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Waste PET (Polyester) heat-proof tackifying and reinforcing composite material and preparation process thereof

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 inability to mix waste PET and auxiliary agents uniformly, poor product quality, etc., and achieves delaying oxidation or automatic Effects of oxidation process, viscosity enhancement, shortening cycle time

Inactive Publication Date: 2013-06-12
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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  • Waste PET (Polyester) heat-proof tackifying and reinforcing composite material and preparation process thereof
  • Waste PET (Polyester) heat-proof tackifying and reinforcing composite material and preparation process thereof
  • Waste PET (Polyester) heat-proof tackifying and reinforcing composite material and preparation process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A preparation process of waste PET heat-resistant and tackified reinforced composite material, which includes the following steps:

[0026] Step 1. Prepare the following raw materials:

[0027]

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

[0029] Step 3. Put the waste PET dried in step 2 and the toughening agent into a mixer and stir evenly at high speed to obtain a first blend;

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

[0031] Step 5. Add the first blend to the main feed port, and add the second blend to the powder side feed port installed on the main feed port, and then move the enhancer to the side feed 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 scheme, the temperature in the first zone of the ...

Embodiment 2

[0038] A waste PET heat-resistant and tackifying reinforced composite material prepared by using the preparation process of Example 1, and its components and weight percentages are as follows:

[0039] 60-70 parts of waste PET materials;

[0040] Nucleating agent 0.6-1.5 parts of talc, 0.6-1.5 parts of hydrophobic silica with a particle size of 15-40 nm nanometers, 0.3-1 parts of TMC-328 polyamide compound;

[0041] Compound chain extender 0.2-0.5 parts of pyromellitic dianhydride, 0.1-0.5 parts of phthalic anhydride, 0.2 parts of ADR-4370S;

[0042] Toughener 5-10 parts of maleic anhydride graft;

[0043] Reinforcing agent 20-30 parts of glass fiber surface treated with silane coupling agent;

[0044] Dispersant: 0.8-1. 5 parts of ethylene bis-stearic acid amide;

[0045] Antioxidant Temperature resistant antioxidant P262 0.3-0.8 parts.

Embodiment 3

[0047] A waste PET heat-resistant and tackifying reinforced composite material prepared by using the preparation process of Example 1, and its components and weight percentages are as follows:

[0048] 60 parts of waste PET materials;

[0049] Nucleating agent: 1 part of talc powder, 1 part of hydrophobic silica with a particle size of 30nm nanometers, 0.5 part of TMC-328;

[0050] Compound chain extender 0.3 parts of pyromellitic dianhydride, 0.2 parts of phthalic anhydride, 0.2 parts of ADR-4370S;

[0051] Toughening agent 8 parts of maleic anhydride graft;

[0052] Reinforcing agent 30 parts of glass fiber surface-treated with silane coupling agent;

[0053] Dispersant: 1 part of ethylene bisstearic acid amide;

[0054] Antioxidant 0.5 part of temperature resistant antioxidant P262.

[0055] The following list is the performance comparison between the detection data of this embodiment and the waste PET modified material prepared in the prior art. The detection data can intuitively refle...

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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 and viscosity-increasing reinforced composite material and a preparation process thereof. Background technique [0002] Polyethylene terephthalate is a polycondensation of terephthalic acid and oxalic acid. It is usually called polyester or PET. In recent years, PET has been widely used to make packaging bottles, while 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 coefficient and poor flow stabi...

Claims

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Application Information

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Patent Type & Authority Applications(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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