CN102002220B - Polyester alloy composite material for decorative ring of vehicle lamp and preparation method thereof - Google Patents
Polyester alloy composite material for decorative ring of vehicle lamp and preparation method thereof Download PDFInfo
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- CN102002220B CN102002220B CN2010105828301A CN201010582830A CN102002220B CN 102002220 B CN102002220 B CN 102002220B CN 2010105828301 A CN2010105828301 A CN 2010105828301A CN 201010582830 A CN201010582830 A CN 201010582830A CN 102002220 B CN102002220 B CN 102002220B
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Abstract
The invention relates to a material for a decorative ring of a vehicle lamp and discloses a polyester alloy composite material for the decorative ring of the vehicle lamp and a preparation method thereof. The prior art has the defects that the prime coat treatment of the decorative ring of the vehicle lamp makes the processing cost increased and the production efficiency reduced, and a prime coat solvent volatilizes to pollute the environment. The polyester alloy composite material is prepared from the following raw materials in part by weight: 48.2 to 93.7 part of polybutylene terephthalate, 5 to 30 parts of polyethylene glycol terephthalate, 1 to 20 parts of inorganic filler, 0.1 to 0.6 part of antioxidant, 0.1 to 0.6 part of nucleating agent and 0.1 to 0.6 part of ester exchange inhibitor. The components are fused and blended at the temperature of between 210 and 280 DEG C so as to prepare the polyester alloy composite material. The invention has the advantages that: a step of spraying the prime coat is avoided, aluminum is directly plated, the production technology is simplified, and the production cost is reduced; and the surface of the material is high in glossiness, high in heat resistance and low in haze, and the phenomenon of lamp fogging is avoided.
Description
Technical field
The present invention relates to a kind of used for decorative ring of vehicle lamp material and preparation method thereof, specifically a kind of used for decorative ring of vehicle lamp polyester alloy matrix material and preparation method thereof.
Background technology
Various vehicles all are provided with multiple car light for driving safety, and car light is by lamp socket, bulb, and speculum, case ring and lens are formed.Car light is divided into two kinds in head light and SL, and head light comprises headlight, fog lamp, backup lamp etc.; SL comprises turn signal lamp, clearance lamps, taillight etc.The car light of difform car light, difference in functionality has different requirement to material, and wherein especially the power of lighting a lamp with headlight and fog lamp is the highest, and the high temperature that the automobile front of a lot of models produces in frequent use is above 120 ℃.And under hot conditions, small-molecule substance very easily evaporates from material, and condenses on the lens, causes the generation of " fog lamp " phenomenon, thereby influences the safe handling of car light.This material that produces lamp reflector and case ring of will seeking survival has advantages such as excellent heat resisting and low haze.The material of prior art manufacturing decorative ring of vehicle lamp is many in the past to be main with heat-resisting PC, in recent years, along with the difference of vehicle, the rising of car light temperature and the demand that automobile industry reduces cost, is replaced by PBT and PBT/PET alloy material gradually.
The course of processing of prior art decorative ring of vehicle lamp adopts vacuum evaporation that decorative ring of vehicle lamp is carried out surface metalation and handles.In order to obtain good mirror effect, before metalized, need carry out primary coat in advance and handle, so that reach good electroplating effect to the product surface.But the primary coat treatment process has brought series of technical such as tooling cost increase, production efficiency reduction, primary coat solvent evaporates contaminate environment thereupon.
Chinese patent CN1519591 discloses a kind of method that does not need primary coat to handle; Adopt polybutylene terephthalate; Polyethylene terephthalate; And add nonfibrous filler decorative ring of vehicle lamp material polyester alloy product is processed, having obtained high glossiness, the high smooth degree is also exempted from the decorative ring of vehicle lamp material of primary coat.But its shortcoming is a transesterification reaction of considering that not the polyester alloy product exists, makes the material property deterioration.Chinese patent CN 101481494 and CN101724229 disclose the method for preparing thermoplastic polyester alloy; Also considered the existence of transesterification reaction, but the both exists and considers that not part at high temperature frequently uses small molecules volatilization to cause the shortcoming of fog lamp phenomenon.Therefore it is very necessary inventing a kind of high heat-resisting, high glossiness, low haze, exempting to spray primary coat, direct aluminized used for decorative ring of vehicle lamp polyester alloy matrix material and preparation method thereof.
