CN107674384A - Automobile using low bulk structural reinforcement material, structural reinforcement and preparation method thereof - Google Patents
Automobile using low bulk structural reinforcement material, structural reinforcement and preparation method thereof Download PDFInfo
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- CN107674384A CN107674384A CN201711029275.8A CN201711029275A CN107674384A CN 107674384 A CN107674384 A CN 107674384A CN 201711029275 A CN201711029275 A CN 201711029275A CN 107674384 A CN107674384 A CN 107674384A
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- C08J5/04—Reinforcing macromolecular compounds with loose or coherent fibrous material
- C08J5/0405—Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres
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- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
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- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
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Abstract
This application discloses a kind of automobile using low bulk structural reinforcement material, structural reinforcement and preparation method thereof, wherein structural reinforcement material is mainly prepared by following raw material：50 60 parts of epoxy resin, 14 parts of reinforcing agent, 5 10 parts of toughener, 15 parts of thixotropic agent, 0.1 0.8 parts of coloring agent, 15 parts of reinforcing fiber, 25 parts of accelerator, 1 10 parts of curing agent, 13 parts of foaming agent, 10 15 parts of filler.The application is using solid epoxy resin as matrix material, curing reaction occurs for matrix material in paint line baking process, material self-strength significantly strengthens, during structural reinforcement foaming agent act on volumetric expansion, it is bonded bodywork cavity, and very strong bonding force is produced to the steel plate of cavity both sides, reach enhancing bus body strength effect, reduce requirement of the automobile to vehicle body steel plate high intensity.
Description
Technical field
The application is related to a kind of structural reinforcement material, and in particular to a kind of automobile using low bulk structural reinforcement material, structure
Reinforcement and preparation method thereof.
Background technology
With the development of automobile industry, lightweight has turned into a main trend of automobile industry, in order to mitigate car body weight, greatly
Part main engine plants using 0.8mm steel plates as body frame material, light-weighted while cause under vehicle body bulk strength
Drop, the particularly position of body upright post and side bar, are easy to deform in central collision, side impact.Existing reinforcing plate, structure glue
There is good effect to the intensity enhancing of vehicle body steel plate Deng structural reinforcement material, but cavity is formed to vehicle body steel plate and does not have increasing
Potent fruit, and cavity also easily causes the vibration of vehicle body.
The content of the invention
In view of drawbacks described above of the prior art or deficiency, it is expected to provide a kind of automobile using low bulk structural reinforcement material,
Structural reinforcement and preparation method thereof, to improve bus body strength, mitigate car body weight, reduce the vibration of vehicle body.
In a first aspect, the application provides a kind of automobile using low bulk structural reinforcement material, mainly by following raw material
It is prepared：
For the present invention using solid epoxy resin as matrix material, high-intensity resin is framework material, using physical blowing agent or
CBA, curing reaction occurs for matrix material in paint line baking process, and material self-strength significantly strengthens, this
During the structural reinforcement under foaming agent effect, volumetric expansion, be bonded bodywork cavity, and the steel plates of cavity both sides is produced
Very strong bonding force, reach enhancing bus body strength effect, reduce requirement of the automobile to vehicle body steel plate high intensity.This material is being sent out
Density after bubble is only in 0.5g/cm3Left and right, and be loose structure, car body weight is both alleviated, partial noise can be absorbed again.
In order that the structural reinforcement disclosure satisfy that thermoforming process condition, and the energy in paint line baking process
Expansion curing, high-performance accelerator is with the addition of in formula, make the structural reinforcement that there is excellent storage stability, and also
It can be made to realize rapid curing at high temperature.
Preferably, the raw material also include 2-5 parts by weight maleic anhydride be modified SEBS (styrene-butadiene of hydrogenation-
Styrene block copolymer rubber).In formula designs, a kind of maleic anhydride modified SEBS is with the addition of, is total to by physics
After mixed, the molecular separating force of the rubber components that styrene phase and epoxy resin in SEBS connect by phenyl ring and jointly is tied
Close, it is possible to increase the resistance to tearing energy of product.
