CN103819861B - Low smell glass fiber reinforced styrene-maleic anhydride matrix material and preparation method thereof - Google Patents
Low smell glass fiber reinforced styrene-maleic anhydride matrix material and preparation method thereof Download PDFInfo
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- CN103819861B CN103819861B CN201210462038.1A CN201210462038A CN103819861B CN 103819861 B CN103819861 B CN 103819861B CN 201210462038 A CN201210462038 A CN 201210462038A CN 103819861 B CN103819861 B CN 103819861B
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Abstract
The invention discloses a kind of low smell glass fiber reinforced styrene-maleic anhydride matrix material and preparation method thereof, this matrix material is made up of following each component by total weight percent, 46.0 ~ 79.5% styrene-maleic anhydride copolymers, 0.4 ~ 2.0% thermo-stabilizer, 0.1 ~ 2.0% processing aid and 20 ~ 50% short glass fibers; The wherein atactic styrene-maleic anhydride copolymer of styrene-maleic anhydride copolymer to be maleic anhydride content be 5 ~ 25mol%; Short glass fiber is the special alkali-free short glass fiber of styrene-maleic anhydride copolymer.This matrix material has high rigidity, low warpage, height is heat-resisting, high-dimensional stability, ageing resistance excellent and low smell, meet the service requirements of auto sunroof framework, its tensile strength>=90MPa, tensile modulus>=5500MPa, notched Izod impact strength>=7KJ/m after testing
2, heat-drawn wire (1.80Mpa)>=130 DEG C, thermo-oxidative ageing (120 DEG C, 500hr) back draft strength retention>=95%, oder levels (80 DEG C, 2hr)≤3.0 grades.<!--1-->
Description
Technical field
The present invention relates to a kind of low smell glass fibre reinforced composite material, particularly relate to a kind of low smell glass fiber reinforced styrene-maleic anhydride matrix material and preparation method thereof, be applicable to vehicle dormer window material, belong to polymer composite and machine-shaping field thereof.
Background technology
Along with the development of automotive industry, glass fiber reinforced styrene-copolymer-maleic anhydride (SMA) matrix material is widely used due to the rigidity of its excellence, low warpage, thermotolerance, dimensional stability, low warpage, high workability and ageing resistance in automobile interior functional part.Current auto sunroof framework mainly adopts short glass fiber to strengthen polybutylene terephthalate (PBT) and long glass fiber-reinforced polypropylene, wherein short glass fiber enhancing PBT buckling deformation is large, and long wave fiber reinforced polypropylene smell is too large, be difficult to meet the development of vehicle dormer window to the requirement of the further upgrading of material.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the invention provides a kind of low smell glass fiber reinforced styrene-maleic anhydride matrix material and preparation method thereof, this matrix material overcomes short glass fiber and strengthens the defect that PBT buckling deformation is large, long glass fiber-reinforced polypropylene smell is large, has successfully prepared one for the special low smell glass fiber reinforced styrene-maleic anhydride mixture of vehicle dormer window.
The present invention in order to the technical scheme solving its technical problem and adopt is:
A kind of low smell glass fiber reinforced styrene-maleic anhydride matrix material, is made up of following each component by total weight percent:
The wherein atactic styrene-maleic anhydride copolymer of styrene-maleic anhydride copolymer to be maleic anhydride content be 5 ~ 25mol%; Described short glass fiber is the special alkali-free short glass fiber of styrene-maleic anhydride copolymer.
Its further technical scheme is: described thermo-stabilizer is at least one in phenols, the mixture class of acryl functional group and monothioester, phosphorous acid esters, half Hinered phenols, amine and calixarene, and it act as the degraded suppressing the course of processing to produce.
Described processing aid is at least one in low molecule ester class, metal soap, stearic acid complex ester class and amides.
Present invention also offers a kind of preparation method of low smell glass fiber reinforced styrene-maleic anhydride matrix material, be melting mixing dispersion in the twin screw extruder of 40:1 in length-to-diameter ratio by 46.0 ~ 79.5wt.% styrene-maleic anhydride copolymer, 0.4 ~ 2.0wt.% thermo-stabilizer, 0.1 ~ 2.0wt.% processing aid, and 20 ~ 50wt.% short glass fiber is added twin screw extruder by weight-loss metering scale from side feeding, forcing machine each section of temperature is arranged on 230-265 DEG C, extruding pelletization.
Advantageous Effects of the present invention is: the present invention adopts short glass fiber enhancing SMA injection moulding to prepare auto sunroof framework, overcome short glass fiber and strengthen the defect that PBT buckling deformation is large, long glass fiber-reinforced polypropylene smell is large, prepare a kind of low smell glass fiber reinforced styrene-maleic anhydride matrix material, this matrix material has high rigidity, low warpage, height is heat-resisting, high-dimensional stability, ageing resistance excellent and low smell, meets the service requirements of auto sunroof framework.Its tensile strength>=90MPa, tensile modulus>=5500MPa, notched Izod impact strength>=7KJ/m after testing
2, heat-drawn wire (1.80Mpa)>=130 DEG C, thermo-oxidative ageing (120 DEG C, 500hr) back draft strength retention>=95%, oder levels (80 DEG C, 2hr)≤3.0 grades.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in further detail.