Summary of the invention
The purpose of this invention is to provide a kind of high heat-resisting, high glossiness, low haze, exempt to spray primary coat, direct aluminized used for decorative ring of vehicle lamp polyester alloy matrix material and preparation method thereof.
The objective of the invention is to realize like this:
A kind of used for decorative ring of vehicle lamp polyester alloy matrix material, form with the weight ratio raw material by following:
Polybutylene terephthalate 48.2-93.7 part
Polyethylene terephthalate 5-30 part
Mineral filler 1-20 part
Inhibitor 0.1-0.6 part
Nucleator 0.1-0.6 part
Ester exchange inhibitor 0.1-0.6 part;
Wherein, polybutylene terephthalate is a homopolymer, and intrinsic viscosity η is Ubbelohde viscosity 0.7-1.0; Haze value≤50 μ g/g;
Polyethylene terephthalate is a homopolymer, and intrinsic viscosity η is Ubbelohde viscosity 0.6-1.0; Haze value≤50 μ g/g.
Mineral filler is one or more composite uses of lime carbonate, permanent white, glass microballon and ceramic fine bead; Spherical particle, disperse phase yardstick are less than 10 μ m, and the disperse phase yardstick is preferably 5-10 μ m.
Inhibitor is phenols: N; N/-1; 6-dihexyl 23,5-two (1, the 1-dimethyl ethyl)-4-hydroxybenzene propionyl, four (β-(3; The 5-di-tert-butyl-hydroxy phenyl) propionic acid) pentaerythritol ester, triglycol two-3-(3-tertiary butyl-4-hydroxy-5-aminomethyl phenyl) propionic ester, the β-positive octadecanol ester of (4-hydroxyl-3,5-di-tert-butyl-phenyl) propionic acid;
Phosphorous acid esters: tetramethylolmethane diphosphite two (2,4-di-tert-butyl phenyl) esters, three (2, the 4-di-tert-butyl-phenyl) phosphorous acid ester, four (2,4-di-tert-butyl-phenyl-4,4/ xenyl) biphosphonate, distearyl pentaerythritol diphosphite;
Sulfolipins: (18) ester, Tyox B and alpha-alcohol ketone Pentaerythritols ten dithio propyl ester on the thio-2 acid; A kind of, two or three mixture in three kinds.
Nucleator is inorganic nucleator talcum powder, polynite, lime carbonate, the composite nucleating agent of one or both compositions of organic nucleating agent Sodium Benzoate, sorbyl alcohol dibenzyl ester, carboxylic acid sodium salt, and particle diameter is less than 1 μ m.
Ester exchange inhibitor is phosphoric acid salt, phosphorous acid ester.
The preparation method of used for decorative ring of vehicle lamp polyester alloy matrix material, step is following:
(1) oven dry 4h is subsequent use down at 120 ℃ with polybutylene terephthalate, polyethylene terephthalate;
(2) accurately take by weighing the raw material of each weight ratio;
(3) two or more in each component that step (2) is taken by weighing respectively premixs evenly after, again that premix is good product is through an opening for feed or a plurality of opening for feed feeding forcing machine of twin screw extruder;
(4) forcing machine that contains an opening for feed or a plurality of opening for feeds described in the step (3) contains one or more vacuum extractor simultaneously, and temperature 210-280 ℃ of extruding pelletization makes used for decorative ring of vehicle lamp polyester alloy matrix material.
Main points of the present invention are:
Oven dry 4h, polyethylene terephthalate (PET) are dried 4h down at 140 ℃ down at 120 ℃ with polybutylene terephthalate (PBT); Accurately taking by weighing each raw material inserts in the super mixer and mixes; Then that premix is good product is through an opening for feed or a plurality of opening for feed feeding forcing machine of twin screw extruder; Temperature 210-280 ℃ of extruding pelletization.On the barrel of forcing machine, be provided with one or more vacuum extractors, the small-molecule substance that produces in the material melt blending process is removed, make automotive lamp used for decorative ring polyester alloy matrix material.