Preferably, the reinforcing agent is the addition compound product of solid-state bis-phenol A glycidyl ether and liquid rubber.Liquid rubber
Add, impart epoxy systems certain toughness and pliability.Liquid rubber can be with by its active end group (such as carboxyl, hydroxyl)
Active group (epoxy radicals, hydroxyl etc.) reaction forms block in epoxy resin, and during batch mixing, due to shear stress
The effect of field, initial network structure is formed, product can be made after hardening, improve the cohesive force between its molecule, so as to improve this
While the shortcomings that structural reinforcement toughness of material difference, its impact strength, peel strength and tensile shear strength are also improved.Separately
Outside, the relatively low glass transition temperature of liquid rubber causes material at low temperature performance enhancement.In the reinforcing agent due to exist epoxy into
Point, so playing corresponding humidification in use, can have good compatibility with epoxide resin material as reinforcing agent.
Therefore, this reinforcing agent can improve impact strength, peel strength and tensile shear strength and lower temperature resistance, can also impart to ring
Oxygen resin toughness and pliability.
Preferably, the epoxy resin is that one or both of cycloaliphatic epoxy resin, bisphenol A type epoxy resin are common
It is mixed.
Preferably, the epoxy resin is bisphenol A type epoxy resin, 730~790g/Eq of epoxide equivalent, softening point 90~
94℃.Epoxy resin used in the present invention belongs to bisphenol A-type, and transparency is high, narrow molecular weight distribution.
Preferably, the accelerator is the one or more in double hydrazine, hydrazides class, imidazoles or DICY compound systems
Mixing, it is ensured that material can solidify in the stability of low temperature and in suitable temperature.
Preferably, the toughener is the copolymer of acrylonitrile and butadiene, can be effectively improved the fragility of epoxy resin.
Preferably, the curing agent is one in fatty amine, aliphatic cyclic amine, aromatic amine, polyamide, acid anhydrides, resinae, tertiary amine
Kind or several mixing.
Second aspect, the application also provide the structure that a kind of above-mentioned automobile using low bulk structural reinforcement material is process
Reinforcement.
The third aspect, the application also provide a kind of preparation method of above-mentioned automobile using low bulk structural reinforcement material, bag
Include following steps：
(1) epoxy resin is added in banbury, toughener, reinforcing agent, mixing temperature is set as 85 DEG C, and banburying 15min is extremely
Improving uniformity of melt state；
(2) by thixotropic agent, inorganic filler, coloring agent, reinforcing fiber added in banbury, banburying 20min, equal to batch mixing
It is even；
(3) accelerator, foaming agent and curing agent are added, after being kneaded 3~5min, terminates batch mixing, and is drawn off, is obtained
Automobile using low bulk structural reinforcement material for injection structure reinforcement.
Preferably, also need to add maleic anhydride modified SEBS in step (1) banbury.
The application has the advantages and positive effects of：The present invention is using solid epoxy resin as matrix material, high intensity tree
Fat is framework material, and using physical blowing agent or CBA, matrix material occurs solid in paint line baking process
Change reaction, material self-strength significantly strengthens, and structural reinforcement is under foaming agent effect during this, volumetric expansion, fitting
Bodywork cavity, and very strong bonding force is produced to the steel plate of cavity both sides, reach enhancing bus body strength effect, reduce automobile pair
The requirement of vehicle body steel plate high intensity.The density of this material after expanding is only in 0.5g/cm3Left and right, and be loose structure, both mitigated
Car body weight, can absorb partial noise again.
Except the technical problem of the application described above solution, form the technical characteristic of technical scheme and by these
Outside advantage caused by the technical characteristic of technical scheme, wrapped in other technologies problem that the application can solve, technical scheme
Advantage caused by the other technical characteristics contained and these technical characteristics, will hereinafter be described in further detail.
Embodiment
The application is described in further detail with reference to embodiment.It is understood that tool described herein
Body embodiment is used only for explaining related invention, rather than the restriction to the invention.It should be noted that in situation about not conflicting
Under, the feature in embodiment and embodiment in the application can be mutually combined.
In the examples below, unless otherwise indicated, each material composition is commercially available prod.
Embodiment 1
The present embodiment provides a kind of automobile using low bulk structural reinforcement material, mainly prepared by following raw material and
Into：58.8 parts of epoxy resin, 6.0 parts of toughener, 3.0 parts of reinforcing agent, 3.0 parts of thixotropic agent, 12.0 parts of filler, 0.2 part of coloring agent,
2.0 parts of reinforcing fiber, 2.0 parts of accelerator, 6.0 parts of curing agent, 2.0 parts of foaming agent, maleic anhydride modified SEBS3.0 parts.
