阅读说明：本技术 一种低voc、低气味pc/abs合金材料及其制备工艺 (Low-VOC (volatile organic compound) and low-odor PC/ABS (polycarbonate/acrylonitrile-butadiene-styrene) alloy material and preparation process thereof ) 是由 高文才 于 2021-01-07 设计创作，主要内容包括：本发明公开了一种低VOC、低气味PC/ABS合金材料的制备,配方按重量计,包括：PC 30-85份,ABS 10-65份,共聚物1-10份,螯合剂0.1-0.5份,抗UV剂0.1-0.5份,抗氧剂1 0.1-0.5份,抗氧剂2 0.1-0.5份,润滑剂1-3份,两性金属氧化物1-3份,色母1-2份。将各组分按顺序依次加入搅拌设备,搅拌混合,混合料风干后,经过挤出机熔融挤出,得到低VOC、低气味PC/ABS合金材料。本发明添加两性金属氧化物,降低了挥发性小分子在产品使用过程中的挥发量,同时可以有效降解吸附的挥发性小分子,使得本产品具有低VOC、低气味的特性。(The invention discloses a preparation method of a low-VOC and low-odor PC/ABS alloy material, which comprises the following steps of: 30-85 parts of PC, 10-65 parts of ABS, 1-10 parts of copolymer, 0.1-0.5 part of chelating agent, 0.1-0.5 part of anti-UV agent, 10.1-0.5 part of antioxidant, 20.1-0.5 part of antioxidant, 1-3 parts of lubricant, 1-3 parts of amphoteric metal oxide and 1-2 parts of color master batch. Sequentially adding the components into a stirring device, stirring and mixing, air-drying the mixture, and performing melt extrusion through an extruder to obtain the low-VOC and low-odor PC/ABS alloy material. The amphoteric metal oxide is added, so that the volatilization amount of volatile small molecules in the using process of the product is reduced, and the adsorbed volatile small molecules can be effectively degraded, so that the product has the characteristics of low VOC and low odor.)

1. A low VOC, low odor PC/ABS alloy material, its characteristic lies in: comprises the following components in parts by weight: 30-85 parts of PC, 10-65 parts of ABS, 1-10 parts of copolymer, 0.1-0.5 part of chelating agent, 0.1-0.5 part of anti-UV agent, 10.1-0.5 part of antioxidant, 20.1-0.5 part of antioxidant, 1-3 parts of lubricant, 1-3 parts of amphoteric metal oxide and 1-3 parts of color master batch; the chelating agent is polycarboxylate; the polycarboxylate is a copolymer of styrene-acrylonitrile-glycidyl methacrylate; the anti-UV agent is a benzotriazole anti-UV agent.

2. The low VOC, low odor PC/ABS alloy material of claim 1, wherein: the benzotriazole UV-resistant agent is one or more of methylene bis (6-benzotriazole-4-tert-octylphenol), 2- (2H-benzotriazole-2-yl) -4- (1,1,3, 3-tetramethylbutyl) phenol, 2- (2-hydroxy-3-tert-butyl-5-methylphenyl) -5-chlorobenzotriazole and 2- (2-hydroxy-3, 5-di-tert-butylphenyl) -5-chlorobenzotriazole.

3. The low VOC, low odor PC/ABS alloy material of claim 1, wherein: the copolymer is one or more of styrene-butadiene-acrylonitrile copolymer and methyl methacrylate-butadiene copolymer.

4. The low VOC, low odor PC/ABS alloy material of claim 1, wherein: the antioxidant 1 is a phenol antioxidant; the phenolic antioxidant is one or more of pentaerythritol tetrakis [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate ], octadecyl beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate and isooctyl 3, 5-di-tert-butyl-4-hydroxyphenyl propionate.

5. The low VOC, low odor PC/ABS alloy material of claim 1, wherein: the antioxidant 2 is a phosphite ester antioxidant; the phosphite ester antioxidant is one or more of tris (2, 4-di-tert-butylphenyl) phosphite and dioctadecyl pentaerythritol diphosphite.