The testing method of polybutylene terephthalate of the present invention (PBT), polyethylene terephthalate (PET) haze value is tested according to the standard P V3015 of Volkswagen, 140 ℃ of oil bath temperatures, test duration 16h.
Mineral filler disperse phase yardstick is less than 10 μ m, and preferred size is 1-5 μ m.In order to reach the effect of surperficial high glossiness, the filler outward appearance is spherical.Preferred filling kind comprises one or more mixing of lime carbonate, permanent white, glass microballon and ceramic fine bead.
Inhibitor is: the mixture of one or more in phenols, phosphorous acid esters, the sulfolipins material.Aldehydes matter is: N, N/-1,6-dihexyl 23,5-two (1, the 1-dimethyl ethyl)-4-hydroxybenzene propionyl; Four (β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid) pentaerythritol ester; Triglycol is two-3-(3-tertiary butyl-4-hydroxy-5-aminomethyl phenyl) propionic ester; β-positive octadecanol the ester of (4-hydroxyl-3,5-di-tert-butyl-phenyl) propionic acid.The phosphorous acid esters material is: tetramethylolmethane diphosphite two (2,4-di-tert-butyl phenyl) ester; Three (2, the 4-di-tert-butyl-phenyl) phosphorous acid ester; Four (2,4-di-tert-butyl-phenyl-4,4/ xenyl) biphosphonate; Distearyl pentaerythritol diphosphite; The sulfolipins material is: Pentaerythritols ten dithio propyl ester, (18) ester on the thio-2 acid; Tyox B; Alpha-alcohol ketone.The present invention adopts Hinered phenols and phosphorous acid esters compound system and Hinered phenols and the composite system of sulfolipins; Also can be three's compound system, three's compound system antioxidant effect be best.The addition of inhibitor is the 0.1-0.6 kilogram.The inhibitor label is known prior art, and the inhibitor trade mark that relates in the embodiment of the invention has 1098,1010,618,1076, TPP, 412S, 245,626,168.
Nucleator comprises inorganic nucleator and the organic nucleating agent of grain diameter less than 1 μ m.Inorganic nucleator comprises talcum powder, polynite, lime carbonate; Organic nucleating agent comprises: Sodium Benzoate, sorbyl alcohol dibenzyl ester, carboxylic acid sodium salt.Nucleator is any in inorganic nucleator and the organic nucleating agent, the perhaps composite nucleating agent of two kinds of compositions, and usage quantity is the 0.1-0.6 kilogram.
Ester exchange inhibitor in the component of the present invention is for generation transesterification reaction under the effect of controlling polybutylene terephthalate PBT, polyethylene terephtalate remaining catalyzer in building-up process, thereby causes material increasing of the decline of mechanical property, stable on heating reduction and surface gloss reduction and small-molecule substance to occur.Ester exchange inhibitor is preferably phosphoric acid salt, phosphorous acid esters, and its usage quantity is the 0.1-0.6 kilogram.
In addition, component of the present invention can also add additive commonly used, gives material different performances.Addible component also comprises any photostabilizer, static inhibitor, tinting material etc. except that above-mentioned oxidation inhibitor.
Among the preparation method of polyester alloy matrix material of the present invention, comprise two or more difference premixs in the component; And the product that premix is good is through an opening for feed or a plurality of opening for feed feeding forcing machine of twin screw extruder; The barrel that is included in forcing machine is provided with one or more vacuum extractors, so that in time the small-molecule substance that produces in the material melt blending process is removed, obtains qualified target product.
Twin screw extruder of the present invention is the Chemical Manufacture common equipment; The barrel of twin screw extruder of the present invention is provided with one or more vacuum means and is changed to known prior art; Twin screw extruder one district described in the embodiment of the invention, two districts divide according to technique known until nine zone position.
Phosphoric acid salt of the present invention, phosphorous acid esters ester exchange inhibitor are known prior art.
