CN105482412A - Conductive fiberglass reinforced plastic material and manufacturing method thereof - Google Patents

Abstract

The invention discloses a conductive fiberglass reinforced plastic material. After ultralow temperature pretreatment is performed on fiberglass through a physical method, the bending resistance and the tensile property of the fiberglass are improved; through high temperature treatment, an original sizing material on the surface of the fiberglass is oxidized to be decomposed, and then water stored and adsorbed in the fiberglass is removed; the surface of the fiberglass is grafted with a modified porous carbon nano tube material through a chemical method; a hole structure is achieved, when the fiberglass is composited with a matrix, chain segments of some high polymers enter holes, a similar anchoring effect is achieved, the binding force betrween the fiberglass and a polymer interface is enhanced, the impact resistance of the product is improved, and the prepared fiberglass reinforced plastic material has the advantages of being good in mechanical property, corrosion resistance and electromagnetic shielding effect.

Description

A kind of conductive polyester glass-reinforced plastic material and preparation method thereof

Technical field

The present invention relates to glass fibre reinforced plastics technology field, particularly relate to a kind of conductive polyester glass-reinforced plastic material and preparation method thereof.

Background technology

Toy is the angel of children, and toy is with its chromatic colour, and graceful, unusual moulding, dexterous activity, the melodious sound etc. attract curiosity and the attention of child.The wide variety of toy, playing method is changeable, comprise down toy, plastic toy, papery toy, electronic toy, wooden toy, metal toy, leather toy, educational toy, early education toy, glass reinforced plastic toy, juvenile automobile and other miscellaneous toys, be wherein in great demand the most with down toy and juvenile automobile again.Juvenile automobile material often uses metallic substance and plastics, and not only price is high for metallic substance, matter escheat easily gets rusty, plastic crisp easily fall rotten, easily aging.Nowadays many employing glass-reinforced plastic material alternative metals materials and plastics.Glass reinforced plastic and fiber-reinforced plastic, refer generally to glass fiber reinforcement unsaturated polyester, epoxy resin and phenolic resin as matrix resin.Being applied to normal that automobile toy uses is matrix with unsaturated polyester, has light weight and hard, non-conductive, stable performance, the features such as physical strength is high, corrosion-resistant.Though China's glass-reinforced plastic material research and development in recent years obtain remarkable progress, but compare with Foreign Advanced Lerel, also there is a big difference, and main manifestations is poor product quality, kind is few, cost is high, and the bonding force of glass fibre and resin matrix is weak etc., is therefore the sunrise industry having very much development potentiality.

Patent CN104231584A adopts polyvinyl acetate (PVA) and corresponding segmented copolymer to be that low shrinkage additive reduces goods contraction in the curing process, improve the planeness of product surface, the advanced continuously shaped reinforced plastic plate technology of intermediate temperature setting is utilized to improve the degree of cure of product, enhance flexural strength, improve snappiness, finally replacing tradition to have halogen fire retardant with new halogen-free flame retardants, is that flame retardant effect is up to state standards the highest level of regulation.But this literary composition is by resin matrix and glass fibre direct combination, and both poor compatibility, are necessary to add in matrix resin existing glass fibre is in addition modified again.

Summary of the invention

The object of the invention is exactly the defect in order to make up prior art, provides a kind of conductive polyester glass-reinforced plastic material and preparation method thereof.

The present invention is achieved by the following technical solutions:

A kind of conductive polyester glass-reinforced plastic material, be made up of the raw material of following weight part:: unsaturated polyester 100-110, glass fibre 18-20, carbon nanotube 0.4-0.6, carbon fiber 5-7, silica gel 7-9, attapulgite 10-11, barium metaborate 0.2-0.4, Silane coupling reagent KH-570 8.2-9.5, triethyl aluminum 1.2-1.4, stearic acid 6-8, methylethyl ketone peroxide 2-3,1% aqueous ethanolic solution are appropriate.

The making method of described a kind of conductive polyester glass-reinforced plastic material, comprises the following steps:

(1) glass fibre is positioned in super low temperature equipment in subzero 100 DEG C to subzero 200 DEG C of super low temperature 10-15 hour, taking-up is risen again naturally, put into retort furnace at 550-600 DEG C of temperature, thermal treatment 1-2 hour, obtained pretreated glass fiber of naturally rising again;

(2) by Silane coupling reagent KH-570 with the volume ratio ultrasonic disperse of 1:50 in 1% aqueous ethanolic solution, be warming up to 80-90 DEG C, add carbon nanotube, stearic acid maintenance temperature stirs 30-40 minute, add the obtained pretreated glass fiber of step (1) material, carbon fiber, attapulgite immersion after 2-4 hour, decompress filter, dries the obtained modified glass-fiber of grinding by filter residue;

(3) unsaturated polyester is put into high mixer, adds barium metaborate, silica gel mixing 20-30 minute, then with above-mentioned modified glass-fiber and other remaining component compounds, finally in a mold 75-80 DEG C solidification 10-15 minute, the normal temperature demoulding, discharging.