6. The low VOC, low odor PC/ABS alloy material of claim 1, wherein: the lubricant is a carboxylate polymer; the carboxylate polymer is one or more of acrylic acid-ethylene polymer, acrylic acid-propylene polymer and acrylic acid-acrylonitrile polymer.

7. The low VOC, low odor PC/ABS alloy material of claim 1, wherein: the amphoteric metal oxide is one or more of titanium dioxide, zinc oxide and aluminum oxide.

8. A process for preparing the low VOC, low odor PC/ABS alloy material according to claim 1, wherein: sequentially adding the components into a stirring device, stirring and mixing, air-drying the mixture, and melting and extruding through an extruder.

9. The preparation process of the low-VOC low-odor PC/ABS alloy material as claimed in claim 8, wherein the preparation process comprises the following steps: the air drying is hot air circulation air drying at 80-100 ℃, and the air drying time is 3.5-4.5 h.

10. The preparation process of the low-VOC low-odor PC/ABS alloy material as claimed in claim 8, wherein the preparation process comprises the following steps: the extruder is divided into a head area and a body area; the temperature of the handpiece area is 250-260 ℃; the fuselage district divides 9 sections altogether, and 9 section temperatures are respectively: at 220 ℃ at 210-.

Technical Field

The invention relates to the field of PC/ABS (polycarbonate/acrylonitrile-butadiene-styrene) alloy, in particular to a low-VOC and low-odor PC/ABS alloy material and a preparation process thereof.

Technical Field

PC/ABS plastic alloys, which are polycarbonate and acrylonitrile-butadiene-styrene copolymers and blends, combine the excellent properties of both PC and ABS materials, such as moldability of ABS materials and mechanical properties, impact strength and temperature resistance, and Ultraviolet (UV) resistance of PC, have been widely used in automotive interior parts, medical devices, home appliances, and lighting devices.

However, PC/ABS plastic alloy has more small molecular impurities, Volatile Organic Compounds (VOC): benzene, toluene, ethylbenzene, formaldehyde, acetaldehyde, acrolein, styrene, etc., have various degrees of damage to the human body. Particularly, for various automobile interior parts made of PC/ABS plastic alloy, the released VOC is harmful to human health, and the emitted bad smell can also damage user experience.

In the grant publication No. CN107325519B, a low VOC PC/ABS alloy material and a preparation method thereof are disclosed, active carbon and a metal organic framework compound are added as an adsorbent in the PC/ABS alloy material, small molecular substances remained in the alloy during the extrusion process of the alloy material are stably stored and fixed in the material, and cerium-doped titanium dioxide nanotubes are added as a degrading agent to degrade the adsorbed small molecular substances, but the added cerium is easily oxidized to destroy the stability of the PC/ABS alloy material.

Disclosure of Invention

In order to solve the above problems, the present invention provides, in a first aspect, a low VOC, low odor PC/ABS alloy material.

A low VOC, low odor PC/ABS alloy material comprising, by weight: 30-85 parts of PC, 10-65 parts of ABS, 1-10 parts of copolymer, 0.1-0.5 part of chelating agent, 0.1-0.5 part of anti-UV agent, 10.1-0.5 part of antioxidant, 20.1-0.5 part of antioxidant, 1-3 parts of lubricant, 1-3 parts of amphoteric metal oxide and 1-2 parts of color master batch.

Further, the chelating agent is a polycarboxylate.

Further, the polycarboxylate is a copolymer of styrene-acrylonitrile-glycidyl methacrylate.

Further, the anti-UV agent is a benzotriazole anti-UV agent.

Further, the benzotriazole is one or more of methylenebis (6-benzotriazole-4-tert-octylphenol), 2- (2H-benzotriazole-2-yl) -4- (1,1,3, 3-tetramethylbutyl) phenol, 2- (2-hydroxy-3-tert-butyl-5-methylphenyl) -5-chlorobenzotriazole and 2- (2-hydroxy-3, 5-di-tert-butylphenyl) -5-chlorobenzotriazole.

Further, the copolymer is one or more of styrene-butadiene-acrylonitrile copolymer and methyl methacrylate-butadiene copolymer.

Further, the antioxidant 1 is a phenolic antioxidant; the phenolic antioxidant is one or more of pentaerythritol tetrakis [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate ], octadecyl beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate and isooctyl 3, 5-di-tert-butyl-4-hydroxyphenyl propionate.

Further, the antioxidant 2 is a phosphite antioxidant; the phosphite ester antioxidant is one or more of tris (2, 4-di-tert-butylphenyl) phosphite and dioctadecyl pentaerythritol diphosphite.

Further, the lubricant is a carboxylate type polymer; the carboxylate polymer is one or more of acrylic acid-ethylene polymer, acrylic acid-propylene polymer and acrylic acid-acrylonitrile polymer.

Further, the amphoteric metal oxide is one or more of titanium dioxide, zinc oxide and aluminum oxide.

The second aspect provides a preparation process of the low-VOC and low-odor PC/ABS alloy material.

A low VOC and low odor PC/ABS alloy material is prepared by the following steps: sequentially adding the components into a stirring device, stirring and mixing, air-drying the mixture, and melting and extruding through an extruder.

Further, the stirring time is 5-15 min.

Further, the air drying is hot air circulation air drying at 80-100 ℃, and the air drying time is 3.5-4.5 h.

Further, the extruder is divided into 9 sections, and the temperatures of the 9 sections are respectively as follows: at 220 ℃ at 210-.

Compared with the prior art, the invention has the beneficial effects that:

titanium dioxide is added into the product, the strong adsorption capacity brought by the structural characteristics of the titanium dioxide is utilized, the volatilization amount of volatile micromolecules in the use process of the product is reduced, meanwhile, the titanium dioxide has catalytic degradation capacity under illumination, the adsorbed volatile micromolecules can be effectively degraded, and the product has the characteristics of low VOC and low odor. The friction between the product and an extruder is small during melt extrusion, the condition that the surface of a molten high polymer is rough during extrusion molding is effectively improved, and the surface smoothness of the PC/ABS alloy material is improved. Meanwhile, the product has good fluidity, heat resistance, impact resistance, electroplating property, stability and flame retardance, and is widely applied to interior and exterior trims of automobiles, shells of electric appliances, surface parts of daily necessities, small household appliances, engineering equipment, office supplies, water meter accessories and the like.

Detailed Description

In order to solve the above problems, the present invention provides, in a first aspect, a low VOC, low odor PC/ABS alloy material.

A low VOC, low odor PC/ABS alloy material, comprising by weight: 30-85 parts of PC, 10-65 parts of ABS, 1-10 parts of copolymer, 0.1-0.5 part of chelating agent, 0.1-0.5 part of anti-UV agent, 10.1-0.5 part of antioxidant, 20.1-0.5 part of antioxidant, 1-3 parts of lubricant, 1-3 parts of amphoteric metal oxide and 1-2 parts of color master batch.

Further, the chelating agent is a polycarboxylate.

Further, the polycarboxylate is a copolymer of styrene-acrylonitrile-glycidyl methacrylate.

Further, the anti-UV agent is a benzotriazole anti-UV agent.

Further, the benzotriazole is one or more of methylenebis (6-benzotriazole-4-tert-octylphenol), 2- (2H-benzotriazole-2-yl) -4- (1,1,3, 3-tetramethylbutyl) phenol, 2- (2-hydroxy-3-tert-butyl-5-methylphenyl) -5-chlorobenzotriazole and 2- (2-hydroxy-3, 5-di-tert-butylphenyl) -5-chlorobenzotriazole.

Further, the copolymer is one or more of styrene-butadiene-acrylonitrile copolymer and methyl methacrylate-butadiene copolymer.

Further, the antioxidant 1 is a phenolic antioxidant; the phenolic antioxidant is one or more of pentaerythritol tetrakis [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate ], octadecyl beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate and isooctyl 3, 5-di-tert-butyl-4-hydroxyphenyl propionate.

Further, the antioxidant 2 is a phosphite antioxidant; the phosphite ester antioxidant is one or more of tris (2, 4-di-tert-butylphenyl) phosphite and dioctadecyl pentaerythritol diphosphite.