Because the utilization of technique scheme, the present invention compared with prior art has following effect:
The present invention adopts the mineral filler of ball-like structure, improve material the stable on heating while, make material have higher glossiness again, remove the process step of spray primary coat from, realize directly aluminizing, simplified production technique, reduced production cost.
The present invention adopts the polybutylene terephthalate and the polyethylene terephthalate of low haze valus, and it is few to contain condensable components.The present invention adopts preferred ester exchange inhibitor; Effectively suppressed the transesterification reaction that occurs between two kinds of polyester; When having kept mechanical property, reduced the content of the condensable components of material, the phenomenon that " fog lamp " etc. influences traffic safety appears after avoiding that car light is frequent and using.
Advantage of the present invention is:
1, removes spray primary coat step from and directly aluminize, simplify production technique;
2, reduce production costs;
3, surface gloss is high;
4, high heat-resisting, low haze is avoided the fog lamp phenomenon.
Embodiment
Below in conjunction with embodiment, the present invention is done a step explanation.
Embodiment 1:
Learn from else's experience 120 ℃ and dry 92.9 kilograms of polybutylene terephthalates behind the 4h; 5 kilograms of polyethylene terephthalates behind 140 ℃ of oven dry 4h; 5 kilograms in mineral filler lime carbonate; 10980.3 kilograms of inhibitors, 1680.1 kilograms of inhibitors; 0.3 kilogram of inorganic nucleator polynite; 0.3 kilogram of organic nucleating agent Sodium Benzoate; 0.1 kilogram of ester exchange inhibitor phosphoric acid salt; Putting into super mixer mixes above-mentioned raw materials; Drop into the main feeder of twin screw extruder then, form through double-screw extruding pelletizing.The forcing machine processing conditions is: 240 ℃ of forcing machine one district's temperature, 260 ℃ of two district's temperature, 260 ℃ of three district's temperature, 260 ℃ of four district's temperature, 250 ℃ of five district's temperature, 250 ℃ of six district's temperature, 250 ℃ of seven district's temperature, 240 ℃ of eight district's temperature, 230 ℃ of nine district's temperature; 350 rev/mins of engine speeds.
Embodiment 2:
Learn from else's experience 120 ℃ and dry 83.8 kilograms of polybutylene terephthalates behind the 4h; 5 kilograms of polyethylene terephthalates behind 140 ℃ of oven dry 4h; 10 kilograms in mineral filler lime carbonate; 0.3 kilogram of antioxidant 1010; 6260.2 kilograms of inhibitors; 0.3 kilogram of inorganic nucleator polynite; 0.3 kilogram of organic nucleating agent sorbyl alcohol dibenzyl ester; 0.1 kilogram of ester exchange inhibitor phosphoric acid salt.With polybutylene terephthalate, polyethylene terephthalate, oxidation inhibitor, ester exchange inhibitor through mixed at high speed after twin screw extruder master feeder feeding; All the other components are mixed after the feeding of twin screw extruder side direction feeder through high mixer; Form through double-screw extruding pelletizing.Processing conditions is: 240 ℃ of district's temperature, 260 ℃ of two district's temperature, 260 ℃ of three district's temperature, 260 ℃ of four district's temperature, 250 ℃ of five district's temperature, 250 ℃ of six district's temperature, 250 ℃ of seven district's temperature, 240 ℃ of eight district's temperature, 230 ℃ of nine district's temperature; 350 rev/mins of engine speeds.
Embodiment 3:
Learn from else's experience 120 ℃ and dry 73.7 kilograms of polybutylene terephthalates behind the 4h; 5 kilograms of polyethylene terephthalates behind 140 ℃ of oven dry 4h; 20 kilograms in mineral filler lime carbonate; 2450.3 kilograms of inhibitors; 6180.3 kilograms of inhibitors; 0.3 kilogram of inorganic nucleator polynite, 0.3 kilogram of organic nucleating agent carboxylic acid sodium salt; 0.1 kilogram of ester exchange inhibitor phosphorous acid ester.With polybutylene terephthalate, polyethylene terephthalate, oxidation inhibitor, ester exchange inhibitor through mixed at high speed after twin screw extruder master feeder feeding; All the other components are mixed after twin screw extruder side direction feeder feeds double-screw extruding pelletizing through high mixer.Processing conditions is: 240 ℃ of district's temperature, 260 ℃ of two district's temperature, 260 ℃ of three district's temperature, 260 ℃ of four district's temperature, 250 ℃ of five district's temperature, 250 ℃ of six district's temperature, 250 ℃ of seven district's temperature, 240 ℃ of eight district's temperature, 230 ℃ of nine district's temperature; 350 rev/mins of engine speeds.