Preparation process：(1) epoxy resin, toughener, reinforcing agent, maleic anhydride modified SEBS, banburying are added in banbury
Temperature is set as 85 DEG C, banburying 15min to improving uniformity of melt state.Its epoxy resin can be cycloaliphatic epoxy resin, bisphenol-A
One or both of type epoxy resin is blended, and the epoxy resin used in the present embodiment belongs to bisphenol A-type, and transparency is high, molecule
Measure narrowly distributing, 730~790g/Eq of epoxide equivalent, 90~94 DEG C of softening point.Wherein toughener is a kind of acrylonitrile and butadiene
Copolymer, the fragility of epoxy resin can be effectively improved.Wherein reinforcing agent is a kind of solid-state bis-phenol A glycidyl ether and liquid rubber
The addition compound product of glue, impact strength, peel strength and tensile shear strength and lower temperature resistance can be improved, can also impart to ring
Oxygen resin toughness and pliability.
(2) by thixotropic agent, inorganic filler, coloring agent, reinforcing fiber added in banbury, banburying 20min, uniform to batch mixing.
Wherein thixotropic agent is aerosil, thinning by shear action, material when processing；After operation terminates, then again
Retrogradation will not trickle.Wherein filler typically uses inorganic filler, can be aluminium hydroxide, calcium oxide, talcum powder, lightweight carbonic acid
Calcium, glass microsphere etc.；The filling aluminium hydrate that the present embodiment uses.Wherein reinforcing fiber can be that glass fibre or resin are fine
Other inorganic fibers beyond dimension or glass fibre；The glass fibre that the present embodiment uses.
(3) accelerator, foaming agent and curing agent are added, after being kneaded 3~5min, terminates batch mixing, and is drawn off, is obtained
Automobile using low bulk structural reinforcement material for injection structure reinforcement.Wherein accelerator can be double hydrazine, hydrazides class, miaows
One or more in azole or DICY compound systems, it is ensured that material can be consolidated in the stability of low temperature and in suitable temperature
Change；The present embodiment is using double hydrazine accelerator.Wherein curing agent includes fatty amine, aliphatic cyclic amine, aromatic amine, polyamide, acid anhydrides, tree
Lipid, tertiary amine etc.；The present embodiment is blended using aliphatic cyclic amine and aromatic amine.Foaming agent can be physical blowing agent or chemical blowing
It agent, need to meet in automobile production baking process, can foam and meet expansion ratio；The present embodiment uses physical blowing agent.
The present embodiment also provides a kind of be molded after being granulated by above-mentioned automobile using low bulk structural reinforcement material and knot is made
Structure reinforcement.
Embodiment 2
The present embodiment provides a kind of automobile using low bulk structural reinforcement material, mainly prepared by following raw material and
Into：53.8 parts of epoxy resin, 5.0 parts of toughener, 4.0 parts of reinforcing agent, 2.0 parts of thixotropic agent, 15.0 parts of filler, 0.2 part of coloring agent,
4.0 parts of reinforcing fiber, 3.0 parts of accelerator, 7.0 parts of curing agent, 3.0 parts of foaming agent, maleic anhydride modified SEBS3.0 parts.
Preparation process：(1) epoxy resin, toughener, reinforcing agent, maleic anhydride modified SEBS, banburying are added in banbury
Temperature is set as 85 DEG C, banburying 15min to improving uniformity of melt state.Its epoxy resin can be cycloaliphatic epoxy resin, bisphenol-A
One or both of type epoxy resin is blended, and the epoxy resin used in the present embodiment belongs to bisphenol A-type, and transparency is high, molecule
Measure narrowly distributing, 730~790g/Eq of epoxide equivalent, 90~94 DEG C of softening point.Wherein toughener is a kind of acrylonitrile and butadiene
Copolymer, the fragility of epoxy resin can be effectively improved.Wherein reinforcing agent is a kind of solid-state bis-phenol A glycidyl ether and liquid rubber
The addition compound product of glue, impact strength, peel strength and tensile shear strength and lower temperature resistance can be improved, can also impart to ring
Oxygen resin toughness and pliability.
(2) by thixotropic agent, inorganic filler, coloring agent, reinforcing fiber added in banbury, banburying 20min, uniform to batch mixing.
Wherein thixotropic agent is aerosil, thinning by shear action, material when processing；After operation terminates, then again
Retrogradation will not trickle.Wherein filler typically uses inorganic filler, can be aluminium hydroxide, calcium oxide, talcum powder, lightweight carbonic acid
Calcium, glass microsphere etc.；The hollow glass micro-ball filler that the present embodiment uses.Wherein reinforcing fiber can be glass fibre or tree
Other inorganic fibers beyond fat fiber or glass fibre；The resin fibre that the present embodiment uses.
