CN105462065A - Creep-resistish long glass fiber, creep-resistish long glass fiber enhanced propene polymer (PP) composite material and preparation method thereof - Google Patents
Creep-resistish long glass fiber, creep-resistish long glass fiber enhanced propene polymer (PP) composite material and preparation method thereof Download PDFInfo
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- CN105462065A CN105462065A CN201510953913.XA CN201510953913A CN105462065A CN 105462065 A CN105462065 A CN 105462065A CN 201510953913 A CN201510953913 A CN 201510953913A CN 105462065 A CN105462065 A CN 105462065A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
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Abstract
The invention discloses a creep-resistish long glass fiber, a creep-resistish long glass fiber enhanced propene polymer (PP) composite material and a preparation method thereof. The creep-resistish long glass fiber enhanced PP composite material has excellent impact resistance property and creep-resistish performance by adopting a special assistant and a compatilizer to reduce creeping problems and floating fibre problems, has smooth surface without floating fibers, is particularly suitable to prepare products such as vehicle parts, electronics components, instrument parts and aviation equipment parts and the like.
Description
Technical field
The present invention relates to field of material technology, be specifically related to a kind of roving glass fiber of resistance to creep, the long glass fiber reinforced of resistance to creep PP matrix material and preparation method thereof.
Background technology
Long glass fibres strengthens the pellet that pellet refers to one-way fiber arrangement, and its staple length is equal with pellet length, is generally greater than 5mm.At home, the research of roving glass fiber is still in the starting stage, and roving glass fiber is generally used for the mechanical property improving macromolecular material.Acrylic resin (PP) is a kind of broad-spectrum general-purpose plastics, be polymerized obtained by propylene monomer, the advantage of acrylic resin is that density is low, low price, and has excellent chemical resistance, preferably mechanical property, outstanding folding resistance and good moulding processability.As typical crystalline materials, its fusing point is near 165 DEG C.
Long glass fiber reinforced PP material has high strength, high impact resistance, and dimensional stabilizing is good, is the material of a kind of " Qiang Erren ", and PP, after interpolation glass fiber reinforcement, improves its mechanical property, heat resistant type and dimensional stability greatly.To mould Dai Gang and to replace enhancement engineering plastics, the field service requirementss such as small-arms tr, automotive field, household electrical appliances can be met in actual applications.But existing roving glass fiber material molecule intermolecular forces is low, easily larger creep is there is in fiber under the effect of long-time power, cause the instability of size, form, seriously limit the application in the roving glass fiber field such as automobile component, electronic product element, instrument parts, air equipment parts of particularly high-accuracy requirement in many aspects.
Summary of the invention
In view of this, the present invention discloses a kind of roving glass fiber of resistance to creep.
Object of the present invention is achieved through the following technical solutions:
A kind of roving glass fiber of resistance to creep, its raw material comprises by weight:
Roving glass fiber 70-90 part;
Methyl violet 0.2-0.3 part;
Magnesium chlorate 0.03-0.09 part.
Methyl violet is commonly called as Viola crystallina, Viola crystallina, is commercially available prod.Through checking, methyl violet and magnesium chlorate (Mg (ClO
3)
2.6H
2o) synergistic effectively can improve the creep resistance of roving glass fiber, and then effectively improves the structural stability of roving glass fiber, avoids because its creep causes product size instability, distortion.Because roving glass fiber creep resistance improves, make it to be used in the product scope higher to size and dimension stability requirement.
Further, the above-mentioned roving glass fiber of resistance to creep its preparation method is:
(1) normal heptane immersion treatment: roving glass fiber is immersed in normal heptane and carry out swelling treatment, the treatment time is 12h ~ 24h;
(2) washing with acetone: adopt ultrasonic oscillation to wash the roving glass fiber after swelling, the drying in oven being then placed in 150-200 DEG C, to constant weight, obtains the described roving glass fiber of resistance to creep.
