CN102585475A - High-transparent anti-wear anti-scraping PC (Poly Carbonate) material and preparation method thereof - Google Patents
High-transparent anti-wear anti-scraping PC (Poly Carbonate) material and preparation method thereof Download PDFInfo
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- CN102585475A CN102585475A CN201210003374XA CN201210003374A CN102585475A CN 102585475 A CN102585475 A CN 102585475A CN 201210003374X A CN201210003374X A CN 201210003374XA CN 201210003374 A CN201210003374 A CN 201210003374A CN 102585475 A CN102585475 A CN 102585475A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
- B29C48/875—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling for achieving a non-uniform temperature distribution, e.g. using barrels having both cooling and heating zones
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/9258—Velocity
- B29C2948/9259—Angular velocity
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92885—Screw or gear
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92895—Barrel or housing
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to the field of modification of macromolecular thermoplastic materials, in particular to a modified formula of a high-transparent anti-wear anti-scraping PC (Poly Carbonate) material and a preparation method thereof. The modified formula comprises the following substances in parts by weight: 90-98 parts of PC (Poly Carbonate), 1-5 parts of anti-scraping agent, 0.5-3 parts of lubricating agent and 0.5-2 parts of antioxygen. According to the modified PC formula, the surface hardness of a PC resin is improved on the basis of not changing the mechanical property and the transparent property of the PC resin too much, and the application range in the anti-wear anti-scraping engineering plastic field is expanded. The anti-wear anti-scraping PC material disclosed by the invention has excellent flowability and a simple preparation process.
Description
Technical field
The present invention relates to macromolecular thermoplastic material modification field, be specifically related to modified formula of a kind of high transparent wear-resisting scrape resistant PC material and preparation method thereof.
Background technology
PC is a polycarbonate, is unique transparent material in the five large-engineering plastics.It has heat-resisting, over-all propertieies such as anti-electricity.Simultaneously, also has shock resistance, dimensional stabilizing; Characteristics such as fire-retardant are widely used in the fields, particularly automotive industry such as glazing, automotive industry, electronic apparatus; It is (higher 250 times than common unorganic glass that the PC vehicle window has good shock resistance; Higher more than 30 times than standard polymethylmethacrylate glass board material), light weight, transparence, sound insulation property, thermal insulation are good; The PC front car light is handsome in appearance, shape is changeable, and its difficulty of processing also reduces than original traditional glass manufacturing greatly.But shortcomings such as hardness is low, wear-resisting, scraping and wiping resistance performance difference that the PC material but exists.Because common PC material has been difficult to satisfy industry requirement, developers can carry out modification to PC according to actual needs, make it adapt to different demands; The method that many researchs are adopted is a kind of transparent abrasion-resistant coating of preparation; Be coated on the polycarbonate substrate, for example the patent of BASF Coatings GmbH's application: have the polycarbonate of the scratch resistance coating of high-clarity, Its Preparation Method And Use; Application publication number: CN102216401A, but this method complex process; The investigator is arranged through waiting the wear-resisting scraping and wiping resistance performance that improves the PC material in the PC material, adding PMMA or SAN, its shortcoming is that the heavy addition of material such as PMMA has influenced the transparency of PC material.
Summary of the invention
The object of the present invention is to provide a kind of high transparent wear-resisting scrape resistant PC material; Through in the PC resin, adding materials such as wear-resisting scratch resistance liniment and lubricant, oxidation inhibitor PC is carried out modification; In the wear-resisting and scraping and wiping resistance performance that improves the PC material; Do not influence the transparency and the physical and mechanical properties of PC material, further enlarge the Application Areas of PC material.
For being implemented to above-mentioned purpose, a kind of high transparent wear-resisting scrape resistant PC material provided by the invention is made up of the following material that calculates by weight: (1) PC resin 90-98 part; (2) scratch resistance liniment 1-5 part; (3) lubricant 0.5-3 part; (4) oxidation inhibitor 0.5-2 part.
