CN104559091A - High-heat-resistance and high-toughness base-coating-free product and preparation method thereof - Google Patents
High-heat-resistance and high-toughness base-coating-free product and preparation method thereof Download PDFInfo
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- CN104559091A CN104559091A CN201510074933.XA CN201510074933A CN104559091A CN 104559091 A CN104559091 A CN 104559091A CN 201510074933 A CN201510074933 A CN 201510074933A CN 104559091 A CN104559091 A CN 104559091A
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Abstract
The invention discloses a high-heat-resistance and high-toughness base-coating-free product. The high-heat-resistance and high-toughness base-coating-free product is prepared from 64-74 wt% of PBT, 20-30wt% of PC, 3-5 wt% of a compatilizer, 0.5 wt% of a mesoporous material, 1.5 wt% of a nucleating agent, 0.5wt% of a lubricating agent and 0.5wt% of an antioxidant. The invention further discloses a preparation method of the high-heat-resistance and high-toughness base-coat-free product. According to the high-heat-resistance and high-toughness base-coat-free product and the preparation method thereof, the compatibility of a PBT/PC alloy is improved, the heat resistance and the low-temperature toughness of the base-coat-free material are improved, and a defect that the existing material is sensitive to a gap is overcome; the thermal deformation temperature of the material can be up to 170-180 DEG C, and the use standard that the existing car light decoration ring can resist the temperature of more than 160 DEG C is completely met; meanwhile, the high-heat-resistance and high-toughness base-coat-free product has excellent processing fluidity, and can meet use requirements of different product structures.
Description
Technical field
The present invention relates to polymeric material field, what particularly relate to a kind of high heat-resisting, high tenacity exempts from primary coat product and preparation method thereof.
Background technology
Current automobile lamp case ring has become the important component part of automobile personalized designs, wherein exempt from primary coat product to aluminize owing to can directly to steam, need not in advance through surface spraying, reduce the environmental pollution caused because of solvent evaporates, and avoid the compatibility problem between priming paint and matrix resin, in addition, exempt from the production cost that primary coat product effectively can also reduce automotive lamp product, therefore become an important development trend.Exempt from primary coat product in the market and mainly contain several large class such as PBT, PBT/ABS and heat-resisting PC product.Wherein, exempt from primary coat PBT and PBT/ABS alloy product surface gloss is poor, and heat-drawn wire is at 130-150 DEG C, is difficult to the service requirements meeting existing decorative ring of vehicle lamp product; The poor fluidity of heat-resisting PC product, price is higher.
Summary of the invention
The object of the present invention is to provide a kind of surface gloss good, excellent in mechanical performance, low-temperature flexibility is good, and heat-drawn wire is high, possesses good processing fluidity simultaneously, and what can meet the service requirements of present decorative ring of vehicle lamp exempts from primary coat product.
For achieving the above object, what the invention provides a kind of high heat-resisting, high tenacity exempts from primary coat product, it is characterized in that, is prepared by the component of following weight percent,
PBT：64-74％；
PC：20-30％；
Compatilizer: 3-5%;
Mesoporous material: 0.5%;
Nucleator: 1.5%;
Lubricant: 0.5%;
Oxidation inhibitor: 0.5%.
Preferably, PBT:68%;
PC：25％；
Compatilizer: 4%;
Mesoporous material: 0.5%;
Nucleator: 1.5%;
Lubricant: 0.5%;
Oxidation inhibitor: 0.5%.
Described PBT is the PBT of middle low viscosity material, and viscosity is 0.8-1.0dL/g.
Described PC is the PC of middle low viscosity material, and melting means is 10-20g/10min.
Described compatilizer is the multipolymer of acrylate and glycidyl methacrylate.
Described mesoporous material is the aluminosilicophosphate of aperture at the meso-hole structure of 2-50nm.
Described nucleator is ionic polymer.
Described lubricant is low molecule ester class.
Described oxidation inhibitor is the composite component of phenols and phosphorous acid ester; Preferably, both mass ratioes are 1: 2.
Exempt from the preparation method of primary coat product described in the present invention also protects, it is characterized in that, step is,
Raw material is taken by each weight percentages of components;
PBT, PC of taking and other additives are mixed 10-15min in high-speed mixer;
The raw material mixed is melt extruded by twin screw extruder, granulation, complete processing is as follows: temperature range 230-250 DEG C, and screw speed is at 350r/min.
