CN115612271B - Heat-resistant flame-retardant PC (polycarbonate) reinforced material and production method thereof - Google Patents
Heat-resistant flame-retardant PC (polycarbonate) reinforced material and production method thereof Download PDFInfo
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- CN115612271B CN115612271B CN202211220474.8A CN202211220474A CN115612271B CN 115612271 B CN115612271 B CN 115612271B CN 202211220474 A CN202211220474 A CN 202211220474A CN 115612271 B CN115612271 B CN 115612271B
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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
- C08L69/00—Compositions of polycarbonates; Compositions of derivatives of polycarbonates
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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
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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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
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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Abstract
The invention relates to a heat-resistant flame-retardant PC reinforcing material and a production method thereof, in particular to a heat-resistant flame-retardant PC reinforcing material, which is characterized by comprising the following components in parts by weight: polycarbonate: 50-70 parts; a compound of formula (I): 1-10 parts; flame retardant: 1-10 parts; heat-resistant modifier: 10-40 parts of a lubricant; and (3) a compatilizer: 0.1-15 parts; light stabilizers: 0.05-0.2 part; an antioxidant: 0.1-15 parts. Compared with the comparative example, the heat-resistant flame-retardant PC reinforced material has excellent mechanical property, heat resistance and good flame-retardant effect.
Description
Technical Field
The invention belongs to the technical field of polymers, and particularly relates to a heat-resistant flame-retardant PC (polycarbonate) reinforced material and a production method thereof.
Background
Polycarbonate (PC) is a thermoplastic engineering plastic with excellent comprehensive performance, has outstanding performances of impact resistance, heat resistance, high light transmittance and the like, is second largest engineering plastic which is inferior to nylon worldwide, has wide application in national economy, and is widely applied to the fields of electronics, electric appliances, automobiles, optical materials and the like, but also has the defects of easy stress cracking, poor notch impact toughness, poor aging resistance and the like due to the influence of a unique structure of the PC.
Therefore, there is a need to develop new PC materials to overcome the problem of poor heat and flame resistance of PC materials.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a heat-resistant flame-retardant PC reinforcing material and a production method thereof.
In order to achieve the purpose of the invention, the invention provides a heat-resistant flame-retardant PC reinforced material, which comprises the following components in parts by weight:
polycarbonate: 50-70 parts of a compound of formula (I),
a compound of formula (I): 1-10 parts of a compound containing,
(I)；
flame retardant: 1-10 parts;
heat-resistant modifier: 10-40 parts of a lubricant;
and (3) a compatilizer: 0.1-15 parts;
light stabilizers: 0.05-0.2 part;
an antioxidant: 0.1-15 parts.
In some preferred embodiments, the flame retardant described herein is selected from one or more of brominated epoxy resins, decabromodiphenylethane, and indene bromide.
In some preferred embodiments, the heat resistant modifier of the present invention is selected from one or more of maleimide, maleic anhydride, and maleic anhydride grafts.
In some preferred embodiments, the light stabilizer described herein is a polymer of succinic acid with (4-hydroxy-2, 6-tetramethyl-1-piperidinol) (hindered amine light stabilizer 622) or N, the reaction product of N' -bis- (2, 6-tetramethyl-4-piperidinyl) -1, 6-hexanediamine with the polymer of 2,4, 6-trichloro-1, 3, 5-triazine and 1, 3-tetramethylbutylamine (hindered amine light stabilizer 944).
In some preferred embodiments, the compatibilizing agent of the present invention is selected from maleic anhydride grafted polypropylene.
In some preferred embodiments, the antioxidant of the present invention is selected from one or more of antioxidant 1010 (pentaerythritol tetrakis [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate), antioxidant 168 (phenyl tris (2, 4-di-tert-butyl) phosphite), antioxidant TNPP (trisnonylphenyl phosphite).
In some preferred embodiments, the heat-resistant flame-retardant PC reinforcing material provided by the invention comprises the following components in parts by weight:
polycarbonate: 55-65 parts;
a compound of formula (I): 1-10 parts of a compound containing,
(I)；
flame retardant: 1-10 parts;
heat-resistant modifier: 20-40 parts of a lubricant;
and (3) a compatilizer: 0.1-5 parts; and
light stabilizers: 0.05-0.2 part;
an antioxidant: 0.1-5 parts.
