CN105924926A - Anti-aging infrared-penetrable novel composite material and preparation method thereof - Google Patents

Abstract

The invention relates to the technical field of resin composition preparation, in particular to an anti-aging infrared-penetrable novel composite material and a preparation method thereof, wherein the composite material comprises the following raw material components in parts by weight: 80-92 parts of PC resin, 0.2-8 parts of antioxidant, 0.2-2 parts of dispersant, 1-8 parts of ultraviolet-proof agent and 1-5 parts of toner. The novel anti-aging infrared-penetrable composite material prepared by the invention not only meets the requirement of environmental protection, but also has excellent infrared penetrating effect, high transparency, anti-aging performance and excellent injection molding processability, has wide application in the fields of security protection, induction, cameras and the like, can be applied to outdoor occasions, and can replace the general infrared-penetrable polycarbonate material in the market.

Description

A novel anti-aging and infrared-transmissive composite material and its preparation method

technical field

The invention relates to the technical field of resin composition preparation, in particular to a novel anti-aging composite material capable of infrared penetration and a preparation method thereof.

Background technique

Infrared-transparent materials allow infrared rays within a specific wavelength range to pass through without absorption and reflection. As a key material in infrared technology, infrared transparent materials are widely used in infrared remote control receivers, infrared sensors, glasses, night vision equipment, infrared rays, etc. Traditional infrared transmission materials are generally made of transparent materials such as PC, PMMA, MABS and PS. Although PC has high transparency and flame retardancy, it is easy to age. Although PMMA, MABS, and PS also have the advantages of high transparency and easy processing, these materials are prone to aging, which severely limits the use of these materials outdoors.

Gold hair patent CN103289293 and CN103289294 provides a transparent flame-retardant ABS material and a transparent flame-retardant antistatic material respectively. However, both materials are prone to aging and are not suitable for outdoor use. Therefore, there is an urgent need to develop an environmentally friendly, non-aging and infrared-transmissive composite material.

Contents of the invention

In view of the above-mentioned prior art, the technical problem to be solved by the present invention is to provide an anti-aging and infrared-transmissive novel composite material which is environmentally friendly, not easy to age, and capable of infrared penetration, and is suitable for outdoor use, and its preparation method. The object of the present invention is to provide a transparent composite material capable of infrared penetration and a preparation method thereof for the existing material whose infrared transmittance is not high, which is interfered by visible light, and outdoor equipment cannot work effectively. The light transmittance can reach 93%, which fully meets the requirements of environmental protection. It has good infrared penetration effect, high light transmittance and excellent injection molding performance; it is widely used in outdoor applications such as infrared remote controllers, infrared sensors, and cameras.

The present invention is achieved through the following technical solutions.

A novel anti-aging composite material capable of infrared penetration, comprising the following raw material components in parts by weight:

PC resin 80-92 parts;

Antioxidant 0.2-8 parts;

Dispersant 0.2-2 parts;

1-8 parts of anti-ultraviolet agent;

2-4 parts of toner.

The transparency of the material prepared by the present invention, the higher the transparency, the better the infrared penetration performance, and the antioxidant, dispersant, anti-ultraviolet agent and toner used in the present invention are all transparent small particle materials, which are resistant to light and radiation. The scattering and blocking effects of infrared rays are strong, and the prepared material has high transparency and good infrared penetration performance.

Preferably, an anti-aging and infrared-transmissive novel composite material includes the following raw material components in parts by weight:

PC resin 80-88 parts;

Antioxidant 0.5-7 parts;

Dispersant 0.4-1.6 parts;

2-7 parts of anti-ultraviolet agent;

2-5 parts of toner.

More preferably, an anti-aging and infrared-transmissive novel composite material includes the following raw material components in parts by weight:

PC resin 80-92 parts;

Antioxidant 0.2-8 parts;

Dispersant 0.2-2 parts;

1-8 parts of anti-ultraviolet agent;

1.2-5 parts of toner.

More preferably, a novel anti-aging and infrared-transmissive composite material includes the following raw material components in parts by weight:

PC resin 80-88 parts;

Antioxidant 0.5-7 parts;

Dispersant 0.4-1.6 parts;

2-7 parts of anti-ultraviolet agent;

1.5-5 parts of toner.

