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Biodegradable polycarbonate butylene terephthalate composite material and preparation method of biodegradable polycarbonate butylene terephthalate composite material

The technology of polybutylene carbonate and polybutylene carbonate is applied in the field of biodegradable polybutylene carbonate type composite material and its preparation, and can solve the problem of high film brittleness, no light conversion, and melt strength. Low and other problems, to achieve the effect of good film formation, good light conversion effect and high melt strength

Inactive Publication Date: 2011-08-17
JIANGSU XINGYE PLASTIC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the stages of development, the existing biodegradable polymer materials have certain shortcomings. For example, polylactic acid is relatively cheap, but its melt strength is low, which makes it difficult to blow the film. low cracking strength; other films such as polyhydroxyalkanoate (PHA, PHB, PHBV), aliphatic polycarbonate (APC), polyvinyl alcohol (PVA), etc. have problems such as poor mechanical properties, and traditional Biodegradable films have poor UV resistance and no light conversion, which significantly affect the large-scale promotion and use of biodegradable plastics

Method used

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  • Biodegradable polycarbonate butylene terephthalate composite material and preparation method of biodegradable polycarbonate butylene terephthalate composite material
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Weigh each component according to the following parts by weight: PBC: 50.0, PLA: 36.0, compound type rare earth β nucleating agent, that is, rare earth composite nucleating agent (nano cerium oxide: nano europium oxide 65:35) 1.0, cage octamer Anilinomethylsilsesquioxane: 1.0, Polyethylene Glycol: 5.0, Butylene Dibutyltin: 2.5, Bisphenol A: 0.5, Stearic Acid: 0.7, Silicon Dioxide: 1.0, Malonic Acid: 0.05, Calcium Carbonate: 4.0.

[0034] Preparation steps and conditions are:

[0035] Weigh the matrix resin in proportion, dry it in an oven at 30°C for 6 hours in advance, and mix the weighed nano-cerium oxide and nano-europium oxide in proportion, then put the baked matrix resin into the high-speed mixer, and start to mix at a low speed. Stir, while stirring, add the weighed rare earth composite nucleating agent, dispersant, plasticizer, heat-resistant stabilizer, antioxidant, lubricant, anti-blocking agent, biodegradation accelerator and filler in turn, stir at low spee...

Embodiment 2

[0040]Weigh each component according to the following parts by weight: PBC: 55.0, polycaprolactic acid PCL: 30.0, compound type rare earth β nucleating agent, that is, rare earth composite nucleating agent (nano cerium oxide: nano europium oxide 60:40): 1.5 , Cage octapolyaniline methyl silsesquioxane: 0.5, polypropylene glycol adipate: 5.0, zinc oxide: 2.5, ethyl phosphite: 0.5, stearic acid: 0.7, silicon dioxide: 1.0, propane Diacid: 0.05, calcium carbonate: 4.0;

[0041] See Example 1 for the preparation steps and conditions.

[0042] The performance comparison of the obtained film products is shown in Table 2.

[0043] Table 2:

Embodiment 3

[0045] Weigh each component according to the following parts by weight: PBC: 50.0, PBS: 35.0, compound type rare earth β nucleating agent, that is, rare earth composite nucleating agent (nano cerium oxide: nano europium oxide 70:30): 1.0, cage type eight Polyaniline methyl silsesquioxane: 0.5, epoxy soybean oil: 10.0, calcium stearate: 3.0, ethyl phosphite: 0.5, stearic acid: 1.0, silicon dioxide: 1.0, oxalic acid: 0.05, white Carbon black: 4.0;

[0046] See Example 1 for the preparation steps and conditions.

[0047] The performance comparison of the obtained film products is shown in Table 3.

[0048] table 3:

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Abstract

The invention relates to a biodegradable polycarbonate butylene terephthalate composite material and a preparation method of the biodegradable polycarbonate butylene terephthalate composite material. The biodegradable polycarbonate butylene terephthalate composite material is characterized in that the material comprises the following components in part by weight: 30 to 70 parts of aliphatic polycarbonate butylene terephthalate, 10 to 40 parts of other biodegradable materials, 1.0 to 10 parts of filler, 0.5 to 1.5 parts of rare earth composite nucleating agent, 0.5 to 1.5 parts of dispersant, 4.0 to 15 parts of plasticizer, 1.5 to 4 parts of heat resistance stabilizer, 0.05 to 1.5 parts of antioxidant, 0.5 to 1.0 part of lubricant, 0.1 to 1.0 part of anti-block agent and 0.05 to 0.5 part of biodegradation accelerator. The composite material has high melt strength, good film forming ability, high tensile strength, high tearing strength and good light-conversion effect.

Description

technical field [0001] The invention relates to a biodegradable plastic material, in particular to a biodegradable polybutylene carbonate composite material and a preparation method thereof. Background technique [0002] While the development of the traditional plastics industry meets the needs of social development and people's lives, it also brings immeasurable negative impacts on the environment on which human beings depend. The waste of these traditional plastic products after use is as high as 50%-60%. According to incomplete statistics, the total amount of plastic waste in the world is as high as 50 million tons every year, and it takes 200-400 years for them to completely decompose in nature. The environmental pollution caused by these waste plastics is becoming more and more serious. In order to solve the problem of "white pollution" caused by plastic products, the use of environmentally friendly fully biodegradable polymers to replace traditional petroleum-based pl...

Claims

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Application Information

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IPC IPC(8): C08L67/00C08L67/04C08L67/02C08L69/00C08L29/04C08K13/02C08K3/22C08K3/36C08K5/549C08G63/64
Inventor 顾晓华李春成薛纪良朱文祥承耀明卞忠华季海锋潘洁陈俊龙
Owner JIANGSU XINGYE PLASTIC
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