PC component described in the present invention improves thermotolerance and the impelling strength of alloy material, compatilizer improves the interface compatibility of system further, but because PBT/PC alloy itself exists certain transesterification reaction in melt blending process, too high PC component can make transesterification reaction aggravate, small-molecule substance is separated out and is increased, material surface glossiness declines, and what be difficult to meet product exempts from primary coat requirement; In addition, compatibilizer content is too high, can reduce the mobility of material, can not meet the injection moulding requirement of product.Therefore, the present inventor, after test of many times and creative work, just draws technical scheme of the present invention.
The present invention by introducing PC matrix resin, and adds compatilizer, improves the consistency of PBT/PC alloy, improves this resistance toheat exempting from basecoat material and low-temperature flexibility.Compared with current material, PBT/PC of the present invention exempts from primary coat product and adds PC matrix resin and compatilizer, makes the heat-drawn wire of material reach 170-180 DEG C, meets the use standard of existing decorative ring of vehicle lamp heat resistant requirements more than 160 DEG C completely; In addition, this low-temperature flexibility exempting from basecoat material is good, overcomes current material poor toughness, to notch-sensitive shortcoming, possesses good processing fluidity simultaneously, can be competent at the service requirements of variant production structure.
The present invention is verified by a series of comparative example and embodiment, and obtaining technical scheme of the present invention, to have notched Izod impact strength high, and heat-drawn wire is high, and surface gloss is good, has good processing fluidity simultaneously, meets the service requirements of exempting from basecoat material.
Embodiment
Be described below in detail embodiments of the invention, the example of described embodiment is intended to for explaining the present invention, and can not be interpreted as limitation of the present invention.Unreceipted concrete technology or condition part in embodiment, according to the technology described by the document in this area or condition or carry out according to product description.Agents useful for same or the unreceipted production firm person of instrument, being can by the conventional products of commercial acquisition.
Following examples material therefor: mesoporous material SAPO-60 (Shen Hao, silicon aluminium phosphate); Nucleator Surlyn 8920 (Du Pont, sarin resin); Lubricant PETS (dragon is husky, pentaerythritol stearate), antioxidant 1076/168 (by 1: 2 mass ratio mixing) (vapour clings to, four propionate/tri-[2.4-di-tert-butyl-phenyl] phosphorous acid ester); PBT-GX121 (viscosity 1.0dL/g) (Yizheng, Jiangsu); PC-1000R (melting means 10g/10min) (Yizheng, Jiangsu); Compatilizer AX-8900 (French Acker agate).
Each composition of the present invention does not limit the concrete model of above-mentioned concrete composition and businessman's purchase.
Embodiment 1: the preparation of exempting from primary coat product
Raw material (weight percent): in table 1.
Preparation method: said components is mixed in proportion in high mixer evenly, melt extruded by twin screw, granulation.Concrete complete processing is as follows: temperature range 230-250 DEG C, and screw speed is at 350r/min.
Tensile strength, notched Izod impact strength, heat-drawn wire, surface gloss, melting index and whether can in order to avoid primary coat all measures according to ASTM standard.The results are shown in Table 2.
Embodiment 2: the preparation of exempting from primary coat product
Raw material: in table 1.
Preparation method: with embodiment 1.
Tensile strength, notched Izod impact strength, heat-drawn wire, surface gloss, melting index and whether can in order to avoid primary coat all measures according to ASTM standard.The results are shown in Table 2.
Embodiment 3: the preparation of exempting from primary coat product
Raw material: in table 1.
Preparation method: with embodiment 1.
Tensile strength, notched Izod impact strength, heat-drawn wire, surface gloss, melting index and whether can in order to avoid primary coat all measures according to ASTM standard.The results are shown in Table 2.
Embodiment 4: the preparation of exempting from primary coat product
Raw material: in table 1.
Preparation method: with embodiment 1.
Tensile strength, notched Izod impact strength, heat-drawn wire, surface gloss, melting index and whether can in order to avoid primary coat all measures according to ASTM standard.The results are shown in Table 2.
