Starch-based degradable garbage bag material and preparation process thereof

A preparation process and technology for garbage bags, applied in the field of high-density polyethylene, can solve the problems of high preparation cost, brittle cracking and the like, and achieve the effect of good dispersibility

Inactive Publication Date: 2012-02-01
佛山市衡龙科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since high-density ethylene is an environmentally friendly material, it can be recycled and reused when it is heated to its melting point, so it can be made into HDPE garbage bags by adding an appropriate amount of additives. In recent years, with the gradual enhancement of people's awareness of environmental protection, people's requirements for garbage bags It is also constantly improving, and the garbage bags are required to be degradable to avoid white pollution. However, the degradable garbage bags currently on the market generally have problems such as high preparation costs and brittle cracking, which are difficult to meet people's daily needs.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0036] A starch-based degradable garbage bag material of the present invention is characterized in that its components and weight ratios include:

[0037] 84-93 parts of heavy calcium carbonate (particle size 2500 mesh)

[0038] 18-23 parts of cornstarch

[0039] Surface treatment agent 1-1.8 parts

[0040] POE 4-9 copies

[0041] HDPE 54-63 parts

[0042] 1-3 parts of polyisobutylene.

[0043] The present embodiment is preferred, 90 parts of heavy calcium carbonate

[0044] 20 parts cornstarch

[0045] Surface treatment agent 1.5 parts

[0046] POE 5 copies (Japan Mitsui 810)

[0047] HDPE 60 parts (Yanshan Petrochemical 5000S)

[0048] 2 parts of polyisobutylene (Korea PB2400).

[0049] The preparation process of starch-based degradable garbage bag material, its steps are as follows:

[0050] 1. First add anhydrous sodium sulfate and cornstarch to a horizontal double-ribbon mixer, heat and mix at a medium speed for 30 minutes to achieve the effect of mixing and dry...

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Abstract

The invention discloses a starch-based degradable garbage bag material and a preparation process thereof. The garbage bag material is characterized by comprising the following components in parts by weight: 84-93 parts of heavy calcium carbonate, 18-23 parts of corn starch, 1-1.8 parts of surface treating agent, 4-9 parts of POE (Polyolefin Elastomer), 54-63 parts of HDPE (High-Density Polyethylene) and 1-3 parts of polyisobutene. The garbage bag material has the advantages of high dispersity, original longitudinal and transverse tensile force and good popularization value.

Description

technical field [0001] The invention relates to the technical field of high-density polyethylene, in particular to a starch-based degradable garbage bag material and a preparation process thereof. Background technique [0002] High-density polyethylene (High Density Polyethylene, referred to as "HDPE") is a highly crystalline, non-polar thermoplastic resin, and a thermoplastic polyolefin produced by copolymerization of ethylene. The appearance of the original HDPE is milky white, and the thin section is translucent to a certain extent. PE has excellent resistance to most domestic and industrial chemicals. Certain classes of chemicals can cause chemical corrosion, such as corrosive oxidizers (concentrated nitric acid), aromatic hydrocarbons (xylene) and halogenated hydrocarbons (carbon tetrachloride). The polymer is non-hygroscopic and has good water vapor resistance for packaging purposes. The unique properties of the various grades of HDPE are the proper combination of f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L3/02C08L23/20C08K9/10C08K3/26C08K3/30
Inventor 冯建强
Owner 佛山市衡龙科技有限公司
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