(3) accelerator, foaming agent and curing agent are added, after being kneaded 3~5min, terminates batch mixing, and is drawn off, is obtained
Automobile using low bulk structural reinforcement material for injection structure reinforcement.Wherein accelerator can be double hydrazine, hydrazides class, miaows
One or more in azole or DICY compound systems, it is ensured that material can be consolidated in the stability of low temperature and in suitable temperature
Change；The present embodiment uses hydrazides class and imidazoles mixed accelerators.Wherein curing agent includes fatty amine, aliphatic cyclic amine, aromatic amine, poly-
Acid amides, acid anhydrides, resinae, tertiary amine etc.；The present embodiment uses fatty amine curing agent.Foaming agent can be physical blowing agent or change
Foaming agent is learned, need to be met in automobile production baking process, can foam and meet expansion ratio；The present embodiment is sent out using physics
Infusion.
The present embodiment also provides a kind of be molded after being granulated by above-mentioned automobile using low bulk structural reinforcement material and knot is made
Structure reinforcement.
Embodiment 3
The present embodiment provides a kind of automobile using low bulk structural reinforcement material, mainly prepared by following raw material and
Into：50.0 parts of epoxy resin, 5.0 parts of toughener, 1.0 parts of reinforcing agent, 1.0 parts of thixotropic agent, 10.0 parts of filler, 0.1 part of coloring agent,
1.0 parts of reinforcing fiber, 2.0 parts of accelerator, 1.0 parts of curing agent, 1.0 parts of foaming agent.
Preparation process：(1) epoxy resin added in banbury, and toughener, reinforcing agent, mixing temperature is set as 85 DEG C, banburying
15min is to improving uniformity of melt state.Its epoxy resin can be cycloaliphatic epoxy resin, one kind in bisphenol A type epoxy resin
Or two kinds of blendings, the epoxy resin used in the present embodiment belong to cycloaliphatic epoxy resin.Wherein toughener be a kind of acrylonitrile with
The copolymer of butadiene, the fragility of epoxy resin can be effectively improved.Wherein reinforcing agent is a kind of solid-state bis-phenol A glycidyl ether
With the addition compound product of liquid rubber, impact strength, peel strength and tensile shear strength and lower temperature resistance can be improved, may be used also
To assign epoxy resin toughness and pliability.
(2) by thixotropic agent, inorganic filler, coloring agent, reinforcing fiber added in banbury, banburying 20min, uniform to batch mixing.
Wherein thixotropic agent is aerosil, thinning by shear action, material when processing；After operation terminates, then again
Retrogradation will not trickle.Wherein filler typically uses inorganic filler, can be aluminium hydroxide, calcium oxide, talcum powder, lightweight carbonic acid
Calcium, glass microsphere etc.；The precipitated calcium carbonate filler that the present embodiment uses.Wherein reinforcing fiber can be glass fibre or resin
Other inorganic fibers beyond fiber or glass fibre；The glass fibre that the present embodiment uses.
(3) accelerator, foaming agent and curing agent are added, after being kneaded 3~5min, terminates batch mixing, and is drawn off, is obtained
Automobile using low bulk structural reinforcement material for injection structure reinforcement.Wherein accelerator can be double hydrazine, hydrazides class, miaows
One or more in azole or DICY compound systems, it is ensured that material can be consolidated in the stability of low temperature and in suitable temperature
Change；The present embodiment uses imidazoles accelerator.Wherein curing agent includes fatty amine, aliphatic cyclic amine, aromatic amine, polyamide, acid anhydrides, tree
Lipid, tertiary amine etc.；The present embodiment uses anhydride curing agent.Foaming agent can be physical blowing agent or CBA, need to expire
Foot can foam in automobile production baking process and meet expansion ratio；The present embodiment uses physical blowing agent.
The present embodiment also provides a kind of be molded after being granulated by above-mentioned automobile using low bulk structural reinforcement material and knot is made
Structure reinforcement.
Embodiment 4
The present embodiment provides a kind of automobile using low bulk structural reinforcement material, mainly prepared by following raw material and
Into：60.0 parts of epoxy resin, 10.0 parts of toughener, 4.0 parts of reinforcing agent, 5.0 parts of thixotropic agent, 15.0 parts of filler, coloring agent 0.8
Part, 2.0 parts of reinforcing fiber, 2.0 parts of accelerator, 10.0 parts of curing agent, 3.0 parts of foaming agent, 5 parts maleic anhydride modified of SEBS.
