High-heat-resistant flame-retardant ABS modifier as well as preparation method and application thereof

Abstract

The invention discloses a high-heat-resistance flame-retardant ABS (acrylonitrile-butadiene-styrene) modifier as well as a preparation method and application thereof. The high-heat-resistance flame-retardant ABS modifier is prepared from the following raw materials in parts by weight: 60 to 80 parts of polyvinyl chloride, 10 to 20 parts of talcum powder, 5 to 10 parts of nano silicon dioxide, 5 to 10 parts of zirconium oxide, 4 to 8 parts of graphite powder, 10 to 20 parts of N-cyclohexylmaleimide, 15 to 25 parts of decabromodiphenyl ethane, 1 to 2 parts of antioxidant, 1 to 2 parts of light stabilizer, 2 to 4 parts of silane coupling agent and 4 to 8 parts of calcium stearate. According to the high-heat-resistance flame-retardant ABS modifier disclosed by the invention, the heat resistance and the flame retardance of the prepared ABS resin can be remarkably improved under the combined action of the raw materials by limiting the types and the use amounts of the raw materials, so that the application field of the ABS resin material can be better expanded.

Description

Technical Field

[0001] The invention relates to the technical field of ABS modifiers, and in particular to a highly heat-resistant and flame-retardant ABS modifier and a preparation method and application thereof. Background Art

[0002] ABS plastic is a ternary copolymer of acrylonitrile (A), butadiene (B), and styrene (S). The relative content of the three monomers can be changed arbitrarily to make various resins. ABS plastic has the common properties of the three components. A makes it resistant to chemical corrosion and heat, and has a certain surface hardness, B makes it highly elastic and tough, and S makes it have the processing and molding characteristics of thermoplastics and improves electrical properties. Therefore, ABS plastic is a "tough, hard, and rigid" material with easy-to-obtain raw materials, good comprehensive properties, low price, and a wide range of uses.

[0003] However, the oxygen index of ABS resin is only 18, which is a flammable material. On the other hand, the heat resistance of ABS resin itself is not high, and the general heat deformation temperature is 82-84℃ (ASTM D648, 1.82MPa). Therefore, when used in electronic and electrical equipment, most of them need to be flame-retardant and heat-resistant modified to meet the safety and fire protection requirements.

[0004] In view of this, the present invention is proposed. Summary of the invention

[0005] The purpose of the present invention is to provide a high heat-resistant flame-retardant ABS modifier and a preparation method and application thereof. The high heat-resistant flame-retardant ABS modifier of the present invention can improve the flame retardancy and heat resistance of ABS resin, thereby better improving the application field of ABS resin materials.

[0006] In order to achieve the above-mentioned purpose of the present invention, the following technical solutions are particularly adopted:

[0007] The first aspect of the present invention provides a high heat-resistant flame-retardant ABS modifier, which comprises the following raw materials in parts by weight:

[0008] 60-80 parts of polyvinyl chloride, 10-20 parts of talc, 5-10 parts of nano-silicon dioxide, 5-10 parts of zirconium oxide, 4-8 parts of graphite powder, 10-20 parts of N-cyclohexylmaleimide, 15-25 parts of decabromodiphenylethane, 1-2 parts of antioxidant, 1-2 parts of light stabilizer, 2-4 parts of silane coupling agent and 4-8 parts of calcium stearate.

[0009] Preferably, the high heat-resistant flame-retardant ABS modifier comprises the following raw materials in parts by weight:

[0010] 70 parts of polyvinyl chloride, 15 parts of talc, 8 parts of nano silicon dioxide, 8 parts of zirconium oxide, 6 parts of graphite powder, 15 parts of N-cyclohexylmaleimide, 20 parts of decabromodiphenylethane, 2 parts of antioxidant, 1 part of light stabilizer, 3 parts of silane coupling agent and 6 parts of calcium stearate.

[0011] Preferably, the antioxidant is n-octadecyl β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate or pentaerythritol tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate.

[0012] Preferably, the light stabilizer is a hindered amine light stabilizer.

[0013] The second aspect of the present invention provides a method for preparing the above-mentioned high heat-resistant flame-retardant ABS modifier, the preparation method comprising the following steps:

[0014] (a) weighing each raw material according to weight;

[0015] (b) melt-blending the raw materials and extruding and granulating them to obtain the high heat-resistant and flame-retardant ABS modifier.

