CN1810870A - Long glass fiber reinforced polypropylene material and its prepn - Google Patents
Long glass fiber reinforced polypropylene material and its prepn Download PDFInfo
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- CN1810870A CN1810870A CN 200610033859 CN200610033859A CN1810870A CN 1810870 A CN1810870 A CN 1810870A CN 200610033859 CN200610033859 CN 200610033859 CN 200610033859 A CN200610033859 A CN 200610033859A CN 1810870 A CN1810870 A CN 1810870A
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Abstract
The present invention discloses one kind of long glass fiber reinforced polypropylene material and its preparation process. The present invention prepares polypropylene composition modified with superhigh melt index unsaturated carboxylic acid or its anhydride in an extruder by using medium melt index polypropylene resin, and provides molten modified polypropylene melt directly to the dipping machine head to dip continuous glass fiber, so as to produce the long glass fiber reinforced polypropylene composition in the one-step process. The present invention produces long glass fiber reinforced polypropylene composition modified with superhigh melt index unsaturated carboxylic acid or its anhydride by using medium melt index polypropylene resin, rather than superhigh melt index polypropylene, and has simple technological process and lowered cost.
Description
Technical field
The present invention relates to polymeric material field, be specifically related to a kind of long glass fiber reinforced polypropylene material and preparation method thereof.
Background technology
Long glass fiber reinforced polypropylene material has high strength, high rigidity, high impact, hangs down advantages such as little, the anti-dynamic fatigue property of warpage creep is good, be widely used in structure component such as automobile, household electrical appliances because of its cost performance is very high, substituted metal, short glass fiber Reinforced Nylon etc.
Adopt the main problem of the pultrude process production long glass fiber reinforced polypropylene of melt impregnation to have two: 1, polypropylene is nonpolar macromole, being difficult to direct good interface with glass fibre is connected, need to introduce polar functional group, the method that commercial production is usually used is to add unsaturated carboxylic acid or its anhydride modified polypropylene, is connected with the interface of glass fibre to improve; 2, because melt polypropylene viscosity is big, be difficult for good impregnated glass fiber in the pultrude process, the molten polypropylene (＞70g/10min, 230 ℃ of 2.16kg) that refers to of superelevation is adopted in the commercial production of long glass fiber reinforced polypropylene material usually, makes the dipping effect that helps improving glass fibre.
There has been disclosed preparation continuous fiber to strengthen the polypropylene matrix material.It is the modified polypropylene resin dipping continuous glass fibre bundle of 70～300g/10min (230 ℃ of 2.16kg) that patent CN1058026C adopts molten the finger, obtains the long glass fiber reinforced polypropylene master batch.The defective of this method is to prepare special carboxyl acid modified acrylic resin in advance, and molten the finger be the modified polypropylene resin of 70～300g/10min (230 ℃ of 2.16kg) when high-temperature fusion is with impregnated glass fiber once more in forcing machine, product colour control difficulty.Patent CN1068358C adopts organosilicone compounds, unsaturated carboxylic acid or its anhydride grafting modified polypropylene, or having the graft modification polypropylene and the mixture of graft modification polypropylene not to flood continuous glass fibre prepares long glass fiber-reinforced polypropylene.As the mixture that adopts graft modification polypropylene and graft modification polypropylene not is still to need to prepare separately in advance graft modification polypropylene on the one hand as the defective of impregnated web, graft modification polypropylene need not selected the molten acrylic resin that refers to of superelevation for use on the other hand, could satisfy the requirement of the good dipping of glass fibre.
Summary of the invention
The objective of the invention is to overcome the problem that above-mentioned existing long glass fiber reinforced polypropylene material exists, provide that a kind of cost is low, the long glass fiber reinforced polypropylene material of various excellent performances.
Another object of the present invention provides the preparation method of above-mentioned long glass fiber reinforced polypropylene material.
A kind of long glass fiber reinforced polypropylene material comprises the molten polypropylene that refers to of long glass fibres and superelevation, and the molten polypropylene that refers to of described superelevation is molten unsaturated carboxylic acid or its anhydride modified polypropylene of referring to of superelevation; Molten unsaturated carboxylic acid or its anhydride modified polypropylene of referring to of described superelevation is made up of following component and parts by weight: polypropylene 85～98, unsaturated carboxylic acid or its acid anhydrides 0.2～1.5, organo-peroxide 0.05～0.5, other auxiliary agent 0.1～2, polyolefin elastomer 0～15.
