Preparation method of ramie stem and plastic composite material

A technology of composite materials and ramie stems, which is applied in the field of preparation of ramie stems and plastic composite materials, to achieve the effects of increasing added value, good processability, and low price

Active Publication Date: 2007-04-18
BILIC FORTUNE TECH
View PDF0 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method uses ramie rods as raw materials, which solves the compatibility problem between ramie fibers and plastics, and the composite materials produced can completely replace the existing wood-plastic composite materials.

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The first step is to use a 300-type German wood flour machine to crush the ramie stalks into 20-40 mesh ramie stalk powders, then dry the ramie stalk powders with hot air at 90°C for 24 hours, and control the water content within 3%; Dry LDPE and maleic anhydride grafted polyethylene at 70°C for 4 hours;

[0018] In the second step, the ramie stalk powder is sprayed with silane coupling agent KH550 in the kneader, the dosage is 1.5% of the weight of the ramie stalk powder, the temperature is 100°C, and the kneading time is 40 minutes, so that the coupling agent can evenly coat the ramie stalk powder and improve its Compatibility with plastic resin (coupling agent is diluted according to the weight ratio of coupling agent: dehydrated alcohol=1: 3 when spraying), makes modified ramie stalk powder;

[0019] In the third step, in parts by weight, 30 parts of modified ramie stalk powder and 70 parts of LDPE, 5 parts of maleic anhydride grafted polyethylene, 1 part of stearic...

Embodiment 2

[0023] The first step is to crush the ramie stalks into 20-40 mesh ramie stalk powder, then dry the ramie stalk powder with hot air at 95°C for 22 hours, and control the water content within 3%; at the same time, dry LDPE and Malay Anhydride grafted polyethylene for 3 hours;

[0024] In the second step, the ramie stalk powder is sprayed with titanate coupling agent NDZ-101 in the kneader. : the weight ratio dilution of dehydrated alcohol=1: 3), makes modified ramie stalk powder;

[0025] In the third step, in parts by weight, 30 parts of modified ramie stalk powder and 70 parts of LDPE, 5 parts of maleic anhydride grafted polyethylene, 1 part of stearic acid, 2 parts of PE wax, 0.1 part of antioxidant 1010, 0.05 168 parts of antioxidant are mixed evenly;

[0026] Step 4 Extrude the above-mentioned mixed material through a co-rotating twin-screw extruder, the screw heating temperature is 120-150° C., and the screw speed is 60-100 rpm to obtain the ramie stem and plastic compo...

Embodiment 3

[0029] The first step is to crush the ramie stalks into 40-60 mesh ramie stalk powder, then dry the ramie stalk powder with hot air at 100°C for 20 hours, and control the water content within 3%; meanwhile, dry HDPE and stalk powder at 90°C for 3 hours respectively. Maleic anhydride grafted high-density polyethylene;

[0030] The 2nd step ramie stalk powder sprays silane coupling agent KH550 in the kneader, consumption is 1.5% of ramie stalk powder weight, 110 ℃ of temperature, kneading time 60 minutes (coupling agent is according to coupling agent when spraying: dehydrated alcohol =1:3 weight ratio dilution), makes modified ramie stalk powder;

[0031] The third step is in parts by weight, with 40 parts of modified ramie stalk powder and 60 parts of HDPE, 5 parts of maleic anhydride grafted high-density polyethylene, 1 part of stearic acid, 2 parts of EBS, 0.1 part of antioxidant 1010, 0.05 parts of Antioxidant 168 are mixed evenly;

[0032] The fourth step extrudes the abo...

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
tensile strengthaaaaaaaaaa
bending strengthaaaaaaaaaa
flexural modulusaaaaaaaaaa
Login to view more

Abstract

This invention provides a preparation of a ramie stipe and plastic composite, including drying after shattering of ramie stipe, drying plastic gum and compatible agent separately, and aspersing couplant on ramie stipe powder. The dose of couplant is about 1-2% of ramie stipe powder. The weight amount is that ramie stipe powder 30-50, plastic gum 50-70, compatible agent 5-10, lubricant 2-4, antioxidant 0.1-0.3, bulking agent 0-10, fire - retardant agent 0-20, then uniformly mixed and extruding the mixture from the forcing machine. This invention solves the problem of the compatibility between herb fiber and plastic, and the surface treatment technology of raw materials.

Description

technical field [0001] The invention relates to the technical field of natural fiber composite materials and wood-plastic composite materials, in particular to a preparation method of ramie stems and plastic composite materials. Background technique [0002] Ramie is a unique herb plant in my country, known as "Chinese grass" internationally. According to the statistics of the Food and Agriculture Organization of the United Nations, my country's ramie production accounts for more than 98% of the world's total in recent years. People usually mainly use the bast fiber part of ramie as the fine fiber raw material of textiles (ramie fiber is the longest among all kinds of hemp fibers, generally 60-200mm long, and the longest can reach 600mm), while fresh ramie is stripped The last hemp stalk and epidermis are treated as waste incineration. These wastes account for about 2 / 3 of the whole ramie, and their main components are cellulose and hemicellulose...

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 Applications(China)
IPC IPC(8): C08L51/06C08K5/09B29C47/40C08L97/02C08K3/22C08K3/26C08K3/36
Inventor 蒋迪清郭晶晶谢开冀
Owner BILIC FORTUNE TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap