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Polymer alloy, process for producing same and molded article

A manufacturing method and polymer technology, applied in chemical instruments and methods, mixers, transportation and packaging, etc., can solve the problems of insufficient heat resistance improvement effect, and achieve the effect of improving heat resistance

Active Publication Date: 2012-05-23
TORAY IND INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the method of Patent Document 3, the obtained structure is dispersed in a spherical shape, and the effect of improving heat resistance is insufficient.

Method used

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  • Polymer alloy, process for producing same and molded article
  • Polymer alloy, process for producing same and molded article
  • Polymer alloy, process for producing same and molded article

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0080] Examples are given below to illustrate the present invention. In Examples and Comparative Examples, measurement was performed by the following method.

[0081] Transmission electron microscope photo

[0082] A sample obtained by cutting an ultrathin section with an ultramicrotome was magnified to 120,000 times with a Hitachi H-7100 transmission electron microscope to observe the phase structure.

[0083] Correlation length determined by small angle X-ray scattering spectrometry

[0084] Instead of using a cover glass, clamp it in Kapton's film, make the sample into a sheet with a thickness of 0.1mm under heat and pressure, remove the obtained film-like sample from the Kapton film, and measure the film-like sample directly . Small-angle X-ray scattering uses RA-micro7 manufactured by Rigaku Corporation, and converts the two-dimensional data obtained by exposing the imaging plate for 30 minutes to a one-dimensional scattering pattern by circular average (circular avera...

Embodiment 8～20

[0091] Heat resistance (DTUL) test (Examples 8-20, Comparative Examples 4-16)

[0092] According to ASTM D648, the measurement of the deflection temperature under load was performed using Yasuda Seiki 148-HDD-6S at a heating rate of 120° C. / hr and a load of 1.82 MPa.

[0093] Tensile Strength, Tensile Elongation (Examples 1-7, Comparative Examples 1-3)

[0094] After kneading with a Banbury mixer, the sample obtained by quenching in ice water to fix the structure was heat-pressed at 1.5 MPa for 10 seconds to produce a sheet (thickness: 0.8 mm). A sample of length×width×thickness=50 mm×10 mm×0.8 mm was cut out from the sheet, and measured using UTA-2.5T manufactured by Orientec Co., Ltd., with a distance between chucks of 20 mm and a tensile speed of 10 mm / min.

[0095] Tensile strength, tensile elongation (Examples 8-20, Comparative Examples 4-16)

[0096] According to ASTM D638, the No. 1 dumbbell sample was measured using UTA-2.5T manufactured by Orientec Co., Ltd., with a...

Embodiment 1～7

[0097] Total Light Transmittance (1) (Examples 1-7, Comparative Examples 1-3)

[0098] After kneading with a Banbury mixer, the sample obtained by quenching in ice water to fix the structure was heat-pressed at 1.5 MPa for 10 seconds to produce a sheet (thickness: 0.8 mm). A sample of length×width×thickness=50 mm×10 mm×0.8 mm was cut out from the sheet, and the total light transmittance at a wavelength of 240 to 2600 nm was measured using a spectrophotometer MPC3100 manufactured by Shimadzu Corporation.

[0099] Light transmittance (2) (Examples 8-20, Comparative Examples 4-16)

[0100] The light transmittance of wavelength 400nm was measured using Shimadzu Corporation spectrophotometer MPC3100 using the square board (film gate) of thickness 1mm of 80mm square.

[0101] In Tables 1 to 6, the resins shown below were used.

[0102] PC (1): Polycarbonate resin (manufactured by Mitsubishi Engineering Plastic Co., Ltd., "Upiron" H4000, glass transition temperature 155°C)

[0103...

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Abstract

At least two or more components of thermoplastic resins are compounded by chaotic mixing to form a polymer alloy with a sophisticatedly controlled dispersed phase structure. In the polymer alloy, a dispersed phase having a non-periodic structure with a correlation length of 0.001 [mu]m to 0.5[mu]m and having a compactness (C) of 0.05 (C) 0.8, wherein the compactness (C) can form a molded product that also has transparency while maintaining the original good heat resistance or mechanical properties of the resins blended. A polymer alloy obtained by compounding at least two or more components of immiscible thermoplastic resins, containing a dispersion structure having particles with an average particle size of 0.001 to 1 [mu]m dispersed therein and satisfying 0 < (a) / (b) 1.5, wherein (a) and (b) represent a peak half width and the maximum wavenumber of the peak, respectively, in a spectrum obtained by plotting scattering intensity against wavenumber of scattered light in scattering measurement can form a molded product that also has transparency while maintaining the original good heat resistance and mechanical properties of the resins blended.

Description

technical field [0001] The present invention relates to polymer alloys and methods for their manufacture. In particular, the present invention relates to a polymer alloy which has excellent heat resistance and mechanical properties and can be usefully used as a structural material, and also has excellent transparency and can be usefully used as a transparent material, and a method for producing the same. Background technique [0002] Polymer alloys consisting of resins of two components include incompatible systems, compatible systems, and partially compatible systems. The compatibility system is that the two-component resins are compatible in the entire practical range from the glass transition temperature to the thermal decomposition temperature. The immiscible system means that the resins of the two components are incompatible in all regions. In the partially compatible system, the resins of the two components are compatible in some regions, and are in a phase-separated...

Claims

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Application Information

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IPC IPC(8): C08J3/20B29B7/48B29C48/395B29C48/40B29C48/47B29C48/57B29C48/625
CPCF02B77/00B29C47/6056B29B7/48C08J3/20C08J2300/00B29C47/6087B29C47/385B29C48/57B29C48/397B29C48/625B29C48/47B29C48/40C08K3/013B29B7/08B29B7/90B82Y30/00C08J3/005H01B1/22C08J2327/18C08J2369/00B01F31/87
Inventor 小林定之落合伸一郎
Owner TORAY IND INC
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