Above-mentioned polypropylene melts finger polypropylene (10-20g/10min, 230 ℃ of 2.16kg) in being.
In above-mentioned molten refer to polypropylene be in the molten homo-polypropylene that refers to, Co-polypropylene a kind of or their mixture.
Above-mentioned unsaturated carboxylic acid or its acid anhydrides are one or more in toxilic acid, vinylformic acid, methylene-succinic acid, maleic anhydride, the glycidyl acrylate, but are not limited only to these unsaturated carboxylic acids or its acid anhydrides;
Above-mentioned organo-peroxide is dicumyl peroxide, benzoyl peroxide, ditertiary butyl peroxide, 2,5-dimethyl-2, the mixture of one or more in two (benzoyl peroxide) hexanes of 5-.
Above-mentioned oxidation inhibitor is one or more the mixture among antioxidant 1010, oxidation inhibitor 168, oxidation inhibitor 1790, oxidation inhibitor 1098, oxidation inhibitor 412S, oxidation inhibitor 445, oxidation inhibitor DLTDP, the oxidation inhibitor STDP.
Molten unsaturated carboxylic acid or its anhydride modified polypropylene of referring to of above-mentioned superelevation also contains other auxiliary agents, and described other auxiliary agents are one or more the mixture in lubricant, the agent of anti-copper evil, the antimycotic agent.Can add as requested or not add.
The preparation method of above-mentioned long glass fiber reinforced polypropylene material comprises the steps:
(1) molten unsaturated carboxylic acid or its anhydride modified polypropylene of referring to of preparation superelevation: use the forcing machine that three side direction spouts are arranged, add most of polypropylene, polyolefin elastomer, other additive except that oxidation inhibitor at main spout, add the organo-peroxide that is dissolved in the solvent at first side direction spout, be dissolved in unsaturated carboxylic acid or its acid anhydrides in the solvent second side direction spout adding, add oxidation inhibitor and small portion polypropylene again at the 3rd side direction spout;
(2) preparation long glass fiber reinforced polypropylene material: molten unsaturated carboxylic acid or its anhydride modified melt polypropylene dipping long glass fibres of referring to of fusion superelevation prepared long glass fiber reinforced polypropylene material.
The forcing machine that three side direction spouts are arranged is used in the preparation of mixture of the present invention, adds each component such as polypropylene, unsaturated carboxylic acid or its acid anhydrides, organo-peroxide, other auxiliary agent, polyolefin elastomer from main spout, the first side spout (from main spout order meter), the second side spout, the 3rd side spout.Wherein most of polypropylene, polyolefin elastomer, other additive except that oxidation inhibitor add from main spout, be dissolved in organo-peroxide in the solvent from pumping at first side direction spout, the unsaturated carboxylic acid or its acid anhydrides that are dissolved in the solvent pump into from second side direction spout, add oxidation inhibitor and small portion polypropylene again at the 3rd side direction spout.Simultaneously, adjusting combination of forcing machine respective threaded rod and temperature sets to guarantee technology stability.
Mixture of the present invention enters the continuous glass fibre of dipping head dipping traction after the tank cooling and dicing becomes length is the long glass fiber reinforced polypropylene material particle of 3～30mm from forcing machine.
Compared with prior art, the present invention has following beneficial effect: the molten acrylic resin that refers to prepared molten unsaturated carboxylic acid or its anhydride modified polypropylene composite of referring to of superelevation during the present invention adopted in forcing machine, flood continuous glass fibre directly for dipping head supply melt modification melt polypropylene, single stage method is produced long glass fiber reinforced polypropylene (PP) material.Advantage of the present invention: the molten polypropylene that refers to was made raw material during 1, the employing commercialization trade mark enriched, and cost is lower than the molten finger of superelevation polypropylene; 2, preparation is used for molten unsaturated carboxylic acid or its anhydride modified polypropylene composite of referring to of superelevation that single stage method is produced long glass fiber reinforced polypropylene (PP), do not need to produce separately in advance or buy molten unsaturated carboxylic acid or its anhydride grafting modified polypropylene of referring to of superelevation, simplify technology, reduce cost.