In some preferred embodiments, the heat-resistant flame-retardant PC reinforcing material provided by the invention comprises the following components in parts by weight:
polycarbonate: 55-65 parts;
a compound of formula (I): 1-10 parts of a compound containing,
(I)；
flame retardant: 1-10 parts;
heat-resistant modifier: 20-35 parts of a lubricant;
and (3) a compatilizer: 0.1-5 parts; and
light stabilizers: 0.05-0.2 part;
an antioxidant: 0.1-5 parts;
wherein the weight ratio of the polycarbonate to the compound shown in the formula (I) is 5.5-65:1.
in some preferred embodiments, the heat-resistant flame-retardant PC reinforcing material provided by the invention comprises the following components in parts by weight:
polycarbonate: 55-65 parts;
a compound of formula (I): 1-10 parts of a compound containing,
(I)；
flame retardant: 1-10 parts;
heat-resistant modifier: 20-35 parts of a lubricant;
and (3) a compatilizer: 0.1-5 parts; and
light stabilizers: 0.05-0.2 part;
an antioxidant: 0.1-5 parts;
wherein the weight ratio of the polycarbonate to the compound shown in the formula (I) is 10:1.
in some preferred embodiments, the heat-resistant flame-retardant PC reinforcing material provided by the invention comprises the following components in parts by weight:
polycarbonate: 60 parts;
a compound of formula (I): 6 parts of the components are mixed together,
(I)；
decabromodiphenyl ethane: 6 parts;
maleimide: 27 parts;
maleic anhydride grafted polypropylene: 0.5 parts;
light stabilizers: 0.05-0.2 part; and
antioxidant 168:0.5 part.
The melt flow rate of the polycarbonate is 5-10 g/10min under the conditions of 300 ℃ and 1.2Kg, and the weight average molecular weight is 3.0-4.0 ten thousand. The PC resin with large molecular weight is selected to ensure good toughness of the material.
The invention also provides a production method of the heat-resistant flame-retardant PC reinforced material, which comprises the following steps:
1) Respectively weighing polycarbonate, a compound shown in a formula (I), a flame retardant, a heat-resistant modifier, a compatilizer, a light stabilizer and an antioxidant according to the weight percentage;
2) Adding the components weighed in the steps into a high-speed mixer, closing a charging cover, starting the high-speed mixer, mixing for 15 minutes, adding into a double-screw extruder, controlling the rotating speed of the screw extruder to be 260-560rpm and the temperature to be 180-250 ℃, and performing melt extrusion granulation to obtain the product.
Compared with the prior art, the invention has the beneficial effects that:
the heat-resistant flame-retardant PC reinforced material solves the problems of poor heat resistance and poor flame retardant effect of the common PC reinforced material by designing and synthesizing the compound shown in the formula (I) with novel structure, and the heat-resistant flame-retardant PC reinforced material containing the compound shown in the formula (I) has good heat-resistant effect and excellent flame retardant effect, thereby ensuring the stability of the structure and being widely applied in a plurality of fields.
Detailed Description
The following representative examples are provided to better illustrate the invention and are not intended to limit the scope of the invention, and the materials used in the following examples are commercially available unless otherwise specified.
In the examples of the present invention, the polycarbonate used was a product having a German Bayer brand 2805, a melt flow rate of 10g/10min at 300℃under 1.2Kg conditions, and a weight average molecular weight of 3.5 ten thousand.
Preparation of the Compound of formula (I)
(I)
4- (4-methoxyphenyl) butanoic acid (19.40 g, 0.10 mol) was dissolved in N, N-dimethylformamide (200 mL), and potassium carbonate (41.5 g, 0.30 mol), 22.7 g of 4-N-butylbenzyl bromide were added. The reaction was carried out overnight at 25 ℃. The reaction mixture was extracted with 100% water mL and ethyl acetate, washed with saturated brine 2 times, and dried over anhydrous sodium sulfate to give the title compound. MS M/z (ESI): 341.2 [ M+H ]] + 。
Example 1
The heat-resistant flame-retardant PC reinforced material comprises the following raw materials in parts by weight:
polycarbonate: 60 parts;
a compound of formula (I) prepared in preparation example: 6 parts;
decabromodiphenyl ethane: 6 parts;
maleimide: 27 parts;
maleic anhydride grafted polypropylene: 0.5 parts;
hindered amine light stabilizer 622:0.1 part; and
antioxidant 168:0.5 parts;
respectively weighing polycarbonate, a compound shown in a formula (I) prepared in a preparation example, decabromodiphenyl ethane, maleimide, maleic anhydride grafted polypropylene, a hindered amine light stabilizer 622 and an antioxidant 168 according to the weight percentage; adding the components weighed in the steps into a high-speed mixer, closing a charging cover, starting the high-speed mixer, mixing for 15 minutes, adding into a double-screw extruder, controlling the rotating speed of the screw extruder to be 260-560rpm and the temperature to be 180-250 ℃, and performing melt extrusion granulation to obtain the product.
