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Degradable starch-based plastic masterbatch and preparation method thereof

A plastic masterbatch and degradable starch technology, which is applied in the field of degradable starch-based plastic masterbatch and its preparation, can solve the problems of natural environmental pollution and plastics without proper treatment methods, and achieve the goal of improving product quality, reducing molecular weight, and smooth surface Effect

Active Publication Date: 2012-05-09
孙彦升
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The plastic industry is developing rapidly, but the used plastic has not been properly disposed of, and plastic waste will bring serious pollution to the natural environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0074] Embodiment 1: A kind of degradable starch-based plastic masterbatch of this embodiment is prepared from the following raw materials according to their weight and part ratio:

[0075] Raw corn starch 65

[0076] Light calcium carbonate 7

[0077] Talc powder 3

[0078] Polypropylene resin 15

[0079] Aluminate coupling agent 2

[0080] Polyethylene wax 2

[0081] Itaconic acid 3

[0082] Epoxidized soybean oil 3.

[0083] In this embodiment, light calcium carbonate can increase the flexibility of the product, and when used to make plastic mulches or plastic bags, it can make the product fluffy, with better light transmittance, ductility and softness.

[0084] Talc powder can increase the strength of the product, that is, it has sufficient load-carrying capacity under the conditions of ensuring that the end product is light, thin, and has good light transmittance and flexibility.

[0085] The preparation method of the degradable starch-based plastic master batch, t...

Embodiment 2

[0103] Embodiment 2: A kind of degradable starch-based plastic masterbatch of this embodiment is prepared from the following raw materials according to their weight and part ratio:

[0104] Raw corn starch 40

[0105] Light calcium carbonate 20

[0106] Talc powder 3

[0107] Polypropylene resin 25

[0108] Aluminate coupling agent 2

[0109] Polyethylene wax 2

[0110] Itaconic acid 3

[0111] Epoxidized soybean oil 5.

[0112] The preparation method of the degradable starch-based plastic master batch, taking the production of 100kg of this product as an example, its preparation steps are as follows:

[0113] A. Weigh each component according to the weight and number ratio of the raw materials; wherein, the raw material moisture content of corn starch, light calcium carbonate and talcum powder is required to be less than 6%.

[0114] B. Put 40kg of raw corn starch, 20kg of light calcium carbonate, and 3kg of talcum powder in a mixer, and mix and stir for 20-30 minutes ...

Embodiment 3

[0120] Embodiment 3: A kind of degradable starch-based plastic masterbatch of this embodiment is prepared from the following raw materials according to their weight and part ratio:

[0121] Raw corn starch 70

[0122] Light calcium carbonate 10

[0123] Talc powder 2

[0124] Polypropylene resin 13

[0125] Aluminate coupling agent 1

[0126] Polyethylene wax 1

[0127] Itaconic acid 1

[0128] Epoxidized soybean oil 2.

[0129] The preparation method of the degradable starch-based plastic master batch, taking the production of 100kg of this product as an example, its preparation steps are as follows:

[0130] A. Weigh each component according to the weight and number ratio of the raw materials; wherein, the raw material moisture content of corn starch, light calcium carbonate and talcum powder is required to be less than 6%.

[0131] B. Put 70kg of raw corn starch, 10kg of light calcium carbonate, and 2kg of talcum powder in a mixer, and mix and stir for 20-30 minutes ...

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Abstract

The invention relates to degradable starch-based plastic masterbatch and a preparation method thereof. The degradable starch-based plastic masterbatch is prepared from the following raw materials in part by weight: 40 to 70 parts of starch, 10 to 20 parts of light calcium carbonate, 2 to 10 parts of fine aggregate, 13 to 25 parts of plastic materials, 1 to 5 parts of compatilizer, 1 to 5 parts oflubricant, 1 to 5 parts of modifier and 1 to 5 parts of degradation promoter. The light calcium carbonate and the fine aggregate are added into the degradable starch-based plastic masterbatch, so that the use level of synthetic polymers is reduced greatly; and through the preparation under the reasonable process condition, the quality of products is improved, and the cost is reduced by 45 percenton the premise of ensuring the degradation effect.

Description

technical field [0001] The invention relates to the technical field of biodegradation, in particular to a degradable starch-based plastic masterbatch and a preparation method thereof. Background technique [0002] Plastics have been widely developed in many fields because of their light weight, high strength, stable chemical properties and low cost. The plastic industry is developing rapidly, but the used plastics have not been properly disposed of, and plastic waste has brought serious pollution to the natural environment. The discarding of plastic waste will pollute the environment, deep burial will occupy the land, and burning will pollute the air. The fundamental way to solve the problem is to develop degradable plastics to replace non-degradable plastics. [0003] Environmentally degradable plastics are a new type of plastic. The development of environmentally degradable plastics abroad began in the 1970s. At that time, photodegradable plastics were mainly developed to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L3/06C08L23/12C08L23/06C08K13/02C08K3/26C08K3/34
CPCC08L23/12C08L3/02C08L23/08C08K3/26C08L23/06
Inventor 孙彦升
Owner 孙彦升
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