CN103554867B - A kind of PC/ABS alloy material of low VOC and high performance and Synthesis and applications thereof - Google Patents
A kind of PC/ABS alloy material of low VOC and high performance and Synthesis and applications thereof Download PDFInfo
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Abstract
The invention provides a kind of PC/ABS alloy material and Synthesis and applications thereof of low VOC and high performance.Alloy material of the present invention, composition of raw materials comprises 30-80 weight part polycarbonate, 5-50 parts by weight of styrene-perbutan, 5-30 parts by weight of styrene-acrylonitrile copolymer, the agent of 1-10 parts by weight of compatible, 0.1-1.0 weight part odour absorbents, 0.1-1 weight part processing aid.Alloy material of the present invention, have lower oder levels, volatile organic content is few, good mechanical performance, may be used for preparing automotive upholstery.
Description
Technical field
The present invention relates to a kind of matrix material, be specifically related to a kind of PC/ABS alloy material and preparation thereof of low VOC and high performance, mainly for the preparation of automotive upholstery.
Background technology
Along with China's car enters family on a large scale, security issues become increasingly urgent for automobile inner air, generally speaking, new car smell mainly comes from the volatile organic compounds given out in car, be referred to as VOC(Volatilepounds), this wherein common are the most: benzene, toluene, ethylbenzene, acetaldehyde, formaldehyde, propenal, ethanol, vinylbenzene, n-tetradecane, ethyl acetate etc., and benzene, toluene, these objectionable impuritiess such as formaldehyde and dimethylbenzene are maximum to human injury, in particularly airtight for a long time environment inside car, due to not circulating of air, cause VOC concentration higher, occupant easily can produce weak, headache, feel sick etc. toxicity symptom, hurt the liver of human body, kidney, brain and neural system, cause the serious consequences such as hypomnesis.Therefore, for the health of driver and crew, improve current in-car air quality extremely urgent.
Using maximum in automotive trim plastic parts is modification PC/ABS(polycarbonate/Acrylnitrile-Butadiene-Styrene) series material, PC/ABS alloy has merged the high-performance of PC and ABS two kinds of resins, have many uses general, it increases the heat-resisting dimensional stability of ABS, improves PC low temperature, the resistance to punching property of rear wall, reduces costs.
Within complete component production cycle, PC/ABS inside gadget is required to give following performance: low VOC, and excellent moulding processability, to the adaptability of shaping complicated product; Outstanding heatproof, life-time service anti-fatigue performance, by assembly, the complete vehicle test of main engine plants.But the various auxiliary agents of PC, ABS and interpolation can discharge niff in process of production to some extent, and the total carbon emitting of PC/ABS alloy is higher.
Therefore, this area still need develop a kind of low VOC and high performance PC/ABS alloy material to meet above-mentioned requirements.
Summary of the invention
Object of the present invention is just to provide a kind of novel PC/ABS alloy material, and smell is excellent, and volatile organic content is few, good physical properties.
PC/ABS alloy material provided by the invention, composition of raw materials comprises:
According to the preferred embodiment of the present invention, the composition of raw materials of described alloy material comprises:
According to the present invention, described polycarbonate is bisphenol A-type aromatic copolycarbonate, and weight-average molecular weight is 20000 ~ 40000g/mol.
According to the present invention, described Acrylnitrile-Butadiene-Styrene is selected from ABS8434, ABS8391, ABS3513, ABS3504 of Shanghai Gaoqiao petrochemical industry; And/or
Described odour absorbents is selected from the PY88TQ of Degussa.
According to the present invention, the weight-average molecular weight of described styrene-acrylonitrile copolymer is 80000 ~ 150000g/mol, and wherein, acrylonitrile content is 10 ~ 30wt%, and styrene content is 70 ~ 90wt%.
According to the present invention, described compatilizer is selected from: styrene butadiene thermoplasticelastomer, MBS terpolymer, polyester elastomer, polyolefin elastomer, MBS terpolymer.
According to the present invention, described processing aid is one or more in primary antioxidant, auxiliary antioxidant, internal lubricant, external lubricant, wherein,
Described primary antioxidant is selected from: β-(3,5-di-tert-butyl-hydroxy phenyl) the positive octadecanol ester of propionic acid, four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester, two (2,4-di-tert-butyl-phenyl) tetramethylolmethane or 2,6-di-t-butyl-4-4 cresols;
Described auxiliary antioxidant is selected from: the two stearic alcohol ester of three (2,4-di-tert-butyl-phenyl) phosphorous acid ester, sulfo-three propionic acid two lauryl, thio-2 acid;
Described internal lubricant is selected from: E wax, calcium stearate or polyethylene wax;
Described external lubricant is silicone master batch or tetramethylolmethane stearate.