Further, described roving glass fiber is alkali-free continuous glass-fiber, and described alkali-free continuous glass-fiber diameter is 11-20 μm.
The present invention can select any one commercially available roving glass fiber to realize, but can the alkali-free continuous glass-fiber of particularly preferably above-mentioned size.
The present invention provides a kind of long glass fiber reinforced PP material of resistance to creep simultaneously, and its raw material comprises by weight:
The described roving glass fiber of resistance to creep 30-45 part;
PP60-80 part;
Compatilizer 0.3-2 part;
Oxidation inhibitor 0.1-0.7 part;
Fire retardant 1-3 part;
Its raw material of described compatilizer comprises Natvosol 5-7 part, propylene glycol 0.1-0.5 part, methylisothiazolinone 0.01-0.07 part, saltpetre 3-8 part by weight.
In the present invention, a kind of compatilizer is set especially, effectively can improves the consistency of the roving glass fiber of resistance to creep and PP.It is comparatively obvious that the roving glass fiber of resistance to creep of the present invention floats fine problem.The chemistry of methylisothiazolinone is called MIT, contriver finds that there is the methylisothiazolinone of trace and saltpetre when existing, just the consistency of the roving glass fiber of resistance to creep and PP material can significantly be improved, roving glass fiber is made to be blended in PP material equably, the mechanical property of the PP matrix material obtained by effectively improving.Natvosol effectively can improve the bonding strength of roving glass fiber and PP material, improves the notched Izod impact hit intensity of material.It is more obvious that compatilizer promotes effect to the consistency of Co-polypropylene.
The preparation method of the long glass fiber reinforced PP material of described resistance to creep, it comprises following operation:
A. compatilizer is prepared: adopt airbath to be heated to 100 DEG C in Natvosol, saltpetre, instillation propylene glycol, after insulation 30min, add methylisothiazolinone;
B. by setting weight part PP, photostabilizer, toughner, compatilizer, oxidation inhibitor, thermoplastic stablizer added after super mixer mixes and be heated to through twin screw extruder the PP mixture that 140 ~ 169 DEG C obtain plasticizing, then the PP mixture plastified is by twin screw extruder press-in dipping die head, the roving glass fiber of impregnating dispersion setting weight part, is prepared into through traction, cooling forming process the long glass fiber reinforced PP material that length is the resistance to creep of 10-16mm.
Further, during the impregnating dispersion roving glass fiber of resistance to creep, the temperature in twin screw extruder is 130-150 DEG C.
Floating fine for reducing, during the impregnating dispersion roving glass fiber of resistance to creep, the temperature of twin screw extruder reduces under certain amplitude, is prevented floating fine by the mobility reducing PP.
The present invention selects methyl violet and magnesium chlorate to roving glass fiber modification, improves the creep resistance of roving glass fiber self, eliminates roving glass fiber stress and is out of shape the creep problem caused, roving glass fiber can be made to maintain the stability of its size and dimension for a long time.The present invention simultaneously also arranges a kind of compatilizer to overcome the specific floating fine problem of the roving glass fiber of resistance to creep, the roving glass fiber of resistance to creep of the present invention evenly, is stably present in PP material, finally effectively improves the mechanical property of obtained PP matrix material.PP matrix material provided by the invention has excellent erosion-resisting characteristics, creep resistance, and smooth surface is without floating fibre, is particularly useful for preparing the products such as automobile component, electronic product element, instrument parts, air equipment parts.
Embodiment
The present invention to be described in further detail below in conjunction with embodiment for the ease of it will be appreciated by those skilled in the art that:
Embodiment 1
The present embodiment provides a kind of roving glass fiber of resistance to creep, and its raw material comprises by weight:
Roving glass fiber 85 parts;
Methyl violet 0.25 part;
Magnesium chlorate 0.07 part.