Embodiment
Embodiment 1
Molten finger with 95% is that the homo-polypropylene of 15g/10min (230 ℃ of 2.16kg) adds forcing machine from main spout, pump into 0.1% dicumyl peroxide that is dissolved in the acetone from the first side direction spout, pump into 0.5% maleic anhydride that is dissolved in the acetone from the second side direction spout, adding 0.2% antioxidant 1010,0.2% oxidation inhibitor 168 and 4% molten finger from the 3rd side direction spout is the homo-polypropylene mixture of 15g/10min (230 ℃ of 2.16kg), through the mixture of forcing machine frit reaction and continuous glass fibre by flooding the pelletizing of head postcooling.This long glass fiber-reinforced polypropylene particulate material preparation standard mechanical test sample.
Extract modified polypropene mixture bath sample from the position that enters the melt temperature meter of dipping before the head, refer to and percentage of grafting as test is molten.
Embodiment 2
With the molten finger among the embodiment 1 is that the homo-polypropylene equivalent of 15g/10min (230 ℃ of 2.16kg) replaces to the molten Co-polypropylene of 15g/10min (230 ℃ of 2.16kg) that refers to be, adopt same procedure to prepare the standard mechanics test sample of long glass fiber-reinforced polypropylene particulate material and this particulate material, adopt same procedure to extract modified polypropene mixture bath sample and test to melt to refer to and percentage of grafting.
Embodiment 3
The 95% molten finger that adds from main spout among the embodiment 1 is replaced to the 97% molten mixture that refers to for the homo-polypropylene of 15g/10min (230 ℃ of 2.16kg) and 1% ethylene-octene copolymer (ethylene content is 30%) for the homo-polypropylene of 15g/10min (2.16kg230 ℃), pump into 0.12% dicumyl peroxide that is dissolved in the acetone from the first side direction spout, pump into 0.5% maleic anhydride that is dissolved in the acetone from the second side direction spout, oxidation inhibitor 1790 from the 3rd side direction spout adding 0.2%, 0.18% oxidation inhibitor 168 and 1% molten finger are the mixture of the homo-polypropylene of 15g/10min (230 ℃ of 2.16kg), adopt same procedure to prepare the standard mechanics test sample of long glass fiber-reinforced polypropylene particulate material and this particulate material, adopt same procedure to get modified polypropene melt sample and molten finger of test and percentage of grafting.
Comparative example 1
The 95% molten finger that adds from main spout among the embodiment 1 for replacing to 100% molten finger, the homo-polypropylene of 15g/10min (2.16kg230 ℃) is the previously prepared modified by maleic acid anhydride graft homo-polypropylene of 150g/10min (230 ℃ of 2.16kg), adopt same procedure to prepare the standard mechanics test sample of long glass fiber-reinforced polypropylene particulate material and this particulate material, adopt same procedure to get modified polypropene melt sample and molten finger of test and percentage of grafting.
Comparative example 2
95% molten finger the from main spout adding among the embodiment 1, for replacing to 80%, the homo-polypropylene of 15g/10min (2.16kg230 ℃) melted to refer to be that the Co-polypropylene of 90g/10min (230 ℃ of 2.16kg) and 20% melts the mixture that refers to for the modified by maleic acid anhydride graft homo-polypropylene of 300g/10min (230 ℃ of 2.16kg), adopt same procedure to prepare the standard mechanics test sample of long glass fiber-reinforced polypropylene particulate material and this particulate material, adopt same procedure to get modified polypropene melt sample and molten finger of test and percentage of grafting.
Table 1 has been listed the sample testing result of above-mentioned all embodiment and comparative example.
Table 1
| Testing method | Unit | Embodiment 1 | Embodiment 2 | Embodiment 3 | Comparative example 1 | Comparative example 2 | |
| The melt percentage of grafting | FRIT is quantitative | ％ | 0.13 | 0.16 | 0.15 | 0.21 | 0.14 |
| The molten finger | 2.16kg 230℃ | g/10min | 106 | 98 | 135 | 154 | 139 |
| Content of glass fiber | Calcination | ％ | 32 | 31 | 35 | 33 | 30 |
| Color | Range estimation | Good | Good | Good | Little Huang | Good | |
| Tensile strength | ASTM D638 | MPa | 117 | 90 | 128 | 106 | 92 |
| Notched Izod impact strength | ASTM D256 | J/m | 293 | 424 | 327 | 233 | 358 |
| Flexural strength | ASTM D790 | MPa | 162 | 133 | 175 | 154 | 137 |
| Modulus in flexure | ASTM D790 | MPa | 7329 | 5873 | 7644 | 7206 | 6120 |
Claims (8)
1, a kind of long glass fiber reinforced polypropylene material comprises the molten polypropylene that refers to of long glass fibres and superelevation, it is characterized in that the molten polypropylene that refers to of described superelevation is molten unsaturated carboxylic acid or its anhydride modified polypropylene of referring to of superelevation; Molten unsaturated carboxylic acid or its anhydride modified polypropylene of referring to of described superelevation contains following component and parts by weight: polypropylene 85～98, unsaturated carboxylic acid or its acid anhydrides 0.2～1.5, organo-peroxide 0.05～0.5, oxidation inhibitor 0.1～2, polyolefin elastomer 0～15.