Advantage of the present invention is: after glass fibre is first carried out very low temperature pre-treatment by physical method by the present invention, improve its anti-bending strength and tensile property, the original sizing material oxygenolysis of fiberglass surfacing is made through pyroprocessing, and then removing glass fibre stores the water of absorption, by chemical process, graft modification porous carbon nano-tube material is carried out to its surface again, there is void structure, treat that glass fibre and matrix carry out compound tense, the segment of some superpolymer enters into hole, play similar anchorage effect, add the bonding force between glass fibre and polymer interface, improve the impact resistance of product, it is good that obtained glass-reinforced plastic material has mechanical property, erosion resistance is good, the advantage that effectiveness is good.

Embodiment

A kind of conductive polyester glass-reinforced plastic material, is made up of the raw material of following weight part: unsaturated polyester 100, glass fibre 18, carbon nanotube 0.4, carbon fiber 5, silica gel 7, attapulgite 10, barium metaborate 0.2, Silane coupling reagent KH-570 8.5, triethyl aluminum 1.2, stearic acid 6, methylethyl ketone peroxide 2,1% aqueous ethanolic solution are appropriate.

The making method of described a kind of conductive polyester glass-reinforced plastic material, comprises the following steps:

(1) glass fibre is positioned in super low temperature equipment in subzero 100 DEG C to subzero 200 DEG C of super low temperature 10-15 hour, taking-up is risen again naturally, put into retort furnace at 550-600 DEG C of temperature, thermal treatment 1-2 hour, obtained pretreated glass fiber of naturally rising again;

(2) by Silane coupling reagent KH-570 with the volume ratio ultrasonic disperse of 1:50 in 1% aqueous ethanolic solution, be warming up to 80-90 DEG C, add carbon nanotube, stearic acid maintenance temperature stirs 30-40 minute, add the obtained pretreated glass fiber of step (1) material, carbon fiber, attapulgite immersion after 2-4 hour, decompress filter, dries the obtained modified glass-fiber of grinding by filter residue;

(3) unsaturated polyester is put into high mixer, adds barium metaborate, silica gel mixing 20-30 minute, then with above-mentioned modified glass-fiber and other remaining component compounds, finally in a mold 75-80 DEG C solidification 10-15 minute, the normal temperature demoulding, discharging.

The technical parameter index of the polyester fiberglass steel using the present invention to produce is as follows:

(1) tensile strength (MPa): 106;

(2) can reach 30dB to shielding electromagnetic waves effect, shield effectiveness is better;

(3) ultimate compression strength (MPa): 92.1;

(4) shock strength (KJ/m ²): 33.1.

Claims (2)

1. a conductive polyester glass-reinforced plastic material, it is characterized in that, be made up of the raw material of following weight part: unsaturated polyester 100-110, glass fibre 18-20, carbon nanotube 0.4-0.6, carbon fiber 5-7, silica gel 7-9, attapulgite 10-11, barium metaborate 0.2-0.4, Silane coupling reagent KH-570 8.2-9.5, triethyl aluminum 1.2-1.4, stearic acid 6-8, methylethyl ketone peroxide 2-3,1% aqueous ethanolic solution are appropriate.

2. the making method of a kind of conductive polyester glass-reinforced plastic material according to claim 1, is characterized in that comprising the following steps:

(1) glass fibre is positioned in super low temperature equipment in subzero 100 DEG C to subzero 200 DEG C of super low temperature 10-15 hour, taking-up is risen again naturally, put into retort furnace at 550-600 DEG C of temperature, thermal treatment 1-2 hour, obtained pretreated glass fiber of naturally rising again;

(2) by Silane coupling reagent KH-570 with the volume ratio ultrasonic disperse of 1:50 in 1% aqueous ethanolic solution, be warming up to 80-90 DEG C, add carbon nanotube, stearic acid maintenance temperature stirs 30-40 minute, add the obtained pretreated glass fiber of step (1) material, carbon fiber, attapulgite immersion after 2-4 hour, decompress filter, dries the obtained modified glass-fiber of grinding by filter residue;

(3) unsaturated polyester is put into high mixer, adds barium metaborate, silica gel mixing 20-30 minute, then with above-mentioned modified glass-fiber and other remaining component compounds, finally in a mold 75-80 DEG C solidification 10-15 minute, the normal temperature demoulding, discharging.