Straw fiber/PBS(poly butylene succinate)/PBAT (propylene adipate and polybutylene terephthalate) composite and preparation method thereof

A composite material and straw fiber technology, which is applied in the radiation-strengthened cross-linked straw fiber/PBS/PBAT ternary composite material and its preparation, and in the field of straw fiber plastic, can solve the problems of reducing the tensile strength and limitation of composite materials, and improve the Impact toughness, easy control, and the effect of improving interfacial compatibility

Inactive Publication Date: 2013-08-28
河南省科学院同位素研究所有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the introduction of PBAT greatly reduces the tensile strength of the composite material while improving the impact toughness and elongation at break, which limits the practical application of PBS composite materials in production.

Method used

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  • Straw fiber/PBS(poly butylene succinate)/PBAT (propylene adipate and polybutylene terephthalate) composite and preparation method thereof
  • Straw fiber/PBS(poly butylene succinate)/PBAT (propylene adipate and polybutylene terephthalate) composite and preparation method thereof
  • Straw fiber/PBS(poly butylene succinate)/PBAT (propylene adipate and polybutylene terephthalate) composite and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] figure 1Shown is the preparation process flow chart of the radiation-enhanced cross-linked straw fiber / PBS / PBAT ternary composite material provided by the present invention. Mainly include the following process steps:

[0045] (1) Raw material pretreatment

[0046] ① Place PBS, straw powder, PBS-g-MAH, and PBAT in a vacuum drying oven at 60°C for 48 hours;

[0047] ② First mix PBS, PBAT, and radiation sensitizer triallyl isocyanate according to the ratio in Table 1 in a high-speed mixer at room temperature for 3 minutes, then add straw powder and compatibilizer PBS-g- according to the ratio in Table 1. MAH and stearic acid were stirred for 5 minutes at room temperature in a high-speed mixer.

[0048] Table 1 Straw fiber / PBS / PBAT composites with different compositions

[0049]

[0050] (2) Twin-screw melt blending extrusion

[0051] ③Put the mixed raw materials into a twin-screw extruder to melt and mix them evenly and extrude and granulate. The extrusion conditi...

Embodiment 2

[0063] figure 1 Shown is the preparation process flow chart of the radiation-enhanced cross-linked straw fiber / PBS / PBAT ternary composite material provided by the present invention. Mainly include the following process steps:

[0064] (1) Raw material pretreatment

[0065] ① Place PBS, straw powder, PBS-g-MAH, and PBAT in a vacuum drying oven at 80°C for 24 hours;

[0066] ② Firstly mix PBS, PBAT, radiation sensitizer triallyl isocyanate according to the ratio in Table 3 in a high-speed mixer at room temperature for 2 minutes, then add straw powder and compatibilizer PBS-g- according to the ratio in Table 3 MAH and zinc stearate were stirred in a high-speed mixer at room temperature for 3 minutes.

[0067] Table 3 Straw fiber / PBS / PBAT composites with different compositions

[0068]

[0069] (2) Twin-screw melt blending extrusion

[0070] ③Put the mixed raw materials into a twin-screw extruder to melt and mix them evenly and extrude and granulate. The extrusion conditio...

Embodiment 3

[0082] figure 1 Shown is the preparation process flow chart of the radiation-enhanced cross-linked straw fiber / PBS / PBAT ternary composite material provided by the present invention. Mainly include the following process steps:

[0083] (1) Raw material pretreatment

[0084] ① Place PBS, straw powder, PBS-g-MAH, and PBAT in a vacuum drying oven at 100°C for 12 hours;

[0085] ② First mix PBS, PBAT, and radiation sensitizer trimethylolpropane trimethacrylate according to the ratio in Table 5 in a high-speed mixer at room temperature for 3 minutes, then add straw powder according to the ratio in Table 5 to increase volume The agent PBS-g-MAH and calcium stearate were stirred in a high-speed mixer at room temperature for 4 minutes.

[0086] Table 5 Straw fiber / PBS / PBAT composites with different compositions

[0087]

[0088] (2) Twin-screw melt blending extrusion

[0089] ③Put the mixed raw materials into a twin-screw extruder to melt and mix evenly and extrude and granulat...

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Abstract

The invention discloses a straw fiber / PBS(poly butylene succinate) / PBAT (propylene adipate and polybutylene terephthalate) composite and a preparation method thereof. The preparation method comprises the following steps: mixing the pre-treated PBS, straw powder, PBS-g-MAH, PBAT, compatibilizer, lubricant, radiation sensitizer according to a certain proportion, then melt blending and extruding through double screw, and then processing the obtained particles on an injection molding machine to form an injection product, and performing the radiation reinforcing crosslinking on the obtained injection product. The prepared straw fiber / PBS / PBAT ternary composite material is a high-tenacity, high-strength and high performance composite material capable of being completely degraded; compared with the pure PBS product, the straw powder in low cost is added in the composite material, the cost is greatly lowered and close to the general plastic product on the market; and furthermore, the composite material product is good in weather resistance, water resistance and heat resistance and capable of satisfying the market demand.

Description

technical field [0001] The invention belongs to the field of completely biodegradable materials, relates to straw fiber plastics, in particular to a radiation-enhanced cross-linked straw fiber / PBS / PBAT ternary composite material and a preparation method thereof, and also belongs to the field of nuclear technology applications. Background technique [0002] Due to the increasing consumption of petroleum resources for the manufacture of traditional plastics and the increasing global environmental pollution caused by petroleum-based plastics, biodegradable plastics with renewable, low-carbon, and environmentally friendly features have become the main development trend of the polymer material industry. According to relevant statistics from the European Bioplastics Association, in 2011, the global production of biodegradable plastics exceeded 1 million tons. [0003] In recent years, polybutylene succinate (PBS) with good biodegradability and mechanical properties has rapidly bec...

Claims

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Application Information

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IPC IPC(8): C08J7/12C08J3/28C08J3/24C08L67/02C08L97/02C08L51/08C08F283/02
Inventor 杨明成朱军郭东权罗永全赵惠东张宏娜李召朋李坤豪张本尚王允全彦君赵梅红王万里
Owner 河南省科学院同位素研究所有限责任公司
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