Preparation process：(1) epoxy resin added in banbury, and toughener, reinforcing agent, mixing temperature is set as 85 DEG C, banburying
15min is to improving uniformity of melt state.Its epoxy resin can be cycloaliphatic epoxy resin, one kind in bisphenol A type epoxy resin
Or two kinds of blendings, two kinds of blendings of cycloaliphatic epoxy resin and bisphenol A type epoxy resin used in the present embodiment.Wherein toughener is
A kind of copolymer of acrylonitrile and butadiene, the fragility of epoxy resin can be effectively improved.Wherein reinforcing agent is a kind of Solid Double
The addition compound product of phenol A glycidol ethers and liquid rubber, can improve impact strength, peel strength and tensile shear strength and
Lower temperature resistance, it can also impart to epoxy resin toughness and pliability.
(2) by thixotropic agent, inorganic filler, coloring agent, reinforcing fiber added in banbury, banburying 20min, uniform to batch mixing.
Wherein thixotropic agent is aerosil, thinning by shear action, material when processing；After operation terminates, then again
Retrogradation will not trickle.Wherein filler typically uses inorganic filler, can be aluminium hydroxide, calcium oxide, talcum powder, lightweight carbonic acid
Calcium, glass microsphere etc.；The calcium oxide filler that the present embodiment uses.Wherein reinforcing fiber can be that glass fibre or resin are fine
Other inorganic fibers beyond dimension or glass fibre；The glass fibre that the present embodiment uses.
(3) accelerator, foaming agent and curing agent are added, after being kneaded 3~5min, terminates batch mixing, and is drawn off, is obtained
Automobile using low bulk structural reinforcement material for injection structure reinforcement.Wherein accelerator can be double hydrazine, hydrazides class, miaows
One or more in azole or DICY compound systems, it is ensured that material can be consolidated in the stability of low temperature and in suitable temperature
Change；The present embodiment is using double hydrazines and DICY compound accelerants.Wherein curing agent includes fatty amine, aliphatic cyclic amine, aromatic amine, polyamides
Amine, acid anhydrides, resinae, tertiary amine etc.；The present embodiment uses tertiary amine curing agent.Foaming agent can be physical blowing agent or chemistry hair
It infusion, need to meet in automobile production baking process, can foam and meet expansion ratio；The present embodiment uses chemical blowing
Agent.
The present embodiment also provides a kind of be molded after being granulated by above-mentioned automobile using low bulk structural reinforcement material and knot is made
Structure reinforcement.
Embodiment 5
The present embodiment provides a kind of automobile using low bulk structural reinforcement material, mainly prepared by following raw material and
Into：58.8 parts of epoxy resin, 6.0 parts of toughener, 3.0 parts of reinforcing agent, 3.0 parts of thixotropic agent, 12.0 parts of filler, 0.2 part of coloring agent,
2.0 parts of reinforcing fiber, 2.0 parts of accelerator, 6.0 parts of curing agent, 2.0 parts of foaming agent.
Preparation process：(1) epoxy resin added in banbury, and toughener, reinforcing agent, mixing temperature is set as 85 DEG C, banburying
15min is to improving uniformity of melt state.Its epoxy resin can be cycloaliphatic epoxy resin, one kind in bisphenol A type epoxy resin
Or two kinds of blendings, the epoxy resin used in the present embodiment belong to bisphenol A-type, transparency is high, narrow molecular weight distribution, epoxide equivalent
730~790g/Eq, 90~94 DEG C of softening point.Wherein toughener is the copolymer of a kind of acrylonitrile and butadiene, can effectively be changed
The fragility of kind epoxy resin.Wherein reinforcing agent is the addition compound product of a kind of solid-state bis-phenol A glycidyl ether and liquid rubber, can be with
Impact strength, peel strength and tensile shear strength and lower temperature resistance are improved, can also impart to epoxy resin toughness and softness
Degree.
(2) by thixotropic agent, inorganic filler, coloring agent, reinforcing fiber added in banbury, banburying 20min, uniform to batch mixing.
Wherein thixotropic agent is aerosil, thinning by shear action, material when processing；After operation terminates, then again
Retrogradation will not trickle.Wherein filler typically uses inorganic filler, can be aluminium hydroxide, calcium oxide, talcum powder, lightweight carbonic acid
Calcium, glass microsphere etc.；The filling aluminium hydrate that the present embodiment uses.Wherein reinforcing fiber can be that glass fibre or resin are fine
Other inorganic fibers beyond dimension or glass fibre；The glass fibre that the present embodiment uses.
