Bamboo fiber reinforced degradable PLA material and preparation method thereof

A bamboo fiber and raw material technology, applied in the field of bamboo fiber-reinforced degradable PLA material and its preparation, can solve the problems of difficult self-degradation of plastic waste, low weight utilization rate, ecological environment pollution, etc., and achieve good environmental benefits and economical Benefits, high production efficiency, and low equipment investment

Inactive Publication Date: 2016-01-13
FUZHOU FUSU SCI & TECH RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] China is rich in bamboo resources and has a well-developed bamboo processing industry. However, with the development of agriculture and forestry, the waste of bamboo products (bamboo powder, bamboo shreds, bamboo branches, etc.) in the process of forestry production and processing continues to increase, which not only pollutes the ecological environment, It also leads to a waste of material resources
According to statistics: the physical and mechanical properties of common bamboo processing, its weight utilization rate is less than 40%, more than 60% of bamboo becomes processing residues
In addition, with the continuous progress of society, plastic products have become more and more indispensable for people's daily life. However, while plastic products bring convenience to people, they also bring a series of problems: 1. The current plastics mainly It is extracted from non-renewable resources such as oil and natural gas, and the reserves of oil and other resources on the earth are limited. With the continuous exploitation of human beings, dangers are everywhere, and the price is soaring; 2. Plastic waste is difficult to degrade by itself in the environment. The application fields of plastic products continue to expand, and the resulting environmental pollution is becoming more and more serious

Method used

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  • Bamboo fiber reinforced degradable PLA material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] (1) Weigh 30 parts of polylactic acid resin by weight; 15 parts of bamboo fiber; 0.5 parts of hexamethyldisilazane coupling agent; 100 parts of calcium carbonate; maleic anhydride grafted polypropylene (PP-g-MA ) 0.5 parts; antioxidant 0.1 parts; stearic acid 0.5 parts; polyethylene wax 3 parts;

[0029] (2) Crush the bamboo fiber into bamboo powder that can pass through a 60-mesh sieve, and then vacuum-dry it at 110°C for 12 hours to make the moisture content 1%; Modified treatment to obtain active bamboo powder;

[0030] (3) Add the obtained active bamboo powder, polylactic acid resin, inorganic powder, compatibilizer, antioxidant, dispersant, and lubricant into the high-speed mixer in proportion, and mix at 1000r / min for 20min to make a premix;

[0031] (4) Inject the obtained premixed material into a single-screw extruder with an extrusion die temperature of 150°C, melt blend and granulate at a screw speed of 200r / min to obtain the bamboo fiber-reinforced degradabl...

Embodiment 2

[0033] (1) Weigh 40 parts by weight of polylactic acid resin; 27 parts of bamboo fiber; 1 part of aluminate coupling agent; 18 parts of talcum powder; maleic anhydride grafted EPDM rubber (EPDM-g-MA) 3.5 parts; 0.4 parts of antioxidant; 1.8 parts of magnesium stearate; 4 parts of polypropylene wax;

[0034] (2) Crush the bamboo fiber into bamboo powder that can pass through a 120-mesh sieve, and then vacuum-dry it at 110°C for 12 hours to make the moisture content 2%; Modified treatment to obtain active bamboo powder;

[0035] (3) Add the obtained active bamboo powder, polylactic acid resin, inorganic powder, compatibilizer, antioxidant, dispersant, and lubricant into the high-speed mixer in proportion, and mix at 1000r / min for 20min to make a premix;

[0036] (4) Inject the obtained premixed material into a single-screw extruder with an extrusion die temperature of 150°C, melt blend and granulate at a screw speed of 200r / min to obtain the bamboo fiber-reinforced degradable P...

Embodiment 3

[0038] (1) Weigh 70 parts by weight of polylactic acid resin; 40 parts of bamboo fiber; 0.5 parts of titanate coupling agent, 1.5 parts of polymerized isocyanate; 20 parts of kaolin, 10 parts of wollastonite powder; 5 parts of ethylene propylene rubber (EPDM-g-MA); 0.5 parts of antioxidant; 3 parts of magnesium stearate; 2 parts of strontium stearate, 3 parts of paraffin;

[0039] (2) Crush the bamboo fiber into bamboo powder that can pass through a 325-mesh sieve, and then vacuum-dry it at 110°C for 12 hours to make the moisture content 10%; Modified treatment to obtain active bamboo powder;

[0040] (3) Add the obtained active bamboo powder, polylactic acid resin, inorganic powder, compatibilizer, antioxidant, dispersant, and lubricant into the high-speed mixer in proportion, and mix at 1000r / min for 20min to make a premix;

[0041] (4) Inject the obtained premix into a multi-screw extruder with an extrusion die temperature of 150°C, melt blend and pelletize at a screw spee...

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PUM

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Abstract

The invention discloses a bamboo fiber reinforced degradable PLA material and a preparation method thereof. Raw materials for preparing the bamboo fiber reinforced degradable PLA material comprise, by weight, 30-70 parts of polylactic acid resin, 15-40 parts of bamboo fibers, 0.5-2 parts of a coupling agent, 10-30 parts of inorganic powder, 0.5-5 parts of a compatilizer, 0.1-0.5 parts of an antioxidant, 0.5-3 parts of a dispersant and 3-5 parts of a lubricant. The bamboo fiber reinforced degradable PLA material is prepared through blending the bamboo fibers and other assistants with the polylactic acid resin, so the strength of the PLA material is effectively improved, thereby the PLA material can be widely applied in fields of automobile parts, decoration finishing, electric appliance products and packaging; and the material also has the advantages of degradability, environmental protection, and good environmental and social benefits.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a bamboo fiber-reinforced degradable PLA material and a preparation method thereof. Background technique [0002] China is rich in bamboo resources and has a well-developed bamboo processing industry. However, with the development of agriculture and forestry, the waste of bamboo products (bamboo powder, bamboo shreds, bamboo branches, etc.) in the process of forestry production and processing continues to increase, which not only pollutes the ecological environment, It also causes a waste of material resources. According to statistics: the common physical and mechanical properties of bamboo are processed, and its weight utilization rate is lower than 40%, and more than 60% of bamboo becomes processing residues. In addition, with the continuous progress of society, plastic products have become more and more indispensable for people's daily life. However, whi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/04C08L97/02C08L51/06C08L51/04C08L51/00C08K13/02C08K3/26C08K3/34C08K5/098C08K5/134C08K5/526
Inventor 彭超吴惠民
Owner FUZHOU FUSU SCI & TECH RES INST CO LTD
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