Embodiment 4:
Learn from else's experience 120 ℃ and dry 82.7 kilograms of polybutylene terephthalates behind the 4h; 15 kilograms of polyethylene terephthalates behind 140 ℃ of oven dry 4h; 1 kilogram in mineral filler permanent white; 10760.3 kilograms of inhibitors, 0.3 kilogram of inhibitor TPP; 0.1 kilogram of inorganic nucleator polynite; 0.3 kilogram of ester exchange inhibitor phosphoric acid salt.In super mixer, said components is mixed together evenly, drops into the main feeder of twin screw extruder, double-screw extruding pelletizing.Processing conditions is: 240 ℃ of district's temperature, 260 ℃ of two district's temperature, 260 ℃ of three district's temperature, 260 ℃ of four district's temperature, 250 ℃ of five district's temperature, 250 ℃ of six district's temperature, 250 ℃ of seven district's temperature, 240 ℃ of eight district's temperature, 230 ℃ of nine district's temperature; 350 rev/mins of engine speeds.
Embodiment 5:
Learn from else's experience 120 ℃ and dry 68.8 kilograms of polybutylene terephthalates behind the 4h; 15 kilograms of polyethylene terephthalates behind 140 ℃ of oven dry 4h; 15 kilograms in mineral filler permanent white; 10760.3 kilograms of inhibitors, 0.3 kilogram of inhibitor 412S; 0.3 kilogram of inorganic nucleator polynite; 0.3 kilogram of ester exchange inhibitor phosphoric acid salt.After polybutylene terephthalate, polyethylene terephthalate, oxidation inhibitor, ester exchange inhibitor mixed at high speed, feed through twin screw extruder master feeder; All the other components are fed by twin screw extruder side direction feeder after high mixer mixes, through double-screw extruding pelletizing.Processing conditions is: 240 ℃ of district's temperature, 260 ℃ of two district's temperature, 260 ℃ of three district's temperature, 260 ℃ of four district's temperature, 250 ℃ of five district's temperature, 250 ℃ of six district's temperature, 250 ℃ of seven district's temperature, 240 ℃ of eight district's temperature, 230 ℃ of nine district's temperature; 350 rev/mins of engine speeds.
Embodiment 6:
Learn from else's experience 120 ℃ and dry 63.5 kilograms of polybutylene terephthalates behind the 4h; 15 kilograms of polyethylene terephthalates behind 140 ℃ of oven dry 4h; 20 kilograms in mineral filler permanent white; 10980.3 kilograms of inhibitors, 0.3 kilogram of inhibitor 412S; 0.6 kilogram of inorganic nucleator polynite; 0.3 kilogram of ester exchange inhibitor phosphoric acid salt.Polybutylene terephthalate, polyethylene terephthalate, oxidation inhibitor, ester exchange inhibitor after mixed at high speed, are fed by twin screw extruder master feeder.All the other components are fed by twin screw extruder side direction feeder after high mixer mixes.Double-screw extruding pelletizing forms.Processing conditions is: 240 ℃ of district's temperature, 260 ℃ of two district's temperature, 260 ℃ of three district's temperature, 260 ℃ of four district's temperature, 250 ℃ of five district's temperature, 250 ℃ of six district's temperature, 250 ℃ of seven district's temperature, 240 ℃ of eight district's temperature, 230 ℃ of nine district's temperature; 350 rev/mins of engine speeds.
