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CN-122011716-A - Waterproof aging-resistant carrier tape material and preparation method thereof

CN122011716ACN 122011716 ACN122011716 ACN 122011716ACN-122011716-A

Abstract

The invention discloses a waterproof ageing-resistant carrier tape material and a preparation method thereof, and relates to the technical field of polycarbonate. The waterproof aging-resistant carrier tape material is prepared by blending polycarbonate, acrylonitrile-butadiene-styrene resin, methyl methacrylate-butadiene-styrene resin, modified titanium dioxide and an auxiliary agent, and then carrying out melt extrusion granulation, wherein the polycarbonate comprises silicon-containing isosorbide type polycarbonate, and is prepared by adding a silicon-based modifier into a melt transesterification-polycondensation system for copolymerization. According to the invention, the polycarbonate prepared by introducing the silicon-based modifier into the isosorbide type polycarbonate melt transesterification-polycondensation system is used as a matrix, and the waterproof and ageing resistance of the carrier band material are obviously improved by adding the modified titanium dioxide, and meanwhile, the polycarbonate has excellent mechanical properties and antistatic properties.

Inventors

  • JU MEIWEN
  • JIANG JIA
  • LU LINGLING
  • HUANG BIN

Assignees

  • 江西若邦科技股份有限公司

Dates

Publication Date
20260512
Application Date
20260202

Claims (10)

  1. 1. A preparation method of a waterproof aging-resistant carrier tape material is characterized by comprising the following steps: blending polycarbonate, acrylonitrile-butadiene-styrene resin, methyl methacrylate-butadiene-styrene resin, modified titanium dioxide and an auxiliary agent, and then carrying out melt extrusion granulation to obtain a waterproof ageing-resistant carrier tape material; The polycarbonate comprises silicon-containing isosorbide type polycarbonate, and is prepared by adding a silicon-based modifier into a melt transesterification-polycondensation system for copolymerization of diphenyl carbonate, isosorbide and 1, 4-cyclohexanedimethanol.
  2. 2. The preparation method of the waterproof and ageing-resistant carrier tape material according to claim 1, wherein the waterproof and ageing-resistant carrier tape material comprises, by mass, 100 parts of polycarbonate, 20-25 parts of acrylonitrile-butadiene-styrene resin, 3-5 parts of methyl methacrylate-butadiene-styrene resin, 10-18 parts of modified titanium dioxide and 2-2.5 parts of auxiliary agents.
  3. 3. The method for preparing the waterproof and ageing-resistant carrier tape material of claim 1, wherein the preparation method for the silicon-containing isosorbide type polycarbonate comprises the following steps of uniformly mixing diphenyl carbonate, isosorbide, 1, 4-cyclohexanedimethanol, a silicon-based modifier and sodium hydroxide in a nitrogen atmosphere, heating, stirring, reacting, and purifying to obtain the silicon-containing isosorbide type polycarbonate.
  4. 4. The method for preparing the waterproof and ageing-resistant carrier tape material according to claim 3, wherein the raw materials of the silicon-containing isosorbide type polycarbonate comprise diphenyl carbonate, isosorbide and 1, 4-cyclohexanedimethanol in a mass ratio of 14.5-15.5:9-9.5:1, and the sodium hydroxide accounts for 2-3 ppm of the total diol mass.
  5. 5. The method for preparing the waterproof and ageing-resistant carrier tape material according to claim 3, wherein the silicon-based modifier accounts for 5-10wt% of the total mass of the raw materials; Adding N-phenylmaleimide into absolute ethyl alcohol, uniformly stirring, heating to 80-85 ℃, dropwise adding 4,4' -diaminodiphenyl methane-ethanol solution, controlling the dropwise adding time to be 1-2 h, stirring for reacting for 12-18 h, washing the precipitate with ethanol, filtering, and drying to obtain diamine; (2) And heating the epoxy group double-end capped silicone oil to 190-200 ℃, adding diamine in batches, and stirring and reacting for 40-60 min to obtain the silicon-based modifier.
  6. 6. The method for preparing the waterproof and aging-resistant carrier tape material according to claim 5, wherein the raw materials of the diamine comprise N-phenylmaleimide and 4,4' -diaminodiphenyl methane in a mass ratio of 10:3.5-4; the raw materials of the silicon-based modifier comprise epoxy group double-end-capped silicone oil and diamine with the mass ratio of 4.5-5:1.
  7. 7. The method for preparing the waterproof aging-resistant carrier tape material according to claim 3, wherein the heating and stirring reaction process specifically comprises the steps of stirring and reacting at 160-170 ℃ for 30-40 min, heating to 180-190 ℃ and stirring and reacting for 40-60 min, further heating to 230-240 ℃ and reducing the pressure to 12-16 kPa, stirring and reacting for 30-40 min, reducing the pressure to 4-8 kPa, stirring and reacting for 10-15 min, heating to 240-250 ℃ and reducing the pressure to 1-2 kPa, stirring and reacting for 5-10 min, and finally vacuumizing to 60-80 Pa and preserving heat for 5-10 min.
  8. 8. The preparation method of the waterproof aging-resistant carrier tape material according to claim 1 is characterized by comprising the following steps of (1) uniformly mixing alkyl dimethyl tertiary amine and epoxy chloropropane in a nitrogen atmosphere, stirring and reacting for 1-1.5 h at 80-85 ℃, and distilling under reduced pressure to obtain alkyl quaternary ammonium salt; (2) Under the nitrogen atmosphere, adding epoxy modified titanium dioxide and diamine into N, N-dimethylformamide, uniformly dispersing by ultrasonic, stirring and reacting for 6-8 hours at 130-140 ℃, adding alkyl quaternary ammonium salt, continuously stirring and reacting for 10-12 hours, filtering, washing and drying to obtain the modified titanium dioxide.
  9. 9. The method for preparing the waterproof and aging-resistant carrier tape material according to claim 8, wherein the raw materials of the alkyl quaternary ammonium salt comprise alkyl dimethyl tertiary amine and epichlorohydrin with a molar ratio of 1:2.5-3; the epoxy modified titanium dioxide is obtained by treating nano titanium dioxide with 3- (2, 3-epoxypropoxy) propyl trimethoxy silane; The raw materials of the modified titanium dioxide comprise epoxy modified titanium dioxide, diamine and alkyl quaternary ammonium salt in a mass ratio of 10:2.1-2.3:1.2-1.4.
  10. 10. The waterproof and aging-resistant carrier tape material prepared by the preparation method of the waterproof and aging-resistant carrier tape material according to any one of claims 1-9.

