PBAT/PHA/wood powder composition suitable for preparing thin film and preparation and application of PBAT/PHA/wood powder composition
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A technology of composition and wood powder, which is applied in the field of PBAT/PHA/wood powder composition, can solve the problems of reducing costs and reducing the amount of PBAT from petrochemical sources, and achieves the effects of reducing costs, ensuring biodegradability, and reducing production costs
Active Publication Date: 2021-03-26
中广核俊尔(浙江)新材料有限公司 +1
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However, the material does not indicate whether it can be used in the film field. Therefore, it is necessary to develop a blend of PHA and PBAT, and use wood flour as a film-grade fully biodegradable material to reduce the amount of PBAT from petrochemical sources and reduce costs.
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Embodiment 1
[0067] PBAT / PHA / wood flour composition, comprising the following raw materials:
[0068] 55 parts by weight of PBAT BX8145, 10 parts by weight of PHA F1005, 23 parts by weight of poplar wood powder;
[0069] Based on the total weight of PBAT, PHA and poplar wood powder, triethanolamine 8wt%, EMH3wt%, KC-37280.2wt%, triglyceryl distearate 0.8wt%, N,N'-bis(2,6- Diisopropylphenyl) carbodiimide 0.1 wt%.
Embodiment 2
[0071] PBAT / PHA / wood flour composition, comprising the following raw materials:
[0072] 45 parts by weight of PBAT C1200, 20 parts by weight of PHA EM40010, 25 parts by weight of poplar wood powder;
[0073] Based on the total weight of PBAT, PHA and poplar wood flour, diethanolamine 7.5wt%, PBS-g-GMA 2wt%, ADR-4468 0.2wt%, pentaerythritol stearate 0.3wt%, poly-di(1,3 , 5-triisopropylphenyl) carbodiimide 0.2wt%.
Embodiment 3
[0075] PBAT / PHA / wood flour composition, comprising the following raw materials:
[0076] 55 parts by weight of PBAT C1200, 12 parts by weight of PHA EM10080, 25 parts by weight of poplar wood powder;
[0077] Based on the total weight of PBAT, PHA and poplar wood powder, triglycerol 3.5wt%, EBA-GMA 4wt%, ADR-4400 0.3wt%, pentaerythritol stearate 0.2wt%, polymerized carbodiimide UN- 03 0.3 wt%.
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Abstract
The invention discloses a PBAT / PHA / wood powder composition suitable for preparing a thin film, preparation of the PBAT / PHA / wood powder composition and application of the PBAT / PHA / wood powder composition in preparation of the thin film. The composition comprises the following raw materials: basic components and additional components. The basic components comprise the following components in parts by weight: 30-80 parts of PBAT, 5-30 parts of PHA and 5-40 parts of wood flour. Based on the total weight of the basic components, the additional components comprise 1 wt%-20 wt% of a plasticizer, 1 wt%-10 wt% of a compatilizer, 0.1 wt%-1 wt% of a chain extender, 0.1 wt%-2 wt% of a lubricant and 0.1 wt%-1 wt% of an anti-hydrolysis agent. The preparation method comprises the following steps: uniformly mixing the above raw materials in proportion, adding the formed mixture into a twin-screw granulating unit, and carrying out extruding and granulating to obtain PBAT / PHA / wood flour particles, wherein the temperature of each section of the double-screw granulating unit is in a range of 45-200 DEG C, and the rotating speed of screws is 200-450 rpm.
Description
technical field [0001] The invention relates to the field of biodegradable film materials, in particular to a PBAT / PHA / wood powder composition suitable for preparing films and its preparation and application. Background technique [0002] Biodegradable plastics are a class of plastics that can be degraded by microorganisms that exist in nature. The ideal biodegradable plastic is non-toxic and harmless after degradation, and has excellent performance. [0003] Polybutylene terephthalate-adipate (PBAT) is a completely biodegradable aliphatic-aromatic copolyester, which has a higher elongation at break of more than 700%, and has Good flexibility and processability have been widely used in plastic flexible packaging, but the source of PBAT is still petrochemicals, which consume petroleum resources and generate more carbon dioxide emissions in the process of production and processing. [0004] Polyhydroxyalkanoate (PHA) is a kind of intracellular polyhydroxyalkanoate synthesize...
Claims
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