WO2022111007A1 - 一种聚碳酸酯/pct聚酯组合物及其制备方法和应用 - Google Patents
一种聚碳酸酯/pct聚酯组合物及其制备方法和应用 Download PDFInfo
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- WO2022111007A1 WO2022111007A1 PCT/CN2021/119396 CN2021119396W WO2022111007A1 WO 2022111007 A1 WO2022111007 A1 WO 2022111007A1 CN 2021119396 W CN2021119396 W CN 2021119396W WO 2022111007 A1 WO2022111007 A1 WO 2022111007A1
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- WIPO (PCT)
- Prior art keywords
- pct
- polycarbonate
- resin
- polyester composition
- polyester
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Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10H—INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
- H10H20/00—Individual inorganic light-emitting semiconductor devices having potential barriers, e.g. light-emitting diodes [LED]
- H10H20/80—Constructional details
- H10H20/85—Packages
- H10H20/855—Optical field-shaping means, e.g. lenses
- H10H20/856—Reflecting means
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/08—Polymer mixtures characterised by other features containing additives to improve the compatibility between two polymers
Definitions
- the invention relates to the technical field of polymer materials, in particular to a polycarbonate/PCT polyester composition and a preparation method and application thereof.
- Materials used for LED brackets are mainly high temperature resistant polyamide (PPA) and high temperature resistant polyester (polycyclohexyl terephthalate, PCT).
- PPA high temperature resistant polyamide
- PCT polycyclohexyl terephthalate
- High temperature polyamide mainly including PA46, PA6T and PA9T
- PA46, PA6T and PA9T has high initial whiteness, good heat resistance, high fluidity, suitable for injection molding process, and low cost, and is currently the mainstream material for LED brackets.
- PA46, PA6T and PA9T the photothermal aging of PPA materials decays rapidly, and currently PPA materials can only be used for low-power products.
- PCT With the introduction of high-voltage LEDs, PCT has greater advantages in the application of medium and high-power LED brackets due to its excellent high temperature resistance to color change.
- Chinese patent applications 202010426329X and 202010452425.1 disclose the application of hyperbranched polyester resins in PCT resin compositions, which can improve the bonding force between molded products made of polyester resin compositions and silica gel, so that molded products and silica gel are not easily separated, At the same time, it has high reflectivity after adding white pigment.
- the mechanical properties of the above two PCT resin compositions are poor, and a large amount of reinforcing materials need to be added, such as glass fibers, wollastonite, potassium titanate whiskers, kaolin, talc or mica, etc., which will inevitably reduce the PCT resin composition. of light transmittance.
- the purpose of the present invention is to provide a polycarbonate/PCT polyester composition, which has the technical advantages of good mechanical properties and UV aging resistance.
- Another object of the present invention is to provide a preparation method and application of the polycarbonate/PCT polyester composition.
- a polycarbonate/PCT polyester composition comprising the following components:
- the hyperbranched polyester is 0.3-0.6 parts.
- the intrinsic viscosity of the PCT resin is 0.6-0.8 dL/g.
- the melt mass flow rate of the polycarbonate resin is 10-30g/10min, and the conditions are 300°C and 1.20kgf.
- the molecular weight of the hyperbranched polyester is 2000-10000 g/mol, and the number of carboxyl groups is 12-48/mol.
- the hydroxyl-terminated hyperbranched polyester may be a carboxyl-terminated aliphatic hyperbranched polyester and/or a carboxyl-terminated aromatic hyperbranched polyester.
- the hyperbranched polyesters used in the present application are commercially available.
- reinforcing material is selected from at least one of glass fiber, wollastonite, potassium titanate whisker, kaolin, talc, mica .
- the polycarbonate/PCT polyester composition of the present invention can also decide whether to add antioxidants, impact modifiers, flame retardants, fluorescent whitening agents, lubricants, plasticizers, thickeners, anti-oxidants, etc. Additives such as electrostatic agents, nucleating agents, UV stabilizers, mold release agents, and dyes.
- the preparation method of the above-mentioned polycarbonate/PCT polyester composition comprises the following steps: uniformly mixing PCT resin with polycarbonate resin and reinforcing material, then melt-blending and extruding with hyperbranched polyester through a twin-screw extruder. After pelletizing to obtain a polyester resin composition, the temperature of the twin-screw extruder is set at 230-300°C.
- the present invention can improve the mechanical properties by adding a certain amount of PC resin to the PCT resin.
- PC resin due to the poor compatibility between PCT resin and PC resin, the problem of compatibility is solved by adding a certain amount of hyperbranched polyester with specific parameters.
- hyperbranched polyester contains a large number of carboxyl groups, which can react with the end groups generated by the cleavage of PCT resin and PC resin, linking the two molecules through chemical bonds.