(3) accelerator, foaming agent and curing agent are added, after being kneaded 3~5min, terminates batch mixing, and is drawn off, is obtained
Automobile using low bulk structural reinforcement material for injection structure reinforcement.Wherein accelerator can be double hydrazine, hydrazides class, miaows
One or more in azole or DICY compound systems, it is ensured that material can be consolidated in the stability of low temperature and in suitable temperature
Change；The present embodiment is using double hydrazine accelerator.Wherein curing agent includes fatty amine, aliphatic cyclic amine, aromatic amine, polyamide, acid anhydrides, tree
Lipid, tertiary amine etc.；The present embodiment is blended using aliphatic cyclic amine and aromatic amine.Foaming agent can be physical blowing agent or chemical blowing
It agent, need to meet in automobile production baking process, can foam and meet expansion ratio；The present embodiment uses physical blowing agent.
The present embodiment also provides a kind of be molded after being granulated by above-mentioned automobile using low bulk structural reinforcement material and knot is made
Structure reinforcement.
Embodiment 6
The present embodiment provides a kind of automobile using low bulk structural reinforcement material, mainly prepared by following raw material and
Into：53.8 parts of epoxy resin, 5.0 parts of toughener, 4.0 parts of reinforcing agent, 2.0 parts of thixotropic agent, 15.0 parts of filler, 0.2 part of coloring agent,
4.0 parts of reinforcing fiber, 3.0 parts of accelerator, 7.0 parts of curing agent, 3.0 parts of foaming agent, maleic anhydride modified SEBS3.0 parts.
Preparation process：(1) epoxy resin, toughener, reinforcing agent, maleic anhydride modified SEBS, banburying are added in banbury
Temperature is set as 85 DEG C, banburying 15min to improving uniformity of melt state.Its epoxy resin can be cycloaliphatic epoxy resin, bisphenol-A
One or both of type epoxy resin is blended, and the epoxy resin used in the present embodiment belongs to bisphenol A-type, and transparency is high, molecule
Measure narrowly distributing, 730~790g/Eq of epoxide equivalent, 90~94 DEG C of softening point.Wherein toughener is a kind of acrylonitrile and butadiene
Copolymer, the fragility of epoxy resin can be effectively improved.Wherein reinforcing agent is that dimeric dibasic acid is total to glycidyl ether type epoxy resin
Polymers.
(2) by thixotropic agent, inorganic filler, coloring agent, reinforcing fiber added in banbury, banburying 20min, uniform to batch mixing.
Wherein thixotropic agent is aerosil, thinning by shear action, material when processing；After operation terminates, then again
Retrogradation will not trickle.Wherein filler typically uses inorganic filler, can be aluminium hydroxide, calcium oxide, talcum powder, lightweight carbonic acid
Calcium, glass microsphere etc.；The hollow glass micro-ball filler that the present embodiment uses.Wherein reinforcing fiber can be glass fibre or tree
Other inorganic fibers beyond fat fiber or glass fibre；The resin fibre that the present embodiment uses.
(3) accelerator, foaming agent and curing agent are added, after being kneaded 3~5min, terminates batch mixing, and is drawn off, is obtained
Automobile using low bulk structural reinforcement material for injection structure reinforcement.Wherein accelerator can be double hydrazine, hydrazides class, miaows
One or more in azole or DICY compound systems, it is ensured that material can be consolidated in the stability of low temperature and in suitable temperature
Change；The present embodiment uses hydrazides class and imidazoles mixed accelerators.Wherein curing agent includes fatty amine, aliphatic cyclic amine, aromatic amine, poly-
Acid amides, acid anhydrides, resinae, tertiary amine etc.；The present embodiment uses fatty amine curing agent.Foaming agent can be physical blowing agent or change
Foaming agent is learned, need to be met in automobile production baking process, can foam and meet expansion ratio；The present embodiment is sent out using physics
Infusion.
The present embodiment also provides a kind of be molded after being granulated by above-mentioned automobile using low bulk structural reinforcement material and knot is made
Structure reinforcement.
