Polycomponent combined degradable foamed plastic and its preparation method

A foamed plastic and multi-component technology, applied in the field of foamed plastics and its preparation, can solve problems such as poor thermal stability, difficult molding, and high cost performance of foamed plastics
CN1786072AInactive Publication Date: 2006-06-14朱家牧
5 Cites 24 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
朱家牧
Publication Date
2006-06-14
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
Patent Text Reader

Abstract

The present invention relates to a multicomponent combined degradable foamed plastic material and its preparation method. Its composition includes (by weight portion) 70-100 portions of modified polylactic acid mother granules, 1-20 portions of carbon dioxide resin and / or fatty polycaprolactone, 0.5-1.5 portions of lubricant demoulding agent, 1-5 portions of foaming agent and foaming adjuvant and 1-5 portions of cross-linking agent. Its preparation method includes the following steps: (1). inorganic powder body modification; (2). starch modification; (3). polylactic acid modification; and (4). plasticization foaming so as to obtain the degradable foamed plastic sheet material.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a foamed plastic and a preparation method thereof. Background technique

[0002] Foamed plastic is a material made of a blend of gas and plastic. It has greater compressibility and cushioning, and plays an important role in shock resistance and anti-shattering. At the same time, because the thermal conductivity of the air is very small, and it is enclosed in the plastic and cannot convect, so the foamed plastic is a material with very ideal heat insulation and heat preservation properties. Therefore, foamed plastics of various materials are widely used in multiple packaging, heat insulation, cushioning, and shockproof fields. Existing foamed plastics include foamed plastics made of materials such as polyethylene, EVA, polyvinyl chloride, polystyrene, polyurethane, and urea-formaldehyde, all of which are non-degradable plastics. Although it has been widely recognized by the society, it is not easy to recycle the waste after th...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More