Unlock instant, AI-driven research and patent intelligence for your innovation.

Preparation method of polyvinyl chloride-modified sepiolite composite material

A technology of polyvinyl chloride powder and composite materials, which is applied in the field of preparation of polymer composite materials, can solve the problems of low interface bonding and bonding, and achieve the effects of environmental protection, good mechanical properties, and reduction of raw material costs

Inactive Publication Date: 2016-11-09
SHAANXI UNIV OF TECH
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Sepiolite powder is an inorganic substance, and polyvinyl chloride is an organic substance. When the two are melt-blended to form a composite material, there may be a problem of low interface bonding and bonding. Therefore, it is necessary to organically modify the surface of the sepiolite powder, so that Improve the interfacial binding force of sepiolite powder-polyvinyl chloride to improve its mechanical properties

Method used

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation method of polyvinyl chloride-modified sepiolite composite material
  • Preparation method of polyvinyl chloride-modified sepiolite composite material
  • Preparation method of polyvinyl chloride-modified sepiolite composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] The technical solution of the present invention will be further described in detail through specific examples below.

[0027] A preparation method of polyvinyl chloride-modified sepiolite composite material, comprising the following steps:

[0028] The first step, prepare alkali-treated sepiolite powder ①, epoxidized sepiolite powder ②, and modified sepiolite powder ③ according to the formula in Table 1, wherein, ① and ② are filtered after stirring at room temperature, and washed and filtered out with excess water , and then dry the filtrate. ③ Filtrate after stirring under heating conditions, wash the filtrate with excess water, and then dry the filtrate;

[0029] In the second step, the recovered waste rigid polyvinyl chloride products are crushed, cleaned, dried, and crushed into polyvinyl chloride powder;

[0030] The 3rd step, weigh and mix by table 1 formula, obtain compound, wherein plasticizer, embodiment 1 is di-n-butyl phthalate; Embodiment 2 is di-n-octyl p...

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

PUM

No PUM Login to View More

Abstract

The invention discloses a preparation method of a polyvinyl chloride-modified sepiolite composite material. According to the preparation method, sepiolite powder is reacted with sodium hydroxide, epoxy chloropropane, and diethylenetriamine successively so as to obtain modified sepiolite powder; recycled polyvinyl chloride, the modified sepiolite powder, a plasticizer, and a compatilizer are weighed at a certain mass ratio, and are subjected to melt-blending extrusion in an extruder so as to obtain the polyvinyl chloride-modified sepiolite powder composite material. The polyvinyl chloride-modified sepiolite powder composite material possesses low smell, is low in volatile matter content, and excellent in mechanical properties, can be used for processing plastic flowerpots for indoor use, and can be used as a packaging shell material; and application range of recycled polyvinyl chloride is widened.

Description

technical field [0001] The invention relates to a preparation technology of a polymer composite material, in particular to a preparation method of a polyvinyl chloride composite material. Background technique [0002] Polyvinyl chloride is a widely used plastic, which can be used to make water supply and drainage pipes, plastic steel doors and windows, wire insulation layers, auto parts, etc. The recycling and reuse of plastic products is an effective way to reduce the environmental pollution of plastic products, which is conducive to environmental protection and reduces the cost of raw materials in production. When the recycled polyvinyl chloride is reheated and plasticized for molding, a small amount of impurities that are not completely cleaned and removed during recycling may cause the plastic products made of recycled polyvinyl chloride to have an odor and affect the performance of the product. In addition, the thermal stability of polyvinyl chloride is not high. When ...

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

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C08L27/06C08K13/06C08K9/02C08K9/04C08K3/34C08K5/12C08K5/11C08K5/1515B29C47/92B29C48/92
CPCC08L27/06C08L2205/02C08L2207/20C08K13/06C08K9/02C08K9/04C08K3/34C08K5/12C08K5/1515C08K5/11
Inventor 杨晓明
Owner SHAANXI UNIV OF TECH