[0016] Preferably, the melt blending temperature is 180-190°C.

[0017] A third aspect of the present invention provides a high heat-resistant flame-retardant ABS composite material, wherein the high heat-resistant flame-retardant ABS composite material comprises ABS resin and the high heat-resistant flame-retardant ABS modifier.

[0018] Preferably, the content of the high heat-resistant flame-retardant ABS modifier in the high heat-resistant flame-retardant ABS composite material is 40% to 50%.

[0019] Preferably, the high heat-resistant and flame-retardant ABS composite material is prepared by melt-blending and extruding granulation of ABS resin and a high heat-resistant and flame-retardant ABS modifier.

[0020] Compared with the prior art, the beneficial effects of the present invention include at least:

[0021] The high heat-resistant flame-retardant ABS modifier of the present invention can significantly improve the heat resistance and flame retardancy of the prepared ABS resin by limiting the types and amounts of various raw materials under the joint action of various raw materials. Specifically, the heat resistance of ABS is synergistically improved by polyvinyl chloride, N-cyclohexylmaleimide and inorganic filler, and the inorganic filler can also improve the flame retardancy of the material. With the addition of decabromodiphenylethane, an excellent flame retardancy effect is achieved. In addition, the addition of silane coupling agent and calcium stearate can improve the dispersibility of various raw materials and further improve the overall effect. Then, antioxidants and light stabilizers are used to improve the anti-oxidation and light stability of the material. Under the joint action of various raw materials, the ABS resin material has more excellent performance, thereby being able to better improve the application field of the ABS resin material. DETAILED DESCRIPTION

[0022] The following embodiments of the technical solution of the present invention are described in detail in conjunction with the embodiments. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and are therefore only used as examples, and cannot be used to limit the protection scope of the present invention.

[0023] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by those skilled in the art to which the invention belongs.

[0024] The embodiment of the present invention provides a high heat-resistant flame-retardant ABS modifier, and the high heat-resistant flame-retardant ABS modifier comprises the following raw materials in parts by weight:

[0025] 60-80 parts of polyvinyl chloride, 10-20 parts of talc, 5-10 parts of nano-silicon dioxide, 5-10 parts of zirconium oxide, 4-8 parts of graphite powder, 10-20 parts of N-cyclohexylmaleimide, 15-25 parts of decabromodiphenylethane, 1-2 parts of antioxidant, 1-2 parts of light stabilizer, 2-4 parts of silane coupling agent and 4-8 parts of calcium stearate.

[0026] The high heat-resistant flame-retardant ABS modifier of the present invention can significantly improve the heat resistance and flame retardancy of the prepared ABS resin by limiting the types and amounts of various raw materials under the joint action of various raw materials. Specifically, the heat resistance of ABS is synergistically improved by polyvinyl chloride, N-cyclohexylmaleimide and inorganic filler, and the inorganic filler can also improve the flame retardancy of the material. With the addition of decabromodiphenylethane, an excellent flame retardancy effect is achieved. In addition, the addition of silane coupling agent and calcium stearate can improve the dispersibility of various raw materials and further improve the overall effect. Then, antioxidants and light stabilizers are used to improve the anti-oxidation and light stability of the material. Under the joint action of various raw materials, the ABS resin material has more excellent performance, thereby being able to better improve the application field of the ABS resin material.

[0027] In one embodiment, the high heat-resistant flame-retardant ABS modifier comprises the following raw materials in parts by weight:

[0028] 70 parts of polyvinyl chloride, 15 parts of talc, 8 parts of nano silicon dioxide, 8 parts of zirconium oxide, 6 parts of graphite powder, 15 parts of N-cyclohexylmaleimide, 20 parts of decabromodiphenylethane, 2 parts of antioxidant, 1 part of light stabilizer, 3 parts of silane coupling agent and 6 parts of calcium stearate.

[0029] In one embodiment, the antioxidant is n-octadecyl β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate or pentaerythritol tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate.

[0030] In one embodiment, the light stabilizer is a hindered amine light stabilizer.

