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Biaxially oriented polyarylene sulfide resin film and process for production of same

A polyarylene sulfide and biaxial stretching technology, which is applied in the biaxially stretched polyarylene sulfide resin film and its manufacturing field, can solve the problems of poor peelability and detachment of the inorganic filler film, and achieve flatness and smoothness. Harmonious slip properties, small coefficients of static and kinetic friction, and excellent releasability

Inactive Publication Date: 2012-11-28
KUREHA KAGAKU KOGYO KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] However, the biaxially stretched PAS resin film containing calcium carbonate, silicon dioxide and other inorganic fillers has the following problems: due to the secondary aggregation of the inorganic fillers to form coarse protrusions, it is easy to form pores around the inorganic fillers during stretching, and the inorganic fillers The filler is easily detached from the film, etc.
However, when the biaxially stretched PAS resin film obtained by this method is used as a release film, etc., if it is subjected to long-term high-temperature extrusion processing, it may shrink and curl, and as a result, the peelability is likely to deteriorate.

Method used

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  • Biaxially oriented polyarylene sulfide resin film and process for production of same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0135] The linear polyphenylene sulfide powder (melt viscosity 160Pa s) is supplied to the extruder, melted and extruded in the form of strips, and the strips are immersed in a cooling water tank to solidify, and then the strips are cut into pellets with a granulator ( Hereinafter referred to as "PPS particles").

[0136]On the other hand, the syndiotactic polystyrene ["XAREC (registered trademark) S104" manufactured by Idemitsu Kosan Co., Ltd.; MFR = 15 g / 10 minutes, Tm = 271 ° C measured under a temperature of 300 ° C and a load of 2.16 kgf ] particles (hereinafter referred to as "SPS particles (a)") were pre-dried by maintaining at 80°C for 3 hours.

[0137] The SPS particles (a) were added in a ratio of 0.5 parts by mass based on 100 parts by mass of the PPS particles, and mixed using a mixer to prepare a particle mixture. This granule mixture was put into an extruder with a diameter of 35 mm, melt-kneaded at 310° C., and formed into pieces from a T-die (die width = 300 m...

Embodiment 2

[0140] Except having changed the ratio of this SPS particle (a) into 2.0 mass parts from 0.5 mass part, it carried out similarly to Example 1, and produced the biaxially stretched film. The results are shown in Table 1. (Cut-off value when measuring surface roughness = 0.08mm)

Embodiment 3

[0142] Except that the particles of syndiotactic polystyrene were changed from the particles (a) of XAREC (registered trademark) S104 manufactured by Idemitsu Kosan Co., Ltd. to XAREC (registered trademark) 90ZC (rrrr stereo = 98%, temperature MFR = 9 g / 10 minutes, Tm = 272 ° C) particles measured at 300° C. and a load of 1.20 kgf (hereinafter referred to as “SPS particles (b)”), and the ratio thereof was changed from 0.5 parts by mass to 10.0 parts by mass A biaxially stretched film was produced in the same manner as in Example 1 except for 2 parts. The results are shown in Table 1. (Cut-off value when measuring surface roughness = 0.25mm)

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Abstract

The invention provides a biaxially oriented polyarylene sulfide resin film which is formed from a resin composition comprising 100 parts by mass of a polyarylene sulfide resin and 0.1 to 30 parts by mass of a syndiotactic polystyrene resin, wherein the center-line average roughness (Ra) is within the range of 0.01 to 0.09 [mu]m with the maximum height (Rmax) being at most 1.0 [mu]m, and the coefficient of static friction is at most 1.00, while the coefficient of kinetic friction is at most 0.70; and a process for the production of the same.

Description

technical field [0001] The present invention relates to a biaxially stretched polyarylene sulfide resin film in which the opposite characteristics of surface flatness and slippage are highly harmonious. More specifically, the present invention relates to a biaxially stretched polyarylene sulfide resin film having a small surface roughness, excellent surface flatness, a low coefficient of friction, and moderate slippage, and a method for producing the same. Background technique [0002] Polyarylene sulfide resin (hereinafter referred to as "PAS resin"), represented by polyphenylene sulfide resin (hereinafter referred to as "PPS resin"), is an engineering plastic that can be processed by extrusion molding and stretching. Formed into a biaxially stretched film. Biaxially stretched PAS resin film, excellent in heat resistance, chemical resistance, hydrolysis resistance, flame retardancy, mechanical strength, electrical properties, dimensional stability, etc. [0003] When usin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J5/18B29C55/14C08L25/06C08L81/02B29C48/05B29C48/08
CPCB29K2081/04C08L25/06B29K2025/06C08J5/18B29K2105/0088B29C55/143C08L81/02B29K2995/0073C08J2381/02B29K2025/00B29C48/05B29C48/08B29C48/914B29C48/919Y10T428/24355C08L2666/04B29C55/14
Inventor 宫崎葵日野雅之细田友则大场弘行臼井智
Owner KUREHA KAGAKU KOGYO KK
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