Modified color master batch and preparation method thereof

Abstract

The invention relates to a modified color master batch, the modified color master batch and carrier resin are used as main components of the modified color master batch, and the carrier resin is good in oxidation resistance and thermal stability. The filler can enhance the structural strength and structural stability of the modified color master batch. And the flexibility and the deflection of the modified color master batch are improved by the plasticizer. And the antioxidant can increase the oxidation resistance of the modified color master batch. And the light stabilizer can improve the weather resistance and illumination resistance of the modified color master batch. And the dispersing agent and the slipping agent can improve the mixing uniformity of the components in the modified color master batch. And the coupling agent can improve the combination stability among the components in the modified color master batch. The heat stabilizer can increase the high temperature resistance of the modified color master batch. And the antistatic agent can improve the antistatic performance of the modified color master batch. And the flame retardant can increase the flame retardant property of the modified color master batch. The modified color master batch is excellent in oxidation resistance and not prone to oxidation discoloration, and long-time gloss can be guaranteed.

Description

Technical Field

[0001] The present invention relates to the field of coatings, and particularly to a modified masterbatch and a method for producing the same. Background Art

[0002] The full name of the masterbatch is plastic masterbatch. The masterbatch is a plastic processing aid developed in the 1980s. It is composed of an excessive amount of chemical additives, carrier resin, dispersant, etc. The masterbatch is an aggregate obtained by uniformly attaching an excessive amount of pigments to the resin. The masterbatch refers to, during the plastic processing and molding process, for the convenience of operation, various additives, fillers required and a small amount of carrier resin are first mixed and kneaded, and then processed through equipment such as an extruder for metering, mixing, melting, extruding, pelletizing, etc. to obtain pellet materials, which are called masterbatches. The masterbatch is composed of carrier resin, various fillers and various additives. The limit of additives or the content of fillers in the masterbatch is several times to more than ten times the required amount in the actual plastic products. During the molding process, it is necessary to adjust the ratio of the masterbatch to the matrix resin according to the content of the relevant components in the masterbatch and the amount to be added in the actual product. Masterbatches can usually be divided into ordinary filled masterbatches and functional masterbatches, such as color masterbatches, anti-fogging masterbatches, etc.

[0003] However, for traditional colored masterbatches, such as the technical solution disclosed in the patent with the application number CN201210079839.X and the invention name of a color masterbatch. The products produced and prepared have poor antioxidant performance, are prone to oxidation and discoloration, and lose their luster. Summary of the Invention

[0004] Based on this, in view of the technical problem that the products produced and prepared from traditional colored masterbatches have poor antioxidant performance, are prone to oxidation and discoloration, and lose their luster, it is necessary to provide a modified masterbatch.

[0005] A modified masterbatch, comprising the following components in parts by mass: 50 to 70 parts of carrier resin, 10 to 20 parts of filler, 1 to 4 parts of plasticizer, 1 to 2 parts of antioxidant, 0.2 to 1 part of light stabilizer, 3 to 7 parts of pigment, 2 to 5 parts of dispersant, 0.3 to 0.7 part of slip agent, 2 to 4 parts of coupling agent, 1 to 5 parts of heat stabilizer, 1 to 2 parts of antistatic agent, and 1 to 3 parts of flame retardant.

[0006] In one embodiment, the carrier resin comprises the following components in parts by mass: 5 to 20 parts of ethylene-acrylic acid copolymer, 10 to 30 parts of polycarbonate, 10 to 30 parts of polyethylene, 8 to 16 parts of polypropylene, 12 to 22 parts of glycerol monostearate, and 14 to 18 parts of polypropylene wax.

[0007] In one embodiment, the filler comprises the following components in parts by mass: 5 to 20 parts of kaolin, 10 to 30 parts of silicon nitride, 10 to 30 parts of nano calcium carbonate, 20 to 40 parts of nano barium sulfate, and 5 to 20 parts of nano silicon dioxide.

[0008] In one embodiment, the heat stabilizer comprises the following components in parts by mass: 14 to 30 parts of dilauryl thiodipropionate, 12 to 20 parts of distearyl thiodipropionate, 8 to 16 parts of tris(nonylphenyl) phosphite, and 20 to 40 parts of distearyl pentaerythritol diphosphite.

[0009] In one embodiment, the dispersant comprises 8 to 22 parts of maleic anhydride grafted polyethylene wax, 6 to 10 parts of polyamide wax, 12 to 24 parts of silicone resin, 6 to 16 parts of silicone oil, 10 to 30 parts of vinyl silane, and 12 to 22 parts of calcium stearate.

[0010] In one embodiment, the flame retardant is a phosphate ester.

[0011] In one embodiment, the slip agent is a mixture of ethylene bisstearamide and pentaerythritol tetrastearate.

[0012] In one embodiment, the light stabilizer is a hindered amine stabilizer.

[0013] In one embodiment, the antistatic agent is a mixture of glycerol monostearate and ethoxylated lauric acid.

[0014] In one embodiment, the plasticizer is tributyl phosphate.