Further, the lubricant is a carboxylate type polymer; the carboxylate polymer is one or more of acrylic acid-ethylene polymer, acrylic acid-propylene polymer and acrylic acid-acrylonitrile polymer.

Further, the amphoteric metal oxide is one or more of titanium dioxide, zinc oxide and aluminum oxide.

PC, a polycarbonate, abbreviated as "PC", is a high molecular polymer containing carbonate groups in its molecular chain, and can be classified into various types, such as aliphatic, aromatic, aliphatic-aromatic, and the like, according to the structure of the ester groups.

ABS, acrylonitrile (A), butadiene (B) and styrene (S), the relative contents of the three monomers can be changed at will, and various resins can be prepared.

The copolymer can enable high polymers with larger solubility parameter difference to be blended and compatible, namely, the resistance of contact interfaces of different polymers is reduced, the particle size of a disperse phase (the disperse phase with small content) is reduced, the surface area of the disperse phase is increased, and the bonding force of the disperse phase and a continuous phase (the continuous phase with large content) is improved under the help of intermolecular bonding force.

The chelating agent can improve the compatibility between high polymers and improve the dispersion effect of each component of the system.

The anti-UV agent can effectively absorb ultraviolet light with the wavelength of 270-380nm, and greatly improves the anti-aging capabilities of the polymer such as oxidation resistance, yellow resistance and the like.

Antioxidants retard or inhibit the progress of the polymer oxidation process, thereby preventing aging and extending the useful life of the polymer.

The lubricant can improve the lubricating property of the molten high polymer and reduce the interface adhesion property, so that the molten high polymer has improved fluidity and retentate prevention and reduction during extrusion molding.

Due to the large specific surface, abundant pore structures and surface structures, the amphoteric metal oxide shows strong adsorption capacity and can adsorb impurities from gas and liquid.

The present invention will be specifically described below by way of examples. It should be noted that the following examples are only for illustrating the present invention and should not be construed as limiting the scope of the present invention, and that the insubstantial modifications and adaptations of the present invention by those skilled in the art based on the above disclosure are still within the scope of the present invention.

In addition, the starting materials used are all commercially available, unless otherwise specified.

Wherein, PC is purchased from Shabo basic Innovation plastics, Inc., brand: 2200R, CAS: 25929-04-8.

ABS was purchased from seiko polymers (zhangjia) limited under the brand name: 156, CAS: 9003-56-9.

Styrene-butadiene-acrylonitrile copolymer was purchased from brocade lake petrochemicals, korea, under the trade name: H181R, CAS: 9003-56-9.

Copolymers of styrene-acrylonitrile-glycidyl methacrylate were purchased from shanghai zhugengi engineering technologies, inc, under the brand number: 002, CAS: 29762-66-1.

Methylenebis (6-benzotriazole-4-tert-octylphenol), CAS: 103597-45-1.

2- (2H-benzotriazol-2-yl) -4- (1,1,3, 3-tetramethylbutyl) phenol, CAS: 3147-75-9.

Pentaerythritol tetrakis [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate ], CAS: 6683-19-8.

Tris (2, 4-di-tert-butylphenyl) phosphite, CAS: 31570-04-4.

Acrylic-ethylene polymers are available from honeywell international corporation under the trade designation: 540A, CAS: 9010-77-9.

Titanium dioxide, CAS: 13463-67-7.

Color concentrates were purchased from fuxin plastic additives ltd, brand: fuxin masterbatch, type: FUXIN-1.

Example 1

The low-VOC and low-odor PC/ABS alloy material is prepared as follows:

the PC/ABS alloy material comprises the following components in parts by weight: 40 parts of PC (polycarbonate), 65 parts of ABS (acrylonitrile-butadiene-acrylonitrile copolymer), 4 parts of styrene-acrylonitrile-glycidyl methacrylate copolymer, 0.3 part of methylene bis (6-benzotriazole-4-tert-octylphenol), 0.2 part of 2- (2H-benzotriazole-2-yl) -4- (1,1,3, 3-tetramethylbutyl) phenol, 0.2 part of tetra [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid ] pentaerythritol ester, 0.3 part of tris (2, 4-di-tert-butylphenyl) phosphite, 1 part of acrylic acid-ethylene polymer, 3 parts of titanium dioxide and 1 part of color master batch.

