CN110000959A - A kind of reflecting mirror and preparation method thereof based on PC - Google Patents
A kind of reflecting mirror and preparation method thereof based on PC Download PDFInfo
- Publication number
- CN110000959A CN110000959A CN201910151581.1A CN201910151581A CN110000959A CN 110000959 A CN110000959 A CN 110000959A CN 201910151581 A CN201910151581 A CN 201910151581A CN 110000959 A CN110000959 A CN 110000959A
- Authority
- CN
- China
- Prior art keywords
- reflecting mirror
- preparation
- mold
- smelting furnace
- melting charge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B13/00—Conditioning or physical treatment of the material to be shaped
- B29B13/02—Conditioning or physical treatment of the material to be shaped by heating
- B29B13/022—Melting the material to be shaped
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0053—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor combined with a final operation, e.g. shaping
- B29C45/0055—Shaping
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/76—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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/76—Measuring, controlling or regulating
- B29C45/78—Measuring, controlling or regulating of temperature
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L69/00—Compositions of polycarbonates; Compositions of derivatives of polycarbonates
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/08—Mirrors
- G02B5/0816—Multilayer mirrors, i.e. having two or more reflecting layers
- G02B5/085—Multilayer mirrors, i.e. having two or more reflecting layers at least one of the reflecting layers comprising metal
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Optics & Photonics (AREA)
- General Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Thermal Sciences (AREA)
- Optical Elements Other Than Lenses (AREA)
Abstract
The invention belongs to auto parts fields, disclose a kind of preparation method of reflecting mirror based on PC, the following steps are included: it is melting charge that dry low bulk PC material, polystyrene, fibrous material, which are mixed agitating and heating in addition smelting furnace, heating temperature is 265 DEG C -270 DEG C, mixing speed 160-300r/min；The melting charge stirred evenly in step S1 is injected into mold from smelting furnace nozzle, the temperature of the mold is 265 DEG C -270 DEG C；Be passed through after coolant liquid is quickly cooled down and be opened in the mold, obtain basal body of reflector, cooling time 2min；One layer of metal layer is plated in the basal body of reflector inner surface to vacuum coating technology, obtains reflecting mirror, the mirror structure function admirable, thermal expansion coefficient be low, good stability of the dimension, reflection efficiency are high.
Description
Technical field
The present invention relates to technical field of automobile accessories, in particular to a kind of reflection based on PC on car headlamp
Mirror and preparation method thereof.
Background technique
Automobile LED reflection mirror, serves as the core function of LED car lamp light distribution, thus to the dimensional accuracy of reflecting mirror and
The requirement of dimensional stability is very high, to guarantee that luminous intensity distribution performance can meet the requirements.
LED reflection mirror is manufactured there are mainly two types of common modes, and one is BMC material is used, priming paint is aluminized again after injection molding.
Another is directly aluminized after injection molding using conventional PC material.The first BMC material is thermosetting material, and heatproof is very high,
Can be to 200 degrees Celsius, dimensional stability is also fine, but BMC material can not directly aluminize, and needs one among substrate and aluminium layer
Layer priming paint, along with high-temperature baking is needed after BMC injection molding, clean etc., then paint layer attachment and baking are carried out, later could
It aluminizes, complex procedures are tediously long, and qualification rate is difficult to ensure.In addition, the film thickness and the uniformity of paint are difficult to control after painting,
Paint layer is blocked up, easily causes light distribution superbright after aluminizing, and paint layer unevenly easily causes light type bad, there is the problems such as stray light.Second
For mode directly to aluminize after routine PC material injection, this method is not necessarily to priming paint, can directly aluminize, process is simple；And due to LED
Light source is that cold light source is of less demanding to heatproof, and the heat resisting temperature of PC can satisfy use demand substantially.But routine PC mold is received
Shrinkage and thermal expansion coefficient are higher, and parts size precision and dimensional stability are difficult to control, and often easily lead to light type and want with design
Now larger offset is found out, light distribution demand is unable to satisfy.
Summary of the invention
In order to solve problems in the prior art, a kind of the embodiment of the invention provides structural behaviours excellent, thermal expansion coefficient
Low, shrinking percentage, the reflecting mirror of good stability of the dimension, reflection efficiency height based on PC, meanwhile, provide the preparation side of the reflecting mirror
Method.