Example 2
The heat-resistant flame-retardant PC reinforced material comprises the following raw materials in parts by weight:
polycarbonate: 55 parts;
a compound of formula (I) prepared in preparation example: 5.5 parts;
decabromodiphenyl ethane: 5.5 parts;
maleimide: 33 parts;
maleic anhydride grafted polypropylene: 0.5 parts;
hindered amine light stabilizer 622:0.2 parts;
antioxidant 168:0.5 part.
Respectively weighing polycarbonate, a compound shown in a formula (I) prepared in a preparation example, decabromodiphenyl ethane, maleimide, maleic anhydride grafted polypropylene, a hindered amine light stabilizer 622 and an antioxidant 168 according to the weight percentage; adding the components weighed in the steps into a high-speed mixer, closing a charging cover, starting the high-speed mixer, mixing for 15 minutes, adding into a double-screw extruder, controlling the rotating speed of the screw extruder to be 260-560rpm and the temperature to be 180-250 ℃, and performing melt extrusion granulation to obtain the product.
Example 3
The heat-resistant flame-retardant PC reinforced material comprises the following raw materials in parts by weight:
polycarbonate: 65 parts;
a compound of formula (I) prepared in preparation example: 6.5 parts;
decabromodiphenyl ethane: 5 parts;
maleimide: 22 parts;
maleic anhydride grafted polypropylene: 1 part;
hindered amine light stabilizer 944:0.05 parts;
antioxidant TNPP:0.5 part.
Respectively weighing polycarbonate, a compound shown in a formula (I) prepared in a preparation example, decabromodiphenyl ethane, maleimide, maleic anhydride grafted polypropylene, hindered amine light stabilizer 944 and antioxidant TNPP according to the weight percentage; adding the components weighed in the steps into a high-speed mixer, closing a charging cover, starting the high-speed mixer, mixing for 15 minutes, adding into a double-screw extruder, controlling the rotating speed of the screw extruder to be 260-560rpm and the temperature to be 180-250 ℃, and performing melt extrusion granulation to obtain the product.
Example 4
The heat-resistant flame-retardant PC reinforced material comprises the following raw materials in parts by weight:
polycarbonate: 60 parts;
a compound of formula (I) prepared in preparation example: 6 parts;
decabromodiphenyl ethane: 8 parts;
maleic anhydride grafts: 25 parts;
maleic anhydride grafted polypropylene: 0.5 parts;
hindered amine light stabilizer 944:0.1 part;
antioxidant 1010:0.5 part.
Respectively weighing polycarbonate, a compound shown in a formula (I) prepared in a preparation example, decabromodiphenyl ethane, maleic anhydride grafts, maleic anhydride grafted polypropylene, hindered amine light stabilizer 944 and antioxidant 1010 according to the weight percentage; adding the components weighed in the steps into a high-speed mixer, closing a charging cover, starting the high-speed mixer, mixing for 15 minutes, adding into a double-screw extruder, controlling the rotating speed of the screw extruder to be 260-560rpm and the temperature to be 180-250 ℃, and performing melt extrusion granulation to obtain the product.
Example 5
The heat-resistant flame-retardant PC reinforced material comprises the following raw materials in parts by weight:
polycarbonate: 60 parts;
a compound of formula (I) prepared in preparation example: 6 parts;
indene bromide: 8 parts;
maleic anhydride: 25 parts;
maleic anhydride grafted polypropylene: 0.5 parts;
hindered amine light stabilizer 622:0.15 parts;
antioxidant 1010:0.5 part.
Respectively weighing polycarbonate, a compound shown in a formula (I) prepared in a preparation example, indene bromide, maleic anhydride grafted polypropylene, a hindered amine light stabilizer 622 and an antioxidant 1010 according to the weight percentage; adding the components weighed in the steps into a high-speed mixer, closing a charging cover, starting the high-speed mixer, mixing for 15 minutes, adding into a double-screw extruder, controlling the rotating speed of the screw extruder to be 260-560rpm and the temperature to be 180-250 ℃, and performing melt extrusion granulation to obtain the product.
Comparative example 1
The heat-resistant flame-retardant PC reinforced material comprises the following raw materials in parts by weight:
polycarbonate: 60 parts;
decabromodiphenyl ethane: 6 parts;
maleimide: 33 parts;
maleic anhydride grafted polypropylene: 0.5 parts;
hindered amine light stabilizer 622:0.1 part; and
antioxidant 168:0.5 parts;
respectively weighing polycarbonate, decabromodiphenyl ethane, maleimide, maleic anhydride grafted polypropylene, hindered amine light stabilizer 622 and antioxidant 168 according to the weight percentage; adding the components weighed in the steps into a high-speed mixer, closing a charging cover, starting the high-speed mixer, mixing for 15 minutes, adding into a double-screw extruder, controlling the rotating speed of the screw extruder to be 260-560rpm and the temperature to be 180-250 ℃, and performing melt extrusion granulation to obtain the product.