Said PC resin is for being high-transparent high-fluidity PC base resin, and its melting index is 20～30g/10min;
Said scratch resistance liniment is the siloxanes that has reactive group; Its reactive group is one or more in the organic groups such as hydroxyl, epoxy group(ing), carboxyl; The adding of scratch resistance liniment can well reduce skin friction coefficient and improve the hardness of product, improves the scraping and wiping resistance performance of product;
Said lubricant is two amine hydroxybenzene lubricant EBO of ethylene and ethylene bis stearamide class EBS mixture, and the mixed weight ratio of EBO and EBS is 1: 1～5: 1, and wherein the fusing point of EBO is 115-125 ℃, and the EBS fusing point is 141-146 ℃;
Said oxidation inhibitor is oxidation inhibitor 2921, and it is oxidation inhibitor 168, antioxidant 1076 and lactone stabilizer synergistic mixture, be a kind of have processing stable with long-term thermal stability can stabiliser system.
Novel scrape resistant PC preparation method is following:
(1) prepares major ingredient and auxiliary material: by major ingredient and auxiliary materials such as the accurate weighing PC of formulation content base resin, scratch resistance liniment, lubricant, oxidation inhibitor.Wherein, note testing again after the first drying if any easy moisture absorption material;
(2) mixing of main ingredient: PC major ingredient, scratch resistance liniment, lubricant, the oxidation inhibitor of accurate weighing poured into stir 3-5 minute in the high-speed mixer, each component fully is uniformly dispersed;
(3) melt extrude: the material that mixes is added the twin screw extruder with 9 sections temperature controlled region, and control extruder screw rotating speed is 230-320r/min, and the feeding rotating speed is controlled at 15-25r/min.Wherein the temperature of 9 sections temperature controlled region is respectively 1 district 150-170 ℃, and 2 district 220-240 ℃, 3 to 5 district 270-290 ℃, 6 to 9 district 290-310 ℃, head temperature is 310-320 ℃;
(4) granulation and aftertreatment: the material that twin screw extruder is extruded cools off, air-dry, pelletizing, sieve, last handling process such as packing.
Gordian technique of the present invention and principle are following:
1. adopt the transparent PC of high workability to carry out modification as major ingredient.The shortcoming of PC material is the forming process difficulty, and is not good with the properties-correcting agent consistency, adopts high workability PC to help to improve the forming process of wear-resisting scrape resistant PC.On the other hand, the good fluidity of the high PC that flows can be realized better compatiblely with scratch resistance liniment, lubricant in twin screw extruder, and the not only wear-resisting scratch resistance of preparing product is good, and mechanical property is also very good.
2. the present invention's employing is carried out modification with the wear-resisting scratch resistance liniment of reactive group to the PC resin efficiently.Conventional siloxane wear-resistant scratch resistance liniment in high mixer with only be that simple physics is mixed with resin matrix in the twin screw extruder; Because shortcomings such as the surface tension gap of itself and plastics is excessive and nonpolarity; The wear resistance of siloxanes can not get sufficient embodiment; And the wear-resisting scratch resistance liniment of the band reactive group of modification is in the extrusion of plastics, can improve the wear-resisting scratch resistance of plastic substrate after will be with the reactive group of frosting under action of high temperature crosslinked.In addition, the wear-resisting scratch resistance liniment after crosslinked can be moved to frosting hardly again, thereby has improved wear-resisting effect greatly, also promptly adds in a small amount and can realize higher wear resistance, and can not influence the transparency of PC base resin.
3. the effect of the lubricant EBO of the present invention's employing and EBS is to reduce between the material and material and the surperficial frictional force of processing units; Thereby reduce the resistance to flow of melt, reduce melt viscosity, improve the flowability of melt; Avoid the adhesion of melt and equipment, improve the smooth finish of product surface etc.