[0031] Another embodiment of the present invention provides a method for preparing the above-mentioned high heat-resistant flame-retardant ABS modifier, the preparation method comprising the following steps:

[0032] (a) weighing each raw material according to weight;

[0033] (b) melt-blending the raw materials and extruding and granulating them to obtain the high heat-resistant and flame-retardant ABS modifier.

[0034] In one embodiment, the melt blending temperature is 180-190°C.

[0035] Another embodiment of the present invention provides a high heat-resistant and flame-retardant ABS composite material, wherein the high heat-resistant and flame-retardant ABS composite material includes ABS resin and the high heat-resistant and flame-retardant ABS modifier.

[0036] In one embodiment, the content of the high heat-resistant flame-retardant ABS modifier in the high heat-resistant flame-retardant ABS composite material is 40% to 50%.

[0037] In one embodiment, the high heat-resistant and flame-retardant ABS composite material is prepared by melt-blending and extruding granulation of ABS resin and a high heat-resistant and flame-retardant ABS modifier.

[0038] The technical solution of the present invention is further described in detail below through specific embodiments.

[0039] The raw materials used in the following examples are as follows:

[0040] The antioxidant is β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate;

[0041] The light stabilizer is a hindered amine light stabilizer;

[0042] The silane coupling agent is silane coupling agent kh560.

[0043] Example 1

[0044] This embodiment is a high heat-resistant flame-retardant ABS modifier, which includes the following raw materials in parts by weight:

[0045] 60 parts of polyvinyl chloride, 10 parts of talc, 10 parts of nano silicon dioxide, 5 parts of zirconium oxide, 4 parts of graphite powder, 20 parts of N-cyclohexylmaleimide, 15 parts of decabromodiphenylethane, 1 part of antioxidant, 2 parts of light stabilizer, 2 parts of silane coupling agent and 8 parts of calcium stearate.

[0046] The preparation method of the above-mentioned high heat-resistant flame-retardant ABS modifier comprises the following steps:

[0047] (a) weighing each raw material according to weight;

[0048] (b) melt-blending the raw materials at 180° C. and extruding and granulating them to obtain the high heat-resistant and flame-retardant ABS modifier.

[0049] Example 2

[0050] This embodiment is a high heat-resistant flame-retardant ABS modifier, which includes the following raw materials in parts by weight:

[0051] 80 parts of polyvinyl chloride, 20 parts of talc, 5 parts of nano silicon dioxide, 10 parts of zirconium oxide, 8 parts of graphite powder, 10 parts of N-cyclohexylmaleimide, 25 parts of decabromodiphenylethane, 2 parts of antioxidant, 1 part of light stabilizer, 4 parts of silane coupling agent and 4 parts of calcium stearate.

[0052] The preparation method of the above-mentioned high heat-resistant flame-retardant ABS modifier comprises the following steps:

[0053] (a) weighing each raw material according to weight;

[0054] (b) melt-blending the raw materials at 190° C. and extruding and granulating them to obtain the high heat-resistant and flame-retardant ABS modifier.

[0055] Example 3

[0056] This embodiment is a high heat-resistant flame-retardant ABS modifier, which includes the following raw materials in parts by weight:

[0057] 70 parts of polyvinyl chloride, 15 parts of talc, 8 parts of nano silicon dioxide, 8 parts of zirconium oxide, 6 parts of graphite powder, 15 parts of N-cyclohexylmaleimide, 20 parts of decabromodiphenylethane, 2 parts of antioxidant, 1 part of light stabilizer, 3 parts of silane coupling agent and 6 parts of calcium stearate.

[0058] The preparation method of the above-mentioned high heat-resistant flame-retardant ABS modifier comprises the following steps:

[0059] (a) weighing each raw material according to weight;

[0060] (b) melt-blending the raw materials at 185° C. and extruding and granulating them to obtain the high heat-resistant and flame-retardant ABS modifier.

[0061] Example 4

[0062] This embodiment is a high heat-resistant flame-retardant ABS composite material, which includes ABS resin and the high heat-resistant flame-retardant ABS modifier of embodiment 1;

[0063] The content of the high heat-resistant flame-retardant ABS modifier in the high heat-resistant flame-retardant ABS composite material is 50%.

[0064] The high heat-resistant and flame-retardant ABS composite material is prepared by melt-blending and extruding granulation of ABS resin and a high heat-resistant and flame-retardant ABS modifier.

