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

PA/PP supercritical foam composite material and preparation method thereof

A composite material and supercritical technology, applied in the field of foaming materials, can solve the mechanical properties of foaming materials such as rebound rate, tensile strength, tear strength and poor performance, and the mechanical properties of foaming materials such as rebound rate and strength. Poor performance and use performance, small cell structure size, etc., to achieve the effect of improving quality stability, good mechanical properties and use performance, and small irreversible deformation

Inactive Publication Date: 2020-02-04
福建安达福新材料科技有限公司
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] 1. When foaming, it is difficult for the supercritical fluid (carbon dioxide) to enter the interior of the PP matrix material, resulting in low foaming efficiency, uneven foaming, small or large cell structure size, and unevenness, so that the foaming material returns Poor mechanical properties such as elasticity and strength and poor performance;
[0009] 2. The mechanical properties and performance of PP foam materials such as rebound rate, tensile strength and tear strength are poor

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
  • PA/PP supercritical foam composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] A PA / PP supercritical foaming composite material is made of raw materials comprising the following parts by weight:

[0060] 70-80 parts of polypropylene,

[0061] 15-20 parts of polyamide,

[0062] 15-20 parts of maleic acid grafted isoprene rubber,

[0063] 8-10 parts of dibutyl maleate grafted polypropylene,

[0064] 9-12 parts of maleic anhydride graft modifier,

[0065] 2.6-3.0 parts of graphene fiber,

[0066] 3.8 to 4.2 parts of glass fiber,

[0067] 1.8 to 2.4 parts of crosslinking agent,

[0068] 1.5-1.9 parts of nucleating agent;

[0069] The maleic anhydride graft modifier is prepared by reacting epoxy-group-containing polysiloxane with a mass ratio of 1: (2 to 3) and maleic anhydride-grafted polypropylene to obtain polypropylene-grafted silicon-containing group copolymer;

[0070] The graphene fiber is a graphene fiber spun from nanoscale edge graphene oxide sheets, and the fiber length is 80-120um.

[0071] Preferably, the PA / PP supercritical foam ...

Embodiment 2

[0094] A PA / PP supercritical foaming composite material is made of raw materials comprising the following parts by weight:

[0095] 70 parts of polypropylene,

[0096] 15 parts of polyamide,

[0097] 15 parts of maleic acid grafted isoprene rubber,

[0098] 8 parts of dibutyl maleate grafted polypropylene,

[0099] 9 parts of maleic anhydride graft modifier,

[0100] 2.6 parts of graphene fiber,

[0101] 3.8 parts of glass fiber,

[0102] 1.8 parts of crosslinking agent,

[0103] 1.5 parts of nucleating agent;

[0104] The maleic anhydride graft modifier is a polypropylene-grafted silicon-containing copolymer prepared by reacting epoxy-group-containing polysiloxane with a mass ratio of 1:2 and maleic anhydride-grafted polypropylene. ;

[0105] The graphene fiber is a graphene fiber spun from nanoscale edge graphene oxide sheet, and the fiber length is 80-100um.

[0106] In this embodiment, the polyamide is polyhexamethylene adipamide; the polypropylene is random polyp...

Embodiment 3

[0118] A PA / PP supercritical foaming composite material is made of raw materials comprising the following parts by weight:

[0119] 80 parts of polypropylene,

[0120] 20 parts of polyamide,

[0121] 20 parts of maleic acid grafted isoprene rubber,

[0122] 10 parts of dibutyl maleate grafted polypropylene,

[0123] 12 parts of maleic anhydride graft modifier,

[0124] Graphene fiber 3.0 parts,

[0125] 4.2 parts of glass fiber,

[0126]2.4 parts of crosslinking agent,

[0127] 1.9 parts of nucleating agent;

[0128] The maleic anhydride graft modifier is a polypropylene-grafted silicon-containing copolymer prepared by reacting epoxy-group-containing polysiloxane with a mass ratio of 1:3 and maleic anhydride-grafted polypropylene. ;

[0129] The graphene fiber is a graphene fiber spun from nanoscale edge graphene oxide sheets, and the fiber length is 100-120um.

[0130] In this embodiment, the polyamide is polyhexamethylene adipamide; the polypropylene is random polyp...

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

PropertyMeasurementUnit
Fiber lengthaaaaaaaaaa
Fiber lengthaaaaaaaaaa
Fiber lengthaaaaaaaaaa
Login to View More

Abstract

The invention discloses a PA / PP supercritical foam composite material and a preparation method thereof. The PA / PP supercritical foam composite material comprises, by weight, 70-80 parts of polypropylene, 15-20 parts of polyamide, 15-20 parts of maleic acid grafted isoprene rubber, 8-10 parts of dibutyl maleate grafted polypropylene, 9-12 parts of a maleic anhydride grafted modifier, 2.6-3.0 partsof graphene fibers, 3.8-4.2 parts of glass fibers, 1.8-2.4 parts of a cross-linking agent and 1.5-1.9 parts of a nucleating agent. The PA / PP supercritical foam composite material has the advantages ofuniformity in overall foaming, moderate foam pore structure size, high rebound rate, good size stability, small irreversible deformation after being pressed, high tensile strength, high tearing strength, good mechanical properties, durability, small density, light weight, good mechanical properties and good using properties.

Description

technical field [0001] The invention relates to the field of foam materials, in particular to a PA / PP supercritical foam composite material and a preparation method thereof. Background technique [0002] Polypropylene, referred to as PP, is a colorless, odorless, non-toxic, translucent solid substance. Polypropylene (PP) is a thermoplastic synthetic resin with excellent performance, which is a colorless and translucent thermoplastic lightweight general-purpose plastic. With chemical resistance, heat resistance, electrical insulation, high-strength mechanical properties and good high wear-resistant processing properties, etc., polypropylene has been rapidly used in machinery, automobiles, electronic appliances, construction, textiles, and packaging since its inception. It has been widely developed and applied in many fields such as agriculture, forestry, fishery and food industry. In recent years, with the rapid development of my country's packaging, electronics, automobile...

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
IPC IPC(8): C08L23/12C08L77/06C08L51/04C08L51/06C08L87/00C08K13/04C08K7/14C08K7/06C08K5/14C08K3/22C08K3/18C08J9/12
CPCC08J9/0023C08J9/0061C08J9/0066C08J9/0085C08J9/0095C08J9/122C08J2203/06C08J2203/08C08J2323/12C08J2451/04C08J2451/06C08J2477/06C08J2487/00
Inventor 丁尤权吕方舟丁雪峰
Owner 福建安达福新材料科技有限公司