The preparation process of the PC/ABS alloy material comprises the following steps: sequentially adding the components into a stirring device in sequence, stirring and mixing for 5 minutes, circularly air-drying the mixture at 100 ℃ for 4 hours, and melting and extruding the air-dried mixture in an extruder.

Example 2

The low-VOC and low-odor PC/ABS alloy material is prepared as follows:

the PC/ABS alloy material comprises the following components in parts by weight: 65 parts of PC (polycarbonate), 50 parts of ABS (acrylonitrile-butadiene-acrylonitrile copolymer), 4 parts of styrene-acrylonitrile-glycidyl methacrylate copolymer, 0.4 part of methylene bis (6-benzotriazole-4-tert-octylphenol), 0.3 part of 2- (2H-benzotriazole-2-yl) -4- (1,1,3, 3-tetramethylbutyl) phenol, 0.2 part of tetra [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid ] pentaerythritol ester, 0.3 part of tris (2, 4-di-tert-butylphenyl) phosphite, 1 part of acrylic acid-ethylene polymer, 3 parts of titanium dioxide and 1 part of color master batch.

The preparation process of the PC/ABS alloy material comprises the following steps: sequentially adding the components into a stirring device in sequence, stirring and mixing for 5 minutes, circularly air-drying the mixture at 100 ℃ for 4 hours, and melting and extruding the air-dried mixture in an extruder.

Example 3

The low-VOC and low-odor PC/ABS alloy material is prepared as follows:

the PC/ABS alloy material comprises the following components in parts by weight: 70 parts of PC (polycarbonate), 30 parts of ABS (acrylonitrile-butadiene-acrylonitrile copolymer), 4 parts of styrene-acrylonitrile-glycidyl methacrylate copolymer, 0.3 part of methylene bis (6-benzotriazole-4-tert-octylphenol), 0.2 part of 2- (2H-benzotriazole-2-yl) -4- (1,1,3, 3-tetramethylbutyl) phenol, 0.2 part of tetra [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid ] pentaerythritol ester, 0.3 part of tris (2, 4-di-tert-butylphenyl) phosphite, 2 parts of acrylic acid-ethylene polymer, 1 part of titanium dioxide and 1 part of color master batch.

The preparation process of the PC/ABS alloy material comprises the following steps: sequentially adding the components into a stirring device in sequence, stirring and mixing for 5 minutes, circularly air-drying the mixture at 100 ℃ for 4 hours, and melting and extruding the air-dried mixture in an extruder.

Example 4

The low-VOC and low-odor PC/ABS alloy material is prepared as follows:

the PC/ABS alloy material comprises the following components in parts by weight: 80 parts of PC (polycarbonate), 20 parts of ABS (acrylonitrile-butadiene-acrylonitrile copolymer), 6 parts of styrene-acrylonitrile-glycidyl methacrylate copolymer, 0.3 part of methylene bis (6-benzotriazole-4-tert-octylphenol), 0.2 part of 2- (2H-benzotriazole-2-yl) -4- (1,1,3, 3-tetramethylbutyl) phenol, 0.2 part of tetra [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid ] pentaerythritol ester, 0.3 part of tris (2, 4-di-tert-butylphenyl) phosphite, 1 part of acrylic acid-ethylene polymer, 1 part of titanium dioxide and 1 part of color master batch.

The preparation process of the PC/ABS alloy material comprises the following steps: sequentially adding the components into a stirring device in sequence, stirring and mixing for 5 minutes, circularly air-drying the mixture at 100 ℃ for 4 hours, and melting and extruding the air-dried mixture in an extruder.

