TW201109386A - A blend of aromatic polycarbonate and polylactic acid, the method for preparing the same and the use thereof - Google Patents

Abstract

The present disclosure pertains to a blend of aromatic polycarbonate and polylactic acid, the method for preparing the same and the use thereof. In the present invention a transesterification catalyst is added during the preparing process with regard to the blend of aromatic polycarbonate and polylactic acid to improve the compatibility of the components in the blend. The blend of aromatic polycarbonate and polylactic acid is provided with the good mechanical properties, thermal processibility and flame retardance properties, and can be widely applied to mechanical product or parts, electronic equipments and/or parts, construction material and/or commodities.

Description

201109386 VI. INSTRUCTIONS OF THE INVENTION: TECHNICAL FIELD OF THE INVENTION The present invention relates to a resin, particularly a blend of an aromatic polycarbonate and a polylactic acid, and a process for the preparation thereof and use thereof. [Prior Art] The aromatic polycarbonate is intended to be a polymer having good transparency, mechanical properties (e.g., impact resistance), and flame retardancy. This group is widely used in engineering plastics and building materials. However, the thermal compatibility of this polymer is not sufficient for some applications. ‘Polylactic acid is a polymer with good biodegradability and tensile strength. This polymer is suitable for use in the fields of biomedical materials and environmentally friendly materials. Further, polylactic acid can be easily recycled. Lactic acid, a monomer of polylactic acid, can be produced by reproducible natural resources (such as y temple powder). However, polylactic acid is not only a brittle and low impact resistant material, but also has a low melt viscosity. Blending aromatic polycarbonate with polylactic acid is one of the possible advantages of combining the two polymers, but the poor compatibility between the two polymers causes significant phase separation and greatly reduces the mechanical properties of the blend. performance. JP2007056247, JP2006111858 and JP2006199743 disclose a method for improving the properties of a blend of an aromatic polycarbonate and a polylactic acid by adding a compatibilizing agent comprising: an acrylic resin or a stupid vinyl resin as a substrate A graft copolymer, a copolymer based on a propylene oxide or an anhydride, and a vinyl graft copolymer. While the compatibilizer improves the mechanical properties of the blend of aromatic polycarbonate and polylactic acid 4 201109386, the compatibilizer enhances the manufacturing cost of the σ aromatic barrier blend. Yishui Lie zhizhizhi (10) Zhong Tan and ΕΡ1792941 reveal a method to improve the blend of aromatic poly-g-g| and polylactic acid by adding chain growth (4), wherein the chain extender includes: diisocyanate, Bisphenol A epoxidation of di yt ^ ^ and 'this method will greatly increase the solubility of the mer aryl - the molecular weight of the blend of the target and polylactic acid, making the blend add a difficult and strong It is therefore an object of the present invention to provide a blend of economical sulphuric acid vinegar and polylactic acid having the following modifications: In addition, the object of the present invention is to provide mechanical products and electrical equipment and/or parts, building materials and/or daily necessities, ^ =:=? The use of the product and the blend of arylpolycarbonate and sage I for the manufacture of mechanical products and/or parts, + and/or parts, building materials and/or daily necessities. </ br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br> )) as a benchmark; eight', (b) = 5 parts by weight of a polylactic acid based on 100 parts of the injured components (a) and (b); and (4) 0 · 〇 5 to 1 part by weight The acetalization catalyst is based on [201109386 100 parts by weight of components (4) and (b). The blend may additionally comprise: (d) from 1 to 25 parts by weight of a flame retardant based on 100 parts by weight of components (a) and (b); and (e) from 0.3 to 2 parts by weight. A fluorine-based resin is preferably used in an amount of 0.5 to 2 parts by weight based on 100 parts by weight of the components (a) and (b). The blend may additionally comprise: (f) 0.5 to 10 parts by weight of an additive based on 100 parts by weight of components (a) and (b); wherein the additive is selected from the group consisting of: a lubricant , release agents, nucleating agents, stabilizers, fillers, reinforcing agents, antistatic agents, dyes, and / or pigments. The foregoing problems can be additionally solved by using a method of preparing a blend of an aromatic polycarbonate and a polylactic acid comprising blending components (a), (b), and (4): (a) 5 to 95 by weight An aromatic polycarbonate based on 100 parts by weight of components (a) and (b); (b) 95 to 5 parts by weight of a polylactic acid in a component of 100 parts by weight (a) and (b) are based; and (c) 0.05 to 1 part by weight of a transesterification catalyst based on 100 parts by weight of components (a) and (b). The method may additionally comprise the addition of: (d) from 1 to 25 parts by weight of a flame retardant based on 100 parts by weight of components (8) and (b); and/or 6 201109386 (e) 0.3 to 2 by weight One part by weight of 0.5 to 2 parts by weight of the substrate of the preferred substrate: 'based on components (a) and (b). The method may further include adding: (^*) 0.5 to _ _ 重量 by weight of an additive which is twisted by 100: and; i): (b) is a reference; The taiga agent is selected from the group consisting of: bismuth, mold release agent, nucleating agent, stabilizer, metal enhancer, antistatic agent, transfer, and/or pigment. Advantages of the composition of the present invention include the incorporation of a lower carbonate with a feed. The compatibility of the polymerized component in the aromatic group is changed. The blending catalyst has a good mechanical property;:::=== The r can be widely applied to mechanical products:; and/or parts, building materials and/or enamel products. DETAILED DESCRIPTION OF THE INVENTION Group: Blends of a mixture of a polycarbonate and a polylactic acid include a blend of cut ab, and e. [Component a] The average amount of aromatic polycarbonate is §, the weight of this aromatic polycarbonate is = 2; (. = measured by permeation chromatography) can be selected from the following, i 4 ' to 2 〇〇, 〇〇 〇' is better from 15,000 to 80 000 A, = 4, _ to 32, _ is the best. , to, 000 for the car exchange "poly" can be made, for example: use - kind disclosed in 201109386 DE-A 1495626, DE-A 2232877, DE-A 2703376, DE-A 2714544 'DE-A 3000610, And the method of DE-A 3832396. Aromatic polycarbonates can be obtained by, for example, an aromatic dihydroxy compound (hereinafter referred to as diphenol) and a carbonic acid compound and/or with an aromatic ditoponic acid. The bis-compound is converted. The carbonic acid halide may be phosgene, but is not limited. The aromatic bis-acid diester may be selected from the group consisting of benzoic acid dihalide, but is not limited. According to the phase interface method Alternatively, a chain terminator or a branching agent may be used, and the chain terminator may be selected from monophenols, but is not limited. The branching agent may be selected from the following, but is not limited to: trifunctional or more than trifunctional. The branching agent is preferably trisphenol or tetraphenol. Similarly, the aromatic polycarbonate can also be obtained by melt polymerization by dimerization of diphenol and diphenyl carbonate. For those who have the formula (1), Γ (8) Ί