2, long glass fiber reinforced polypropylene material according to claim 1 is characterized in that described polypropylene melts the finger polypropylene in being.
3, long glass fiber reinforced polypropylene material according to claim 2, it is characterized in that in described molten refer to polypropylene be in the molten homo-polypropylene that refers to, Co-polypropylene a kind of or their mixture.
4, long glass fiber reinforced polypropylene material according to claim 1 is characterized in that described unsaturated carboxylic acid is one or more a mixture of toxilic acid, vinylformic acid, methylene-succinic acid, maleic anhydride, glycidyl acrylate.
5, long glass fiber reinforced polypropylene material according to claim 1, it is characterized in that described organo-peroxide is dicumyl peroxide, benzoyl peroxide, ditertiary butyl peroxide, 2,5-dimethyl-2, the mixture of one or more in two (benzoyl peroxide) hexanes of 5-.
6, long glass fiber reinforced polypropylene material according to claim 1 is characterized in that described oxidation inhibitor is one or more the mixture among antioxidant 1010, oxidation inhibitor 168, oxidation inhibitor 1790, oxidation inhibitor 1098, oxidation inhibitor 412S, oxidation inhibitor 445, oxidation inhibitor DLTDP, the oxidation inhibitor STDP.
7, long glass fiber reinforced polypropylene material according to claim 1, it is characterized in that molten unsaturated carboxylic acid or its anhydride modified polypropylene of referring to of described superelevation also contains other auxiliary agents, described other auxiliary agents are one or more the mixture in lubricant, the agent of anti-copper evil, the antimycotic agent.
8, the preparation method of the described long glass fiber reinforced polypropylene material of a kind of claim 1 is characterized in that comprising the steps:
(1) molten unsaturated carboxylic acid or its anhydride modified polypropylene of referring to of preparation superelevation: use the forcing machine that three side direction spouts are arranged, add most of polypropylene, polyolefin elastomer at main spout, except other additive of oxidation inhibitor, add the organo-peroxide that is dissolved in the solvent at first side direction spout, be dissolved in unsaturated carboxylic acid or its acid anhydrides in the solvent second side direction spout adding, add oxidation inhibitor and small portion polypropylene again at the 3rd side direction spout;
(2) preparation long glass fiber reinforced polypropylene material: molten unsaturated carboxylic acid or its anhydride modified melt polypropylene dipping long glass fibres of referring to of fusion superelevation prepared long glass fiber reinforced polypropylene material.
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102257061A (en) * | 2008-12-25 | 2011-11-23 | 东丽株式会社 | Fiber-reinforced propylene resin composition |
| CN102516667A (en) * | 2011-12-19 | 2012-06-27 | 江苏金发科技新材料有限公司 | Halogen-free flame-retardant long glass fiber reinforced polypropylene material and preparation method thereof |
| CN102643478A (en) * | 2012-04-16 | 2012-08-22 | 上海金发科技发展有限公司 | Halogen-free flame-retarding long glass fiber reinforced polypropylene material and preparation method thereof |
| CN102863687A (en) * | 2012-09-28 | 2013-01-09 | 合肥杰事杰新材料股份有限公司 | Humic acid/polypropylene composition and preparation method thereof |
| CN103265761A (en) * | 2013-05-07 | 2013-08-28 | 金发科技股份有限公司 | Low fiber floating glass fiber reinforced polypropylene complex and preparation method thereof |
| CN103571060A (en) * | 2013-10-30 | 2014-02-12 | 苏州万隆汽车零部件股份有限公司 | Glass continuous fiber-reinforced polypropylene material and preparation method thereof |
| CN103694613A (en) * | 2013-12-19 | 2014-04-02 | 上海日之升新技术发展有限公司 | Low-fiber-floating glass-fiber-reinforced toughening polypropylene composite material and preparation method thereof |