Further, the above-mentioned roving glass fiber of resistance to creep its preparation method is:
(1) normal heptane immersion treatment: roving glass fiber is immersed in normal heptane and carry out swelling treatment, the treatment time is 12h;
(2) washing with acetone: adopt ultrasonic oscillation to wash the roving glass fiber after swelling, the drying in oven being then placed in 180 DEG C, to constant weight, obtains the described roving glass fiber of resistance to creep.
Further, described alkali-free continuous glass-fiber diameter is 15 μm.
Embodiment 2
The present embodiment provides a kind of roving glass fiber of resistance to creep, and its raw material comprises by weight:
Roving glass fiber 70 parts;
Methyl violet 0.3 part;
Magnesium chlorate 0.03 part.
Further, the above-mentioned roving glass fiber of resistance to creep its preparation method is:
(1) normal heptane immersion treatment: roving glass fiber is immersed in normal heptane and carry out swelling treatment, the treatment time is 24h;
(2) washing with acetone: adopt ultrasonic oscillation to wash the roving glass fiber after swelling, the drying in oven being then placed in 150 DEG C, to constant weight, obtains the described roving glass fiber of resistance to creep.
Further, described roving glass fiber is commercially available prod.
Embodiment 3
The present embodiment provides a kind of roving glass fiber of resistance to creep, and its raw material comprises by weight:
Roving glass fiber 90 parts;
Methyl violet 0.2 part;
Magnesium chlorate 0.09 part.
Raw material soaking is soaked by the present embodiment in the normal heptane of 40 DEG C to be made for 10 hours.
Embodiment 4
A long glass fiber reinforced PP material for resistance to creep, its raw material comprises by weight:
The roving glass fiber of resistance to creep of embodiment 1 30 parts;
PP70 part;
Compatilizer 1.5 parts;
0.5 part, oxidation inhibitor;
Fire retardant 2 parts;
Its raw material of described compatilizer comprises Natvosol 6 parts, propylene glycol 0.4 part, methylisothiazolinone 0.04 part, 4 parts, saltpetre by weight.
Oxidation inhibitor is commercially available irgasfos 168. fire retardant is commercially available fire retardant antimonous oxide.
The present embodiment is also by the preparation method of the long glass fiber reinforced PP material of above-mentioned resistance to creep, and it comprises following operation:
A. compatilizer is prepared: adopt airbath to be heated to 100 DEG C in Natvosol, saltpetre, instillation propylene glycol, after insulation 30min, add methylisothiazolinone;
B. by setting weight part PP, photostabilizer, toughner, compatilizer, oxidation inhibitor, thermoplastic stablizer added after super mixer mixes and be heated to through twin screw extruder the PP mixture that 150 DEG C obtain plasticizing, then the PP mixture plastified is by twin screw extruder press-in dipping die head, the roving glass fiber of impregnating dispersion setting weight part, is prepared into through traction, cooling forming process the long glass fiber reinforced PP material that length is the resistance to creep of 10-16mm.
Further, during the impregnating dispersion roving glass fiber of resistance to creep, the temperature in twin screw extruder is 150 DEG C.
Embodiment 5
A long glass fiber reinforced PP material for resistance to creep, its raw material comprises by weight:
The roving glass fiber of resistance to creep of embodiment 1 45 parts;
PP60 part;
Compatilizer 2 parts;
0.1 part, oxidation inhibitor;
Fire retardant 3 parts;
Its raw material of described compatilizer comprises Natvosol 5 parts, propylene glycol 0.5 part, methylisothiazolinone 0.01 part, 8 parts, saltpetre by weight.
Adopt the blending method preparation of prior art.
Embodiment 6
A long glass fiber reinforced PP material for resistance to creep, its raw material comprises by weight:
The roving glass fiber of resistance to creep of embodiment 1 40 parts;
PP80 part;
Compatilizer 0.3 part;
0.7 part, oxidation inhibitor;
Fire retardant 1 part;
Its raw material of described compatilizer comprises Natvosol 7 parts, propylene glycol 0.1 part, methylisothiazolinone 0.07 part, 3 parts, saltpetre by weight.
The present embodiment is also by the preparation method of the long glass fiber reinforced PP material of above-mentioned resistance to creep, and it comprises following operation:
A. compatilizer is prepared: adopt airbath to be heated to 100 DEG C in Natvosol, saltpetre, instillation propylene glycol, after insulation 30min, add methylisothiazolinone;
B. by setting weight part PP, photostabilizer, toughner, compatilizer, oxidation inhibitor, thermoplastic stablizer added after super mixer mixes and be heated to through twin screw extruder the PP mixture that 140 DEG C obtain plasticizing, then the PP mixture plastified is by twin screw extruder press-in dipping die head, the roving glass fiber of impregnating dispersion setting weight part, is prepared into through traction, cooling forming process the long glass fiber reinforced PP material that length is the resistance to creep of 10-16mm.
Comparative example 1
This comparative example provides a kind of roving glass fiber, and its raw material comprises by weight:
Roving glass fiber 85 parts;
Methyl violet 0.3 part.
Its preparation method is consistent with embodiment 1.
This comparative example provides a kind of long glass fiber reinforced PP material simultaneously, and its raw material comprises by weight:
The roving glass fiber of resistance to creep of this comparative example 30 parts;
PP75 part;
Compatilizer 0.9 part;
0.6 part, oxidation inhibitor;
Fire retardant 2 parts;
Its raw material of described compatilizer comprises Natvosol 6 parts, propylene glycol 0.4 part, 5 parts, saltpetre by weight.
The mechanical property of matrix material is judged by the tensile strength of test gained, the shock resistance of material is characterized by two kinds of methods, a kind of is characterized by the notched Izod impact strength of test material and unnotched impact strength, another kind is the square plate by material being made 150mm*150mm*3mm, square plate is lived by upholder frame, how much with the ball of 0.5KG from the different height freely falling body side of striking plates, highly there is crackle in the side's of observation plate.The floating fine situation of matrix material be on the mould by carrying out polished finish on surface the material side of making plate, observed by secondary former phase instrument effects on surface.
Carry out tensile strength, impact property and surface floating fiber situation to embodiment 4-5 and comparative example 1 to measure, its test result is in table 1.
| Test event | Tensile strength/MPa | Notched Izod impact strength/KJ/m 2 | Unnotched impact strength/KJ/m 2 | Ball falling impact/cm | Floating fine situation |
| Embodiment 4 | 110 | 16 | 22 | 150 | Without obviously floating fine |
| Embodiment 5 | 120 | 20 | 28 | 145 | Without obviously floating fine |
| Embodiment 6 | 115 | 18 | 25 | 140 | Without obviously floating fine |
| Comparative example 1 | 110 | 15 | 18 | 115 | Floating obviously fine |
Injection moulding is tested.
Adopt prior art to carry out injection moulding in PP matrix material, be shaped to the square of 30cm × 30cm × 30cm, observe its surface floating fiber situation.Cut out the epidermis of 30cm × 30cm × 2cm on 6 surfaces of square, and obtain the dice that cuts epidermis; The density rate of test epidermis and dice.Density rate ρ=(ρ epidermis-ρ dice) × 100%.Its result is as shown in table 2.
| Experimental group | ρ（%） |
| Embodiment 4 | 0.030±0.003 |
| Embodiment 6 | 0.042±0.004 |
| Comparative example 1 | 4.565±0.002 |
Resistance to creep test.
The PP matrix material of embodiment and comparative example is made radius 1cm, and long 20cm's is rectangular.Rectangular two ends apply the pulling force of 5000N respectively, maintain 100.Test its length growth rate.Its result is as table 2
| Experimental group | Length increases (%) |
| Embodiment 4 | 0.52 |
| Embodiment 6 | 0.89 |
| Comparative example 1 | 5.32 |
Be more than wherein specific implementation of the present invention, it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these apparent replacement forms all belong to protection scope of the present invention.