[0015] In the above modified masterbatch, the carrier resin is the main component of the modified masterbatch, and the carrier resin has good antioxidant performance and good thermal stability. The filler can increase the structural strength and structural stability of the modified masterbatch. The plasticizer increases the flexibility and flexural properties of the modified masterbatch. The antioxidant can increase the antioxidant performance of the modified masterbatch. The light stabilizer can increase the weather resistance and light resistance of the modified masterbatch. The dispersant and slip agent can increase the mixing uniformity of the components in the modified masterbatch. The coupling agent can increase the binding stability between the components in the modified masterbatch. The heat stabilizer can increase the high temperature resistance of the modified masterbatch. The antistatic agent can increase the antistatic performance of the modified masterbatch. The flame retardant can increase the flame retardant performance of the modified masterbatch. The above modified masterbatch has excellent antioxidant performance and is not easily oxidized and discolored, which can ensure long-term gloss. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a component diagram of the modified masterbatch in one embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0017] In order to make the above objects, features and advantages of the present invention more obvious and understandable, the following detailed description of the specific embodiments of the present invention will be given in conjunction with the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below. In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0018] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0019] In the present invention, unless otherwise clearly defined and limited, the terms "mounted", "connected", "connected to", "fixed" and other terms should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] In the present invention, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "under" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0021] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there may be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation.

[0022] Please refer to Figure 1 , this application provides a modified masterbatch, which includes the following components in parts by mass: 50 to 70 parts of carrier resin, 10 to 20 parts of filler, 1 to 4 parts of plasticizer, 1 to 2 parts of antioxidant, 0.2 to 1 part of light stabilizer, 3 to 7 parts of pigment, 2 to 5 parts of dispersant, 0.3 to 0.7 part of slip agent, 2 to 4 parts of coupling agent, 1 to 5 parts of heat stabilizer, 1 to 2 parts of antistatic agent, and 1 to 3 parts of flame retardant. In another embodiment, the modified masterbatch includes the following components in parts by mass: 55 to 65 parts of carrier resin, 12 to 18 parts of filler, 2 to 3 parts of plasticizer, 1.2 to 1.8 parts of antioxidant, 0.3 to 0.8 part of light stabilizer, 4 to 6 parts of pigment, 3 to 4 parts of dispersant, 0.4 to 0.6 part of slip agent, 2.5 to 3.5 parts of coupling agent, 2 to 4 parts of heat stabilizer, 1.2 to 1.8 parts of antistatic agent, and 1.5 to 2.5 parts of flame retardant. Specifically, in this embodiment, there are 63 parts of carrier resin, 17 parts of filler, 2.5 parts of plasticizer, 1.5 parts of antioxidant, 0.5 part of light stabilizer, 5 parts of pigment, 3.5 parts of dispersant, 0.5 part of slip agent, 3 parts of coupling agent, 3 parts of heat stabilizer, 1.5 parts of antistatic agent, and 2 parts of flame retardant.

[0023] In order to improve the antioxidant performance of the carrier resin, in one of the embodiments, the carrier resin includes the following components in parts by mass: 5 to 20 parts of ethylene-acrylic acid copolymer, 10 to 30 parts of polycarbonate, 10 to 30 parts of polyethylene, 8 to 16 parts of polypropylene, 12 to 22 parts of glycerol monostearate, and 14 to 18 parts of polypropylene wax. The carrier resin composed of the above components has excellent antioxidant performance and weather resistance, thereby improving the antioxidant performance of the modified masterbatch.

[0024] To improve the structural strength and stability of the modified masterbatch, in one embodiment, the filler comprises the following components in parts by mass: 5 to 20 parts of kaolin, 10 to 30 parts of silicon nitride, 10 to 30 parts of nano calcium carbonate, 20 to 40 parts of nano barium sulfate, and 5 to 20 parts of nano silicon dioxide. The filler composed of the above components has stable chemical properties and excellent high-temperature resistance, and can improve the structural strength and stability of the modified masterbatch.

[0025] To improve the thermal stability of the modified masterbatch, in one embodiment, the heat stabilizer comprises the following components in parts by mass: 14 to 30 parts of dilauryl thiodipropionate, 12 to 20 parts of distearyl thiodipropionate, 8 to 16 parts of tris(nonylphenyl) phosphite, and 20 to 40 parts of distearyl pentaerythritol diphosphite. The heat stabilizer composed of the above components can improve the thermal stability of the modified masterbatch.

[0026] To improve the mixing uniformity among the components of the modified masterbatch, in one embodiment, the dispersant comprises 8 to 22 parts of maleic anhydride grafted polyethylene wax, 6 to 10 parts of polyamide wax, 12 to 24 parts of silicone resin, 6 to 16 parts of silicone oil, 10 to 30 parts of vinyl silane, and 12 to 22 parts of calcium stearate. In one embodiment, the slip agent is a mixture of ethylene bisstearamide and pentaerythritol tetrastearate. Thus, the dispersant and slip agent composed of the above components can improve the mixing uniformity among the components of the modified masterbatch, thereby improving the stability of the modified masterbatch.