Embodiment one:
Be melting mixing dispersion in the twin screw extruder of 40:1 in length-to-diameter ratio by 79.5 kilograms of SMAM14,0.2 kilogram of phenolic thermostabilizers, 1010,0.2 kilogram of phosphite antioxidant 627A, 0.1 kilogram of processing aid EBS, 20 kilograms of Chongqing glass short glass fiber 304A add twin screw extruder by weight-loss metering scale from side feeding, forcing machine each section of temperature is arranged on 230-265 DEG C, extruding pelletization, finally obtain product A, its performance is as shown in table 1.
The performance of table 1 composite A
| Performance | Unit | Testing standard | Test result |
| Glass fiber content (750 DEG C, 30min) | % | ISO 3451/1 | 20 |
| HDT（1.80MPa） | ℃ | ISO75/1-93 | 134 |
| Tensile strength | MPa | ISO527/2-93 | 95 |
| Tensile modulus | MPa | ISO527/2-93 | 6500 |
| Notched Izod impact strength | KJ/m 2 | ISO179/2-93 | 7 |
| Stretching strength retentivity (120 DEG C, 500hr) | % | ISO527/2-93 | 96 |
| Oder levels (80 DEG C, 2hr) | -- | PV 3900 | 3.0 |
Embodiment two:
Be melting mixing dispersion in the twin screw extruder of 40:1 in length-to-diameter ratio by 68.5 kilograms of SMAM25,0.5 kilogram of phenolic thermostabilizers, 1010,0.5 kilogram of phosphite antioxidant, 168,0.5 kilogram of processing aid EB-FF, 30 kilograms of Chongqing glass short glass fiber 304A add twin screw extruder by weight-loss metering scale from side feeding, forcing machine each section of temperature is arranged on 230-265 DEG C, extruding pelletization, finally obtain product B, its performance is as shown in table 2:
The performance of table 2 matrix material B
| Performance | Unit | Testing standard | Test result |
| Glass fiber content (750 DEG C, 30min) | % | ISO 3451/1 | 30 |
| HDT（1.80MPa） | ℃ | ISO75/1-93 | 136 |
| Tensile strength | MPa | ISO527/2-93 | 115 |
| Tensile modulus | MPa | ISO527/2-93 | 8500 |
| Notched Izod impact strength | KJ/m 2 | ISO179/2-93 | 7.5 |
| Stretching strength retentivity (120 DEG C, 500hr) | % | ISO527/2-93 | 97 |
| Oder levels (80 DEG C, 2hr) | -- | PV 3900 | 3.0 |
Embodiment three:
Be melting mixing dispersion in the twin screw extruder of 40:1 in length-to-diameter ratio by 57.5 kilograms of SMA214,0.7 kilogram of phenolic thermostabilizers, 1010,0.8 kilogram of monothioester oxidation inhibitor 412S, 1 kilogram of processing aid EBS, 40 kilograms of PPG short glass fiber HP3540 add twin screw extruder by weight-loss metering scale from side feeding, forcing machine each section of temperature is arranged on 230-265 DEG C, extruding pelletization, finally obtain products C, its performance is as shown in table 3.
The performance of table 3 matrix material C
| Performance | Unit | Testing standard | Test result |
| Glass fiber content (750 DEG C, 30min) | % | ISO 3451/1 | 40 |
| HDT（1.80MPa） | ℃ | ISO75/1-93 | 138 |
| Tensile strength | MPa | ISO527/2-93 | 135 |
| Tensile modulus | MPa | ISO527/2-93 | 10000 |
| Notched Izod impact strength | KJ/m 2 | ISO179/2-93 | 8 |
| Stretching strength retentivity (120 DEG C, 500hr) | % | ISO527/2-93 | 98 |
| Oder levels (80 DEG C, 2hr) | -- | PV 3900 | 3.0 |
Embodiment four:
Be melting mixing dispersion in the twin screw extruder of 40:1 in length-to-diameter ratio by 56.5 kilograms of SMAM14,1 kilogram of phenolic thermostabilizers, 1010,1 kilogram of phosphite antioxidant 627A, 1.5 kilograms of processing aid EB-FF, 40 kilograms of PPG short glass fiber HP3786 add twin screw extruder by weight-loss metering scale from side feeding, forcing machine each section of temperature is arranged on 230-265 DEG C, extruding pelletization, finally obtain product D, its performance is as shown in table 4.