Embodiment 7:
Learn from else's experience 120 ℃ and dry 77.6 kilograms of polybutylene terephthalates behind the 4h; 20 kilograms of polyethylene terephthalates behind 140 ℃ of oven dry 4h; 1 kilogram of mineral filler glass microballon; 0.3 kilogram of antioxidant 1010,0.6 kilogram of TPP; 0.1 kilogram of inorganic nucleator polynite; 0.4 kilogram of ester exchange inhibitor phosphoric acid salt.In super mixer, said components is mixed together evenly, drops into the main feeder of twin screw extruder, through double-screw extruding pelletizing.Processing conditions is: 240 ℃ of district's temperature, 260 ℃ of two district's temperature, 260 ℃ of three district's temperature, 260 ℃ of four district's temperature, 250 ℃ of five district's temperature, 250 ℃ of six district's temperature, 250 ℃ of seven district's temperature, 240 ℃ of eight district's temperature, 230 ℃ of nine district's temperature; 350 rev/mins of engine speeds.
Embodiment 8:
Learn from else's experience 120 ℃ and dry 68.8 kilograms of polybutylene terephthalates behind the 4h; 20 kilograms of polyethylene terephthalates behind 140 ℃ of oven dry 4h; 10 kilograms of mineral filler glass microballons; 2450.3 kilograms of inhibitors, 6180.2 kilograms of inhibitors; 0.3 kilogram of inorganic nucleator talcum powder; 0.4 kilogram of ester exchange inhibitor phosphoric acid salt.Polybutylene terephthalate, polyethylene terephthalate, oxidation inhibitor, ester exchange inhibitor are fed by twin screw extruder master feeder after mixed at high speed.All the other components are fed by twin screw extruder side direction feeder after high mixer mixes.Form through double-screw extruding pelletizing.Processing conditions is: 240 ℃ of district's temperature, 260 ℃ of two district's temperature, 260 ℃ of three district's temperature, 260 ℃ of four district's temperature, 250 ℃ of five district's temperature, 250 ℃ of six district's temperature, 250 ℃ of seven district's temperature, 240 ℃ of eight district's temperature, 230 ℃ of nine district's temperature; 350 rev/mins of engine speeds.
Embodiment 9:
Learn from else's experience 120 ℃ and dry 58.4 kilograms of polybutylene terephthalates behind the 4h; 20 kilograms of polyethylene terephthalates behind 140 ℃ of oven dry 4h; 20 kilograms of mineral filler glass microballons; 10760.3 kilograms of inhibitors, 6260.3 kilograms of inhibitors; 0.6 kilogram of inorganic nucleator talcum powder; 0.4 kilogram of ester exchange inhibitor phosphorous acid ester.Polybutylene terephthalate, polyethylene terephthalate, oxidation inhibitor, ester exchange inhibitor after mixed at high speed, are fed by twin screw extruder master feeder.All the other components are fed by twin screw extruder side direction feeder after high mixer mixes.Form through double-screw extruding pelletizing.Processing conditions is: 240 ℃ of district's temperature, 260 ℃ of two district's temperature, 260 ℃ of three district's temperature, 260 ℃ of four district's temperature, 250 ℃ of five district's temperature, 250 ℃ of six district's temperature, 250 ℃ of seven district's temperature, 240 ℃ of eight district's temperature, 230 ℃ of nine district's temperature; 350 rev/mins of engine speeds.
Embodiment 10:
Learn from else's experience 120 ℃ and dry 67.7 kilograms of polybutylene terephthalates behind the 4h; 30 kilograms of polyethylene terephthalates behind 140 ℃ of oven dry 4h; 1 kilogram of mineral filler ceramic fine bead; 10760.3 kilograms of inhibitors, 1680.1 kilograms of inhibitors; 0.3 kilogram of organic nucleating agent Sodium Benzoate; 0.6 kilogram of ester exchange inhibitor phosphoric acid salt.In super mixer, said components is mixed together evenly, drops into the main feeder of twin screw extruder, through double-screw extruding pelletizing.Processing conditions is: 240 ℃ of district's temperature, 260 ℃ of two district's temperature, 260 ℃ of three district's temperature, 260 ℃ of four district's temperature, 250 ℃ of five district's temperature, 250 ℃ of six district's temperature, 250 ℃ of seven district's temperature, 240 ℃ of eight district's temperature, 230 ℃ of nine district's temperature; 350 rev/mins of engine speeds.
