Alloy for recovering polyethylene glycol terephthalate/acrylonitrile-butadiene-styrene copolymer and preparation method thereof

A polyethylene terephthalate and styrene copolymer technology, which is applied in the field of preparation of recycled PET/ABS alloy, can solve the problem of narrow controllable temperature range of alloy processing, low molecular weight of recycled PET, and difficulty in guaranteeing product quality and other problems, to achieve the effect of improving the overall performance, excellent processability, and preventing the decline of the mechanical properties of the system

Active Publication Date: 2013-10-23
HEFEI GENIUS NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are still the following disadvantages in this technology: the PET used is a new material, and its processing temperature is 260-290°C. At this temperature, ABS has begun to decompose, and the controllable temperature range of alloy processing is very narrow. Not only is the operation difficult, but the product Difficult to guarantee quality
This patent provides an effective way to recycle PET materials, but it has the following disadvantages: it cannot effectively solve the difficulty that the two phases of recycled PET and ABS are incompatible systems, and at the same time, recycled PET itself has low molecular weight, and it is easy to oxidize and fracture chain, leading to the crux of system performance becoming brittle and unstable

Method used

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  • Alloy for recovering polyethylene glycol terephthalate/acrylonitrile-butadiene-styrene copolymer and preparation method thereof
  • Alloy for recovering polyethylene glycol terephthalate/acrylonitrile-butadiene-styrene copolymer and preparation method thereof
  • Alloy for recovering polyethylene glycol terephthalate/acrylonitrile-butadiene-styrene copolymer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Take by weighing 60.0% of dried reclaimed PET flakes by weight ratio, ABS resin is 16.0%, ABS-g-MAH compatibilizer is 2.5%, reinforcing agent is 20%, diisocyanate is 0.5%, antioxidant 1010 is 0.2%, antioxidant 168 is 0.3%, lanthanum acetate is 0.4%, light stabilizer V703 is 0.1%. The above-mentioned components are mixed evenly by a high-speed mixer and then added from the discharge port of the extruder. The temperature of each section of the extruder from the discharge port to the grinding port is between 180-200 °C, and the speed of the main engine is 80r / min. . Alloy materials are granulated by melt blending and extruding. The SEM photo of gained recycled PET / ABS alloy is as follows figure 1 The material test results are shown in Table 1.

Embodiment 2

[0044] Weigh 60.0% of dried recycled PET flakes by weight, ABS resin is 11.0%, reinforcing agent is 25%, ABS-g-GMA compatibilizer is 2.0%, and epoxy molecular weight regulator ADR4370S is 0.7% %, antioxidant 1010 is 0.2%, antioxidant 168 is 0.3%, gallium acetate is 0.5%, antistatic agent 129 is 0.3%. The above-mentioned components are mixed evenly by a high-speed mixer and then added from the discharge port of the extruder. The temperature of each section of the extruder from the discharge port to the grinding port is between 180-200 °C, and the main engine speed is 90r / min. . The SEM photo of gained recycled PET / ABS alloy is as follows figure 2 The material test results are shown in Table 1.

Embodiment 3

[0046] Take by weighing 70.0% of the reclaimed PET flakes that dry well, the ABS resin is 12.0%, the reinforcing agent is 15%, the ABS-g-GMA compatibilizer is 1.0%, the epoxy molecular weight regulator is 1.0%, anti- Oxygen 1010 is 0.2%, antioxidant 168 is 0.3%, and lanthanum acetate is 0.5%. The above-mentioned components are mixed evenly by a high-speed mixer and then added from the discharge port of the extruder. The temperature of each section of the extruder from the discharge port to the grinding port is between 180-200 °C, and the speed of the main engine is 100r / min. . The material test results are shown in Table 1.

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Abstract

The invention relates to an alloy for recovering a polyethylene glycol terephthalate / acrylonitrile-butadiene-styrene copolymer and a preparation method thereof. The method comprises the following steps of: recovering 60-90% of PET (Polyethylene glycol Terephthalate), 2-30% of ABS (Acrylonitrile Butadiene Styrene) resin, 3-30% of an enhancer, 1-5% of a compatilizer, 0.1-0.5% of an antioxygen, 0.1-0.5% of rare-earth metal salt, 0.1-2% of a molecular weight modifier and 0-2% of other assistants in percentage by weight; uniformly mixing by a high speed mixer; adding into an extruder to obtain material strips, wherein the processing temperatures of the extruder from a feed inlet to a grinding mouth are sequentially 180 DEG C, 185 DEG C, 190 DEG C, 195 DEG C, 200 DEG C, 205 DEG C, 210 DEG C and 215 DEG C, and the rotating speed of a main machine of the extruder is 80-120r / min; and carrying out water cooling and dicing on the material strips to obtain the modified aggregates. Compared with the prior art, the alloy provided by the invention has the advantages of industrial production in batches, excellent tensile strength, high impact strength, mobility, chemical stability and the like.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to the preparation of a recycled PET / ABS alloy with high performance and low cost. Background technique [0002] Polyethylene terephthalate (PET) is a kind of crystalline polyester with good organic solvent resistance, chemical resistance, self-lubricating performance and molding processing performance, etc. It is widely used in long fiber, food packaging bottles , plates, plastic steel strips, etc. With the wide application of PET materials, waste PET materials are gradually increasing. Waste PET materials are non-biodegradable materials. If these waste PET materials cannot be recycled well, it will not only cause waste of resources, but also cause environmental pollution. [0003] ABS plastic is an acrylonitrile-butadiene-styrene copolymer, which has good comprehensive properties, high impact strength, chemical stability and good electrical properties. ABS ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L55/02C08L51/00C08L51/06C08K13/04C08K7/14C08K7/06C08K7/08C08K5/098C08K3/16C08K3/26C08K3/30B29C47/92B29C48/92
CPCB29B9/14B29B7/46B29B7/72B29B7/7461B29B7/90B29B9/06B29B9/12B29C48/875B29C48/92B29C2948/9259B29C2948/92704B29C2948/92885B29C2948/92895
Inventor 杨桂生汪海孙利明
Owner HEFEI GENIUS NEW MATERIALS
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