The performance of table 4 matrix material D
| Performance | Unit | Testing standard | Test result |
| Glass fiber content (750 DEG C, 30min) | % | ISO 3451/1 | 40 |
| HDT（1.80MPa） | ℃ | ISO75/1-93 | 140 |
| Tensile strength | MPa | ISO527/2-93 | 155 |
| Tensile modulus | MPa | ISO527/2-93 | 12500 |
| Notched Izod impact strength | KJ/m 2 | ISO179/2-93 | 9 |
| Stretching strength retentivity (120 DEG C, 500hr) | % | ISO527/2-93 | 99 |
| Oder levels (80 DEG C, 2hr) | -- | PV 3900 | 3.0 |
Embodiment five:
Be melting mixing dispersion in the twin screw extruder of 40:1 in length-to-diameter ratio by 46.0 kilograms of SMA214,1.0 kilograms of phenolic thermostabilizers, 1010,1.0 kilograms of monothioester oxidation inhibitor 412S, 2.0 kilograms of processing aid EBS, 50.0 kilograms of PPG short glass fiber HP3540 add twin screw extruder by weight-loss metering scale from side feeding, forcing machine each section of temperature is arranged on 230-265 DEG C, extruding pelletization, finally obtain product E, its performance is as shown in table 5.
Table 5 matrix material E performance
| Performance | Unit | Testing standard | Test result |
| Glass fiber content (750 DEG C, 30min) | % | ISO 3451/1 | 50 |
| HDT（1.80MPa） | ℃ | ISO75/1-93 | 142 |
| Tensile strength | MPa | ISO527/2-93 | 160 |
| Tensile modulus | MPa | ISO527/2-93 | 13500 |
| Notched Izod impact strength | KJ/m 2 | ISO179/2-93 | 9.5 |
| Stretching strength retentivity (120 DEG C, 500hr) | % | ISO527/2-93 | 99.5 |
| Oder levels (80 DEG C, 2hr) | -- | PV 3900 | 3.0 |
Above embodiment is only exemplary embodiment of the present invention, and be not used in restriction the present invention, protection scope of the present invention is defined by the claims.Those skilled in the art can in essence of the present invention and protection domain, and make various amendment or equivalent replacement to the present invention, this amendment or equivalent replacement also should be considered as dropping in protection scope of the present invention.
Claims (2)
1. low smell glass fiber reinforced styrene-maleic anhydride matrix material, is characterized in that: be made up of following each component by total weight percent and prepare gained according to following preparation method:
Be melting mixing dispersion in the twin screw extruder of 40:1 in length-to-diameter ratio by styrene-maleic anhydride copolymer, thermo-stabilizer, processing aid, and short glass fiber is added twin screw extruder by weight-loss metering scale from side feeding, forcing machine each section of temperature is arranged on 230-265 DEG C, extruding pelletization, obtains low smell glass fiber reinforced styrene-maleic anhydride matrix material;
The wherein atactic styrene-maleic anhydride copolymer of styrene-maleic anhydride copolymer to be maleic anhydride content be 5 ~ 25mol%; Described short glass fiber is the special alkali-free short glass fiber of styrene-maleic anhydride copolymer;
Described thermo-stabilizer is at least one in phenols, the mixture class of acryl functional group and monothioester, phosphorous acid esters, half Hinered phenols, amine and calixarene.
2. low smell glass fiber reinforced styrene-maleic anhydride matrix material according to claim 1, is characterized in that: described processing aid is at least one in low molecule ester class, metal soap, stearic acid complex ester class and amides.
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| CN103819861B true CN103819861B (en) | 2016-02-10 |
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| CN104072923B (en) * | 2014-06-18 | 2017-01-25 | 金发科技股份有限公司 | High-heat-resistant transparent reinforcing material as well as preparation method and application thereof |
| CN110564097B (en) * | 2019-08-14 | 2022-07-26 | 华合新材料科技股份有限公司 | Reinforced SMA composite material with low warpage and high dimensional stability for automobile structural member and preparation method thereof |
| CN112812485B (en) * | 2020-12-28 | 2022-10-21 | 金发科技股份有限公司 | SMA composite material and preparation method and application thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1834145A (en) * | 2005-03-18 | 2006-09-20 | 上海金发科技发展有限公司 | Polypropylene composite material for automobile bumper and prepn. thereof |
| CN101418099A (en) * | 2008-12-02 | 2009-04-29 | 上海金发科技发展有限公司 | Natural fiber reinforcement halogen-free flame retardant polypropylene composite material and preparation method thereof |
| CN101875735A (en) * | 2009-04-28 | 2010-11-03 | 上海金发科技发展有限公司 | Halogen-free flame-retardant cable sheath material and preparation process thereof |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1834145A (en) * | 2005-03-18 | 2006-09-20 | 上海金发科技发展有限公司 | Polypropylene composite material for automobile bumper and prepn. thereof |
| CN101418099A (en) * | 2008-12-02 | 2009-04-29 | 上海金发科技发展有限公司 | Natural fiber reinforcement halogen-free flame retardant polypropylene composite material and preparation method thereof |
| CN101875735A (en) * | 2009-04-28 | 2010-11-03 | 上海金发科技发展有限公司 | Halogen-free flame-retardant cable sheath material and preparation process thereof |
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