Starch-containing biomass cane-like material and preparation method thereof

A biomass and starch technology, applied in the field of imitation rattan materials, can solve the problems of not greatly improving the mechanical properties of the final product, increasing the wear degree of production equipment, reducing the melt index of materials, etc., to improve added value and good texture. , the effect of reducing the melt index

Inactive Publication Date: 2019-11-15
NANJING BIOFUNCTION CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, in the existing improved granulation of plastics, by directly adding starch to PE, PP or PVC for modification, only the degradability of the final product can be improved, and due to the combination of starch itself with PE, PP or PVC The property of starch is relatively weak, and it cannot greatly improve the mechanical properties of the final product, and the addition of too much starch will reduce the melt index of the material, affect extrusion molding, and increase the degree of wear and tear on the production equipment
Adding modified starch to rattan-woven composite materials can improve the performance of the product, but there is no application and related reports on this aspect so far.

Method used

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  • Starch-containing biomass cane-like material and preparation method thereof
  • Starch-containing biomass cane-like material and preparation method thereof
  • Starch-containing biomass cane-like material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Embodiment 1 (modified starch different add-on)

[0028] Preparation of modified starch: Add corn starch into a high-speed mixer, then add silane coupling agent accounting for 10% of the starch mass, heat to 100°C, and maintain the temperature for 15 minutes to obtain modified starch.

[0029] Get different weight parts of modified starch, compound with 100 parts of thermoplastic PLA, 5 parts of maleic anhydride grafting agent and 10 parts of POE to prepare starch-containing biomass imitation rattan material, the preparation method is as follows:

[0030] (1) Mixing of raw materials: take modified starch or modified starch-coffee grounds mixed biomass according to the weight ratio, then add thermoplastics, mix and stir evenly;

[0031] (2) Granulation: the mixture obtained in step (1) is added into a maleic anhydride grafting agent, mixed uniformly and placed in a granulation device for granulation to obtain a modified plastic masterbatch;

[0032] (3) Extrusion moldin...

Embodiment 2

[0038] Embodiment 2 (different types of starch modifiers)

[0039] Using cornstarch and thermoplastics as raw materials, after modifying cornstarch with different modifiers (the addition amount is 10% of the weight of cornstarch), 40 parts of modified starch, 100 parts of PLA, 5 parts of Malay Acid anhydride grafting agent, 10 parts of POE are raw materials, adopt the preparation method of embodiment 1 to carry out the preparation of rattan-like material, and carry out the same pretreatment and follow-up rattan-like material preparation with the mode that does not add modifier to corn starch as Control group, the performance test result of the prepared product is shown in Table 2 below:

[0040] Table 2 Effects of different modifiers on the properties of imitation rattan materials

[0041]

[0042]

[0043]It can be seen from Table 2 that the aqueous solution of hydroxypropyl vitamin can make the starch biomass imitation rattan have a better melt index, which can reduce...

Embodiment 3

[0045] Embodiment 3 (selection of different thermoplastics)

[0046] With silane coupling agent as modifier, with the weight ratio of modified starch and thermoplastic 40:100, select different types of raw materials, adopt the preparation method of embodiment 1 to carry out the preparation of imitation rattan material, specific raw material selection type and The performance test results of rattan-like materials are shown in Table 3 and Table 4 below:

[0047] Table 3 Effects of different thermoplastics on the properties of rattan-like materials

[0048]

[0049]

[0050] It can be seen from Table 3 that the properties of PLA and LLDPE are similar, and LLDPE has more advantages in terms of folding endurance. PLA is a fully degradable material, so PLA is preferred.

[0051] Table 4 Effects of different types of starch on the properties of rattan-like materials

[0052]

[0053] It can be seen from Table 4 that different types of starch have a certain impact on the pr...

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Abstract

The invention discloses a starch-containing biomass cane-like material. The starch-containing biomass cane-like material is prepared from modified starch and thermoplastic plastic; the modified starchis prepared through a following method comprising the steps that raw starch and a modification agent which accounts for 2-20% of the weight of starch are added into a high-speed mixing machine, a mixture is heated to 80-125 DEG C and is stirred for 10-15 min at high speed, and then the modified starch is obtained; a silane coupling agent is adopted as the modification agent, glycerin, hydrochloric acid, sulfuric acid or a hydroxypropyl cellulose solution; the weight ratio of the added modified starch to the added thermoplastic plastic is (20-60):100; one of polylactic acid, low-density polyethylene and linear low-density polyethylene, or a mixture of two or more of polylactic acid, low-density polyethylene and linear low-density polyethylene is adopted as the thermoplastic plastic. The prepared starch-containing biomass cane-like material has good performance, a preparation technology is simple, and the production cost is low.

Description

technical field [0001] The invention relates to a novel rattan weaving material, in particular to a rattan-like material modified with starch for plastics. Background technique [0002] As a traditional weaving material, rattan weaving material has always been favored by consumers. The small ones are like woven baskets, and the big ones are like rattan furniture. They are widely used in offices, outdoor leisure places, and homes. The traditional rattan weaving material uses natural rattan. Although it has the characteristics of good natural texture and renewable characteristics, it is replaced by imitation rattan materials in more and more places due to its susceptibility to mildew, insects, brittle cracks, and resource constraints. [0003] Imitation rattan is mostly made of plastic, mainly including PE rattan and PVC rattan, and their composite rattans; compared with natural rattan, plastic imitation rattan has a longer life, lower cost, rich color and easy processing, but...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/04C08L23/06C08L23/08C08L3/02C08L3/04C08L99/00C08L1/28
CPCC08L23/06C08L23/0815C08L67/04C08L2201/06C08L2205/03C08L2205/035C08L2207/066C08L3/04C08L99/00C08L1/284C08L3/02
Inventor 代益帆孙玉萍陈集双
Owner NANJING BIOFUNCTION CO LTD
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