The toner is a dye of various colors; because the pigment is mixed in the medium in a physically dispersed manner, the dye is dissolved in the medium. Pigments are in the form of particles in the medium, while dyes are in the form of molecules. The way these toners exist in the plastic matrix directly affects the transparency and infrared transmittance of the material. Specifically, the toner includes BLUE One or more of RRFG, G green, 3G orange, 5B purple, H3G red, 136 yellow. Adjust the type and amount of toner according to the customer's color requirements.

Wherein, the melt index of the PC resin is 10-30g/10min, the notched impact strength is greater than 15KJ/M2, and the transparency is greater than 92. PC resin (polycarbonate), the grade of PC is 1250Y, and the manufacturer is Teijin of Japan. PC resin is a non-toxic and environmentally friendly material, which can be used to produce tableware, sanitary ware, etc., and has good chemical stability and weather resistance. It has the advantages of high transparency and easy processing, and its melt index is as high as 10-30 g/10min, the prepared material has high fluidity and good spray-free effect. In addition, the material has high strength and a transparency of more than 92, which ensures that the prepared composite material has high transparency and excellent injection molding performance. Widely used in infrared remote control receiving, infrared sensors, glasses, night vision equipment, infrared, etc.

Wherein, the antioxidant is a mixture of the main antioxidant and the auxiliary antioxidant in a mass percentage of 1:1, the main antioxidant is antioxidant 1010 or antioxidant 1076, and the auxiliary antioxidant is antioxidant 168 or Antioxidant 626. Bis(2,4-di-tert-butylphenyl)pentaerythritol diphosphite is referred to as antioxidant 626, which not only has a strong ability to decompose hydroperoxides, but also contains a high amount of available phosphorus, which is in line with the trend of high molecular weight antioxidants. Moreover, it has excellent effects in improving product processing stability, improving weather resistance, and imparting excellent color. In the present invention, the antioxidant prepared by using the primary antioxidant and the auxiliary antioxidant in a specific mass ratio can improve the oxidation resistance of the material without affecting the infrared penetration performance and laser engraving performance of the material, and the antioxidant effect is good. The processed performance of the prepared composite material is more excellent.

Wherein, the antioxidant is mixed by BASF IRGANOX1010 and IRGANOX168 in a ratio of 1:1 by weight. The antioxidant formulated from BASF IRGANOX1010 and IRGANOX168 can delay or inhibit the oxidation process of the present invention, thereby preventing the aging of the present invention and prolonging its service life.

Wherein, the dispersant adopts dispersant 5040.

Wherein, the anti-ultraviolet agent is a substance that can inhibit and delay the photoaging of polymers caused by ultraviolet rays.

A method for making an anti-aging and infrared-transmissible novel composite material, comprising the following steps:

Step (1): Accurately weigh the above-mentioned raw materials in proportion, put them into a high-speed mixer and stir them for 20-30 minutes to form a mixture, and the mixing speed of the materials is 190-230 rpm;

Step (2): Add the mixture into the twin-screw extruder, and after melting, extruding, granulating and drying, the finished product is obtained; the extruder includes nine processing areas, and the processing of each processing area The temperature is 180-200°C, the vacuum degree of the extruder is ≥ 0.09MPa, the aspect ratio of the extruder is 30-38, and the screw speed of the extruder is 320-580 rpm;

Step (3): Cut into granules by high-speed granulator and pack.

Compared with the prior art, the present invention adds antioxidants, dispersants, anti-ultraviolet agents, etc. by weight on the basis of PC resin substrates, and after thorough mixing, it is added to a twin-screw extruder and extruded through a die. Thus, the aging-resistant and infrared-transmissive novel composite material is formed. The invention is environmentally friendly, not easy to age, can penetrate infrared light, and is suitable for outdoor use.

Description of drawings

Fig. 1 is the performance test table of embodiment 1-4 of the present invention.

detailed description

The present invention will be further described below in conjunction with specific examples.