In order to achieve the above objectives, a technical solution of the present invention is as follows:
A kind of preparation method of the reflecting mirror based on PC, comprising the following steps:
It is melting that dry low bulk PC material, polystyrene, fibrous material are mixed and agitating and heating in smelting furnace are added by S1
Material, heating temperature are 265 DEG C -270 DEG C, mixing speed 160-300r/min；
The melting charge stirred evenly in step S1 is injected mold from smelting furnace nozzle by S2, and the temperature of the mold is 265 DEG C-
270℃；
S3 is passed through after coolant liquid is quickly cooled down in the mold and is opened, and obtains basal body of reflector, cooling time 2min；
S4 plates one layer of metal layer in the basal body of reflector inner surface to vacuum coating technology, obtains reflecting mirror.
Further specifically, the humidity of the PC material is less than 0.01%.
Further specifically, the fibrous material is glass fibre and/or carbon fiber.
Further specifically, the mass fraction of the melting charge are as follows:
50-80 parts of PC material；
10-25 parts of polystyrene；
2-8 parts of fibrous material.
Further specifically, the temperature of smelting furnace nozzle is 265 DEG C -270 DEG C.
Further specifically, the melting charge stirred evenly in step S1 is injected into mold from smelting furnace nozzle, injection pressure is
80Mpa。
Further specifically, the metal layer is silver layer or aluminium layer.
Another technical solution of the present invention is as follows:
A kind of reflecting mirror based on PC, including basal body of reflector and the metal layer for spraying to basal body of reflector, the reflection
The mass fraction of mirror matrix are as follows:
50-80 parts of PC material；
10-25 parts of polystyrene；
2-8 parts of fibrous material.
Technical solution provided in an embodiment of the present invention uses addition polystyrene and fibrous material in PC material effectively to mention
The high rigidity of PC material, reduces its thermal expansion coefficient, improves its dimensional stability.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below to the technical side in the embodiment of the present invention
Case is clearly and completely described, it is clear that and described embodiments are only a part of the embodiments of the present invention, rather than all
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art institute without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
A kind of reflecting mirror based on PC, including basal body of reflector and the metal layer for spraying to basal body of reflector, the reflection
The mass fraction of mirror matrix are as follows:
50-80 parts of PC material；
10-25 parts of polystyrene；
2-8 parts of fibrous material.
The preparation method of reflecting mirror in the embodiment based on PC, comprising the following steps:
It is melting that dry low bulk PC material, polystyrene, fibrous material are mixed and agitating and heating in smelting furnace are added by S11
Material, specifically, the humidity of PC material is less than 0.01%, and heating temperature is 265 DEG C -270 DEG C, mixing speed 160-300r/
Min, injection pressure 80Mpa；
Specifically, PC material and polystyrene are transparent material, and the two refractive index is very close, have good light
Characteristic is learned, while polystyrene can play the role of Rigid Organic Fillers in PC material, increase the rigidity of PC material, reduced
Its thermal expansion coefficient, while fibrous material is added, it will further improve its dimensional stability.
The melting charge stirred evenly in step S1 is injected mold from smelting furnace nozzle by S12, and the temperature of the mold is 265
DEG C -270 DEG C, in order to guarantee melting charge in injection moulding process, the temperature of smelting furnace nozzle and the temperature of mold are identical, be 265 DEG C -
270℃；
S13 is passed through after coolant liquid is quickly cooled down in the mold and is opened, and obtains basal body of reflector, cooling time is
2min；
S14 plates one layer of metal layer in the basal body of reflector inner surface to vacuum coating technology, obtains reflecting mirror.
Specifically, the fibrous material is glass fibre and/or carbon fiber.
Specifically, the metal layer is silver layer.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of preparation method of the reflecting mirror based on PC, which comprises the following steps:
It is melting charge that dry low bulk PC material, polystyrene, fibrous material are mixed and agitating and heating in smelting furnace are added by S1, is added
Hot temperature is 265 DEG C -270 DEG C, mixing speed 160-300r/min；
The melting charge stirred evenly in step S1 is injected mold from smelting furnace nozzle by S2, and the temperature of the mold is 265 DEG C -270
℃；
S3 is passed through after coolant liquid is quickly cooled down in the mold and is opened, and obtains basal body of reflector, cooling time 2min；
S4 plates one layer of metal layer in the basal body of reflector inner surface to vacuum coating technology, obtains reflecting mirror.
2. the preparation method of the reflecting mirror according to claim 1 based on PC, which is characterized in that the humidity of the PC material
Less than 0.01%.
3. the preparation method of the reflecting mirror according to claim 1 based on PC, which is characterized in that the fibrous material is glass
Glass fiber and/or carbon fiber.
4. the preparation method of the reflecting mirror according to claim 1 based on PC, which is characterized in that the quality of the melting charge
Number are as follows:
50-80 parts of PC material；
10-25 parts of polystyrene；
2-8 parts of fibrous material.