广 ^ Ψ ' 〇 H H. Each - L Jp wherein A is a single bond 'better is: Ci to C5 extended alkyl, c2 to C5-alkylene, C5 to C6-cycloalkylene, -〇-, -SO-, -CO- , each, _s〇2_, C6 to Ca extended aryl. A may additionally comprise: an aromatic brick, a hetero atom, or a group of formula (II) or (III). 8 201109386

B may be selected from (^ to C12 alkyl or halogen, but not limiting; (^ to C12 alkyl may be selected from methyl, but not limiting; halogen may be selected from chlorine and/or bromine, but not limiting; X is independently in each case: 0, 1, or 2; ρ is 1 or 0; R5 and R6 can be individually selected for each X1, each independently: hydrogen, or Ci to C6 alkyl, Hydrogen, mercapto or ethyl is preferred; X1 is carbon; and m represents an integer from 4 to 7, preferably 4 or 5, provided that: at least one X1 atom, on which R5 and R6 are present At the same time, it is an alkyl group. The diphenol can be selected from, but not limited to, hydroquinone, resorcinol, dihydroxydiphenol, bis(hydroxyphenyl)-CrC3-alkane, bis(hydroxyphenyl)-C5- C6-cycloalkane, bis(hydroxyphenyl)ether, bis(hydroxyphenyl)sulfoxide, bis(hydroxyphenyl)ketone, bis(hydroxyphenyl)sulfone, α,α-bis(hydroxyphenyl)di Cumene, and its brominated and/or chlorinated derivatives on the ring. The preferred diphenols are: 4,4'-dihydroxydiphenylbisphenol-indole, 2,4-di (4) -hydroxyphenyl)-2-methylbutane, 1,1-bis(4-hydroxyphenyl)cyclohexane, 1,1-bis(4-hydroxyphenyl)-3,3,5-triazine Base ring , 4,4'-dihydroxydiphenyl sulfide, 4,4'-dihydroxydiphenyl [S } 201109386 oxime, and its dibrominated and tetrabrominated or chlorinated derivatives, for example: 2, 2-bis(3-oxo-4-hydroxyphenyl)propane, 2,2-bis(3,5-dichlorohydroxyphenyl)propane, or 2,2-bis(3,5-dibromo-4) -Hydroxyphenyl)propane. The most preferred diphenol is 2,2_-(4-phenyl)propane (double _A). The two can be used individually or in the form of any mixture. It is known in the literature that it can be obtained by a conventional method. The chain terminator can be selected from, but not limited to, p-chlorophenol, p-tertiary butyl phenol, long-chain alkyl phenol, and long-chain alkyl phenol. Selected from, but not limited to, 4-[2-(2,4,4-tridecylpentyl)phenol, 4-(1,3-tetramethylbutyl)phenol, monoalkylphenol, dioxane a phenol having a total of 8 to 20 carbon atoms in the alkyl substituent, for example, 3,5-di-tertiary butyl phenol, p-isooctyl phenol, p-tertiary octyl stupid And '2-(3,5-dimethylheptyl), and = heptyl) phenol. The amount of chain terminator is 〇5 to 1〇 mol%, and the bean is used in each case. 〇〇 耳 % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % % Molar %: make = more functional compound with three or more stupid groups... cut 1 from the second emulsion, non-isophthalic acid, terephthalic acid, diphenyl, more The preferred one is a mixture of isophthalic acid and terephthalic acid diacid-vapor, in a ratio of i: 2G*2. The aromatic polycarbon sense may be selected from the group including double _ but not limited.酉曰, 201109386 The aromatic polycarbonate is used in an amount of 5 to 95 parts by weight, preferably 5 to 9 parts by weight, more preferably 70 to 90 parts by weight, based on 100 parts by weight of component a. With b as the benchmark. [Component b] Component b is a polylactic acid. Component b may be selected from the group consisting of, but not limited to, poly-L-lactic acid, poly-D-lactic acid, or a mixture thereof. The weight average molecular weight of polylactic acid (measured by condensed cross-penetration chromatography) may be selected from the following, but not limited to: 15,000 to 1,000,000, 40, 〇〇〇 to 1 〇〇, 〇〇〇 is preferred, to 80,000 It is better to 100,000. The purity of the polylactic acid is not particularly limited, and the polylactic acid preferably includes 80% by weight or more of poly-L-lactic acid and/or poly-D-lactic acid, and the polylactic acid more preferably includes 90% by weight or more of poly-L_. Lactic acid and / or poly D_lactic acid. The polylactic acid is used in an amount of 95 to 5 parts by weight, preferably 50 to 1 part by weight, more preferably 30 to 10 parts by weight, based on 1 part by weight of the components a and b. [Component c] Component c is a transesterification catalyst. The transesterification catalyst is a catalyst which promotes the transesterification reaction between the aromatic polycarbonate and the polylactic acid. The transesterification catalyst may be selected from the group consisting of, but not limited to, Lewis acids, nitrogen-containing compounds, alkali metal salts, and alkaline earth metal salts. The Lewis acid may be selected from the group consisting of tin compounds, compounds, ruthenium compounds, rhodium compounds, and boron compounds. The tin compound y is selected from the following 'but not limited to: dibutyltin oxide, tin oxalate, and tin acetate. The titanium compound may be selected from the following, but is not limited to: tetrabutyl titanate [201109386 ester, tetraalkyl titanate, flute acid titanate, and titanium dioxide. The recorded compounds are optional but not limited to ten students: trioxide and tartaric acid. The compound can be from the following non-limiting: zinc stearate and zinc acetone. The boron compound may be selected from the group consisting of τ 八 八, but not limited to: triphenyl boron and zinc borate. The s 5 may be selected from the following, but is not limited to: a quaternary amine hydroxide 'a (four)' secondary amine, a -amine, and a nitrogen-containing heterocyclic compound. The quaternary amine hydrate can be NR4+(qH.), wherein the reverse is 院3 1 to 25 fluorene atomic or aryl groups. The quaternary amine hydration hopper may not be selected from the group consisting of, but not limited to, tetradecylamine hydroxide, tetraethylamine hydroxide, tetrabutylamine hydroxide, and tetraphenylamine hydroxide. The tertiary amine can be represented by the formula NRs wherein R is an alkyl or aryl group containing from 1 to 25 carbon atoms. The tertiary amine may be selected from the group consisting of, but not limited to, trimethylamine, diethylation, dioctylamine, triphenylamine, and diphenylmethylamine. The secondary amine can be represented by the formula NHR2 wherein R is an alkyl or aryl group containing from 1 to 25 carbon atoms. The secondary amine may be selected from the group consisting of, but not limited to, di-n-propylamine and diphenylamine. The primary amine can be represented by the formula NH2R wherein R is an alkyl or aryl group containing from 1 to 25 carbon atoms. The primary amine can be selected from the group consisting of, but not limited to, n-octylamine and aniline. The gas-containing heterocyclic compound may be selected from the following, but is not limited to: pyridine, mercaptopyr. Ding, methoxy D is more than biting, dripping, and ° m β sitting. The metal salts may be selected from the following, but are not limited: metal hydroxides, metal hydrides, metal guanamines, metal carbonates, metal phosphates, metal detectors Acid salts, and organic salts of metals. The organic salt of an alkali metal may be selected from the following 'but not limited to: an alkali metal organic acid, a metal age salt, and a metal oxide. The alkali metal may be selected from the group consisting of lithium, sodium, and potassium. 12 201109386 Alkaline earth metal may be selected from the following, but not limited: hydroxide of alkaline earth metal, hydride of soil test metal, amine of soil test metal, carbonate of soil test metal, phosphate of alkaline earth metal, alkaline earth a borate of metal and an organic salt of a soil of a soil. The organic salt of the soil-measuring metal may be selected from the following, but is not limited: an organic acid salt of the soil-measuring metal, a salt of the soil of the soil, and a glazing oxide of the soil. The soil test metal can be selected from the following, but not limited: magnesium, #5, and 钡. It is more preferable to use Lewis acid as the transesterification catalyst, and it is preferred to use tetrabutyl titanate and dibutyltin oxide as the transesterification catalyst. The transesterification catalyst is used in an amount of from 0.05 to 1 part by weight, preferably from 0.1 to 0.5 part by weight, more preferably from 0.1 to 0.2 part by weight, based on 100 parts by weight of the components a and b. [Components d and e] In the present invention, the component of the blend of the aromatic polycarbonate and the polylactic acid may alternatively include the components d and e. Component d is a flame retardant. The flame retardant improves the flame retardancy of the blend of the aromatic polycarbonate and the polylactic acid. The flame retardant may be selected from the following, but not limited to: a bromine-based flame retardant, a phosphorus-based flame retardant, a nitrogen-based flame retardant, a ruthenium-based flame retardant, And other inorganic flame retardants. The bromine-based flame retardant may be selected from the following, but not limited to: tetrabromobisphenol-A epoxy oligomer, tetrabromobisphenol-A carbonate oligomer, and desertified epoxy resin. . The phosphorus-based flame retardant may be selected from the group consisting of, but not limited to, phosphates, polyphosphates, and organophosphate salts, which are hindered by phosphorus [13 201109386. Preferably, the fuel is selected from the group consisting of The group includes: monomer-and oligomeric phosphoric acid I and phosphonate, phosphonic acid amine, and phosphazene. Preferred monomer-and oligomeric carboxylic acid esters or phosphonates include phosphorus compounds of formula (VIII)