[0027] To improve the high-temperature resistance and flame retardancy of the modified masterbatch, in one embodiment, the flame retardant is phosphate ester. Phosphate ester has good wettability, stable chemical properties, and excellent high-temperature resistance and flame retardancy. Thus, it can improve the high-temperature resistance and flame retardancy of the modified masterbatch.

[0028] To improve the antistatic property of the modified masterbatch, in one embodiment, the antistatic agent is a mixture of glycerol monostearate and ethoxylated lauric acid. Glycerol monostearate and ethoxylated lauric acid have good antistatic properties and can improve the antistatic property of the modified masterbatch.

[0029] To improve the binding stability among the components of the modified masterbatch, the coupling agent is a silane coupling agent. Specifically, the silane coupling agent is a mixture of vinyl silane and amino silane. The silane coupling agent can improve the binding stability among the components of the modified masterbatch, thereby improving the stability of the modified masterbatch.

[0030] The above-mentioned modified masterbatch, with the carrier resin as the main component of the modified masterbatch, has good antioxidant performance and good thermal stability. The filler can increase the structural strength and structural stability of the modified masterbatch. The plasticizer increases the flexibility and flexural properties of the modified masterbatch. In this embodiment, the plasticizer is tributyl phosphate. The antioxidant can increase the antioxidant performance of the modified masterbatch. The light stabilizer can increase the weather resistance and light resistance of the modified masterbatch. In this embodiment, the light stabilizer is a hindered amine stabilizer. The dispersant and the slip agent can increase the mixing uniformity of each component in the modified masterbatch. The coupling agent can increase the binding stability between each component in the modified masterbatch. The heat stabilizer can increase the high-temperature resistance of the modified masterbatch. The antistatic agent can increase the antistatic performance of the modified masterbatch. The flame retardant can increase the flame retardant performance of the modified masterbatch. In this embodiment, the color powder is titanium dioxide or carbon black. The above-mentioned modified masterbatch has excellent antioxidant performance and is not easily oxidized and discolored, which can ensure long-term gloss.

[0031] 1000 parts of the above-mentioned modified masterbatch are used, with a size of 0.2 cubic centimeters. Performance tests are carried out, and the average test results are shown in the following table:

[0032] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0033] The above-described embodiments only represent several implementation manners of the present invention. The description is relatively specific and detailed, but it cannot be construed as a limitation on the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the appended claims.

Claims

1. A modified masterbatch, characterized in that: The invention comprises the following components in parts by mass: 50 to 70 parts of carrier resin, 10 to 20 parts of filler, 1 to 4 parts of plasticizer, 1 to 2 parts of antioxidant, 0.2 to 1 parts of light stabilizer, 3 to 7 parts of pigment, 2 to 5 parts of dispersant, 0.3 to 0.7 parts of lubricant, 2 to 4 parts of coupling agent, 1 to 5 parts of heat stabilizer, 1 to 2 parts of antistatic agent and 1 to 3 parts of flame retardant.

2. The modified masterbatch according to claim 1, characterized in that: The carrier resin includes the following components in parts by mass: 5 to 20 parts of ethylene-acrylic acid copolymer, 10 to 30 parts of polycarbonate, 10 to 30 parts of polyethylene, 8 to 16 parts of polypropylene, 12 to 22 parts of glycerol monostearate and 14 to 18 parts of polypropylene wax.

3. The modified masterbatch according to claim 2, characterized in that: The filler comprises the following components in parts by weight: 5 to 20 parts of kaolin, 10 to 30 parts of silicon nitride, 10 to 30 parts of nano calcium carbonate, 20 to 40 parts of nano barium sulfate and 5 to 20 parts of nano silicon dioxide.

4. The modified masterbatch according to claim 1, characterized in that: The heat stabilizer includes the following components in parts by weight: 14 to 30 parts of dilauryl thiodipropionate, 12 to 20 parts of distearyl thiodipropionate, 8 to 16 parts of tris(nonylphenyl)phosphite and 20 to 40 parts of dioctadecyl pentaerythritol diphosphite.

5. The modified masterbatch according to claim 1, characterized in that: The dispersant includes 8 to 22 parts of maleic anhydride grafted polyethylene wax, 6 to 10 parts of polyamide wax, 12 to 24 parts of silicone resin, 6 to 16 parts of silicone oil, 10 to 30 parts of vinyl silane and 12 to 22 parts of calcium stearate.

6. The modified masterbatch according to claim 1, characterized in that: The flame retardant is phosphate ester.

7. The modified masterbatch according to claim 1, characterized in that: The lubricant is a mixture of ethylene bis stearamide and pentaerythritol tetrastearate.

8. The modified masterbatch according to claim 1, characterized in that: The light stabilizer is a hindered amine stabilizer.

9. The modified masterbatch according to claim 1, characterized in that: The antistatic agent is a mixture of stearic acid glyceryl monoester and ethoxy lauric acid.

10. The modified masterbatch according to claim 1, characterized in that: The plasticizer is tributyl phosphate.

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