Embodiment 11:
Learn from else's experience 120 ℃ and dry 58.6 kilograms of polybutylene terephthalates behind the 4h; 30 kilograms of polyethylene terephthalates behind 140 ℃ of oven dry 4h; 10 kilograms of mineral filler ceramic fine beads; 0.3 kilogram of antioxidant 1010,6260.2 kilograms of inhibitors; 0.3 kilogram of organic nucleating agent sorbyl alcohol dibenzyl ester; 0.6 kilogram of ester exchange inhibitor phosphoric acid salt.Polybutylene terephthalate, polyethylene terephthalate, oxidation inhibitor, ester exchange inhibitor after mixed at high speed, are fed by twin screw extruder master feeder; All the other components are fed by twin screw extruder side direction feeder after high mixer mixes.Double-screw extruding pelletizing, processing conditions is: 240 ℃ of district's temperature, 260 ℃ of two district's temperature, 260 ℃ of three district's temperature, 260 ℃ of four district's temperature, 250 ℃ of five district's temperature, 250 ℃ of six district's temperature, 250 ℃ of seven district's temperature, 240 ℃ of eight district's temperature, 230 ℃ of nine district's temperature; 350 rev/mins of engine speeds.
Embodiment 12:
Learn from else's experience 120 ℃ and dry 48.5 kilograms of polybutylene terephthalates behind the 4h; 30 kilograms of polyethylene terephthalates behind 140 ℃ of oven dry 4h; 20 kilograms of mineral filler ceramic fine beads; 10760.3 kilograms of inhibitors; 0.3 kilogram of inhibitor 412S; 0.3 kilogram of organic nucleating agent carboxylic acid sodium salt; 0.6 kilogram of ester exchange inhibitor phosphorous acid ester.Polybutylene terephthalate, polyethylene terephthalate, oxidation inhibitor, ester exchange inhibitor after mixed at high speed, are fed by twin screw extruder master feeder; All the other components mix after the feeding of twin screw extruder side direction feeder through high mixer.Form through double-screw extruding pelletizing.Processing conditions is: 240 ℃ of district's temperature, 260 ℃ of two district's temperature, 260 ℃ of three district's temperature, 260 ℃ of four district's temperature, 250 ℃ of five district's temperature, 250 ℃ of six district's temperature, 250 ℃ of seven district's temperature, 240 ℃ of eight district's temperature, 230 ℃ of nine district's temperature; 350 rev/mins of engine speeds.
Embodiment 13:
To embodiment 1---the polyester alloy performance of composites of 12 preparations is tested.
The glossiness test is according to ASTM D2457, and 60 ° of angles are selected in test for use, and specimen size is 100 * 100 * 2mm.The heat-drawn wire test is according to ASTM D648, and specimen size is 127 * 12.7 * 6.4mm.The popular PV3015 of mist degree test foundation, 140 ℃ of oil bath temperatures, test duration 16h, specimen size is Φ 80 * 2mm.
Pellet according to preparation among the embodiment is accomplished is dried 4h through 120 ℃, and the sample of injection moulding carries out performance test then, and test result is as shown in the table:
Data from table 1 can find out that the polyester alloy matrix material glossiness that obtains according to the present invention is high, and good heat resistance, haze value have also obtained effective control, can be widely used in the manufacturing of various Vehicular lamp decorations circles ex hoc genus anne type product component.
The foregoing description is merely preference of the present invention, is not used for limiting the present invention, and is all within principle of the present invention, and any modification and the variation made are all within protection scope of the present invention.
Claims (5)
1. used for decorative ring of vehicle lamp polyester alloy matrix material, form with the weight ratio raw material by following:
Wherein, polybutylene terephthalate is a homopolymer, and intrinsic viscosity η is Ubbelohde viscosity 0.7-1.0; Haze value≤50 μ g/g;
Polyethylene terephthalate is a homopolymer, and intrinsic viscosity η is Ubbelohde viscosity 0.6-1.0; Haze value≤50 μ g/g.
Mineral filler is one or more composite uses of lime carbonate, permanent white, glass microballon and ceramic fine bead; Spherical particle, the disperse phase yardstick is less than 10 μ m.
2. used for decorative ring of vehicle lamp polyester alloy matrix material according to claim 1; It is characterized in that: inhibitor is phenols: N, N/-1,6-dihexyl 23; 5-two (1; The 1-dimethyl ethyl)-and 4-hydroxybenzene propionyl, four (β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid) pentaerythritol ester, triglycol be two-3-(3-tertiary butyl-4-hydroxy-5-aminomethyl phenyl) propionic ester, the β-positive octadecanol ester of (4-hydroxyl-3,5-di-tert-butyl-phenyl) propionic acid;
Phosphorous acid esters: tetramethylolmethane diphosphite two (2,4-di-tert-butyl phenyl) esters, three (2, the 4-di-tert-butyl-phenyl) phosphorous acid ester, four (2,4-di-tert-butyl-phenyl-4,4/ xenyl) biphosphonate, distearyl pentaerythritol diphosphite;
Sulfolipins: (18) ester, Tyox B and alpha-alcohol ketone Pentaerythritols ten dithio propyl ester on the thio-2 acid; A kind of, two or three mixture in three kinds.
3. used for decorative ring of vehicle lamp polyester alloy matrix material according to claim 1; It is characterized in that: nucleator is inorganic nucleator talcum powder, polynite, lime carbonate; The composite nucleating agent of one or both compositions of organic nucleating agent Sodium Benzoate, sorbyl alcohol dibenzyl ester, carboxylic acid sodium salt, particle diameter is less than 1 μ m.
4. used for decorative ring of vehicle lamp polyester alloy matrix material according to claim 1 is characterized in that: ester exchange inhibitor is phosphoric acid salt, phosphorous acid ester.
5. the preparation method of each said a kind of used for decorative ring of vehicle lamp polyester alloy matrix material of claim 1～4, step is following:
(1) oven dry 4h is subsequent use down at 120 ℃ with polybutylene terephthalate, polyethylene terephthalate;
(2) accurately take by weighing the raw material of each weight ratio;
(3) two or more in each component that step (2) is taken by weighing respectively premixs evenly after, again that premix is good product is through an opening for feed or a plurality of opening for feed feeding forcing machine of twin screw extruder;
(4) forcing machine that contains an opening for feed or a plurality of opening for feeds described in the step (3) contains one or more vacuum extractor simultaneously, and temperature 210-280 ℃ of extruding pelletization makes used for decorative ring of vehicle lamp polyester alloy matrix material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105828301A CN102002220B (en) | 2010-12-10 | 2010-12-10 | Polyester alloy composite material for decorative ring of vehicle lamp and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105828301A CN102002220B (en) | 2010-12-10 | 2010-12-10 | Polyester alloy composite material for decorative ring of vehicle lamp and preparation method thereof |
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| Publication Number | Publication Date |
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| CN102002220A CN102002220A (en) | 2011-04-06 |
| CN102002220B true CN102002220B (en) | 2012-08-08 |
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| CN2010105828301A Active CN102002220B (en) | 2010-12-10 | 2010-12-10 | Polyester alloy composite material for decorative ring of vehicle lamp and preparation method thereof |
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| CN112646332B (en) * | 2020-12-16 | 2023-04-14 | 上海金发科技发展有限公司 | Low-haze high-gloss PBT (polybutylene terephthalate) composite material and preparation method thereof |
| CN114213819B (en) * | 2022-02-21 | 2022-05-03 | 广东顺德顺炎新材料股份有限公司 | Wear-resistant primer-free PBT (polybutylene terephthalate) composite material |
| CN115895201A (en) * | 2022-10-14 | 2023-04-04 | 中广核瑞胜发（厦门）新材料有限公司 | High-reflectivity PBT composition suitable for manufacturing reflection cup and preparation and application thereof |
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