Example 1:

With the PC resin of 82.0 parts by weight, the antioxidant of 5.8 parts by weight, the dispersant of 2.1 parts by weight, the anti-ultraviolet agent of 5.7 parts by weight, the toner of 4.4 parts by weight, in high-speed mixer, above-mentioned component is at room temperature Mix well, then produce in twin-screw extruder. Processing conditions: material mixing speed: 190 rpm; temperature in zone 1: 180°C, temperature in zone 2: 185°C, temperature in zone 3: 190°C, temperature in zone 4: 195°C, temperature in zone 5: 200°C, temperature in zone 6: Zone temperature: 200°C, Zone 7 temperature: 195°C, Zone 8 temperature: 195°C, Zone 9 temperature: 200°C, screw speed: 400 rpm, vacuum degree of the extruder is 0.09MPa, length of the extruder The diameter ratio is 30.

Wherein, the melt index of the PC resin is 12g/10min, the notched impact strength is 19KJ/M2, and the transparency is 95; the antioxidant is mixed by BASF IRGANOX1010 and IRGANOX168 in a ratio of 1:1 by weight. The dispersant uses dispersant 5040. The anti-ultraviolet agent is a substance that can inhibit and delay the photoaging of polymers caused by ultraviolet rays. The toner is red. The grade of PC resin (polycarbonate) is 1250Y, and the manufacturer is Teijin of Japan.

Example 2:

With the PC resin of 86.0 parts by weight, the antioxidant of 5.4 parts by weight, the dispersing agent of 1.7 parts by weight, the antiultraviolet agent of 4.9 parts by weight, the toner of 2.0 parts by weight, in the high-speed mixer, above-mentioned component is at room temperature Mix well, then produce in twin-screw extruder. Processing conditions: material mixing speed: 210 rpm; temperature in zone 1: 180°C, temperature in zone 2: 190°C, temperature in zone 3: 190°C, temperature in zone 4: 195°C, temperature in zone 5: 200°C, temperature in zone 6: Zone temperature: 200°C, Zone 7 temperature: 195°C, Zone 8 temperature: 195°C, Zone 9 temperature: 200°C, screw speed: 400 rpm, vacuum degree of the extruder is 0.11MPa, length of the extruder The diameter ratio is 34.

Wherein, the melt index of the PC resin is 12g/10min, the notched impact strength is 19KJ/M ² , and the transparency is 95; the antioxidant is mixed by BASF IRGANOX1010 and IRGANOX168 in a weight ratio of 1:1. The dispersant uses dispersant 5040. The anti-ultraviolet agent is a substance that can inhibit and delay the photoaging of polymers caused by ultraviolet rays. The toner is purple. The grade of PC resin (polycarbonate) is 1250Y, and the manufacturer is Teijin of Japan.

Example 3.

With the PC resin of 87.2 parts by weight, the antioxidant of 4.7 parts by weight, the dispersant of 1.5 parts by weight, the anti-ultraviolet agent of 4.3 parts by weight, the toner of 2.5 parts by weight, in the high-speed mixer, above-mentioned component is at room temperature Mix well, then produce in twin-screw extruder. Processing conditions: material mixing speed: 220 rpm; temperature in zone 1: 180°C, temperature in zone 2: 190°C, temperature in zone 3: 195°C, temperature in zone 4: 195°C, temperature in zone 5: 200°C, temperature in zone 6: Zone temperature: 200°C, Zone 7 temperature: 195°C, Zone 8 temperature: 195°C, Zone 9 temperature: 200°C, screw speed: 500 rpm, vacuum degree of the extruder is 0.1MPa, length of the extruder The diameter ratio is 36.

Wherein, the melt index of the PC resin is 12g/10min, the notched impact strength is 19KJ/M ² , and the transparency is 93; the antioxidant is mixed by BASF IRGANOX1010 and IRGANOX168 in a weight ratio of 1:1. The dispersant uses dispersant 5040. The anti-ultraviolet agent is a substance that can inhibit and delay the photoaging of polymers caused by ultraviolet rays. The toner is black. The grade of PC resin (polycarbonate) is 1250Y, and the manufacturer is Teijin of Japan.

Example 4.

With the PC resin of 90.0 parts by weight, the antioxidant of 4.0 parts by weight, the dispersant of 1.0 parts by weight, the anti-ultraviolet agent of 3.8 parts by weight, the toner of 1.2 parts by weight, in the high-speed mixer, above-mentioned component is at room temperature Mix well, then produce in twin-screw extruder. Processing conditions: material mixing speed: 230 rpm; temperature in zone 1: 180°C, temperature in zone 2: 185°C, temperature in zone 3: 190°C, temperature in zone 4: 195°C, temperature in zone 5: 200°C, temperature in zone 6: Zone temperature: 200°C, Zone 7 temperature: 195°C, Zone 8 temperature: 195°C, Zone 9 temperature: 200°C, screw speed: 550 rpm, vacuum degree of the extruder is 0.12MPa, length of the extruder The diameter ratio is 38.