| CN104419060A (en) * | 2013-08-29 | 2015-03-18 | 合肥杰事杰新材料股份有限公司 | Continuous organic fiber-filled polypropylene composite material and preparation method thereof |
| CN105418852A (en) * | 2015-12-29 | 2016-03-23 | 佳易容相容剂江苏有限公司 | Low-smell low-radiation glass fiber enhanced polypropylene composition and preparation method therefor |
| CN111393690A (en) * | 2019-11-25 | 2020-07-10 | 浙江工业大学 | Method for preparing high-strength high-toughness polypropylene/glass fiber composite material through one-step method |
| CN112339244A (en) * | 2020-09-07 | 2021-02-09 | 金旸（厦门）新材料科技有限公司 | Method for processing glass fiber reinforced polypropylene material with co-rotating double-screw extruder at low cost |
| CN112480528A (en) * | 2020-10-22 | 2021-03-12 | 中广核俊尔（上海）新材料有限公司 | Low-odor polypropylene material with ultra-high melt index and preparation method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH07119349B2 (en) * | 1987-11-04 | 1995-12-20 | 三井石油化学工業株式会社 | Glass fiber reinforced thermoplastic resin composition |
| MY123914A (en) * | 1997-01-17 | 2006-06-30 | Kisco Ltd | Glass fiber reinforced polypropylene composition and method for manufacturing the same |
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| CN102257061B (en) * | 2008-12-25 | 2014-04-30 | 东丽株式会社 | Fiber-reinforced propylene resin composition |
| CN102257061A (en) * | 2008-12-25 | 2011-11-23 | 东丽株式会社 | Fiber-reinforced propylene resin composition |
| US8530565B2 (en) | 2008-12-25 | 2013-09-10 | Mitsui Chemicals, Inc. | Fiber reinforced propylene resin composition |
| CN102516667A (en) * | 2011-12-19 | 2012-06-27 | 江苏金发科技新材料有限公司 | Halogen-free flame-retardant long glass fiber reinforced polypropylene material and preparation method thereof |
| CN102643478A (en) * | 2012-04-16 | 2012-08-22 | 上海金发科技发展有限公司 | Halogen-free flame-retarding long glass fiber reinforced polypropylene material and preparation method thereof |
| CN102863687A (en) * | 2012-09-28 | 2013-01-09 | 合肥杰事杰新材料股份有限公司 | Humic acid/polypropylene composition and preparation method thereof |
| CN103265761A (en) * | 2013-05-07 | 2013-08-28 | 金发科技股份有限公司 | Low fiber floating glass fiber reinforced polypropylene complex and preparation method thereof |
| CN104419060A (en) * | 2013-08-29 | 2015-03-18 | 合肥杰事杰新材料股份有限公司 | Continuous organic fiber-filled polypropylene composite material and preparation method thereof |
| CN104419060B (en) * | 2013-08-29 | 2017-09-05 | 合肥杰事杰新材料股份有限公司 | A kind of continuous organic fiber filling polypropylene composite material and preparation method thereof |
| CN103571060A (en) * | 2013-10-30 | 2014-02-12 | 苏州万隆汽车零部件股份有限公司 | Glass continuous fiber-reinforced polypropylene material and preparation method thereof |
| CN103694613A (en) * | 2013-12-19 | 2014-04-02 | 上海日之升新技术发展有限公司 | Low-fiber-floating glass-fiber-reinforced toughening polypropylene composite material and preparation method thereof |
| CN103694613B (en) * | 2013-12-19 | 2016-08-17 | 上海日之升新技术发展有限公司 | A kind of low floating fine fiberglass reinforced toughened polypropylene composite and preparation method thereof |
| CN105418852A (en) * | 2015-12-29 | 2016-03-23 | 佳易容相容剂江苏有限公司 | Low-smell low-radiation glass fiber enhanced polypropylene composition and preparation method therefor |
| CN111393690A (en) * | 2019-11-25 | 2020-07-10 | 浙江工业大学 | Method for preparing high-strength high-toughness polypropylene/glass fiber composite material through one-step method |
| CN112339244A (en) * | 2020-09-07 | 2021-02-09 | 金旸（厦门）新材料科技有限公司 | Method for processing glass fiber reinforced polypropylene material with co-rotating double-screw extruder at low cost |
| CN112480528A (en) * | 2020-10-22 | 2021-03-12 | 中广核俊尔（上海）新材料有限公司 | Low-odor polypropylene material with ultra-high melt index and preparation method thereof |
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| CN100463937C (en) | 2009-02-25 |
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