Comparative example 1
The present embodiment provides a kind of automobile using low bulk structural reinforcement material, mainly prepared by following raw material and
Into：65.8 parts of epoxy resin, 6.0 parts of toughener, 4.5 parts of thixotropic agent, 14.0 parts of filler, 0.6 part of coloring agent, reinforcing fiber 2.0
Part, 2.0 parts of accelerator, 3.0 parts of curing agent, 2.2 parts of foaming agent.
Preparation process：(1) epoxy resin, toughener are added in banbury, and mixing temperature is set as 85 DEG C, and banburying 15min is extremely
Improving uniformity of melt state.Epoxy resin used in the present embodiment is cycloaliphatic epoxy resin, and toughener is nitrile rubber.
(2) by thixotropic agent, inorganic filler, coloring agent, reinforcing fiber added in banbury, banburying 20min, uniform to batch mixing.
Thixotropic agent is aerosil, the hollow glass micro-ball filler that filler uses, the polyester fiber that reinforcing fiber uses.
(3) accelerator, foaming agent and curing agent are added, after being kneaded 3~5min, terminates batch mixing, and is drawn off, is obtained
Automobile using structural reinforcement material for injection structure reinforcement.Accelerator uses imidazole adducts, and curing agent uses aliphatic cyclic amine
It is blended with aromatic amine, foaming agent uses physical blowing agent.
This comparative example also provides a kind of be molded after being granulated by above-mentioned automobile using structural reinforcement material and structure enhancing is made
Part.
Comparative example 2
The present embodiment provides a kind of automobile using low bulk structural reinforcement material, mainly prepared by following raw material and
Into：53.8 parts of epoxy resin, 5.0 parts of toughener, 2.0 parts of thixotropic agent, 15.0 parts of filler, 0.2 part of coloring agent, reinforcing fiber 4.0
Part, 3.0 parts of accelerator, 7.0 parts of curing agent, 3.0 parts of foaming agent, maleic anhydride modified SEBS3.0 parts.
Preparation process：(1) epoxy resin added in banbury, and toughener, maleic anhydride modified SEBS, mixing temperature sets
It is set to 85 DEG C, banburying 15min to improving uniformity of melt state.Epoxy resin used in this comparative example belongs to bisphenol A-type, epoxide equivalent
730~790g/Eq, 90~94 DEG C of softening point.Toughener is the copolymer of a kind of acrylonitrile and butadiene, can be effectively improved ring
The fragility of oxygen tree fat.
(2) by thixotropic agent, inorganic filler, coloring agent, reinforcing fiber added in banbury, banburying 20min, uniform to batch mixing.
In this comparative example, thixotropic agent is aerosil, the hollow glass micro-ball filler that filler uses, the tree that reinforcing fiber uses
Fat fiber.
(3) accelerator, foaming agent and curing agent are added, after being kneaded 3~5min, terminates batch mixing, and is drawn off, is obtained
Automobile using structural reinforcement material for injection structure reinforcement.In this comparative example, accelerator is mixed using hydrazides class and imidazoles
Accelerator is closed, curing agent uses fatty amine curing agent, and foaming agent uses physical blowing agent.
This comparative example also provides a kind of be molded after being granulated by above-mentioned automobile using structural reinforcement material and structure enhancing is made
Part.
Structural reinforcement obtained by above-described embodiment 1-6 and comparative example 1-2 toasts 20min in 165 DEG C of baking oven, with
Carry out testing partial performances；Test result and condition are as shown in table 1.
The embodiment 1-6 of table 1 and comparative example 1-2 performance tests
From table 1 it follows that physical blowing agent used herein forms closing for densification after the baking of coating baking line
Hole vesicle, to intensity effect very little, density can reach 0.5g/cm after foaming3Left and right, and with metal plate caused by adhesive strength can
Reach 25MPa, can effectively reduce the quality of vehicle body, the intensity requirement of vehicle body steel plate can also be reduced, so as to reduce cost.
The structural reinforcement is while bus body strength is strengthened with rigidity, it is possibility to have the vibration of the reduction vehicle body of effect, plays certain
Noise Reduction.Compared to other materials, the structural reinforcement material of the light firm has definitely to the enhancing effect of body upright post, side bar
Advantage.
After comparative example 1 and embodiment 5 are as can be seen that add maleic anhydride modified SEBS, the tearing strength of material is bright
Aobvious increase.Comparative example 2, embodiment 6, comparative example 2 are as can be seen that select solid-state bis-phenol A glycidyl ether and liquid rubber
Addition compound product as reinforcing agent, than being used as reinforcing agent from dimeric dibasic acid and glycidyl ether type epoxy resin copolymer, shear
Intensity, T-shaped peel strength and tearing strength have different degrees of increase, have a greater degree of increasing than not adding reinforcing agent
Add.Each embodiment and comparative example 1 are contrasted as can be seen that the application each component and content have different journeys to product combination property
The influence of degree, non-single factors control, and certain synergy between each component be present.