R

(vm) wherein R1 'R2, R3 and R4 are each independently represented in each case: a selectively halogenated Ci to Cs-alkyl or C5 to c6-cycloalkyl, c6 to C2〇-aryl or C« 7 to Ci2_arylalkyl group is optionally substituted in each case by an alkyl group, preferably a Q to CV alkyl group, and/or a halogen, preferably a gas or a bromine, and η are each independently The ground represents 0 or 1, q represents 〇 to 3 〇, and X represents a mono- or polycyclic aromatic group having 6 to 30 carbon atoms, or a linear or branched fat having 2 to 30 carbon atoms. A group of groups which may be substituted by OH and may contain up to 8 ether linkages. R ′ R 2 , R 3 and R 4 preferably each independently represent: Ci to C 4 —alkyl, phenyl, naphthyl, or phenyl-CrC4-alkyl. The aromatic group R1 'R2, R3 and R4 may be substituted by a halogen group and/or an alkyl group, preferably chlorine, bromine, and/or Cl to C4_alkyl, particularly preferred aryl group.圑 is: phenolic, phenyl, xylyl, propyl benzene 201109386 x mono- or polycyclic aromatic group, the second of the anaesthetic needle I is derived from the formula (1) 7 (VIII) They can each independently be 0. q represents the number from 0 to 30,. M s flat and live is also 1 ^ in 乂〇.3 to 20 is better, with 0.5 to 10 is particularly good, especially I n special (1) 疋Ο. 5 to 6, with 1_〇5 to 1.6 is very special Good, to 1.05 to! .2 is the best. Correction

The hydrazine can also be used as a mixture of the _acid salts of the present invention, which can be prepared as: tributyl phosphate, ~ benzyl salt, tricresyl phosphate, _ salt, diphenyl Octyl phosphate, m-based ketone-based linonic acid = _ 孓 孓 ethyl cresyl phosphate, age: ί" salt, meta-benzene (four) bridge of shale, and Α - bridge (4) Acid salt. Particularly preferred is the oligophosphate of formula (VIII). 7 phenolic phenol' 15 201109386 The best component e is the bisphenol A based on the formula (vnIa). Oligophosphate

(Villa) where q in the formula represents a value from 1〇5 to 12. Phosphorus compounds according to component e are conventional (see, for example, Ep_A 0363608, EP-A 0640655), or can be prepared in a similar manner using conventional methods (for example: Ullmanns Encyclopedia of Industrial Chemistry, Vol. 18, p. 301 , 1979; Houben-Weyl 'Methods of Organic Chemistry, Vol. 12/1, p. 43; Beilstein, vol. 6, p. 177). If a mixture of various phosphorus compounds is used and in the case of oligophosphorus compounds, the q value is the average q value, and the average q value can be determined by measuring the composition of the phosphorus compound (molecular weight distribution) via a suitable method (gas chromatography) The method (GC), high pressure liquid chromatography (HPLC), and gel permeation chromatography (GPC) were determined to determine the average value of q. Phosphonic acid amines and phosphazenes, such as those described in WO-A 00/00541 and WO-A 01/18105, can also be used as flame retardants. The flame retardant based on the nitrogen compound may be selected from the following, but is not limited to: a nitrogen heterocyclic compound. The fluorene-based flame retardant may be selected from the following, but not limited to: anthrone resin, and anthrone oil. Other potentially useful inorganic flame retardants may be selected from the group consisting of, but not limited to, aluminum hydroxide, zinc borate, and porous graphite. The flame retardant can be used as such, or in any mixture with each other, or as a mixture of 201109386 with other flame retardants. * * /*,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, The parts by weight are based on the basis. J is a resin based on fluorine. For the blend of aromatic polycarbonate peaches, the fluorine-based matrix can improve the drip-proof performance when burned. The fluorine-based resin may be selected from, but not limited to, a polymer comprising a carbon-carbon backbone of fluorine in the early 70th. The fluorine-based resin is preferably a mixed powder of the poly read (tetra), wherein the mixed powder of polytetrafluoroethylene is composed of polytetrafluoroethylene and an organic polymer. The organic polymer may be selected from the following, but not limited to: styrene acrylonitrile, and the fluorine-based resin preferably has a weight average molecular weight of 100,000 to 1, 〇〇〇, 〇〇〇. Other suitable organic polymers are, for example, polyacrylic acid esters

° The ratio of PTFE present in the four-preferred compound (mixed powder) is from 3% by weight, preferably from 40 to 60% by weight, and most preferably from 4 Torr to 55% by weight. Suitable blends are commercially available, for example, from GE Specialty Chemicals, Inc. under the tradename Blendex® 449, or from the Metablen-A series of products from Mitsubishi Rayon Corporation. The blend can be prepared by mixing a PTFE emulsion with a suitable blending partner emulsion. The blend can be obtained from a mixture obtained by a suitable procedure, such as: agglutination, cold; bundle drying, spray drying, and the like.

