CN102558666A - Ceramic fiber reinforced polypropylene complex and preparation method thereof - Google Patents
Ceramic fiber reinforced polypropylene complex and preparation method thereof Download PDFInfo
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- CN102558666A CN102558666A CN2010106083175A CN201010608317A CN102558666A CN 102558666 A CN102558666 A CN 102558666A CN 2010106083175 A CN2010106083175 A CN 2010106083175A CN 201010608317 A CN201010608317 A CN 201010608317A CN 102558666 A CN102558666 A CN 102558666A
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Abstract
The invention aims to disclose a ceramic fiber reinforced polypropylene complex and a preparation method thereof. The complex comprises the following components in part by weight: 60 to 75 parts of polypropylene resin, 15 to 30 parts of ceramic fiber, and 5 to 10 parts of processing aid. The complex has good physical and mechanical properties, and also has the characteristics of high heat resistance, high surface hardness, high rigidity and the like. The complex can meet the using requirements of shells and internal structural parts of electrical appliances. The reinforced polypropylene complex containing the ceramic fiber is produced by adopting double-screw extrusion equipment, and the method has the advantages of simple flow, continuity, high production efficiency and stable product quality.
Description
Technical field
The present invention relates to a kind of ceramic fiber RPP mixture and preparation method thereof.Particularly interpolation has good thermostability and chemicalstability in acrylic resin, low heat conductivity, and non-corrosive ceramic fiber is realized enhancing, heat-stable effect to Vestolen PP 7052.
Background technology
Ceramic fiber is a kind of fibrous light refractory materials that integrates conventional insulation material, refractory materials premium properties, and its diameter is generally 2 μ m～5 μ m, and mostly length is 30mm～250mm, and it is slick cylindrical that fiber surface is, and xsect is normally circular.Its constructional feature is void content high (generally greater than 90%), and air vent aperture and specific surface area are big.
Because the air in the pore of ceramic fiber has good heat-blocking action, thereby the size of air vent aperture and the character (ventilate or the hole of holding one's breath) of pore have decisive influence to its heat conductivility in the fiber.In fact; The internal organizational structure of ceramic fiber is a kind of mixed structure of being made up of solid-state fiber and air, and its microstructure characteristics all are that form with external phase exists in solid phase and gas phase, therefore; In this structure; Solid matter exists with filamentous form, and constitutes the external phase skeleton, gas phase then continued presence among the skeleton gap of filamentary material.Have this structure just because of ceramic fiber, make that its void content is higher, air vent aperture and specific surface area be bigger, thereby make ceramic fiber have good heat-proof quality and smaller volume density.Be used for industry insulation, sealing, protective material, electric heating device insulation, lagging material, the insulation of plant and instrument, electrical heating element and heat insulation material, automobile industry lagging material etc. more.
The liquid crystal polyester dipping ceramic fiber and the refinforced cement based composites that is used to build of printed substrate also appear being used in recent years.Do not see that ceramic fiber is used for the report of acrylic plastering modification.
Characteristics such as Vestolen PP 7052 (PP) is inexpensive because of its high comprehensive performance, wide material sources, light weight, easy-formation processing become one of most important general-purpose plastics, also are the fastest plastics varieties of application development in recent years.PP is the lightest general-purpose plastics, density 0.90g/cm
3Its outstanding advantage is the characteristic with anti-boiling in water, and is corrosion-resistant, and intensity, rigidity and the transparency are all good than Vilaterm, and shortcoming is that low-temperature impact resistance is poor, is prone to wear out, but can improves through modification and interpolation auxiliary agent respectively.Also need further to improve the thermotolerance of PP, just can widen its Application Areas.Commonly Vestolen PP 7052 is carried out enhancing modified use spun glass or natural fiber; Do not appear in the newspapers introduce suitable ceramic fiber as function modified component improving the intensity of polypropylene composite, in existing heat resistance modified research, do not occur ceramic fiber RPP mixture is made the report that thermotolerance is optimized.