Comparative example
Comparative example 1: raw material is in table 1, and preparation method is with embodiment 1, and examination criteria, with embodiment 1, the results are shown in Table 2;
Comparative example 2: raw material is in table 1, and preparation method is with embodiment 1, and examination criteria, with embodiment 1, the results are shown in Table 2;
Comparative example 3: raw material is in table 1, and preparation method is with embodiment 1, and examination criteria, with embodiment 1, the results are shown in Table 2;
Comparative example 4: raw material is in table 1, and preparation method is with embodiment 1, and examination criteria, with embodiment 1, the results are shown in Table 2;
Comparative example 5: raw material is in table 1, and preparation method is with embodiment 1, and examination criteria, with embodiment 1, the results are shown in Table 2;
Comparative example 6: raw material is in table 1, and preparation method is with embodiment 1, and examination criteria, with embodiment 1, the results are shown in Table 2.
The experiment proportioning table (weight percent) of table 1 embodiment 1-4 and each comparative example
Table 2 embodiment 1-5 sample test performance comparison table
As can be seen from Table 1 and Table 2, the formula of embodiment of the present invention 1-4, in the indices of detection, notched Izod impact strength is high, and heat-drawn wire is high, and surface gloss is good, has good processing fluidity simultaneously, meets the service requirements of exempting from basecoat material; Compared with comparative formula 1-6, there is obvious advantage.
Although illustrate and describe embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, those of ordinary skill in the art can change above-described embodiment within the scope of the invention when not departing from principle of the present invention and aim, revising, replacing and modification.
Claims (10)
1. high heat-resisting, high tenacity exempt from a primary coat product, it is characterized in that, prepared by the component of following weight percent,
PBT：64-74％；
PC：20-30％；
Compatilizer: 3-5%;
Mesoporous material: 0.5%;
Nucleator: 1.5%;
Lubricant: 0.5%;
Oxidation inhibitor: 0.5%.
2. high heat-resisting, high tenacity described in claim 1 exempt from primary coat product, it is characterized in that, prepared by the component of following weight percent,
PBT：68％；
PC：25％；
Compatilizer: 4%;
Mesoporous material: 0.5%;
Nucleator: 1.5%;
Lubricant: 0.5%;
Oxidation inhibitor: 0.5%.
3. high heat-resisting, high tenacity described in claim 1 exempt from primary coat product, it is characterized in that, described PBT is the PBT of middle low viscosity material, and viscosity is 0.8-1.0dL/g.
4. high heat-resisting, high tenacity described in claim 1 exempt from primary coat product, it is characterized in that, described PC is the PC of middle low viscosity material, and melting means is 10-20g/10min.
5. high heat-resisting, high tenacity described in claim 1 exempt from primary coat product, it is characterized in that, described compatilizer is the multipolymer of acrylate and glycidyl methacrylate.
6. high heat-resisting, high tenacity described in claim 1 exempt from primary coat product, it is characterized in that, described mesoporous material is the aluminosilicophosphate of aperture at the meso-hole structure of 2-50nm.
7. high heat-resisting, high tenacity described in claim 1 exempt from primary coat product, it is characterized in that, described nucleator is ionic polymer.
8. high heat-resisting, high tenacity described in claim 1 exempt from primary coat product, it is characterized in that, described lubricant is low molecule ester class.
9. high heat-resisting, high tenacity described in claim 1 exempt from primary coat product, it is characterized in that, described oxidation inhibitor is phenols and the composite component of phosphorous acid esters; Preferably, both mass ratioes are 1: 2.
10. claim 1-9 arbitrary described in exempt from the preparation method of primary coat product, it is characterized in that, step is
Raw material is taken by each weight percentages of components;
PBT, PC of taking and other additives are mixed 10-15min in high-speed mixer;
The raw material mixed is melt extruded by twin screw extruder, granulation, complete processing is as follows: temperature range 230-250 DEG C, and screw speed is at 350r/min.
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Cited By (1)
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| CN114213819A (en) * | 2022-02-21 | 2022-03-22 | 广东顺德顺炎新材料股份有限公司 | Wear-resistant primer-free PBT (polybutylene terephthalate) composite material |
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| WO2005071012A1 (en) * | 2004-01-13 | 2005-08-04 | Polyone Corporation | Use of a thermoplastic vulcanizate as an impact modifier in blends of polyester and polycarbonate |
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| CN102660109A (en) * | 2012-01-06 | 2012-09-12 | 聚威工程塑料(上海)有限公司 | PBT material with high flow, fine finish and no basecoat and preparation method thereof |
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| CN114213819A (en) * | 2022-02-21 | 2022-03-22 | 广东顺德顺炎新材料股份有限公司 | Wear-resistant primer-free PBT (polybutylene terephthalate) composite material |
| 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 |
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