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Polycarbonate nylon polymer alloy of solvent-resistant dimethylbenzene and preparation thereof

A polycarbonate and xylene technology, which is applied in the field of polycarbonate nylon alloy and its preparation, can solve the problems of poor solvent resistance to xylene and no improvement in solvent resistance, and achieves improved solvent cracking resistance, excellent resistance to The performance of the solvent, the effect of good mechanical properties

Inactive Publication Date: 2008-10-08
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, the compound system of halogen and inorganic compound and the smoke suppression system of silicone, molybdenum compound and zinc compound are introduced, so that the alloy has good smoke suppression and flame retardancy; however, the addition of flame retardant has a negative effect on the solvent resistance of the blended alloy No improvement; moreover, since polybutadiene is readily soluble in xylene, the addition of polybutadiene degrades the solvent resistance of the blended alloy to xylene

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] After the raw material is fully dried, by weight, take by weight 817 grams of bisphenol A polycarbonate, 150 grams of nylon 1010 (nylon 1010 is a commonly used name in the industry, and polysebacamide is its scientific name) , 30 grams of compatibilizer ethylene-octene copolymer grafted glycidyl methacrylate (fully dried), 3 grams of four [β-(3,5-di-tert-butyl-4-hydroxyphenyl) propane acid] pentaerythritol ester and tris (2,4-di-tert-butylphenyl) phosphite in a molar ratio of 1:2 antioxidant, the above components are mixed evenly, and then the resulting mixture in the extruder Extrusion, traction, granulation, and injection molding were carried out at 260°C to make samples. Then perform the performance test: the solvent resistance of the sample is tested according to ASTM D543 "Test Method for Chemical Resist Ability of Plastics"; the tensile strength and elongation at break are tested according to ASTM D638 "Plastic Tensile Test Method"; according to ASTM D256 " Plast...

Embodiment 2

[0021] After fully drying the raw materials, weigh 781 grams of bisphenol A polycarbonate, 175 grams of nylon 1010, 40 grams of compatibilizer ethylene-octene copolymer grafted glycidyl methacrylate, 4 grams are composed of tetrakis [β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester and tris (2,4-di-tert-butylphenyl) phosphite in a molar ratio of 1: 2 Composition of antioxidant, mix the above components evenly, then extrude, draw, pelletize the resulting mixture in an extruder at 255°C, and inject into samples for performance testing. The solvent resistance of the sample is tested according to ASTM D543 "Test Method for Plastic Chemical Resistance Ability"; according to ASTM D638 "Plastic Tensile Test Method" method to test tensile strength and elongation at break; according to ASTM D256 "Plastic Izod Impact Test Method" method test to test the impact strength. The rate of change (decline rate) of tensile strength, elongation at break and impact strength...

Embodiment 3

[0023] After fully drying the raw materials, weigh 745 grams of bisphenol A polycarbonate, 200 grams of nylon 1010, 50 grams of compatibilizer ethylene-octene copolymer grafted glycidyl methacrylate, 5 grams are made up of tetrakis [β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester and tris (2,4-di-tert-butylphenyl) phosphite in a molar ratio of 1: 2. Composition of antioxidant, mix the above components evenly, then extrude, draw, pelletize the resulting mixture in an extruder at 275°C, and inject into samples to perform performance tests. The solvent resistance of the sample is tested according to ASTM D543 "Test Method for Plastic Chemical Resistance Ability"; according to ASTM D638 "Plastic Tensile Test Method" method to test tensile strength and elongation at break; according to ASTM D256 "Plastic Izod Impact Test Method" method test to test the impact strength. The rate of change (decline rate) of tensile strength, elongation at break and impact str...

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Abstract

The invention discloses a polycarbonate nylon polymer alloy of solvent-resistant xylene and the preparation method. Based on weight proportion, the polycarbonate nylon polymer alloy is composed of 74.5 to 81.7 portions of polycarbonate, 15 to 20 portions of polydecamrthylene sebacamide, 3 to 5 portions of compatibilizer and 0.3 to 0.5 portion of antioxidant. The preparation method is that the components are dried and mixed evenly, and then extruded, towed and granulated at 255 to 275 DEG C to prepare the polycarbonate nylon polymer alloy of solvent-resistant xylene. As polydecamrthylene sebacamide forms network micro-fiber structures in the polycarbonate resin matrix, so the polycarbonate is endowed with excellent solvent-resistant performance so as to improve the solvent-resistant cracking property of the polycarbonate and enable the alloy to have good processing flowability, as well as ensure good mechanical properties at the same time, therefore, the alloy can be used as plastic parts for xylene-resistant solvents.

Description

technical field [0001] The invention relates to a polycarbonate material, in particular to a solvent-resistant polycarbonate nylon alloy and a preparation method thereof, and the solvent-resistant polycarbonate material can be used as a solvent-resistant xylene-resistant plastic part. Background technique [0002] Polymer alloys are multi-component systems composed of two or more polymer materials. Polymer alloys can achieve properties that cannot be obtained with a single polymer. Polymer alloying technology can provide diversified, multi-functional and new materials that meet market requirements through the combination of various polymers, and has low development costs, low investment, short cycle time, and fast launch of new products. Polymer alloying has become an important means of developing new polymer materials. [0003] Engineering plastics have many excellent properties, but there are also many shortcomings. Designing alloys of different polymers can simultaneous...

Claims

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Application Information

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IPC IPC(8): C08L69/00C08L77/06C08K5/134C08K5/526B29B9/12B29C47/92B29C48/92
CPCB29C47/92B29C48/04B29C48/92B29C2948/92704B29C2948/92895
Inventor 吴水珠卢家荣赵建青曾钫
Owner SOUTH CHINA UNIV OF TECH
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