Summary of the invention
The present invention seeks to disclose a kind of ceramic fiber RPP mixture and preparation method thereof,, satisfy the needs of association area development to overcome the above-mentioned defective that prior art exists.
The object of the invention can be realized through following technical scheme:
A kind of ceramic fiber RPP mixture, by weight percentage, its component and content are:
60～75 parts of acrylic resins;
15～30 parts of ceramic fibers;
Processing aid 5-10 part.
Described acrylic resin is meant homopolymerization PP, comprises common homopolymerization PP (HPP) and high crystallization PP (HJPP).Homopolymerization PP melting index (MI) is 8-15.
Described ceramic fiber preferably adopts the ceramic fiber of handling through composite coupler.
Described composite coupler parts by weight consist of: phosphate coupling agent 20-40 part, silane coupling agent 35-55 part, epoxy resin 5-15 part, glycidyl ester 15-35 part.
In the compound couplant, described phosphate coupling agent is a chelating type tetra-sodium titanate coupling agent, and can adopt the U.S. Kenrich company trade mark is the product of KR-238S.
Described silane coupling agent is a vinyltriethoxysilane, and can adopt the domestic Qingdao big chemical industry ltd in the sea trade mark is the product of A-151.
It is the product of R-140 that described epoxy resin can adopt the Mitsui chemistry trade mark.
Described glycidyl ester is isocyanuric acid three-glycidyl ester (TGIC), and domestic a plurality of producers are all on sale.
Described composite coupler consumption is for being 0.5～2% based on ceramic fiber weight.
The method that described composite coupler is handled ceramic fiber is following: earlier treatment agents such as phosphate coupling agent, silane coupling agent, epoxy resin, glycidyl ester are mixed and are positioned in the treatment trough by top proportioning, the ceramic fiber after wire drawing is handled is handled back (flooding 5～10 seconds) through the composite treating agent in the treatment trough and is promptly got the ceramic fiber that required modification is handled.
Preferred Luanping, Hebei Ao Tesiding Industrial Co., Ltd, specification is the ceramic fiber of high temperature (HT) type, 2～4 microns of Fibre diameters.Ceramic fiber after the processing can play good enhancement to material, makes material have high-modulus and rigidity, gives good infiltration, the coating of ceramic fiber and resin, makes that the ceramic fiber height is heat-resisting, fire-resistance property is able to play a role in resin system.
Described processing aid is selected from one or more mixtures in low molecule ester class, metallic soap class, Triple Pressed Stearic Acid complex ester class, the amides etc.; Specifically comprise solid paraffin, whiteruss, low molecular polyethylene, CaSt, Zinic stearas, erucicamide, methylene bis stearic amide and N; N-ethylene bis stearic acid amide (EBS) etc.; It mainly acts on is in processing and moulding process, to improve the dispersiveness that adds each component, reduces harmful friction, thereby improves processing characteristics.
Prepare the method for ceramic fiber RPP mixture, comprise the steps:
1) with PP resin and processing aid abundant mixing in high speed mixer in advance;
2) above-mentioned miscellany being added length-to-diameter ratio is that 36: 1～40: 1, extrusion temperature are that 200-240 ℃, rotating speed are in the strong shearing twin screw extruder of 350-450rpm; Evenly add ceramic fiber through the side direction spout; Melt extrude, obtain the finished product after tie rod, cooling, pelletizing, the drying.
Product of the present invention had both had good physical and mechanical property, had characteristics such as height is heat-resisting, high surface hardness, high rigidity simultaneously again.Can satisfy the request for utilization of electric appliance casing, inner structural members based article.The RPP mixture that contains ceramic fiber of the present invention adopts the twin screw extrusion equipment, have flow process simple, continuously, the advantage of high, the constant product quality of production efficiency.
Embodiment
Further set forth technical characterstic of the present invention below in conjunction with specific embodiment.