The fluorine-based resin is used in an amount of 0.3 to 2 parts by weight, preferably 0.5 to 2 parts by weight, more preferably 5 to 1.5 parts by weight, and more preferably [S 17 2〇1109386 to 1.5 parts by weight. The best is based on 1 〇〇 and b. The private component a [fractions of η parts of carbon Γ 1 and polylactic acid compound component f is an additive, the additive is at least ~ 蛘 group includes: lubricant, release agent (for example: season Bei = broadcast electric twin carbon black, carbon fiber, metal fiber, carbon nanotube, and any electrostatic agent, such as: polyalkylene ether, alkyl sulfonate, or polymer containing phthalamide), dye And pigments. 5, the dosage of the additive is preferably 0.5 to 10 parts by weight, more preferably 0 to 5 parts by weight, based on the component of bismuth (8) by weight [suitable preparation method and use thereof] The method of the present invention is used to prepare an admixture of an aromatic polycarbonate and a polylactic acid, and suitably comprises: blending components a, b, and e to obtain a blend of money and poly. The appointee component may additionally include components d and e. The component may additionally comprise component f. Heart = 22 The components were melt blended to obtain an aromatic polycarbonate. The temperature of the melt blending is advantageously equal to or higher than the melting point of 77, and is advantageously also lower than the decomposition of component b. The suitable blending temperature can be determined by the ratio of the aromatic poly-wei and the poly-emulsion 18 201109386. The higher the content of the aromatic polycarbonate, the higher the temperature of the melt blending should be. The melt blending temperature may be selected from the following, but is not limited thereto: 210 to 260 ° C, preferably 220 to 230 ° C. The blend of aromatic polycarbonate and polylactic acid can be processed into various products by any method such as extrusion molding, injection molding, blow molding, spinning into fibers, and the like. For example, by extrusion molding, a blend of an aromatic polycarbonate and a polylactic acid can be formed into a film, a foamed film, a flake, a tube, a rod, a wire, a fiber, and/or other types of extrusion. Molded products. Another example is that a blend of an aromatic polycarbonate and a polylactic acid can be processed into injection molded products of different shapes via injection molding. Blends of aromatic polycarbonates and polylactic acids can be used in the manufacture of mechanical products and/or parts, electronic devices and/or parts, building materials and/or enamel articles. Mechanical products and/or parts include, but are not limited to, engine components for fittings, bearings, gears, valves, stretches, pedestals, pallets, and/or machinery. Electronic equipment or parts include, but are not limited to, enclosures, caps, parts, switches, stretches, pedestals, and/or pallets of electronic equipment. Building materials include the following, but are not limited to: film sheets, daylight mirror panels, durable siding, light boxes, window frames, and/or curtain walls.曰 supplies include, but are not limited to, food containers, liquid containers, toys, office equipment, sporting goods, and/or magnetic sheets. EXAMPLES The present invention is illustrated by the following examples, which are intended to illustrate the invention but not to limit the scope of the invention. Not specifically described [s ] 19 201109386 The values are by weight. The following methods are used. In the case of 〇, the performance shown in the table corresponding to the examples is shown in (1) Tensile properties are obtained by injection--thickness is 4. Tensile resistance of the sample of the tensile test ^^ sample (4) Method of milk (50 亳 / min) = crack elongation according to (2) impact performance °

Manufactured by injection molding - thickness in impact strength test, sample impact strong household „product use. ΙΑ method (23t:, 5 5 joules) test 2, and according to ISC (3) melt index kg) using plastic according to ISO 1133 method (24〇〇c, 5 pellets test melt index. (4) Flame retardant properties, a size of 127 mm χ12·7 亳m X 3.2亳 样 ^ 秘 秘 秘In the experiment, the Lai performance was tested according to the American standard UL-94 vertical burning test method. From ^ to below, the grade of flame retardant performance was evaluated from v 〇, V1 to, and the samples inconsistent with the above evaluation were considered as inconsistent. Standards Examples 1 to 6 'Comparative Examples C1 to C5: Table 1 is in accordance with Examples 1 to 4 and Comparative Examples C1 to C3. Table 2 is in accordance with Examples 5 to 6 and Comparative Examples C4 to C5. The data in Table 2 is blended with the following components: (a) A polycarbonate resin having a weight average molecular weight of 26,000, wherein the weight average molecular weight is measured by gel permeation 20 201109386 chromatography; The styrene standard sample is such that (b) has a weight average molecular weight of ι〇〇, _ The weight average molecular weight of lactic acid, f is measured by gel permeation chromatography and is equivalent to the standard sample of polyethylene; (C) tetrabutyl titanate, wherein the purity is 99 5 〇 / 〇. The double-screw extruder of glutinous rice melts and blends the components in a round force of 22 〇ΐ and a rolling speed of 9 rpm, and extracts the melting line from a die. Cold air is applied. Cooling, followed by obtaining a granulated resin group from a standard cutter = 0 and testing the blend of aromatic polycarbonate and polylactic acid according to the method described in (1) to (4). The performance and test results are shown in Tables 1 and 2. To 4 and Comparative Examples C1 to C3 - Example Comparison Example 1 2 3 4 C1 C2 C3 Double A polycarbonate (8) Parts by weight 80 80 80 80 0 100 80 Lactic acid (6) Parts by weight 20 20 20 20 100 0 20 Tetrabutyl titanate (c) Parts by weight 0.1 0.2 0.5 1.0 0 0 0 Tensile coefficient MPa 2627 2687 2726 2792 3560 2447 2617 Elongation at break % 106.0 113.3 120.1 130.0 6.4 118.1 93.0 Melt Volume Velocity (MVR) Bu·Cubic centimeters/10 minutes 7.8 13.6 13.9 10.5 41.2 1 0.8 9.1 Impact strength 仟 joules / square meter 7.4 6.8 6.3 2.3 2.7 67.0 7.2