Claims (6)
1. the roving glass fiber of resistance to creep, its raw material comprises by weight:
Roving glass fiber 70-90 part;
Methyl violet 0.2-0.3 part;
Magnesium chlorate 0.03-0.09 part.
2. the roving glass fiber of resistance to creep according to claim 1, is characterized in that: its preparation method is:
(1) normal heptane immersion treatment: roving glass fiber is immersed in normal heptane and carry out swelling treatment, the treatment time is 12h ~ 24h;
(2) washing with acetone: adopt ultrasonic oscillation to wash the roving glass fiber after swelling, the drying in oven being then placed in 150-200 DEG C, to constant weight, obtains the described roving glass fiber of resistance to creep.
3. creep resistance roving glass fiber according to claim 1, is characterized in that: described roving glass fiber is alkali-free continuous glass-fiber, and described alkali-free continuous glass-fiber diameter is 11-20 μm.
4. a long glass fiber reinforced PP material for resistance to creep, its raw material comprises by weight:
The roving glass fiber of resistance to creep 30-45 part as described in any one of claims 1 to 3;
PP60-80 part;
Compatilizer 0.3-2 part;
Oxidation inhibitor 0.1-0.7 part;
Fire retardant 1-3 part;
Its raw material of described compatilizer comprises Natvosol 5-7 part, propylene glycol 0.1-0.5 part, methylisothiazolinone 0.01-0.07 part, saltpetre 3-8 part by weight.
5. the preparation method of the long glass fiber reinforced PP material of resistance to creep as claimed in claim 4, it comprises following operation:
A. compatilizer is prepared: adopt airbath to be heated to 100 DEG C in Natvosol, saltpetre, instillation propylene glycol, after insulation 30min, add methylisothiazolinone;
B. by setting weight part PP, photostabilizer, toughner, compatilizer, oxidation inhibitor, thermoplastic stablizer added after super mixer mixes and be heated to through twin screw extruder the PP mixture that 140 ~ 169 DEG C obtain plasticizing, then the PP mixture plastified is by twin screw extruder press-in dipping die head, the roving glass fiber of impregnating dispersion setting weight part, is prepared into through traction, cooling forming process the long glass fiber reinforced PP material that length is the resistance to creep of 10-16mm.
6. method according to claim 5, is characterized in that: during the impregnating dispersion roving glass fiber of resistance to creep, and the temperature in twin screw extruder is 130-150 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510953913.XA CN105462065A (en) | 2015-12-18 | 2015-12-18 | Creep-resistish long glass fiber, creep-resistish long glass fiber enhanced propene polymer (PP) composite material and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510953913.XA CN105462065A (en) | 2015-12-18 | 2015-12-18 | Creep-resistish long glass fiber, creep-resistish long glass fiber enhanced propene polymer (PP) composite material and preparation method thereof |
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|---|---|
| CN105462065A true CN105462065A (en) | 2016-04-06 |
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| CN201510953913.XA Pending CN105462065A (en) | 2015-12-18 | 2015-12-18 | Creep-resistish long glass fiber, creep-resistish long glass fiber enhanced propene polymer (PP) composite material and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112048124A (en) * | 2020-08-05 | 2020-12-08 | 上海金发科技发展有限公司 | Glass fiber reinforced polypropylene material with low-floating-fiber surface and preparation method thereof |
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2015
- 2015-12-18 CN CN201510953913.XA patent/CN105462065A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112048124A (en) * | 2020-08-05 | 2020-12-08 | 上海金发科技发展有限公司 | Glass fiber reinforced polypropylene material with low-floating-fiber surface and preparation method thereof |
| CN112048124B (en) * | 2020-08-05 | 2023-02-03 | 上海金发科技发展有限公司 | Glass fiber reinforced polypropylene material with low-floating-fiber surface and preparation method thereof |
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Application publication date: 20160406 |