Testing method standard such as table 1 that the present invention adopts:
Table 1
| Physicals | Testing standard | Unit |
| Density | ISO?1183A | g/cm 3 |
| Melting index | ISO?1133 | g/10min |
| Tensile strength | ISO527/2 | MPa |
| Flexural strength | ISO178 | MPa |
| Notched Izod impact strength | ISO180 | KJ/m 2 |
| Heat-drawn wire | ISO?75-1 | ℃ |
The PP resin that adopts in the present embodiment is that MI is HPP and the HJPP of 8-12; Ceramic fiber is the ceramic fiber of high temperature (HT) type of Luanping, Hebei Ao Tesiding Industrial Co., Ltd production, 2～4 microns of Fibre diameters; Processing aid is EBS.
The preparation process of material is described below: PP resin, processing aid EBS etc. are even in high-speed mixer and mixing; Feed length-to-diameter ratio again and be 36: 1, extrusion temperature and be 220 ℃, rotating speed and be in the twin screw extruder of strong shear screw element distributed combination of 400rpm; The side direction spout evenly adds ceramic fiber; Melt extrude granulation, finally obtain this product.
Table 2: the prescription of embodiment 1-3 and test result thereof
| Component % (weight) | Embodiment 1 | Embodiment 2 | Embodiment 3 |
| HPP | 75 | 60 | |
| HJPP | 70 | ||
| Ceramic fiber | 20 | 25 | 20 |
| Processing aid | 5 | 15 | 10 |
| Physicals | |||
| Density | 1.03 | 1.05 | 1.03 |
| Melting index | 13 | 10 | 12 |
| Tensile strength | 45 | 54 | 58 |
| Flexural strength | 51 | 55 | 64 |
| Notched Izod impact strength | 7 | 8 | 10.5 |
| Heat-drawn wire | 118 | 120 | 120 |
Can find out from above-mentioned test result, in acrylic resin, add ceramic fiber, both have good physical and mechanical property, have characteristics such as height is heat-resisting, high surface hardness, high rigidity simultaneously again.Can satisfy the request for utilization of electric appliance casing, inner structural members based article.
Claims (13)
1. ceramic fiber RPP mixture, it is characterized in that: by weight percentage, its component and content are:
60～75 parts of acrylic resins;
15～30 parts of ceramic fibers;
Processing aid 5-10 part.
2. ceramic fiber RPP mixture according to claim 1 is characterized in that: described acrylic resin is that melting index is the homopolymerization PP of 8-15, comprises common homopolymerization PP and high crystallization PP.
3. ceramic fiber RPP mixture according to claim 1 is characterized in that: described ceramic fiber is for adopting the ceramic fiber of handling through composite coupler.
4. ceramic fiber RPP mixture according to claim 3; It is characterized in that: count by weight, described composite coupler component and content are: phosphate coupling agent 20-40 part, silane coupling agent 35-55 part; Epoxy resin 5-15 part, glycidyl ester 15-35 part.
5. ceramic fiber RPP mixture according to claim 4 is characterized in that: described phosphate coupling agent is a chelating type tetra-sodium titanate coupling agent.
6. ceramic fiber RPP mixture according to claim 4 is characterized in that: described silane coupling agent is a vinyltriethoxysilane.
7. ceramic fiber RPP mixture according to claim 4 is characterized in that: glycidyl ester is an isocyanuric acid three-glycidyl ester.
8. ceramic fiber RPP mixture according to claim 3 is characterized in that: described composite coupler consumption is for being 0.5～2% based on ceramic fiber weight.
9. ceramic fiber RPP mixture according to claim 3; It is characterized in that: the method that described composite coupler is handled ceramic fiber is following: mix and be positioned in treatment trough by proportioning treatment agents such as phosphate coupling agent, silane coupling agent, epoxy resin, glycidyl ester earlier; Ceramic fiber after wire drawing is handled flooded 5～10 seconds through the composite treating agent in the treatment trough, promptly got the ceramic fiber that required modification is handled.
10. ceramic fiber RPP mixture according to claim 9 is characterized in that: the diameter of said ceramic fiber is 2～4 microns.
11. ceramic fiber RPP mixture according to claim 1 is characterized in that: described processing aid is selected from one or more mixtures in low molecule ester class, metallic soap class, Triple Pressed Stearic Acid complex ester class, the amides etc.