Example 5

The low-VOC and low-odor PC/ABS alloy material is prepared as follows:

the PC/ABS alloy material comprises the following components in parts by weight: 70 parts of PC (polycarbonate), 30 parts of ABS (acrylonitrile-butadiene-acrylonitrile copolymer), 6 parts of styrene-acrylonitrile-glycidyl methacrylate copolymer, 0.3 part of methylene bis (6-benzotriazole-4-tert-octylphenol), 0.2 part of 2- (2H-benzotriazole-2-yl) -4- (1,1,3, 3-tetramethylbutyl) phenol, 0.2 part of tetra [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid ] pentaerythritol ester, 0.3 part of tris (2, 4-di-tert-butylphenyl) phosphite, 1 part of acrylic acid-ethylene polymer, 2 parts of titanium dioxide and 1 part of color master batch.

The preparation process of the PC/ABS alloy material comprises the following steps: sequentially adding the components into a stirring device in sequence, stirring and mixing for 5 minutes, circularly air-drying the mixture at 100 ℃ for 4 hours, and melting and extruding the air-dried mixture in an extruder.

Example 6

The low-VOC and low-odor PC/ABS alloy material is prepared as follows:

the PC/ABS alloy material comprises the following components in parts by weight: 65 parts of PC (polycarbonate), 50 parts of ABS (acrylonitrile-butadiene-acrylonitrile copolymer), 4 parts of styrene-acrylonitrile-glycidyl methacrylate copolymer, 0.3 part of methylene bis (6-benzotriazole-4-tert-octylphenol), 0.2 part of 2- (2H-benzotriazole-2-yl) -4- (1,1,3, 3-tetramethylbutyl) phenol, 0.2 part of tetra [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid ] pentaerythritol ester, 0.3 part of tris (2, 4-di-tert-butylphenyl) phosphite, 3 parts of acrylic acid-ethylene polymer, 2 parts of titanium dioxide and 1 part of color master batch.

The preparation process of the PC/ABS alloy material comprises the following steps: sequentially adding the components into a stirring device in sequence, stirring and mixing for 5 minutes, circularly air-drying the mixture at 100 ℃ for 4 hours, and melting and extruding the air-dried mixture in an extruder.

Example 7

The low-VOC and low-odor PC/ABS alloy material is prepared as follows:

the PC/ABS alloy material comprises the following components in parts by weight: 85 parts of PC (polycarbonate), 65 parts of ABS (acrylonitrile-butadiene-acrylonitrile copolymer), 7 parts of styrene-acrylonitrile-glycidyl methacrylate copolymer, 0.5 part of methylene bis (6-benzotriazole-4-tert-octylphenol), 0.3 part of 2- (2H-benzotriazole-2-yl) -4- (1,1,3, 3-tetramethylbutyl) phenol, 0.2 part of tetra [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid ] pentaerythritol ester, 0.3 part of tris (2, 4-di-tert-butylphenyl) phosphite, 2 parts of acrylic acid-ethylene polymer, 1 part of titanium dioxide and 1 part of color master batch.

The preparation process of the PC/ABS alloy material comprises the following steps: sequentially adding the components into a stirring device in sequence, stirring and mixing for 5 minutes, circularly air-drying the mixture at 100 ℃ for 4 hours, and melting and extruding the air-dried mixture in an extruder.

Comparative example 1

The low-VOC and low-odor PC/ABS alloy material is prepared as follows:

the PC/ABS alloy material comprises the following components in parts by weight: 40 parts of PC (polycarbonate), 60 parts of ABS (acrylonitrile-butadiene-acrylonitrile copolymer), 4 parts of styrene-acrylonitrile-glycidyl methacrylate copolymer, 0.3 part of methylene bis (6-benzotriazole-4-tert-octylphenol), 0.2 part of 2- (2H-benzotriazole-2-yl) -4- (1,1,3, 3-tetramethylbutyl) phenol, 0.2 part of tetra [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid ] pentaerythritol ester, 0.3 part of tris (2, 4-di-tert-butylphenyl) phosphite, 1 part of acrylic acid-ethylene polymer and 1 part of color master batch.

The preparation process of the PC/ABS alloy material comprises the following steps: sequentially adding the components into a stirring device in sequence, stirring and mixing for 5 minutes, circularly air-drying the mixture at 100 ℃ for 4 hours, and melting and extruding the air-dried mixture in an extruder.

