of following component, and its concrete ratio sees Table 2 by weight percentage: Co-polypropylene, grafting POE elastomerics, TDE, oxidation inhibitor, processing aid erucicamide; Long glass fiber-reinforced polypropylene master batch and low-temperature impact-resistant, the low-stress master batch master batch length of turning white all is 6mm.
Its preparation process is with embodiment 1.
Embodiment 7
The described low-temperature impact-resistant of present embodiment, the low-stress long glass fiber-reinforced polypropylene materials that turns white, its compositions in weight percentage is long glass fiber-reinforced polypropylene master batch 20%, low-temperature impact-resistant, the low-stress master batch 80% that turns white, wherein the component in the long glass fiber-reinforced polypropylene master batch is made up of following component, and its concrete ratio sees Table 1 by weight percentage: Co-polypropylene, homo-polypropylene, glass, acrylic acid-grafted polypropylene, oxidation inhibitor, processing aid butyl stearate; The component that low-temperature impact-resistant, low-stress turn white in the master batch is made up of following component, and its concrete ratio sees Table 2 by weight percentage: Co-polypropylene, grafting POE elastomerics, brominated polycarbonate, oxidation inhibitor, processing aid ethylene bis stearamide; Long glass fiber-reinforced polypropylene master batch and low-temperature impact-resistant, the low-stress master batch master batch length of turning white all is 12mm.
Its preparation process is with embodiment 1.
Embodiment 8
The described low-temperature impact-resistant of present embodiment, the low-stress long glass fiber-reinforced polypropylene materials that turns white, its compositions in weight percentage is long glass fiber-reinforced polypropylene master batch 80%, low-temperature impact-resistant, the low-stress master batch 20% that turns white, wherein the component in the long glass fiber-reinforced polypropylene master batch is made up of following component, and its concrete ratio sees Table 1 by weight percentage: Co-polypropylene, glass, glycidyl acrylate graft polypropylene, oxidation inhibitor, processing aid low-molecular-weight polypropylene; The component that low-temperature impact-resistant, low-stress turn white in the master batch is made up of following component, and its concrete ratio sees Table 2 by weight percentage: Co-polypropylene, grafting PE elastomerics, TDE, oxidation inhibitor, processing aid stearic acid; Long glass fiber-reinforced polypropylene master batch and low-temperature impact-resistant, the low-stress master batch master batch length of turning white all is 12mm.
Its preparation process is with embodiment 1.
Embodiment 9
The described low-temperature impact-resistant of present embodiment, the low-stress long glass fiber-reinforced polypropylene materials that turns white, its compositions in weight percentage is long glass fiber-reinforced polypropylene master batch 50%, low-temperature impact-resistant, the low-stress master batch 50% that turns white, wherein the component in the long glass fiber-reinforced polypropylene master batch is made up of following component, and its concrete ratio sees Table 1 by weight percentage: Co-polypropylene, glass, maleic anhydride inoculated polypropylene, oxidation inhibitor, processing aid octadecyl erucicamide; The component that low-temperature impact-resistant, low-stress turn white in the master batch is made up of following component, and its concrete ratio sees Table 2 by weight percentage: Co-polypropylene, grafting POE elastomerics, brominated epoxy resin, oxidation inhibitor, the hard ester acid of processing aid; Long glass fiber-reinforced polypropylene master batch and low-temperature impact-resistant, the low-stress master batch master batch length of turning white all is 18mm.
Its preparation process is with embodiment 1.
Comparative Examples 1
A kind of long glass fiber-reinforced polypropylene materials is made of following by weight percentage: long glass fiber-reinforced polypropylene master batch 60%, acrylic resin 40%, wherein the long glass fiber-reinforced polypropylene master batch is made of following weight per-cent component: homo-polypropylene 44%, glass 50%, graft polypropylene 5%, oxidation inhibitor 0.5%, processing aid 0.5%.
Its preparation process is as follows:
A, the preparation of long glass fiber-reinforced polypropylene master batch: with Co-polypropylene, homo-polypropylene, graft polypropylene, oxidation inhibitor, processing aid mixes 3～5min in described ratio in mixing tank, mixing by forcing machine then, forcing machine leading portion processing temperature is 160～230 ℃, the stage casing processing temperature is 200～250 ℃, the back segment processing temperature is 180～230 ℃, plastics mix that the back has by one that glass disperses and resin can fully immerse the dipping die head of glass, die head temperature is 250～350 ℃, glass enters the dipping die head by typing and tension device, glass disperses under tension force and pressure effect and is fully soaked into by resin in die head, by refrigerating unit and pellet device, obtain the long glass fiber-reinforced polypropylene master batch again;
B, the above-mentioned long glass fiber-reinforced polypropylene master batch for preparing and acrylic resin mixed with post-type mixer namely get product.
Comparative Examples 2
A kind of fiber glass reinforced polypropylene material is made of following by weight percentage: Co-polypropylene 59%, glass 30%, graft polypropylene 5%, grafting POE elastomerics 5%, oxidation inhibitor 0.5%, processing aid 0.5%.