[S 21 201109386 According to Examples 1 to 4 and Comparative Examples C1 to C3: Resins containing pure aromatic polycarbonate (e.g., bisphenol A polycarbonate) have good tensile strength, elongation at break, and impact strength. However, the melt flow of the aromatic polycarbonate resin is not good, that is, its hot workability is not good. A resin containing pure polylactic acid (e.g., poly-L-lactic acid) exhibits good melt fluidity and tensile properties. However, the elongation at break and impact strength of the polylactic acid resin are not good, that is, the polylactic acid resin is brittle. The blend of the aromatic polycarbonate and the polylactic acid (excluding the transacetal catalyst, C3) has a poor phase grain property, so that the elongation at break and the tensile properties are not satisfactory. Due to improved compatibility, a blend of aromatic polycarbonate, polylactic acid, and a transesterification catalyst (for example, tetrabutyl titanate) has good impact strength, elongation at break, tensile properties, And characteristics such as melt flow. Table 2: f Example 5 to ό and Comparative Example C4 to C5 Example Comparative Example 5 6 C4 C5~ bisphenol hydrazine polybe weight parts 90 10 90 10 Polylactic acid (b) _1 - parts by weight 10 90 10 90 Titanium 醆 four Butyl ester parts by weight 0.5 0.5 0 0 Tensile coefficient __- MPa 2618 3536 2496 3449 Elongation at break ______ % 101.9 39.0 85.0 35.3 Melt volume velocity (MVR) ____ Cubic centimeters / 10 minutes 22.9 105.2 9.8 64.9 Impact strength ___仟 joules per square meter 6.2 3.2 7.3 3.5 22 201109386 According to Example 5 and Comparative Example 4: 曰 For the blend of aromatic polycarbonate _ and polylactic acid, it includes a singularity of polycarbonate (for example: Double-anti-polycarbonate §), low = poly-milk (for example: poly, and _ catalysis _ such as 2 SI brew V its tensile coefficient and elongation at break is better than aromatic polycarbonate I, ♦ secret blend The compound (4) is a polycondensation catalyst and a polylactic acid non-transesterification catalyst, and has a tensile coefficient and elongation at break. In summary, the compatibility of the blend can be improved by adding the conversion. , the blend of aromatic polycarbonate, polylactic acid, and trans-acetic acid agent not only has the superiority of aromatic polycarbonate And with the advantages of polylactic acid, the blend has a good physical balance. Examples 7 to 11, Comparative Example C6: Table 3 is in accordance with Examples 7 to u and Comparative Example C6. The following components are listed in the table. The data in 3 is blended: (a) having a bisphenol A polycarbonate resin having a weight average molecular weight of 26 Å, wherein the weight average molecular weight is equivalent to the polystyrene = dilute standard sample; (b) having one a weight average molecular weight of 1 〇〇, 聚 lactic acid, wherein the weight average molecular weight is equivalent to a polystyrene standard sample; 7 (c) tetrabutyl titanate, wherein the purity is 99 5 〇 / 〇; (d) Bisphenol A bis(diphenyl phosphate), high purity, (available from Daihachi Chemical Industries, Inc. / CR74); (e) Polytetrafluoroethylene mixed powder (Blendex@ 449) 0 Using a diameter of 25 鼋The double-screw extruder of rice is melt-blended under the conditions of cylinder temperature [. 23 201109386 degrees 220 ° C and rolling speed of 9 rpm, I from a mold The head draws out the molten wire, cools it with cold air, and then obtains granulation from a standard cutter. The resin composition was tested according to the methods described in (1) to (4), and the test results are shown in Table 3. Table 3: Examples 7 to 11 and Comparative Example C6 Examples Comparative Example 7 8 9 10 11 C6 Bisphenol A Polycarbonate (a) Parts by weight 80 80 80 80 90 80 Polylactic acid (b) Parts by weight 20 20 20 20 10 20 Tetrabutyl titanate (c) Parts by weight 0.1 0.2 0.5 0.75 0.5 0 Bisphenol VIII (filling acid - this S parts by weight 15 15 15 15 15 15 PTFE mixed powder (e) Parts by weight 1 1 1 1 1 1 Tensile coefficient MPa 3149 3091 3113 3206 3184 2518 Elongation at break % 32.8 12.2 13.9 8.1 22.9 12.5 Volumetric velocity of solution (MVR) Cubic centimeters / 10 minutes 34.2 33.3 59.2 76.6 50.7 25.7 Impact strength 仟 Joules / m ^ 2 4.1 4.4 3.4 2.9 2.6 4.5 Flame retardancy rating V-0 V -0 V-0 V-0 V-0 V-1 According to Examples 7 to 11 and Comparative Example C6, flame retardants (for example: bisphenol A bis(diphenyl phosphate)) and fluorine-based resins can be used. Addition to the component 'to improve the flame retardancy and hot workability of the blend of aromatic polycarbonate and polylactic acid, and maintain its mechanical properties . Although the present invention is illustrated by way of example, it is not limited in any way to the present examples. The skilled artisan can arbitrarily modify and modify the present invention without departing from the spirit and scope of the invention. The protection of the present invention is based on the scope defined by the scope of the patent application of the present application. [Reciprocal References for Related Applications] This whistle is claimed to have priority from the following: Chinese Patent Application No. 200810042811.2, filed on Sep. 11, 2008, the entire disclosure of which is incorporated herein by reference. [Simple description of the diagram] None. [Main component symbol description] None. 25