Wherein, the melt index of the PC resin is 12g/10min, the notched impact strength is 19KJ/M2, and the transparency is 93; the antioxidant is mixed by BASF IRGANOX1010 and IRGANOX168 in a ratio of 1:1 by weight. The dispersant uses dispersant 5040. The anti-ultraviolet agent is a substance that can inhibit and delay the photoaging of polymers caused by ultraviolet rays. The toner is black. The grade of PC resin (polycarbonate) is 1250Y, and the manufacturer is Teijin of Japan.

The performance test table of Examples 1-4 is shown in FIG. 1 . As can be seen from above Fig. 1, the transparency of the composite material that the present invention makes is as high as 93-95%, and the composite material not only has high transparency, but also has high infrared transmittance and low aging rate. The infrared transmittance is 85-88%, and the aging rate is <3%. In addition, the addition of antioxidants and anti-ultraviolet agents has little effect on the mechanical properties of the transparent composite material with infrared penetration function, and mainly improves its anti-aging and hair-resisting properties.

The overall creative concept of the present invention enables the present invention to overcome the disadvantages of the prior art that the infrared penetrating material is easy to age and is not suitable for outdoor use, and achieve the purpose and effect expected in the foregoing description.

The advantage of the present invention is that the present invention adds anti-oxidant, dispersant, anti-ultraviolet agent etc. by weight ratio on the basis of PC resin substrate, carries out thorough mixing and joins in the twin-screw extruder and extrudes through die, by This forms the anti-aging and infrared-transmissive novel composite material. The invention is environmentally friendly, not easy to age, can penetrate infrared light, and is suitable for outdoor use.

The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be assumed that the specific implementation of the present invention is limited to these descriptions. For those of ordinary skill in the technical field of the present invention, without departing from the concept of the present invention, some simple deduction or replacement can be made, which should be regarded as belonging to the protection scope of the present invention.

Claims (6)

1. the anti-aging advanced composite material (ACM) that can infrared penetrate, it is characterised in that: include the material component of following weight portion :

PC resin 80-92 part;

Antioxidant 0.2-8 part;

Dispersant 0.2-2 part;

Ultraviolet screener 1-8 part;

Toner 1-5 part.

The anti-aging advanced composite material (ACM) that can infrared penetrate the most according to claim 1, it is characterised in that: the melt index of described PC resin is 10-30g/10min, and notch impact strength is more than 15KJ/M², transparency is more than 92.

The anti-aging advanced composite material (ACM) that can infrared penetrate the most according to claim 1, it is characterized in that: the mixture that described antioxidant is primary antioxidant and auxiliary anti-oxidant is 1:1 by mass percentage, primary antioxidant is antioxidant 1010 or antioxidant 1076, and auxiliary antioxidant is irgasfos 168 or antioxidant 626.

The anti-aging advanced composite material (ACM) that can infrared penetrate the most according to claim 1, it is characterised in that: described antioxidant is mixed by weight the ratio of 1:1 by BASF IRGANOX1010 and IRGANOX168.

The anti-aging advanced composite material (ACM) that can infrared penetrate the most according to claim 1, it is characterised in that: described dispersant uses dispersant 5040.

6. according to the preparation method of a kind of anti-aging advanced composite material (ACM) that can infrared penetrate according to any one of claim 1-5, it is characterised in that: comprise the following steps:

Step (1): by above-mentioned raw material precise in proportion, and put it into high-speed mixer is sufficiently stirred for 20-30 minute formed compound, rotating speed puddled by material is that 190-230 turns/min;

Step (2): add mixture in double screw extruder, through melted, extrusion, granulation and dried, gets product;Wherein, extruder includes nine processing districts, and the processing temperature of each processing district is 180-200 DEG C, the vacuum >=0.09MPa of extruder, and the draw ratio of extruder is 30-38, and the screw speed of extruder is 320-580 rev/min;

Step (3): be cut into grain, packaging by high speed pelleter.