Its preparation process is as follows: except glass, other resin and auxiliary agent mix 3～5min in mixing tank after, accurately feed by weighing balance in the forcing machine front portion, glass is fed measuring apparatus by side and is added at the forcing machine middle part, forcing machine leading portion processing temperature is 160～230 ℃, and the stage casing processing temperature is 200～250 ℃, and the back segment processing temperature is 180～230 ℃, pass through water-cooled again, air-dry back pelletizing namely gets product.
Comparative Examples 3
A kind of fiber glass reinforced polypropylene material is made of following by weight percentage: Co-polypropylene 44%, glass 30%, graft polypropylene 5%, grafting POE elastomerics 5%, TDE 15%, oxidation inhibitor 0.5%, processing aid 0.5%.
Its preparation process is with Comparative Examples 2.
The shock resistance of matrix material characterizes by two kinds of methods, a kind of is that notched Izod impact strength, low temperature by test material lacks product shock strength sign, another kind is by material being made the square plate of 150mm*150mm*3mm, square plate is lived by the upholder frame, with the ball of 0.5KG from the different height freely falling body side of striking plates, how many side's of observation plates crackle highly occurs at, and judge the degree that surface stress turns white and occurs, stress whitening is by by being 5 grades to difference well: do not have, slight, fewer, serious and seriously.
Its test result of ball falling impact intensity of embodiment 1-9 and Comparative Examples 1-3 being carried out notched Izod impact strength, low temperature notched shock strength and normal temperature and low temperature sees Table 3-4.
Component and the content of long glass fiber-reinforced polypropylene master batch among the table 1 embodiment 1-9
Low-temperature impact-resistant, low-stress component and the content of master batch that turns white among the table 2 embodiment 1-9
The The performance test results of table 3 embodiment 1-6
The The performance test results of table 4 embodiment 7-9 and Comparative Examples 1-3
From to the measurement result of each embodiment and Comparative Examples as can be known, low temperature notched shock strength and the ball falling impact intensity of each embodiment all are higher than Comparative Examples, and stress whitening is better than Comparative Examples.
Claims (10)
1. a low-temperature impact-resistant, low-stress long glass fiber-reinforced polypropylene materials that turns white is characterized in that: by weight percentage, comprise following component:
Long glass fiber-reinforced polypropylene master batch 10%～80%
Low-temperature impact-resistant, the low-stress master batch 20%～90% that turns white;
Wherein, described long glass fiber-reinforced polypropylene master batch comprises the component of following weight per-cent:
Co-polypropylene 0%～80%, homo-polypropylene 0～80%, glass 10%～60%, graft polypropylene 1%～10%, oxidation inhibitor 0.1%～2%, processing aid 0.2%～2%;
Described low-temperature impact-resistant, the low-stress master batch that turns white comprises the component of following weight per-cent:
Co-polypropylene 50%～95%, grafting elastomerics 0～30%, bromide fire retardant 0～20%, oxidation inhibitor 0.1%～2%, processing aid 0.2%～5%.
2. low-temperature impact-resistant according to claim 1, the low-stress long glass fiber-reinforced polypropylene materials that turns white, it is characterized in that: the particle length of described long glass fiber-reinforced polypropylene master batch is 6-25mm; The turn white particle length of master batch of described low-temperature impact-resistant, low-stress is 6-25mm.
3. low-temperature impact-resistant according to claim 1, the low-stress long glass fiber-reinforced polypropylene materials that turns white is characterized in that described Co-polypropylene melt flow rate (MFR) is 20-1000g/10min; The melt flow rate (MFR) of described homo-polypropylene is 20-1000g/10min.
4. low-temperature impact-resistant according to claim 1, the low-stress long glass fiber-reinforced polypropylene materials that turns white is characterized in that described glass is the alkali-free continuous glass fibre, and Fibre diameter is 11-24 μ m.
5. low-temperature impact-resistant according to claim 1, the low-stress long glass fiber-reinforced polypropylene materials that turns white, it is characterized in that, described graft polypropylene is by toxilic acid, methylene-succinic acid, vinylformic acid, maleic anhydride, glycidyl acrylate and polypropylene grafted forming, and percentage of grafting is 0.3-1.2%.
6. low-temperature impact-resistant according to claim 1, the low-stress long glass fiber-reinforced polypropylene materials that turns white, it is characterized in that described processing aid is one or more mixture of stearic acid, butyl stearate, erucicamide, ethylene bis stearamide, octadecyl erucicamide, polyethylene wax, low-molecular-weight polypropylene; Described oxidation inhibitor is one or more the mixture among antioxidant 1010, oxidation inhibitor 168, oxidation inhibitor 1098, oxidation inhibitor 1970, oxidation inhibitor PS802, oxidation inhibitor 627, oxidation inhibitor 445, oxidation inhibitor DLTDP, the oxidation inhibitor STDP.
7. low-temperature impact-resistant according to claim 1, the low-stress long glass fiber-reinforced polypropylene materials that turns white is characterized in that, described grafting elastomerics is one or more the mixture among grafting POE, grafting PE, the grafting EPDM.