The invention provides the preparation method of alloy material, comprise and 30-80 weight part polycarbonate, 5-50 parts by weight of styrene-perbutan, 5-30 parts by weight of styrene-acrylonitrile copolymer, the agent of 1-10 parts by weight of compatible, 0.1-1.0 weight part odour absorbents, 0.1-1 weight part processing aid are inserted in twin screw extruder the step extruded and obtain described alloy material.
Alloy of the present invention, for the preparation of automotive upholstery.
Described inside gadget is selected from: panel board skeleton, door-plate fill skeleton, dashboard, inside rear-view mirror housing, demist grid, air-conditioner air outlet, auxiliary fasia console, glove box.
Alloy material of the present invention, smell is excellent, and volatile organic content is few, not only has lower oder levels, low total carbon, but also has excellent mechanical property.
Should be understood that within the scope of the present invention, above-mentioned each technical characteristic of the present invention and can combining mutually between specifically described each technical characteristic in below (eg embodiment), thus form new or preferred technical scheme.As space is limited, tiredly no longer one by one to state at this.
Embodiment
PC/ABS alloy material
PC/ABS alloy material provided by the invention is prepared from by the raw material with following weight part:
Preferably, alloy material provided by the invention, the composition of raw materials of described alloy material comprises:
More preferably, the composition of raw materials of described alloy material comprises:
Described polycarbonate is the bisphenol A-type aromatic copolycarbonate of weight-average molecular weight between 20000 ~ 40000g/mol.Commercially available product can be adopted, such as, select the PC1250Y of Di Ren company, the products such as 1225L.
Described Acrylnitrile-Butadiene-Styrene can adopt substance law to prepare.Commercially available product can be adopted, such as, select the products such as ABS8434, ABS8391, ABS3513, ABS3504 of Shanghai Gaoqiao petrochemical industry.Whiteness is good, and smell is low, residual monomer and volatile solvent content low.
Described styrene-acrylonitrile copolymer weight-average molecular weight is 80000 ~ 150000g/mol, and wherein, acrylonitrile content is 10 ~ 30wt%, and styrene content is 70 ~ 90wt%.Such as, the products such as the AS80HF of LG company are selected.
Described compatilizer is styrene butadiene thermoplasticelastomer, methyl methacrylate-divinyl-styrene copolymer, polyester elastomer, polyolefin elastomer, MBS terpolymer (MBS).Commercially available product can be adopted, such as, select the MBS-2620 of ROHM AND HAAS.
Described odour absorbents can adopt commercially available product, such as, selects the odour absorbents PY88TQ of Degussa, is kind of a highly enriched raw material, can be widely used in plastic applications, can the peculiar smell that causes with auxiliary agent of effectively solution plastics itself.It can constant absorption smell for a long time, when it is not also exhausted by smell occurring source completely, still can be activated under solubilizing systems; Can the direct low molecular mixture of chelating (containing amino nitrogen and hydrogen sulfide class functional group); And can directly and active group have an effect, active group is no longer evaporated in surrounding environment.
Described processing aid is one or more in primary antioxidant, auxiliary antioxidant, internal lubricant, external lubricant, wherein,
Wherein, described primary antioxidant is selected from: β-(3,5-di-tert-butyl-hydroxy phenyl) the positive octadecanol ester of propionic acid, four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester, two (2,4-di-tert-butyl-phenyl) tetramethylolmethane, in 2,6-di-t-butyl-4-4 cresols;
Described auxiliary antioxidant is selected from: the two stearic alcohol ester of three (2,4-di-tert-butyl-phenyl) phosphorous acid ester, sulfo-three propionic acid two lauryl, thio-2 acid;
Described internal lubricant is selected from: E wax, calcium stearate, polyethylene wax (PE wax);
Described external lubricant is selected from: silicone master batch, tetramethylolmethane stearate (PETS).
Alloy material of the present invention, preparation method is simple, is inserted in twin screw extruder to extrude by the raw material with above weight part to obtain described alloy material.
Alloy material of the present invention, may be used for preparing automotive upholstery.In a preference, described automotive upholstery is selected from: panel board skeleton, door-plate fill skeleton, dashboard, inside rear-view mirror housing, demist grid, air-conditioner air outlet, auxiliary fasia console, glove box.
