Polyphenylene sulfide polymer compositions and corresponding articles

A technology of polyphenylene sulfide and polymers, applied in the field of polyphenylene sulfide polymer compositions, capable of solving the problems of reduced strength of PPS polymer compositions, etc.

Active Publication Date: 2020-01-21
SOLVAY SPECIALTY POLYMERS USA LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, after prolonged contact with water, the strength of the PPS polymer composition decreases significantly, which requires replacement of the corresponding parts comprising the PPS polymer composition

Method used

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  • Polyphenylene sulfide polymer compositions and corresponding articles
  • Polyphenylene sulfide polymer compositions and corresponding articles
  • Polyphenylene sulfide polymer compositions and corresponding articles

Examples

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Embodiment Construction

[0029] These examples demonstrate the high temperature water aging performance of the PPS polymer compositions described herein.

[0030] To demonstrate water aging performance, several sample compositions were made. Each composition contained a PPS polymer having a melt flow rate of 70 g / 10 min. ("Low MFR PPS") or 1500 g / 10 min. ("High MFR PPS"). Some compositions incorporate glass fibers ("GF"), or are available from Johns Manville as E-glass fiber ("E-GF 1") available from 770; E-glass fiber ("E-GF 2") available from Nippon Electric Glass America as ECS 03T779DE or E-CR Fiberglass (3B DS 8800-11P from 3B-The Fiberglass Company).

[0031] Boron concentration in glass fibers was measured using ICP-AES. For ICP-AES analysis, place a clean dry plastic container on the analytical balance and zero the balance. Weigh half to three gram samples and record the weight to 0.0001 g. The sample is then dissolved in hydrofluoric acid. The solution was neutralized with boron hydrox...

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Abstract

Described herein are polyphenylene sulfide (PPS) polymer compositions including a low MFR PPS polymer and E-CR glass fibers. It was surprisingly discovered that the PPS polymer compositions had significantly improved retention of tensile strength and tensile elongation after water aging (water aging performance), relative to corresponding PPS polymer compositions having E glass fibers instead of the E-CR glass fibers. Moreover, it was also discovered that PPS polymer compositions including E-CR glass fibers in conjunction with a low MFR PPS polymer and a high MFR PPS polymer had unexpected synergies with respect to water aging performance, relative to corresponding polymer compositions including E-CR glass fibers and either a low MFR PPS polymer or a high MFR PPS. Due at least in part to the improved water aging performance, the PPS polymer compositions can be advantageously incorporated into application settings where the polymer composition is in contact with water. Examples include,but are not limited to, drinking water applications.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to U.S. Provisional Patent Application Nos. 62 / 516,929, filed June 8, 2017, and 62 / 592,956, filed November 30, 2017, the entire contents of each of these applications being adopted for all purposes by This application is incorporated by reference. technical field [0003] The present invention relates to polyphenylene sulfide polymer compositions having significantly improved water aging properties. The invention further relates to articles incorporating these polyphenylene sulfide polymer compositions. Background technique [0004] Reinforced polyphenylene sulfide ("PPS") polymer compositions are advantageously used in applications where the PPS polymer is in contact with water. Typically, PPS polymer compositions are reinforced with E-glass fibers to provide PPS polymer compositions with high strength (eg, tensile strength) in addition to the composition's inherently desirable chemi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L81/02C08K7/14C08K3/22
CPCC08G75/00C08K7/14C08L81/00C08L81/02C08G75/0209C08J5/043C08L2205/025
Inventor E.阿尼姆-丹森A.邦吉奧范尼P.马丁
Owner SOLVAY SPECIALTY POLYMERS USA LLC
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