12. ceramic fiber RPP mixture according to claim 11; It is characterized in that: described processing aid is: solid paraffin, whiteruss, low molecular polyethylene, CaSt, Zinic stearas, erucicamide, methylene bis stearic amide and N, one or more mixtures in the N-ethylene bis stearic acid amide (EBS).
13. a method for preparing the described ceramic fiber RPP of claim 1 mixture is characterized in that: comprise the steps:
1) with PP resin and processing aid abundant mixing in high speed mixer in advance;
2) above-mentioned miscellany being added length-to-diameter ratio is that 36: 1～40: 1, extrusion temperature are that 200-240 ℃, rotating speed are in the strong shearing twin screw extruder of 350-450rpm; Evenly add ceramic fiber through the side direction spout; Melt extrude, obtain the finished product after tie rod, cooling, pelletizing, the drying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2010106083175A CN102558666A (en) | 2010-12-28 | 2010-12-28 | Ceramic fiber reinforced polypropylene complex and preparation method thereof |
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| CN2010106083175A CN102558666A (en) | 2010-12-28 | 2010-12-28 | Ceramic fiber reinforced polypropylene complex and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102815958A (en) * | 2012-08-28 | 2012-12-12 | 湖北三江航天红阳机电有限公司 | Preparation method of ceramizable resin matrix composite material |
| CN106747581A (en) * | 2016-12-16 | 2017-05-31 | 侯风光 | A kind of autoclave aerated concrete building block for the hard polypropylene fibre that adulterates and preparation method thereof |
| US11364666B2 (en) | 2018-10-09 | 2022-06-21 | Shpp Global Technologies B.V. | Thermoplastic compositions having high stiffness and methods of making them |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0267326A (en) * | 1988-09-02 | 1990-03-07 | Asahi Chem Ind Co Ltd | Fiber-reinforced thermoplastic resin composition with excellent surface flatness |
| CN101165093A (en) * | 2006-10-16 | 2008-04-23 | 上海金发科技发展有限公司 | High hydrolysis resistance anti-flaming enhanced polybutylene terephthalate composition and preparation method thereof |
| CN101525531A (en) * | 2008-03-07 | 2009-09-09 | 钟兴业 | High molecular compound heat conducting material |
| CN102108149A (en) * | 2009-12-28 | 2011-06-29 | 崔贵府 | General-purpose thermoplastic plastic compound containing ceramic fiber and preparation method thereof |
-
2010
- 2010-12-28 CN CN2010106083175A patent/CN102558666A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0267326A (en) * | 1988-09-02 | 1990-03-07 | Asahi Chem Ind Co Ltd | Fiber-reinforced thermoplastic resin composition with excellent surface flatness |
| CN101165093A (en) * | 2006-10-16 | 2008-04-23 | 上海金发科技发展有限公司 | High hydrolysis resistance anti-flaming enhanced polybutylene terephthalate composition and preparation method thereof |
| CN101525531A (en) * | 2008-03-07 | 2009-09-09 | 钟兴业 | High molecular compound heat conducting material |
| CN102108149A (en) * | 2009-12-28 | 2011-06-29 | 崔贵府 | General-purpose thermoplastic plastic compound containing ceramic fiber and preparation method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102815958A (en) * | 2012-08-28 | 2012-12-12 | 湖北三江航天红阳机电有限公司 | Preparation method of ceramizable resin matrix composite material |
| CN102815958B (en) * | 2012-08-28 | 2013-11-06 | 湖北三江航天红阳机电有限公司 | Preparation method of ceramizable resin matrix composite material |
| CN106747581A (en) * | 2016-12-16 | 2017-05-31 | 侯风光 | A kind of autoclave aerated concrete building block for the hard polypropylene fibre that adulterates and preparation method thereof |
| US11364666B2 (en) | 2018-10-09 | 2022-06-21 | Shpp Global Technologies B.V. | Thermoplastic compositions having high stiffness and methods of making them |
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Application publication date: 20120711 |