Claims (1)

201109386 VII. Patent Application Range: 1. A blend of aromatic polycarbonate and polylactic acid, comprising: (a) 5 to 95 parts by weight of an aromatic polycarbonate, which is 100 parts by weight. The components (a) and (b) are based on; (b) 95 to 5 parts by weight of a polylactic acid based on 100 parts by weight of components (a) and (b); and (c) 0.05 Up to 1 part by weight of a transesterification catalyst based on 100 parts by weight of components (a) and (b). 2. A blend of an aromatic polycarbonate and a polylactic acid according to claim 1 of the patent application, wherein the blend additionally comprises: (d) 1 to 25 parts by weight of a flame retardant, which is 100 weight Parts (a) and (b) are based on; and (e) 0.3 to 2 parts by weight of a fluorine-based resin based on 100 parts by weight of components (a) and (b) . 3. A blend of an aromatic polycarbonate and a polylactic acid according to claim 2, wherein the blend additionally comprises: (f) 0.5 to 10 parts by weight of an additive, which is 100 parts by weight The components (a) and (b) are reference; wherein the additive is at least one member selected from the group consisting of: a lubricant, a mold release agent, a nucleating agent, a stabilizer, a filler, a strengthening agent, an antistatic agent, a dye, and pigment. 4. A blend of an aromatic polycarbonate and a polylactic acid according to claim 1 wherein the aromatic polycarbonate is used in an amount of 70 to 90 parts by weight, and the polylactic acid is used in an amount of 30 to 10 parts by weight. Parts are based on 100 parts by weight of components (a) and (b). 26 201109386 5· A blend of an aromatic polycarbonate and a polylactic acid according to claim 1 wherein the transesterification catalyst is used in an amount of from 0.1 to 0.5 parts by weight, based on 100 parts by weight of the component (8) And (b) as the benchmark. 6. The blend of an aromatic polycarbonate and a polylactic acid according to claim 1, wherein the transesterification catalyst is selected from the group consisting of: Lewis acid, nitrogen-containing compound, metal salt, and Soil test metal salts. 7. The blend of an aromatic polycarbonate and a polylactic acid according to claim 6 of the patent application, wherein the transesterification catalyst is selected from the group consisting of: dibutyltin oxide, tin oxalate, tin acetate, titanic acid Tetrabutyl ester, tetraphenyl phthalate, titanium oxalate, titanium dioxide, antimony trioxide, strontium tartrate, zinc acetate, zinc stearate, zinc acetoacetate, triphenylboron, zinc borate, tetramethylammonium hydroxide , tetraethylamine hydroxide, tetrabutylamine hydroxide, tetraphenylamine hydroxide, trimethylamine, triethylamine, trioctylamine, triphenylamine, diphenylmethylamine, alkyl secondary amine, aryl II Amines, alkyl primary amines, aryl primary amines, pyridine, decyl pyridoxine, methoxy ° ratio, 喧 ° lin, sodium saliva, metal hydroxides, metal hydrides, test Metal amine, metal carbonate, metal salt, metal borate, metal organic salt, soil metal hydroxide, soil metal hydride, soil test metal Amine, carbonate of soil test metal, acid salt of soil test metal, side acid salt of soil test, and inspection The organic metal salt. 8. A blend of an aromatic polycarbonate and a polyemulsion [S 27 201109386 acid according to claim 7 of the patent application, wherein the transacetal catalyst is tetrabutyl titanate. 9. A blend of an aromatic polycarbonate and a polylactic acid according to claim 1 wherein the aromatic polycarbonate is bisphenol A polycarbonate. 10. The blend of an aromatic polycarbonate and a polylactic acid according to claim 1, wherein the polylactic acid is selected from the group consisting of poly-L-lactic acid and poly-D-lactic acid. 11. A blend of an aromatic polycarbonate and a polylactic acid according to claim 2, wherein the flame retardant is selected from the group consisting of: tetrabromobisphenol-A epoxy oligomer, tetrabromo double Phenol-A carbonate oligomer, brominated epoxy resin, phosphate ester, poly-salt ester, organic phosphate salt, nitrogen heterocyclic compound, anthrone resin, anthrone oil, aluminum hydroxide, zinc borate And porous graphite. 12. The blend of an aromatic polycarbonate and a polylactic acid according to claim 2, wherein the fluorine-based resin is a mixed powder of polytetrafluoroethylene and a mixed powder of polytetrafluoroethylene. The weight average molecular weight is 1 〇〇, 〇〇〇 to 1, 〇〇〇, 〇〇〇. 13. A method of preparing a blend of an aromatic polycarbonate and a polylactic acid, comprising blending components (a), (b), and (C): (a) 5 to 95 parts by weight of a part of aromatic a family of polycarbonates based on 100 parts by weight of components (a) and (b); (b) 95 to 5 parts by weight of a polylactic acid, which is 100 parts by weight of component (a) (b) As a basis; (c) 0.05 to 1 part by weight of a transesterification catalyst based on 28 201109386 100 parts by weight of components (a) and (b). 