Because the application of above-mentioned technical formula, the present invention compared with prior art has following advantage:
(1) scratch-resistant modified dose of adopting of the present invention is crosslinked with matrix, and scrape resistant is effective, and a spot of interpolation can realize excellent wear-resisting scraping and wiping resistance performance, has reduced production cost greatly.In addition, come the compared with techniques (it is opaque to prepare wear-resisting PC) of the wear resistance of modification PC with domestic through adding PMMA, the type siloxane material of a spot of tape base group does not influence the transparency of PC.
(2) good fluidity of the wear-resisting scrape resistant material of mobile PC of the height of the present invention's employing and highly-efficient lubricant preparation is avoided the adhesion of melt and equipment in twin screw extruder and injection moulding machine, improves the smoothness of product surface.In addition, the interpolation of lubricant reduces the frictional force that reaches material and processing units surface product between the material, reduces equipment loss.
(3) oxidation inhibitor that adopts of the present invention can effectively reduce degraded and the decomposition of modification PC in the course of processing, slows down and the reduction of the transparency that prevents in the course of processing, to cause because of the matrix xanthochromia, and the mechanical property of the wear-resisting scrape resistant PC of production is good.
Embodiment
Below in conjunction with instance, the present invention is further elaborated:
With high workability PC is matrix, and active type siloxane material is that two amine hydroxybenzene lubricant EBO of scratch resistance liniment, ethylene and ethylene bis stearamide class EBS are lubricant, and oxidation inhibitor 2921 is oxidation inhibitor.Concrete proportioning is as shown in table 1 below.
Table 1 experiment proportioning table (weight part)
| The starting material title | Comparative Examples | Embodiment 1 | Embodiment 2 | Embodiment 3 |
| PC | 98 | 95 | 92 | 97 |
| The anti-liniment of scraping | 0 | 3 | 0 | 3 |
| EBO | 0 | 0 | 2 | 2 |
| EBS | 0 | 0 | 1 | 1 |
| 2921 | 2 | 2 | 2 | 2 |
Prepare the PC material according to concrete prescription in the table 1 by method shown in claims 12, in injection moulding machine, prepare sample and carry out the product performance test, test data is as shown in table 2.
Table 2 performance comparison table
| Project | Comparative Examples | Embodiment 1 | Embodiment 2 | Embodiment 3 |
| Tensile strength MPa | 43 | 37 | 44 | 40 |
| Flexural strength MPa | 59 | 50 | 60 | 55 |
| Shock strength J/m | 170 | 150 | 172 | 165 |
| The molten g/10min that refers to | 20 | 18 | 28 | 25 |
| Surface hardness | 2B | 2H | 2B | 2H |
| Transparency | 1 | 0.8 | 0.95 | 0.83 |
Annotate: wherein transparency definition Comparative Examples transparency is 1, characterizes its transparency through transmittance.
Can know that through test data in the table 2 though anti-scrape single being added on of liniment and can access scrape resistant PC resin in the matrix resin, its mechanical property such as tensile strength, flexural strength, shock strength etc. descend too big, are unfavorable for it and apply.The single interpolation of lubricant can improve the flowing property of resin matrix greatly, and its scraping and wiping resistance performance has no variation, though help moulding but be unfavorable for its application in the scrape resistant field.Lubricant not only makes its scraping and wiping resistance performance be improved with anti-compound use of scraping liniment, and its mechanical property and the transparency all do not have too big decline.
Claims (2)
1. the preparation of a high transparent wear-resisting scrape resistant PC material is characterized in that, is made up of the following material that calculates by weight:
(1) PC resin 90-98 part
(2) scratch resistance liniment 1-5 part
(3) lubricant 0.5-3 part
(4) oxidation inhibitor 0.5-2 part
Wherein, said PC resin is for being high-transparent high-fluidity PC base resin, and its melting index is 20～30g/10min; Said scratch resistance liniment is the siloxanes that has reactive group, and its reactive group is one or more in the organic groups such as hydroxyl, epoxy group(ing), carboxyl.