Comparative example 2

The low-VOC and low-odor PC/ABS alloy material is prepared as follows:

the PC/ABS alloy material comprises the following components in parts by weight: 85 parts of PC (polycarbonate), 65 parts of ABS (acrylonitrile-butadiene-acrylonitrile copolymer), 7 parts of styrene-acrylonitrile-glycidyl methacrylate copolymer, 0.5 part of methylene bis (6-benzotriazole-4-tert-octylphenol), 0.3 part of 2- (2H-benzotriazole-2-yl) -4- (1,1,3, 3-tetramethylbutyl) phenol, 0.2 part of tetra [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid ] pentaerythritol ester, 0.3 part of tris (2, 4-di-tert-butylphenyl) phosphite, 2 parts of acrylic acid-ethylene polymer and 1 part of color master batch.

The preparation process of the PC/ABS alloy material comprises the following steps: sequentially adding the components into a stirring device in sequence, stirring and mixing for 5 minutes, circularly air-drying the mixture at 100 ℃ for 4 hours, and melting and extruding the air-dried mixture in an extruder.

Performance testing

TVOC and odor measurement were carried out on the PC/ABS synthetic metals obtained in the different examples and comparative examples, and the data are recorded in Table 1.

Test methods for TVOC refer to Q/JLYJ7110274B-2014, units: μ g/tube.

Odor test method refer to Q/JLY J7110538C-2016, odor rating scale: 1 intolerable, 2 very aversive, 3 aversive, 4 aversive, 5 somewhat intolerable, 6 tolerable, 7 slightly tolerable, 8 noticeable odor, 9 somewhat noticeable odor, 10 no odor.

TABLE 1

The product of the most preferred example 1 was also tested for atomization, confinement, light aging resistance, solvent resistance, heat resistance, low temperature resistance, flammability and physical properties. The test results for each item are shown below:

1. the results of the fogging test showed "no detection". The test method refers to QJLY J7110341B-2012.

2. And forbidden substances such as lead, cadmium, mercury, hexavalent chromium, polybrominated biphenyl, polybrominated diphenyl ether and asbestos show no detection. The test method of lead, cadmium, mercury and hexavalent chromium refers to IEC 62321-5:2013 Ed.1.0, IEC 62321-4:2013 Ed.1.0 and IEC 62321-7-2: 2017; the test method of polybrominated biphenyl and polybrominated diphenyl ether refers to IEC 62321-6: 2015; the asbestos test method is according to ISO 22262-1: 2012.

3. The light aging resistance test result shows that the product is qualified. Test methods refer to Q/JLY J7110849B-2017, section 5.12 and Q/JL J1600004-2015, section 3.2.

4. The solvent resistance test results showed "pass". Test methods refer to Q/JLY J7110849B-2017, section 5.13.

5. The test results of heat resistance, low temperature resistance and combustibility all show "pass". The heat resistance test method refers to Q/JLY J7110849B-2017 section 5.9, the low temperature resistance test method refers to Q/JLY J7110849B-2017 section 5.10, the flammability test method refers to Q/JLY J7110849B-2017 section 5.11 and Q/JLY J7110335A-2011.

6. The physical properties such as density, bending, notched izod impact strength, low temperature notched izod impact strength, tensile strength, vicat softening temperature, all show "pass" test results. Wherein the density is tested as described in Q/JLY J7110849B-2017, section 5.3 and GB/T1033.1-2008 method A; the bending test method refers to Q/JLY J7110849B-2017 section 5.8 and GB/T9341-2008; the cantilever beam notch impact strength test method refers to Q/JLY J7110849B-2017 section 5.5 and GB/T1843-2008; the method for testing the notch impact strength of the low-temperature cantilever beam refers to Q/JLY J7110849B-2017 section 5.6 and GB/T1843-2008; the tensile strength test method refers to Q/JLY J7110849B-2017 section 5.4, GB/T1040.1-2006 and GB/T1040.2-2006; the Vicat softening temperature test method refers to Q/JLY J7110849B-2017 section 5.7 and GB/T1633-.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms, and any person skilled in the art may modify or change the technical content of the above disclosure into equivalent embodiments with equivalent changes, but all those simple modifications, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention still belong to the protection scope of the present invention.