5. the preparation method of the reflecting mirror according to claim 1 based on PC, which is characterized in that the temperature of smelting furnace nozzle is
265℃-270℃。
6. the preparation method of the reflecting mirror according to claim 1 based on PC, which is characterized in that equal by being stirred in step S1
Even melting charge injects mold, injection pressure 80Mpa from smelting furnace nozzle.
7. the preparation method of the reflecting mirror according to claim 1 based on PC, which is characterized in that the metal layer is silver layer
Or aluminium layer.
8. a kind of reflecting mirror of the preparation method preparation of reflecting mirror as claimed in claim 1 based on PC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910151581.1A CN110000959A (en) | 2019-02-28 | 2019-02-28 | A kind of reflecting mirror and preparation method thereof based on PC |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910151581.1A CN110000959A (en) | 2019-02-28 | 2019-02-28 | A kind of reflecting mirror and preparation method thereof based on PC |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110000959A true CN110000959A (en) | 2019-07-12 |
Family
ID=67166106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910151581.1A Pending CN110000959A (en) | 2019-02-28 | 2019-02-28 | A kind of reflecting mirror and preparation method thereof based on PC |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110000959A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104086971A (en) * | 2014-07-15 | 2014-10-08 | 宁波浙铁大风化工有限公司 | High-flowability and flame-retardant polycarbonate and polystyrene composition and preparation method thereof |
| CN105348764A (en) * | 2015-11-23 | 2016-02-24 | 陈桂兴 | Modified polycarbonate material lampshade and preparation method thereof |
| CN107418180A (en) * | 2017-05-27 | 2017-12-01 | 深圳市绿自然生物降解科技有限公司 | A kind of high rigidity light diffusion PC materials and preparation method and application |
| CN108032484A (en) * | 2017-12-14 | 2018-05-15 | 上海小糸车灯有限公司 | A kind of automobile using LED reflection mirror and preparation method thereof |
-
2019
- 2019-02-28 CN CN201910151581.1A patent/CN110000959A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104086971A (en) * | 2014-07-15 | 2014-10-08 | 宁波浙铁大风化工有限公司 | High-flowability and flame-retardant polycarbonate and polystyrene composition and preparation method thereof |
| CN105348764A (en) * | 2015-11-23 | 2016-02-24 | 陈桂兴 | Modified polycarbonate material lampshade and preparation method thereof |
| CN107418180A (en) * | 2017-05-27 | 2017-12-01 | 深圳市绿自然生物降解科技有限公司 | A kind of high rigidity light diffusion PC materials and preparation method and application |
| CN108032484A (en) * | 2017-12-14 | 2018-05-15 | 上海小糸车灯有限公司 | A kind of automobile using LED reflection mirror and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5049444B2 (en) | Diffusion layer | |
| CN104552965B (en) | Preparation technology of automobile lamp cover | |
| JPS6131441B2 (en) | ||
| CN103946268B (en) | With the metallized multi-layer product of low thermal expansion coefficient made of specific polycarbonate | |
| CN106696313B (en) | A kind of manufacturing method for exempting from primary coat lamp reflector | |
| KR100389949B1 (en) | Lamp reflector and method of manufacturing the same | |
| CN110000959A (en) | A kind of reflecting mirror and preparation method thereof based on PC | |
| TW202421721A (en) | Modified pc and tpu composite material, preparation method and application thereof | |
| CN108032484A (en) | A kind of automobile using LED reflection mirror and preparation method thereof | |
| CN103538323A (en) | Manufacturing method of rubber diaphragm | |
| US20200002485A1 (en) | Liquid crystal polymer resin composition for outer plate and outer plate | |
| CN101851404A (en) | Preparation method of polyester composition with high surface gloss | |
| WO2002033451A1 (en) | Projection lens | |
| CN105365148A (en) | Manufacturing process of car lamp reflector | |
| CN201489238U (en) | Double-layered panel ultra-thin LCD device | |
| CN216786028U (en) | PVD anti-overflow plates high temperature resistant protection film | |
| CN113589413A (en) | High-brightness diffusion plate and manufacturing method thereof | |
| CN203876328U (en) | Reflector plate | |
| CN106833302A (en) | A kind of rapid curing diffusing reflection coating and preparation method thereof and application method | |
| CN207015256U (en) | A kind of novel automobile rear view mirror | |
| CN110003679A (en) | A kind of bulk film reflecting mirror and preparation method thereof | |
| CN109307907A (en) | The preparation method of anti-reflection coating and backlight module with the anti-reflection coating | |
| CN111239873A (en) | High-light-shading-property composite board and preparation method thereof | |
| JP3533101B2 (en) | Method for producing thermoplastic polymer sheet | |
| CN114334273B (en) | Metal nanowire composite film and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190712 |