Above description is only the preferred embodiment of the application and the explanation to institute's application technology principle.People in the art
Member should be appreciated that invention scope involved in the application, however it is not limited to the technology that the particular combination of above-mentioned technical characteristic forms
Scheme, while should also cover in the case where not departing from the inventive concept, carried out by above-mentioned technical characteristic or its equivalent feature
The other technical schemes for being combined and being formed.Such as features described above has similar work(with (but not limited to) disclosed herein
The technical scheme that the technical characteristic of energy is replaced mutually and formed.
Claims (10)
1. a kind of automobile using low bulk structural reinforcement material, it is characterised in that be mainly prepared by following raw material：
2. automobile using low bulk structural reinforcement material according to claim 1, it is characterised in that the raw material also includes 2-
The SEBS that 5 parts by weight maleic anhydride are modified.
3. automobile using low bulk structural reinforcement material according to claim 1, it is characterised in that the reinforcing agent is solid-state
The addition compound product of bis-phenol A glycidyl ether and liquid rubber.
4. automobile using low bulk structural reinforcement material according to claim 1, it is characterised in that the epoxy resin is fat
One or both of ring race epoxy resin, bisphenol A type epoxy resin are blended.
5. automobile using low bulk structural reinforcement material according to claim 4, it is characterised in that the epoxy resin is double
Phenol A type epoxy resin, 730~790g/Eq of epoxide equivalent, 90~94 DEG C of softening point.
6. automobile using low bulk structural reinforcement material according to claim 1, it is characterised in that the accelerator is double hydrazines
One or more of mixing in class, hydrazides class, imidazoles or DICY compound systems.
7. automobile using low bulk structural reinforcement material according to claim 1, it is characterised in that the toughener is propylene
The copolymer of nitrile and butadiene.
A kind of 8. structure enhancing that automobile using low bulk structural reinforcement material as described in claim any one of 1-7 is process
Part.
9. a kind of preparation method of automobile using low bulk structural reinforcement material as described in claim any one of 1-8, its feature
It is, comprises the following steps：
(1) epoxy resin is added in banbury, toughener, reinforcing agent, mixing temperature is set as 85 DEG C, and banburying 15min is to uniform
Melt state；
(2) by thixotropic agent, inorganic filler, coloring agent, reinforcing fiber added in banbury, banburying 20min, uniform to batch mixing；
(3) accelerator, foaming agent and curing agent are added, after being kneaded 3~5min, terminates batch mixing, and is drawn off, is used for
The automobile using low bulk structural reinforcement material of injection structure reinforcement.
10. the preparation method of automobile using low bulk structural reinforcement material according to claim 9, it is characterised in that step
(1) also need to add maleic anhydride modified SEBS in banbury.
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| CN109435197A (en) * | 2018-10-30 | 2019-03-08 | 海安亚鼎机电制造有限公司 | The manufacturing process of staircase component |
| CN110746920A (en) * | 2019-11-20 | 2020-02-04 | 保光(天津)汽车零部件有限公司 | Damping type reinforcing rubber for automobile, preparation method thereof and damping type reinforcing rubber sheet |
| CN114656707A (en) * | 2022-03-01 | 2022-06-24 | 东莞市鹏园新材料有限公司 | Low-thermal conductivity IXPE foam and preparation method thereof |
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| CN103087663A (en) * | 2011-10-31 | 2013-05-08 | 比亚迪股份有限公司 | Reinforcing film matrix composition and its preparation method, reinforcing film and steel plate composite material |
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| CN105504682A (en) * | 2015-12-18 | 2016-04-20 | 优链新材料科技（上海）有限公司 | Foam composition with epoxy group structure and preparation method and application thereof |
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| CN103087663A (en) * | 2011-10-31 | 2013-05-08 | 比亚迪股份有限公司 | Reinforcing film matrix composition and its preparation method, reinforcing film and steel plate composite material |
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| CN109435197A (en) * | 2018-10-30 | 2019-03-08 | 海安亚鼎机电制造有限公司 | The manufacturing process of staircase component |
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| CN107674384B (en) | 2019-08-09 |
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