Description

Waterproof aging-resistant carrier tape material and preparation method thereof Technical Field The invention relates to the technical field of polycarbonate, in particular to a waterproof ageing-resistant carrier tape material and a preparation method thereof. Background The carrier tape is a key consumable in the automatic packaging process of electronic components, and is mainly used for carrying and conveying small-sized devices such as chips, resistors, capacitors and the like, the components are accurately contained in the surface of the carrier tape through equidistant holes, sealing protection is realized under the cooperation of the cover tape, and the requirements of static resistance, water resistance, moisture resistance, high stability in size and the like are required to be met. Polycarbonate (PC) is one of the most commonly used high-performance engineering plastics of carrier band materials, belongs to a high-molecular material system for nonmetal additive manufacturing, and has a PC molecular main chain formed by rigid benzene rings and flexible carbonate groups alternately, and has higher glass transition temperature, excellent shock resistance and good transparency. Bisphenol A type polycarbonate (BPA-PC) is the most widely used in the prior art, the comprehensive performance is balanced, but the used raw materials belong to nonrenewable fossil resources and do not accord with the sustainable development trend of green, so isosorbide type Polycarbonate (PIC) is gradually paid attention to, the raw material isosorbide can be prepared based on glucose, the source is renewable, but the PIC has the problems of general heat stability, poor water resistance, easy aging and the like due to higher hydrophilicity, and the application of the PIC is limited. In summary, the preparation of the waterproof aging-resistant carrier tape material has important significance in solving the problems. Disclosure of Invention The invention aims to provide a waterproof ageing-resistant carrier tape material and a preparation method thereof, which are used for solving the problems in the background technology. In order to solve the technical problems, the invention provides the following technical scheme: A preparation method of a waterproof aging-resistant carrier tape material comprises the following steps: blending polycarbonate, acrylonitrile-butadiene-styrene resin, methyl methacrylate-butadiene-styrene resin, modified titanium dioxide and an auxiliary agent, and then carrying out melt extrusion granulation to obtain a waterproof ageing-resistant carrier tape material; The polycarbonate comprises silicon-containing isosorbide type polycarbonate, and is prepared by adding a silicon-based modifier into a melt transesterification-polycondensation system for copolymerization of diphenyl carbonate, isosorbide and 1, 4-cyclohexanedimethanol. More preferably, the waterproof aging-resistant carrier tape comprises, by mass, 100 parts of polycarbonate, 20-25 parts of acrylonitrile-butadiene-styrene resin, 3-5 parts of methyl methacrylate-butadiene-styrene resin, 10-18 parts of modified titanium dioxide and 2-2.5 parts of auxiliary agents. Preferably, the preparation method of the silicon-containing isosorbide type polycarbonate comprises the following steps of uniformly mixing diphenyl carbonate, isosorbide, 1, 4-cyclohexanedimethanol, a silicon-based modifier and sodium hydroxide in a nitrogen atmosphere, heating and stirring for reaction, and purifying to obtain the silicon-containing isosorbide type polycarbonate. More preferably, the raw materials of the silicon-containing isosorbide type polycarbonate comprise diphenyl carbonate, isosorbide and 1, 4-cyclohexanedimethanol in a mass ratio of 14.5-15.5:9-9.5:1, wherein the sodium hydroxide accounts for 2-3 ppm of the total diol mass. Preferably, the silicon-based modifier accounts for 5-10wt% of the total mass of the raw materials; Adding N-phenylmaleimide into absolute ethyl alcohol, uniformly stirring, heating to 80-85 ℃, dropwise adding 4,4' -diaminodiphenyl methane-ethanol solution, controlling the dropwise adding time to be 1-2 h, stirring for reacting for 12-18 h, washing the precipitate with ethanol, filtering, and drying to obtain diamine; (2) And heating the epoxy group double-end capped silicone oil to 190-200 ℃, adding diamine in batches, and stirring and reacting for 40-60 min to obtain the silicon-based modifier. Preferably, the raw materials of the diamine comprise N-phenylmaleimide and 4,4' -diaminodiphenyl methane in a mass ratio of 10:3.5-4; the raw materials of the silicon-based modifier comprise epoxy group double-end-capped silicone oil and diamine with the mass ratio of 4.5-5:1. The preparation method of the silicon-based modifier comprises the following steps of carrying out Michael addition reaction on N-phenylmaleimide and 4,4' -diaminodiphenyl methane to obtain diamine with a double-end addition phenyl-aminosuccinimide structure containing