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A kind of waste pet heat-resistant viscosifying reinforced composite material and its preparation process

A technology for reinforcing composite material and preparation process, which is applied in the field of waste PET heat-resistant and tackifying reinforced composite material and its preparation process, can solve the problems of poor product quality, inability to mix waste PET and additives evenly, etc., and achieves viscosity enhancement and delay. Oxidation or auto-oxidation process, the effect of increasing toughness and strength

Inactive Publication Date: 2016-02-17
江苏中再再生资源有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the existing waste PET modification preparation process described in the background technology cannot mix waste PET and additives uniformly, resulting in poor product quality, and to provide a waste PET resistant to the aforementioned problems. Thermo-adhesive reinforced composite material and its preparation process

Method used

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  • A kind of waste pet heat-resistant viscosifying reinforced composite material and its preparation process
  • A kind of waste pet heat-resistant viscosifying reinforced composite material and its preparation process
  • A kind of waste pet heat-resistant viscosifying reinforced composite material and its preparation process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A kind of preparation technology of waste and old PET heat-resistant thickening reinforced composite material, it comprises the following steps:

[0026] Step 1. Prepare the following ingredients:

[0027]

[0028] Step 2, drying the crushed and cleaned waste PET main material at 120°C for 5 hours;

[0029] Step 3, putting the waste PET and the toughening agent dried in step 2 into a mixer and stirring at high speed to obtain the first blend;

[0030] Step 4, putting the dispersant, chain extender, nucleating agent and antioxidant into a high-speed mixer and blending for 3-6 minutes to obtain the second blend;

[0031] Step 5. Add the first blend to the main feed port, add the second blend to the powder side feed port attached to the main feed port, and then move the enhancer to the side feed on the side of the twin-screw extruder In the feed port, set the temperature of each zone of the extruder at 220-280°C for extrusion molding.

[0032] In step 5 of the above ...

Embodiment 2

[0038] A kind of waste and old PET heat-resistant viscosity-increasing reinforced composite material that adopts the preparation technology of embodiment 1 to make, its component and parts by weight ratio are as follows:

[0039]

Embodiment 3

[0041] A kind of waste and old PET heat-resistant viscosity-increasing reinforced composite material that adopts the preparation technology of embodiment 1 to make, its component and parts by weight ratio are as follows:

[0042]

[0043] The following list is the test data of this embodiment compared with the performance of the waste PET modified material prepared by the prior art, and the test data can intuitively reflect the performance of the waste PET heat-resistant viscosity-increasing reinforced composite material of the present invention:

[0044]

[0045] As can be seen from the above table, the waste and old PET heat-resistant viscosifying reinforced composite material prepared by the waste PET heat-resistant viscosifying reinforced composite material preparation process of the present invention has low melt flow index, high viscosity, high tensile strength and impact resistance. Strong capacity, high bending strength, high HDT (heat distortion temperature), all...

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Abstract

The invention discloses a waste PET (Polyester) heat-proof tackifying and reinforcing composite material and a preparation process thereof. The preparation raw materials of the waste PET heat-proof tackifying and reinforcing composite material include a waste PET material, a nucleating agent, a compound chain extender, a toughening agent, a reinforcing agent, a dispersant and an antioxidant. When the waste PET heat-proof tackifying and reinforcing composite material is prepared, a first mixture formed by mixing the waste PET material and the toughening agent is added from a main feed port, the nucleating agent, the compound chain extender, the dispersant and the antioxidant are added from a powder side beside the main feed port in a feeding way, and the reinforcing agent is added from the feed port positioned at an extruder side, so that a small amount of powdery auxiliary agent and a main material can be uniformly mixed and the quality of a finished material is enhanced in such a unique charging way. The preparation process of the waste PET heat-proof tackifying and reinforcing composite material, which is disclosed by the invention, has the advantages of simple process and easiness for industrialization; and the waste PET heat-proof tackifying and reinforcing composite material disclosed by the invention has the advantages of high crystallization rate, high heat-proof temperature and excellent mechanical property.

Description

technical field [0001] The invention relates to the field of recycling and utilization of chemical raw materials, in particular to a waste PET heat-resistant viscosity-increasing reinforced composite material and a preparation process thereof. Background technique [0002] Polyethylene terephthalate is polycondensed from terephthalic acid and oxalic acid, commonly known as polyester or PET. In recent years, PET has been widely used to make packaging bottles, and disposable PET packaging bottles have been The environmental pollution caused by discarding is becoming more and more serious, which has attracted worldwide attention. Recycling waste PET bottles can not only reduce environmental pollution, but also save resources. However, waste PET bottles are easily degraded by heat during the recycling process, and their molecular chains are broken, resulting in a significant decrease in molecular weight, resulting in low intrinsic viscosity and poor flow stability. , difficult ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L67/02C08K13/06C08K9/06C08K7/14C08K5/20C08K3/34C08K3/36B29C47/92B29C48/92
CPCB29C48/92B29C48/875B29C2948/9259B29C2948/92704B29C2948/92885B29C2948/92895
Inventor 何伟马革新陈炜高飞
Owner 江苏中再再生资源有限公司
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