[0065] Example 5

[0066] This embodiment is a high heat-resistant flame-retardant ABS composite material, which includes ABS resin and the high heat-resistant flame-retardant ABS modifier of embodiment 2;

[0067] The content of the high heat-resistant flame-retardant ABS modifier in the high heat-resistant flame-retardant ABS composite material is 40%.

[0068] The high heat-resistant and flame-retardant ABS composite material is prepared by melt-blending and extruding granulation of ABS resin and a high heat-resistant and flame-retardant ABS modifier.

[0069] Example 6

[0070] This embodiment is a high heat-resistant flame-retardant ABS composite material, which includes ABS resin and the high heat-resistant flame-retardant ABS modifier of embodiment 3;

[0071] The content of the high heat-resistant flame-retardant ABS modifier in the high heat-resistant flame-retardant ABS composite material is 45%.

[0072] The high heat-resistant and flame-retardant ABS composite material is prepared by melt-blending and extruding granulation of ABS resin and a high heat-resistant and flame-retardant ABS modifier.

[0073] Experimental example

[0074] Obtain the high heat-resistant and flame-retardant ABS composite material prepared in Example 6;

[0075] The flammability and heat deformation temperature of the above-mentioned high heat-resistant flame-retardant ABS composite material were tested, and the test results are shown in Table 1:

[0076] Table 1

[0077] project standard Example 6 combustion UL94, 3.2mm V-0 Heat Deflection Temperature ASTM D648, 1.82MPa 138℃

[0078] It can be seen from Table 1 that the high heat-resistant and flame-retardant ABS composite material prepared in the examples of the present application has excellent flame retardancy and heat resistance.

[0079] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

Claims

1. A high heat-resistant flame-retardant ABS modifier, characterized in that: The high heat-resistant flame-retardant ABS modifier comprises the following raw materials in parts by weight: 60-80 parts of polyvinyl chloride, 10-20 parts of talc, 5-10 parts of nano-silicon dioxide, 5-10 parts of zirconium oxide, 4-8 parts of graphite powder, 10-20 parts of N-cyclohexylmaleimide, 15-25 parts of decabromodiphenylethane, 1-2 parts of antioxidant, 1-2 parts of light stabilizer, 2-4 parts of silane coupling agent and 4-8 parts of calcium stearate.

2. The high heat-resistant flame-retardant ABS modifier according to claim 1, characterized in that: The high heat-resistant flame-retardant ABS modifier comprises the following raw materials in parts by weight: 70 parts of polyvinyl chloride, 15 parts of talc, 8 parts of nano silicon dioxide, 8 parts of zirconium oxide, 6 parts of graphite powder, 15 parts of N-cyclohexylmaleimide, 20 parts of decabromodiphenylethane, 2 parts of antioxidant, 1 part of light stabilizer, 3 parts of silane coupling agent and 6 parts of calcium stearate.

3. The high heat-resistant flame-retardant ABS modifier according to claim 1, characterized in that: The antioxidant is n-octadecyl beta-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate or pentaerythritol tetrakis[beta-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate].

4. The high heat-resistant flame-retardant ABS modifier according to claim 1, characterized in that: The light stabilizer is a hindered amine light stabilizer.

5. The method for preparing the highly heat-resistant flame-retardant ABS modifier according to any one of claims 1 to 4, characterized in that: The steps include: (a) weighing each raw material according to weight; (b) melt-blending the raw materials and extruding and granulating them to obtain the high heat-resistant and flame-retardant ABS modifier.

6. The preparation method according to claim 5, characterized in that: The melt blending temperature is 180-190°C.

7. A high heat-resistant and flame-retardant ABS composite material, characterized in that: The high heat-resistant and flame-retardant ABS composite material comprises ABS resin and the high heat-resistant and flame-retardant ABS modifier according to any one of claims 1 to 4.

8. The high heat-resistant and flame-retardant ABS composite material according to claim 7, characterized in that: The content of the high heat-resistant flame-retardant ABS modifier in the high heat-resistant flame-retardant ABS composite material is 40% to 50%.

9. The high heat-resistant and flame-retardant ABS composite material according to claim 7, characterized in that: The high heat-resistant and flame-retardant ABS composite material is prepared by melt-blending and extruding granulation of ABS resin and a high heat-resistant and flame-retardant ABS modifier.