2. one kind according to the transparent wear-resisting scrape resistant PC material of the described height of claim 1; It is characterized in that its preparation method is: according to claims 1 described composition and proportion ingredient and mix, use twin screw extruder to produce, said forcing machine is the twin screw extruder with 9 sections temperature controlled region; The forcing machine rotating speed is 230-320r/min; The temperature of 9 sections temperature controlled region is respectively a district 150-170 ℃, and 2 district 220-240 ℃, 3 to 5 district 270-290 ℃; 6 to 9 district 290-310 ℃, head temperature is 310-320 ℃.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210003374XA CN102585475A (en) | 2012-01-06 | 2012-01-06 | High-transparent anti-wear anti-scraping PC (Poly Carbonate) material and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210003374XA CN102585475A (en) | 2012-01-06 | 2012-01-06 | High-transparent anti-wear anti-scraping PC (Poly Carbonate) material and preparation method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102850761A (en) * | 2012-09-26 | 2013-01-02 | 上海锦湖日丽塑料有限公司 | Scratch-resistant polycarbonate and preparation method thereof |
| CN103013077A (en) * | 2012-12-14 | 2013-04-03 | 上海锦湖日丽塑料有限公司 | Ultraviolet (UV) curing scratch-resistant polycarbonate and preparation method thereof |
| CN103483796A (en) * | 2013-09-29 | 2014-01-01 | 太仓市鸿运包装材料有限公司 | Scratching-resistant and flame-retardant PC (polycarbonate) film material and preparation method thereof |
| CN106977722A (en) * | 2017-04-01 | 2017-07-25 | 广州天赐有机硅科技有限公司 | A kind of modified polyorganosiloxane of active group end-blocking and its preparation method and application |
| CN115181408A (en) * | 2022-08-17 | 2022-10-14 | 浙江普山新材料科技有限公司 | Wear-resistant PC resin material and preparation method thereof |
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| US20040054045A1 (en) * | 2001-01-25 | 2004-03-18 | Akio Nodera | Flame-retardant polycarbonate resin composition and molded article thereof |
| CN102061072A (en) * | 2010-08-18 | 2011-05-18 | 张万虎 | Environment-friendly halogen-free non-phosphorus flame-retardant polycarbonate resin composition |
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2012
- 2012-01-06 CN CN201210003374XA patent/CN102585475A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040054045A1 (en) * | 2001-01-25 | 2004-03-18 | Akio Nodera | Flame-retardant polycarbonate resin composition and molded article thereof |
| CN102061072A (en) * | 2010-08-18 | 2011-05-18 | 张万虎 | Environment-friendly halogen-free non-phosphorus flame-retardant polycarbonate resin composition |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102850761A (en) * | 2012-09-26 | 2013-01-02 | 上海锦湖日丽塑料有限公司 | Scratch-resistant polycarbonate and preparation method thereof |
| CN102850761B (en) * | 2012-09-26 | 2015-04-01 | 上海锦湖日丽塑料有限公司 | Scratch-resistant polycarbonate and preparation method thereof |
| CN103013077A (en) * | 2012-12-14 | 2013-04-03 | 上海锦湖日丽塑料有限公司 | Ultraviolet (UV) curing scratch-resistant polycarbonate and preparation method thereof |
| CN103013077B (en) * | 2012-12-14 | 2014-10-22 | 上海锦湖日丽塑料有限公司 | Ultraviolet (UV) curing scratch-resistant polycarbonate and preparation method thereof |
| CN103483796A (en) * | 2013-09-29 | 2014-01-01 | 太仓市鸿运包装材料有限公司 | Scratching-resistant and flame-retardant PC (polycarbonate) film material and preparation method thereof |
| CN106977722A (en) * | 2017-04-01 | 2017-07-25 | 广州天赐有机硅科技有限公司 | A kind of modified polyorganosiloxane of active group end-blocking and its preparation method and application |
| CN115181408A (en) * | 2022-08-17 | 2022-10-14 | 浙江普山新材料科技有限公司 | Wear-resistant PC resin material and preparation method thereof |
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Application publication date: 20120718 |