Below in conjunction with specific embodiment, set forth the present invention further.Should be understood that these embodiments are only not used in for illustration of the present invention to limit the scope of the invention.
Universal method
Odor detection: carry out according to popular PV3900 standard.Sample in encloses container deposits 2 hours at 80 DEG C, is cooled to 60 DEG C, then judges according to the evaluation fraction levels of PV3900 standard, by more than 5 people participating in evaluating, draws a total judgement added up.1 is divided into odorlessness, 2 points of scent ofs but nonirritant; 3 are divided into and have obvious smell but nonirritant; 4 are divided into irritant smell; 5 are divided into and have strong impulse smell; 6 are divided into and have insufferable smell.
Total carbon emissions: carry out according to popular PV3341 standard.Headspace gas chromatography instrument is adopted to measure.Sample is produced on the whole cross section of structural part at prescribed position, and sample is cut into has weight 10mg-25mg fritter, and sample can not be made in this process to be heated.Sample is heavy to be amassed according to bottle, every 10ml bottle volume lg ± 0.001g.
Embodiment 1 ~ 5
Each raw-material weight number is in table 1.
PC resin and ABS resin, various auxiliary agent are added high mixer high-speed stirring 2 minutes, joins the main feeder of forcing machine, then join in twin screw extruder and carry out basic granulation.This extruder temperature distribution as follows: be respectively to head by feed zone: 240 DEG C, 260 DEG C, 260 DEG C, 260 DEG C, 255 DEG C, 250 DEG C, 250 DEG C, 250 DEG C, 250 DEG C, die head: 260 DEG C, material extrude after through water-cooled, pelletizing, then pack.Pellet is at air dry oven, and 90 DEG C of dryings 4 hours, then prepare test bars by injection moulding machine.
Table 1 raw material weight number proportioning table
Processing aid: 0.1 weight part primary antioxidant 1010 (four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester), 0.2 weight part auxiliary antioxidant 168(tri-[2.4-di-tert-butyl-phenyl] phosphorous acid ester) and 0.1 weight part lubricant E wax
Test the performance of test bars prepared by embodiment 1 ~ 5, result is as shown in table 2.
Table 2 the performance test results
From above embodiment result, adopt special compatilizer, odour absorbents, effectively can stop material degradation, control small molecules volatilization, obviously reduce material smell, improve the mechanical property of material.And each proportioning raw materials is different, the alloy material obtained has difference in performance.
In sum, the PC/ABS matrix material obtained by the present invention not only has lower oder levels, low total carbon, but also has excellent mechanical property.
The all documents mentioned in the present invention are quoted as a reference all in this application, are just quoted separately as a reference as each section of document.In addition should be understood that those skilled in the art can make various changes or modifications the present invention after having read above-mentioned teachings of the present invention, these equivalent form of values fall within the application's appended claims limited range equally.
Claims (1)
1. a PC/ABS alloy material, the composition of raw materials of described alloy material comprises:
Wherein, polycarbonate: PC 1225L 20 weight part and PC 1250Y 45 weight part;
Wherein, processing aid: 0.1 weight part primary antioxidant 1010 (four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester), 0.2 weight part auxiliary antioxidant 168 (three [2.4-di-tert-butyl-phenyl] phosphorous acid ester) and 0.1 weight part lubricant E wax.
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| CN109206830A (en) * | 2017-06-16 | 2019-01-15 | 合肥杰事杰新材料股份有限公司 | A kind of low smell heat-resistance acrylonitrile-butadimaterialylethylene materialylethylene and preparation method thereof |
| CN107141782A (en) * | 2017-06-20 | 2017-09-08 | 苏州旭光聚合物有限公司 | High glaze fiberglass reinforced modification of nylon |
| CN110283442B (en) * | 2019-06-22 | 2022-02-15 | 宁波浙铁大风化工有限公司 | Low-VOC toughened porcelain white flame-retardant PC and preparation method thereof |
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Address after: 201700 Shanghai Songze Avenue Qingpu District Industrial Park Lane 6638 No. 5 No. 7 Patentee after: Nakahiro Junl (Shanghai) new material Co., Ltd. Address before: Qingpu Songze Avenue Industrial Park of Qingpu District 201700 Shanghai 6638 Lane 5, No. 7 Patentee before: SHANGHAI JUNER NEW MATERIALS CO., LTD. |