Experimental example performance test
Performance tests were performed on the heat-resistant flame-retardant PC reinforcing materials prepared in the above examples and comparative examples. Bending performance test refers to GB/T9341-2008 standard, and bending deformation rate is 5mm/min; flexural modulus test the flexural deformation rate was 2mm/min with reference to GB/T9341-2008 standard. Melt index was measured on a melt index meter manufactured by Shanghai Sida scientific instruments Co., ltd. According to GB 3682, rockwell hardness was measured on a Rockwell hardness meter manufactured by Shanghai materials testing machine Co., ltd. According to GB 9342, and flame retardance was measured on Kunspan Ten-Chemie test instruments Co., ltd. According to UL 94.
TABLE 1 Performance test results
| Example 1 | Example 2 | Example 3 | Example 4 | Example 5 | Comparative example 1 | |
| Flexural Strength (Mpa) | 93.5 | 91.7 | 92.0 | 90.7 | 90.3 | 76.1 |
| Flexural modulus (Mpa) | 3070 | 3035 | 2980 | 2948 | 2988 | 1988 |
| Melt index (g/10 min) | 10 | 9.8 | 9.6 | 9.5 | 9.6 | 5.9 |
| Vicat softening temperature (B50/DEGC) | 120 | 111 | 105 | 119 | 115 | 78 |
| Flame retardant (UL 94) | V0 | V0 | V0 | V0 | V0 | V1 |
| Outdoor insolation for 60 days | No color change | No color change | No color change | No color change | No color change | Severe discoloration |
Compared with the comparative example, the heat-resistant flame-retardant PC reinforced material has excellent mechanical property and good heat resistance and flame retardance.
Although the invention has been described in detail hereinabove, those skilled in the art will appreciate that various modifications and changes can be made thereto without departing from the spirit and scope of the invention. The scope of the invention is not limited by the detailed description set forth above, but rather is to be attributed to the claims.
Claims (2)
1. The heat-resistant flame-retardant PC reinforced material is characterized by comprising the following components in parts by weight:
polycarbonate: 60 parts of a powder of a mixture of components,
a compound of formula (I): 6 parts of the components are mixed together,
(I)；
decabromodiphenyl ethane: 6 parts;
maleimide: 27 parts;
maleic anhydride grafted polypropylene: 0.5 parts;
light stabilizers: 0.05-0.2 part; and
antioxidant 168:0.5 part.
2. A method of producing the heat-resistant flame-retardant PC reinforcement material of claim 1, comprising:
1) The method comprises the steps of respectively weighing polycarbonate, a compound shown in a formula (I), a flame retardant, a heat-resistant modifier, a compatilizer, a light stabilizer and an antioxidant according to the weight percentage of claim 1;
2) Adding the components weighed in the steps into a high-speed mixer, closing a charging cover, starting the high-speed mixer, mixing for 15 minutes, adding into a double-screw extruder, controlling the rotating speed of the screw extruder to be 260-560rpm and the temperature to be 180-250 ℃, and performing melt extrusion granulation to obtain the product.
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| CN114262492A (en) * | 2021-12-30 | 2022-04-01 | 江苏松上科技有限公司 | Heat-resistant flame-retardant ABS material and production method thereof |
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- 2022-10-08 CN CN202211220474.8A patent/CN115612271B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1553938A (en) * | 2001-06-29 | 2004-12-08 | �������⻯ѧƷ�ع�����˾ | Fluorescent diketopyrrolopyrroles |
| WO2014101646A1 (en) * | 2012-12-25 | 2014-07-03 | 东莞市欣隆光电材料有限公司 | Heat conduction material co-extruded with optical diffusion material, and preparation method thereof |
| WO2017092069A1 (en) * | 2015-12-04 | 2017-06-08 | 五行材料科技（江苏）有限公司 | Flame retardant polycarbonate-reinforced high-modulus moulding composition |
| CN107974064A (en) * | 2016-10-25 | 2018-05-01 | 合肥杰事杰新材料股份有限公司 | A kind of high rigidity, heat-proof combustion-resistant PC/ABS alloy materials and preparation method thereof |
| CN114262492A (en) * | 2021-12-30 | 2022-04-01 | 江苏松上科技有限公司 | Heat-resistant flame-retardant ABS material and production method thereof |
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