- the cyclohexyl groups in the PCT molecular chain will be uniformly distributed in the composition.
- higher energy is required for the transition of the cyclohexyl electrons to the transition state, and under UV irradiation, the stability of the molecular chain is better, and the UV resistance of the composition is higher.
- the raw materials used in the following examples and comparative examples are derived from commercially available products.
- PCT resin-A intrinsic viscosity: 0.719dL/g, Eastman Chemical Products, PCT36296;
- PCT resin-B intrinsic viscosity: 0.65dL/g, SK Chemicals, 0302;
- PCT resin-C intrinsic viscosity: 0.75dL/g, SK Chemicals, 0502;
- PC resin-A The melt mass flow rate is 15g/10min, from Mitsubishi Engineering Plastics, S-3000R, the melt mass flow rate test temperature is 300°C, and the load is 1.20kgf;
- PC resin-B The melt mass flow rate is 7.5g/10min, from Mitsubishi Engineering Plastics, S-1000R, the melt mass flow rate test temperature is 300°C, and the load is 1.20kgf;
- PC resin-C the melt mass flow rate is 63g/10min, from Mitsubishi Engineering Plastics, H-4000, the melt mass flow rate test temperature is 300°C, and the load is 1.20kgf;
- Hyperbranched polyester-A the molecular weight is 2100g/mol, the number of carboxyl groups is 12/mol, Wuhan Hyperbranched Resin Technology Co., Ltd.;
- Hyperbranched polyester-B molecular weight is 5200g/mol, number of carboxyl groups is 24/mol, Wuhan Hyperbranched Resin Technology Co., Ltd.;
- Hyperbranched polyester-C molecular weight is 9800g/mol, number of carboxyl groups is 48/mol, Wuhan Hyperbranched Resin Technology Co., Ltd.;
- Hyperbranched polyester-D molecular weight is 1200g/mol, number of carboxyl groups is 4/mol, Wuhan Hyperbranched Resin Technology Co., Ltd.;
- Hyperbranched polyester-E molecular weight is 950g/mol, number of carboxyl groups is 6/mol, Wuhan Hyperbranched Resin Technology Co., Ltd.;
- Hyperbranched polyester-F the molecular weight is 12000g/mol, the number of carboxyl groups is 48/mol, Wuhan Hyperbranched Resin Technology Co., Ltd.;
- Glass fiber F7x28: NITTO BOSEKI, Japan; chopped glass fiber CSG3PA- composed of E-glass with a length of 3mm, a main cross-sectional axis of 28 microns, a secondary cross-sectional axis of 7 microns, and an axial ratio of 4 (non-circular cross-section) 820, silica 60wt%-67wt%, alumina 33wt%-40wt%.
- polyester resin composition mix PCT resin, polycarbonate resin, glass fiber uniformly, then melt blend with hyperbranched polyester through twin-screw extruder, extrude and pelletize, obtain
- the temperature of the twin-screw extruder was set at 230 to 300°C.
- UV resistance The light transmittance of the sample was measured on the sample after irradiating the sample with an LED light source at a wavelength of 460 nm for 500 hours in a constant temperature oven at 85° C. and 85% RH.
- Table 1 Contents (parts by weight) and test results of each component of the polycarbonate/PCT polyester compositions of Examples 1-9
- Example 7/8/9 it can be seen that the preferred addition amount of hyperbranched polyester can further inhibit UV aging.
- Comparative Example 5 It can be seen from Comparative Example 5 that although an excessively high content of polycarbonate can improve the mechanical properties of the composition, it will further reduce the UV aging resistance.