8. low-temperature impact-resistant according to claim 1, the low-stress long glass fiber-reinforced polypropylene materials that turns white, it is characterized in that described bromide fire retardant is one or more the mixture in TDE, brominated epoxy resin, brominated triazine, brominated Polystyrene, bromination polycarbonate, tetrabromo-bisphenol, the eight bromo ether.
9. each described low-temperature impact-resistant of claim 1～8, the low-stress preparation method of long glass fiber-reinforced polypropylene materials of turning white is characterized in that, comprises the steps:
The preparation of a, long glass fiber-reinforced polypropylene master batch: Co-polypropylene, homo-polypropylene, graft polypropylene, oxidation inhibitor, processing aid are mixed in mixing tank in described ratio, mixing by forcing machine then, have that glass disperses and resin can fully immerse the dipping die head of glass by one, glass also enters the dipping die head by utility appliance, dipping disperses in die head, by refrigerating unit and pellet device, obtain the long glass fiber-reinforced polypropylene master batch again;
The turn white preparation of master batch of b, low-temperature impact-resistant, low-stress: Co-polypropylene, grafting elastomerics, oxidation inhibitor, processing aid and bromide fire retardant are mixed in mixing tank in described ratio, carry out granulation then, obtain low-temperature impact-resistant, the low-stress master batch that turns white;
C, the above-mentioned long glass fiber-reinforced polypropylene master batch for preparing and low-temperature impact-resistant, the low-stress master batch that turns white is mixed with post-type mixer and namely obtains low-temperature impact-resistant, the low-stress long glass fiber-reinforced polypropylene materials that turns white.
10. each described low-temperature impact-resistant of claim 1～8, the low-stress application of long glass fiber-reinforced polypropylene materials on household electrical appliances product, power tool or packing articles of turning white.
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| CN104877231A (en) * | 2015-03-26 | 2015-09-02 | 苏州市德莱尔建材科技有限公司 | Low-temperature impact resistant PP and preparation method thereof |
| CN107892776A (en) * | 2017-11-21 | 2018-04-10 | 天津金发新材料有限公司 | It is a kind of it is low turn white, resistance to oil bath, low temperature toughness reinforcing, bromine system anti-flaming polypropylene material |
| CN108586942A (en) * | 2018-04-09 | 2018-09-28 | 广东聚石化学股份有限公司 | Low temperature resistant anlistatig glass fiber reinforced polypropylene material of one kind and preparation method thereof |
| CN110283382A (en) * | 2019-06-26 | 2019-09-27 | 浙江吉利控股集团有限公司 | A kind of vehicle instrument desk framework material, preparation method and vehicle based on long glass fiber-reinforced polypropylene |
| WO2020010989A1 (en) * | 2018-07-09 | 2020-01-16 | 金发科技股份有限公司 | Flame-retardant polypropylene material, preparation method, and application thereof |
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| CN112442236A (en) * | 2020-11-23 | 2021-03-05 | 江苏金发科技新材料有限公司 | Low-temperature impact-resistant flame-retardant polypropylene composition and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104513428A (en) * | 2013-09-27 | 2015-04-15 | 现代自动车株式会社 | Composition of polypropylene having improved tactility and scratch resistance and methods of use thereof |
| CN104513428B (en) * | 2013-09-27 | 2018-05-18 | 现代自动车株式会社 | Polypropene composition and its application method with improved sense of touch and scratch resistance |
| DE102013227126B4 (en) | 2013-09-27 | 2022-09-01 | Gs Caltex | Polypropylene resin composition, molding with the same and use of the same for increasing tactility and scratch resistance of a molding |
| CN104877231A (en) * | 2015-03-26 | 2015-09-02 | 苏州市德莱尔建材科技有限公司 | Low-temperature impact resistant PP and preparation method thereof |
| CN107892776A (en) * | 2017-11-21 | 2018-04-10 | 天津金发新材料有限公司 | It is a kind of it is low turn white, resistance to oil bath, low temperature toughness reinforcing, bromine system anti-flaming polypropylene material |
| CN108586942A (en) * | 2018-04-09 | 2018-09-28 | 广东聚石化学股份有限公司 | Low temperature resistant anlistatig glass fiber reinforced polypropylene material of one kind and preparation method thereof |
| WO2020010989A1 (en) * | 2018-07-09 | 2020-01-16 | 金发科技股份有限公司 | Flame-retardant polypropylene material, preparation method, and application thereof |
| CN110283382A (en) * | 2019-06-26 | 2019-09-27 | 浙江吉利控股集团有限公司 | A kind of vehicle instrument desk framework material, preparation method and vehicle based on long glass fiber-reinforced polypropylene |
| CN111825946A (en) * | 2020-09-16 | 2020-10-27 | 佛山市东丽塑胶有限公司 | Enhanced modified ABS resin and preparation method thereof |
| CN112442236A (en) * | 2020-11-23 | 2021-03-05 | 江苏金发科技新材料有限公司 | Low-temperature impact-resistant flame-retardant polypropylene composition and preparation method thereof |
| CN112442236B (en) * | 2020-11-23 | 2023-03-14 | 江苏金发科技新材料有限公司 | Low-temperature impact-resistant flame-retardant polypropylene composition and preparation method thereof |
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