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Modified PP and preparation method thereof

A modified and thermoplastic polyester technology, applied in the field of modified PP and its preparation, and the field of twin-screw extruders for the preparation of modified PP, can solve the problems of poor stiffness and impact performance, large shrinkage, easy cracking, etc. The effect of improving stiffness and impact toughness, reducing molding shrinkage, and saving usage

Active Publication Date: 2019-08-09
潮州市潮安区佳特塑料实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it has problems such as large shrinkage rate, easy cracking at low temperature, poor stiffness and impact performance, etc., which limit its application in some occasions. Therefore, we propose a modified PP and its preparation method, as well as the method for preparing modified PP twin screw extruder

Method used

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  • Modified PP and preparation method thereof
  • Modified PP and preparation method thereof
  • Modified PP and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Such as figure 1 As shown, a modified PP is prepared from the following raw materials in parts by weight: 28 parts of PP resin, 30 parts of EPDM, 15 parts of talcum powder, 16 parts of polycarbonate, polyamide 14 parts, 12 parts of modified polyphenylene ether, 16 parts of thermoplastic polyester, 1 part of stabilizer, 4 parts of compatibilizer and 3 parts of antioxidant, and the stabilizer includes one of sodium silicate, urea and potassium chlorate or Various, the compatibilizer is PP-G-MAH, and the antioxidant is sec-butyl-p-phenylenediamine antioxidant.

[0028] A preparation method of modified PP, the specific steps are as follows:

[0029] (1) Ingredients weighing: Weigh the following raw materials according to parts by weight: PP resin, EPDM, talcum powder, polycarbonate, polyamide, modified polyphenylene ether, thermoplastic polyester, stabilizer agents, compatibilizers and antioxidants;

[0030] (2) Blending and melting: Add the raw materials weighed in step...

Embodiment 2

[0033] Such as figure 1As shown, a modified PP is prepared from the following raw materials in parts by weight: 29 parts of PP resin, 31 parts of EPDM, 20 parts of talcum powder, 17 parts of polycarbonate, polyamide 15 parts, 13 parts of modified polyphenylene ether, 17 parts of thermoplastic polyester, 2 parts of stabilizer, 5 parts of compatibilizer and 4 parts of antioxidant, the stabilizer includes one of sodium silicate, urea and potassium chlorate or multiple, the compatibilizer is PP-G-MAH, and the antioxidant is sec-butyl-p-phenylenediamine antioxidant.

[0034] A preparation method of modified PP, the specific steps are as follows:

[0035] (1) Ingredients weighing: Weigh the following raw materials according to parts by weight: PP resin, EPDM, talcum powder, polycarbonate, polyamide, modified polyphenylene ether, thermoplastic polyester, stabilizer agents, compatibilizers and antioxidants;

[0036] (2) Blending and melting: Add the raw materials weighed in step (1...

Embodiment 3

[0039] Such as figure 1 As shown, a modified PP is prepared from the following raw materials in parts by weight: 30 parts of PP resin, 32 parts of EPDM, 30 parts of talcum powder, 18 parts of polycarbonate, polyamide 16 parts, 14 parts of modified polyphenylene ether, 18 parts of thermoplastic polyester, 3 parts of stabilizer, 6 parts of compatibilizer and 5 parts of antioxidant, and the stabilizer includes one of sodium silicate, urea and potassium chlorate or multiple, the compatibilizer is PP-G-MAH, and the antioxidant is sec-butyl-p-phenylenediamine antioxidant.

[0040] A preparation method of modified PP, the specific steps are as follows:

[0041] (1) Ingredients weighing: Weigh the following raw materials according to parts by weight: PP resin, EPDM, talcum powder, polycarbonate, polyamide, modified polyphenylene ether, thermoplastic polyester, stabilizer agents, compatibilizers and antioxidants;

[0042] (2) Blending and melting: Add the raw materials weighed in st...

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Abstract

The invention discloses modified PP, a preparation method thereof and a twin-screw extruder used for preparing the modified PP. The modified PP is prepared from, by weight, 22-36 parts of PP resin, 25-37 parts of EPDM, 10-45 parts of talcum powder, 12-23 parts of polycarbonate, 11-19 parts of polyamide, 9-16 parts of modified polyphenylene ether, 13-22 parts of thermoplastic polyester, 1-7 parts of a stabilizer, 2-9 parts of a compatibilizer and 2-7 parts of an antioxidant. The modified PP and the preparation method thereof have the advantages that by adopting the PP resin, the EPDM, T15 and the polycarbonate, the advantages of high impact, weather resistance, high mobility and sprayability can be improved; by adopting the PP resin, the EPDM, T20 and the polyamide, the advantages of high rigidity, weather resistance, scratch resistance and low odor can be improved; by adopting the PP resin, the EPDM, T30 and the modified polyphenylene ether, the advantages of rigidity and toughness balance and low shrinkage can be improved; by adopting the PP resin, the EPDM, T40 and the thermoplastic polyester, the advantages of high melt value, low odor and rigidity and toughness balance can be improved; the rigidity of a system is improved, and the molding shrinkage rate is reduced, thereby obtaining the reinforced PP material with excellent comprehensive performance.

Description

technical field [0001] The invention relates to the technical field of modified PP, in particular to a modified PP, a preparation method thereof, and a twin-screw extruder used for preparing the modified PP. Background technique [0002] With the advancement and development of science and technology, polymers have been widely used in many fields such as production, life and scientific research, and have developed into a new key scientific research category. With the continuous advancement of technology, the requirements for the performance of resin materials are increasing. The more stringent and broad it is, it is usually difficult for a single resin to meet these various requirements. In order to obtain resin materials with excellent performance, in addition to continuously developing new materials, multi-phase materials formed by combining two or more materials That is to say, composite materials emerge as the times require. By learning from the strengths and weaknesses o...

Claims

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Application Information

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IPC IPC(8): C08L23/16C08L23/12C08L69/00C08L77/00C08L71/12C08L67/00C08K3/34B29C48/40B29C48/92B29C48/80B29C48/505
CPCB29C48/40B29C48/505B29C48/832B29C48/92C08L23/16C08L2201/08C08L2205/035C08L23/12C08L69/00C08L77/00C08L71/126C08L67/00C08K3/34
Inventor 俞正标
Owner 潮州市潮安区佳特塑料实业有限公司
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