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
Claims (8)
- 一种聚碳酸酯/PCT聚酯组合物,其特征在于,按重量份计,包括以下组分:PCT树脂 100份;聚碳酸酯树脂 10-50份;超支化聚酯 0.05-1份,其中,分子量为1000-11000g/mol,羧基数为4-48/mol。
- 根据权利要求1所述的聚碳酸酯/PCT聚酯组合物,其特征在于,超支化聚酯0.3-0.6份。
- 根据权利要求1所述的聚碳酸酯/PCT聚酯组合物,其特征在于,所述的PCT树脂的特性粘度为0.65-0.75dL/g。
- 根据权利要求1或2所述的聚碳酸酯/PCT聚酯组合物,其特征在于,所述的聚碳酸酯树脂的熔体质量流动速率为10-30g/10min,条件为300℃、1.20kgf。
- 根据权利要求1或2所述的聚碳酸酯/PCT聚酯组合物,其特征在于,超支化聚酯的分子量为2000-10000g/mol,羧基数为12-48/mol。
- 根据权利要求1或2所述的聚碳酸酯/PCT聚酯组合物,其特征在于,按重量份计,还包括0-20份增强材料;所述的增强材料选自玻璃纤维、硅灰石、钛酸钾晶须、高岭土、滑石、云母中的至少一种。
- 权利要求1-6任一项所述的聚碳酸酯/PCT聚酯组合物的制备方法,其特征在于,包括以下步骤:将PCT树脂与聚碳酸酯树脂、增强材料混合均匀,然后与超支化聚酯通过双螺杆挤出机熔融共混、挤出造粒,得到聚碳酸酯/PCT聚酯组合物,双螺杆挤出机的温度设置为230~300℃。
- 权利要求1-6任一项所述的聚碳酸酯/PCT聚酯组合物的应用,其特征在于,用于制备LED反射板。
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011371298.9 | 2020-11-30 | ||
| CN202011371298.9A CN112538240B (zh) | 2020-11-30 | 2020-11-30 | 一种聚碳酸酯/pct聚酯组合物及其制备方法和应用 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2022111007A1 true WO2022111007A1 (zh) | 2022-06-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2021/119396 Ceased WO2022111007A1 (zh) | 2020-11-30 | 2021-09-18 | 一种聚碳酸酯/pct聚酯组合物及其制备方法和应用 |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN112538240B (zh) |
| WO (1) | WO2022111007A1 (zh) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112538240B (zh) * | 2020-11-30 | 2022-07-19 | 金发科技股份有限公司 | 一种聚碳酸酯/pct聚酯组合物及其制备方法和应用 |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101906244A (zh) * | 2010-08-12 | 2010-12-08 | 东莞市信诺橡塑工业有限公司 | 聚碳酸酯组合物及其制备方法 |
| US20110152456A1 (en) * | 2009-12-17 | 2011-06-23 | E. I. Du Pont De Nemours And Company | Polyester Compositions with Good Melt Rheological Properties |
| CN102408682A (zh) * | 2005-01-14 | 2012-04-11 | 巴斯夫欧洲公司 | 耐水解的可流动性聚酯 |
| CN102947087A (zh) * | 2010-06-14 | 2013-02-27 | 纳幕尔杜邦公司 | 耐长期户外暴露的聚酯复合结构及其制备方法 |
| CN103865246A (zh) * | 2012-12-14 | 2014-06-18 | 苏州汉扬精密电子有限公司 | 一种玻璃纤维增强树脂组合物 |
| CN111117192A (zh) * | 2019-12-28 | 2020-05-08 | 会通新材料股份有限公司 | 一种高cti值、高灼热丝、低热球压痕的聚碳酸酯/聚酯合金及其制备方法 |
| CN112538240A (zh) * | 2020-11-30 | 2021-03-23 | 金发科技股份有限公司 | 一种聚碳酸酯/pct聚酯组合物及其制备方法和应用 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111763408B (zh) * | 2020-05-19 | 2022-08-19 | 金发科技股份有限公司 | 一种聚酯树脂组合物及其制备方法和应用 |
| CN111732819B (zh) * | 2020-05-26 | 2022-08-19 | 金发科技股份有限公司 | 一种聚酯树脂组合物及其制备方法和应用 |
-
2020
- 2020-11-30 CN CN202011371298.9A patent/CN112538240B/zh active Active
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- 2021-09-18 WO PCT/CN2021/119396 patent/WO2022111007A1/zh not_active Ceased
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102408682A (zh) * | 2005-01-14 | 2012-04-11 | 巴斯夫欧洲公司 | 耐水解的可流动性聚酯 |
| US20110152456A1 (en) * | 2009-12-17 | 2011-06-23 | E. I. Du Pont De Nemours And Company | Polyester Compositions with Good Melt Rheological Properties |
| CN102947087A (zh) * | 2010-06-14 | 2013-02-27 | 纳幕尔杜邦公司 | 耐长期户外暴露的聚酯复合结构及其制备方法 |
| CN101906244A (zh) * | 2010-08-12 | 2010-12-08 | 东莞市信诺橡塑工业有限公司 | 聚碳酸酯组合物及其制备方法 |
| CN103865246A (zh) * | 2012-12-14 | 2014-06-18 | 苏州汉扬精密电子有限公司 | 一种玻璃纤维增强树脂组合物 |
| CN111117192A (zh) * | 2019-12-28 | 2020-05-08 | 会通新材料股份有限公司 | 一种高cti值、高灼热丝、低热球压痕的聚碳酸酯/聚酯合金及其制备方法 |
| CN112538240A (zh) * | 2020-11-30 | 2021-03-23 | 金发科技股份有限公司 | 一种聚碳酸酯/pct聚酯组合物及其制备方法和应用 |
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| Publication number | Publication date |
|---|---|
| CN112538240A (zh) | 2021-03-23 |
| CN112538240B (zh) | 2022-07-19 |
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