Cold resistant and high thermal resistance PPA (Phenyl-Propanolamine)/PETG (Polyethylene Terephthalate Glycol) alloy as well as preparation method and application of alloy

A high heat-resistant and cold-resistant technology, applied in the field of polymer materials, can solve problems such as poor fluidity and processing difficulties, and achieve the effects of high electrical properties, high surface gloss, and high rigidity

Active Publication Date: 2013-03-27
GUANGDONG WAYLAM ENG PLASTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to its high temperature resistance, its fluidity is poor, which makes processing mo...

Method used

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  • Cold resistant and high thermal resistance PPA (Phenyl-Propanolamine)/PETG (Polyethylene Terephthalate Glycol) alloy as well as preparation method and application of alloy

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Dry PPA and PETG at 110°C for 3 hours, then mix the dried PPA, PETG, toughener, antioxidant, and processing aids in proportion and send them into the twin-screw extruder. Add alkali-free glass fiber out of the machine, go through twin-screw high-speed continuous shearing, mixing, extruding from the machine head, drawing, drying, pelletizing, exposing to strong magnetism and packaging.

[0033] Screw temperature: first zone: 295°C, second zone 310°C, third zone 320°C, fourth zone 325°C, die head 330°C.

Embodiment 2

[0035] According to the process conditions in Example 1 and the material ratio in Table 1, a cold-resistant and high-heat-resistant PPA / PETG alloy was prepared.

[0036] Table 1 (material ratio is weight percentage)

[0037] components Material ratio 1 Material ratio 2 PPA resin 49 44 PETG resin 10 10 Toughener (grafted SEBS) 5 15 E-glass fiber (988A) 35 30 Antioxidant (1010 / 168) 0.5 0.5 Processing aids (silicone powder) 0.5 0.5

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Abstract

The invention relates to a gold resistant and high thermal resistance PPA (Phenyl-Propanolamine)/PETG (Polyethylene Terephthalate Glycol) alloy as well as preparation method and application of the alloy. The alloy comprises the following components in parts by weight: 29 to 54.6 parts of PPA, 10 to 20 parts of PETG, 5 to 15 parts of toughening agent, 30 to 35 parts of alkali-free glass fiber, 0.2 to 0.5 part of an antioxidant, and 0.2 to 0.5 part of a processing agent, wherein the toughening agent is prepared by compounding maleic anhydride grafted SEBS (Styrene-Butadiene-Styrene) with maleic anhydride grafted ethylene-butylene-copolymer; the antioxidant is a phenol or phosphonolipid antioxidant; and the processing agent is one of EBS (Ethylene Bis Stearamide) and silicone powder or a mixture obtained by compounding EBS and silicone powder. The preparation method comprises the following steps in sequence: uniformly mixing and stirring all the raw materials except the alkali-free glass fibers; feeding the alkali-free glass fibers while melting and extruding; cooling; drying in the air; cutting into granules; and processing by strong magnet, thus obtaining the finished product of the alloy. The alloy is higher in impact strength, electrical property, modulus, rigidity and surface gloss, and can be normally used at all temperatures.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a cold-resistant and high-heat-resistant PPA / PETG alloy and its preparation method and application. Background technique [0002] Polyphthalamide (PPA for short) is a semi-aromatic polyamide made of terephthalic acid or phthalic acid. It is a semi-crystalline thermoplastic aromatic polyamide, commonly known as aromatic high-temperature nylon. The new type of high-temperature resistant, high-performance special engineering plastics developed and mass-produced first by Weiwei Company. It has the advantages of high rigidity, high heat resistance, high strength and excellent electrical properties. The melting point of polyphthalamide is between 310-325°C, the heat distortion temperature can be between 260-280°C, it can withstand the continuous high temperature of 200°C, and it can also maintain good dimensional stability. PPA has superior environmental performance and c...

Claims

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Application Information

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IPC IPC(8): C08L77/06C08L67/02C08L51/00C08L51/06C08L53/02C08L83/04C08K13/04C08K7/14C08K5/20
Inventor 刘广闻皮正亮阳瑞徐建辉葛嘉宝郭建强
Owner GUANGDONG WAYLAM ENG PLASTICS
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