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PHA (Polyhydroxyalkanoate) and PETG (Glycol-Polyethylene Terephathalate) blend rigid sheet and preparation method thereof

A technology of blends and sheets, applied in the field of thermoplastic polyester, to achieve excellent industrial application value, good mechanical properties, and improved air tightness

Active Publication Date: 2013-03-27
江苏华信高新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] But so far, as a widely used method for the development of new polymer materials, the method of polymer blending has not been applied to the development of these two degradable resin-based new materials, PHA and PETG blends There have been no reports in any form so far, and the hard sheet and calendering method prepared by PHA and PETG blends have not been reported.

Method used

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  • PHA (Polyhydroxyalkanoate) and PETG (Glycol-Polyethylene Terephathalate) blend rigid sheet and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Embodiment 1: PHA and PETG blend rigid sheet formulation 1 and its calendering molding process

[0028] Material formula: PHA resin 80wt%, PETG resin 10wt%, PETG resin processing aid ADD20.3wt%, plasticizer tributyl citrate 3wt%, acetyl tributyl citrate 1wt%, lubricant glyceryl stearate 0.7wt%, ethylene glycol monostearate 0.3%, antioxidant triisooctyl phosphite 0.5wt%, compatibilizer 4wt%, ultraviolet absorber 2-hydroxy-4-n-octyloxydiphenylmethyl Ketone 0wt%, antistatic agent ethoxylated oleylamine 0.2wt%.

[0029] Calendering process:

[0030] A. Raw material preparation: Take 10Kg of raw materials according to the formula, dry the PHA and PETG resins until the moisture content is below 0.5% (wt, the same below), and then crush them to 40-200 meshes with grinding equipment such as a disc grinder;

[0031] B. Material mixing: use a high-speed mixer to carry out a two-stage mixing process on the material. High-speed mixing section: material temperature 70°C, spindle ...

Embodiment 2

[0038] Example 2: PHA and PETG blend hard sheet formulation 2 and its calendering molding process

[0039] Material formula: PHA resin 70wt%, PETG resin 20wt%, PETG resin processing aid ADD20.6wt%, plasticizer tributyl citrate 3wt%, acetyl tributyl citrate 0.5wt%, lubricant glycerin stearate 0.5wt% ester, 0.2wt% ethylene glycol monostearate, 0.4wt% antioxidant triisooctyl phosphite, 4.3wt% compatibilizer, 2-hydroxyl-4-n-octyloxyl UV absorber Benzophenone 0wt%, antistatic agent ethoxylated oleylamine 0.5wt%.

[0040] Calendering process:

[0041] A. Raw material preparation: Weigh 10Kg of raw materials according to the formula, dry the PHA and PETG resins until the moisture content is below 0.5%, and then crush them to 40-200 meshes with grinding equipment such as a disc grinder;

[0042] B. Material mixing: use a high-speed mixer to carry out a two-stage mixing process on the material. High-speed mixing section: material temperature 70°C, spindle speed 1500rpm, mixing time ...

Embodiment 3

[0049] Embodiment 3: PHA and PETG blend rigid sheet formulation 3 and its calendering molding process

[0050] Material formula: PHA resin 60wt%, PETG resin 30wt%, PETG resin processing aid ADD20.9wt%, plasticizer tributyl citrate 2.5wt%, acetyl tributyl citrate 0.5wt%, lubricant stearic acid Glyceride 0.4wt%, Ethylene Glycol Monostearate 0.2wt%, Antioxidant Triisooctyl Phosphite 0.35wt%, Compatibilizer 4.65wt%, UV Absorber 2-Hydroxy-4-n-octyloxy Base benzophenone 0.25wt%, antistatic agent ethoxylated oleylamine 0.25wt%.

[0051] Calendering process:

[0052] A. Raw material preparation: Weigh 10Kg of raw materials according to the formula, dry the PHA and PETG resins until the moisture content is below 0.5%, and then crush them to 40-200 meshes with grinding equipment such as a disc grinder;

[0053] B. Material mixing: use a high-speed mixer to carry out a two-stage mixing process on the material. High-speed mixing section: material temperature 70°C, spindle speed 1500rpm...

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Abstract

The invention belongs to the technical field of thermoplastic polyesters and discloses a PHA (Polyhydroxyalkanoate) and PETG (Glycol-Polyethylene Terephathalate) blend rigid sheet and a preparation method thereof. The sheet is mainly processed by the following components in percentage by weight: 20-80% of PHA resin, 10-70% of PETG resin, 0.3-2.5% of PETG resin processing agent, 0.5-4% of plasticizer, 0.1-1% of lubricant, 0.1-0.5% of antioxidant, 4-5.8% of compatibilizer, 0-0.5% of ultraviolet absorbent and 0-0.5% of antistatic agent. The blend of the PHA resin capable of being biosynthesized and completely degraded and the PETG resin capable of being degraded is taken as the main material, thus the invention has the advantages of low carbon and environment protection, and the application areas of the PHA resin and the PETG resin are remarkably expanded. The PHA and PETG blend rigid sheet disclosed by the invention has the advantages of excellent mechanical property and heat resistance, high product yield, easily obtained raw materials and excellent industrial application value; in addition, the process is simple and easy to operate and the industrial production is easy to realize.

Description

technical field [0001] The invention belongs to the technical field of thermoplastic polyester, and in particular relates to a PHA and PETG blend hard sheet and a preparation method thereof. Background technique [0002] Polyhydroxyalkanoate (PHA) is a kind of thermoplastic aliphatic biopolyester synthesized by prokaryotic microorganisms as carbon source and energy storage under the condition of carbon and nitrogen nutrition imbalance. Since the mechanical properties of PHA are similar to some thermoplastic materials such as polyethylene and polypropylene, but can be completely degraded into the ecological cycle of nature, it is considered to be a possible substitute for traditional non-degradable plastics synthesized from petroleum routes. Biodegradable plastic. [0003] As a degradable plastic variety that may replace the traditional petroleum route, there have been a large number of literature and patent reports on the biosynthesis, biomodification, and chemical modifica...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L67/04C08L67/02C08K5/00C08K5/11C08K5/103C08K5/524B29C69/02
Inventor 李振斌杨伟王光战高光辉
Owner 江苏华信高新材料有限公司