14. The method of claim 13, further comprising blending (d) and (e) with (a), (b) and (4): (d) from 1 to 25 parts by weight of a flame retardant, It is based on 100 parts by weight of components (a) and (b); and (e) 0.3 to 2 parts by weight of a fluorine-based resin, which is a component of 100 parts by weight (a) ) and (b) are benchmarks. 15. According to the method of claim 14 of the patent application, which additionally comprises blending (f) with (a), (b), (c), (d), and (e) (f) 0.5 to 10 parts by weight An additive which is based on 100 parts by weight of components (a) and (b); the additive is selected from the group consisting of: a lubricant, a release agent, a nucleating agent, a stabilizer, a filler, a reinforcing agent, Antistatic agents, dyes, and pigments. 16. The method according to claim 13, wherein the aromatic polycarbonate is used in an amount of 70 to 90 parts by weight, and the polylactic acid is used in an amount of 30 to 10 parts by weight, based on 100 parts by weight of the component. (a) and (b) are benchmarks. 17. The method according to claim 13, wherein the transesterification catalyst is used in an amount of from 0 to 0.5 parts by weight based on 100 parts by weight of the components (a) and (b). 18. The method according to claim 13, wherein the blending step is carried out at a temperature equal to or higher than the melting point of the component (b). 19. The method according to claim 13, wherein the transesterification catalyst is selected from the group consisting of: Lewis acid, nitrogen-containing compound, [s] 29 201109386 metal salt, and soil metal salt. 20. The method according to claim 19, wherein the transesterification catalyst is selected from the group consisting of: dibutyltin oxide, tin oxalate, tin acetate, tetrabutyl titanate, tetrakis tetraacetate, Titanium oxalate, titanium dioxide, antimony trioxide, strontium tartrate, acetic acid, zinc stearate, zinc acetoacetate, triphenyl boron, zinc borate, tetradecylamine hydroxide, tetraethylamine hydroxide, tetrabutyl Amine hydroxide, tetraphenylamine hydroxide, tridecylamine, triethylamine, trioctylamine, triphenylamine, diphenylguanamine, alkyl secondary amine, aryl secondary amine, alkyl primary amine, aryl Primary amine, ° ratio σ, methyl 0 ratio bite, methoxy alpha ratio bite, 啥 、, ° meter ° sit, metal hydroxide, metal hydride, metal amide, metal test Carbonate, metallurgical acid salt, metal borate, alkali metal organic salt, alkaline earth metal hydroxide, soil metal hydride, soil metal amide, soil metal carbonate The organic acid salt of the soil test, the shed acid salt of the soil tester, and the organic salt of the alkaline earth metal. 21. The method according to claim 20, wherein the transesterification catalyst is tetrabutyl titanate. 22. The method of claim 13, wherein the aromatic polycarbonate is bisphenol fluorene polycarbonate. 23. The method of claim 13, wherein the polylactic acid is selected from the group consisting of poly-L-lactic acid and poly-D-lactic acid. 24. The method of claim 14, wherein the flame retardant comprises at least one component selected from the group consisting of: tetrabromobisphenol-A epoxy 30 201109386 oligomer, tetrabromobisphenol-A carbonate Oligomers, brominated epoxy resins, phosphate esters, polyphosphates, organic phosphate salts, nitrogen heterocycles, ketone resins, chopped oils, chlorinated, zinc sulphate, and porous graphite. 25. The method according to claim 14, wherein the fluorine-based resin is a mixed powder of polytetrafluoroethylene, and the mixed powder of polytetrafluoroethylene has a weight average molecular weight of 100,000 to 1,000,000. 26. A mechanical product or part, an electronic device and/or a part, a building material and/or a commodity, comprising a blend according to claim 1 of the scope of the patent application. 27. Mechanical equipment accessories, bearings, gears, valves, stretches, pedestals, pallets, and/or engine components, electronic equipment enclosures, caps, parts, switches, extensions, pedestals, and / or pallets, film sheets, daylight mirror panels, durable siding, light boxes, window frames, curtain walls, food containers, liquid containers, toys, office equipment, sporting goods, and/or magnetic sheets, which are included in the scope of patent application Blend of item 1. 28. A method for preparing a mechanical product or part, an electronic device or part, a building material and/or a commodity, comprising using a blend according to claim 1 of the scope of the patent application. 31 201109386 IV. Designated representative map: (1) The representative representative of the case is: None. (2) A brief description of the symbol of the representative figure: 5. If there is a Li-style in this case, please disclose the chemical formula that best shows the characteristics of the invention: 〇川,