CN107964152A - One kind foaming snap-gauge and preparation method thereof - Google Patents
One kind foaming snap-gauge and preparation method thereof Download PDFInfo
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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
- C08J9/12—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 by a physical blowing agent
- C08J9/14—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 by a physical blowing agent organic
- C08J9/141—Hydrocarbons
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- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0014—Use of organic additives
- C08J9/0023—Use of organic additives containing oxygen
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- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0014—Use of organic additives
- C08J9/0028—Use of organic additives containing nitrogen
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0066—Use of inorganic compounding ingredients
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0066—Use of inorganic compounding ingredients
- C08J9/0071—Nanosized fillers, i.e. having at least one dimension below 100 nanometers
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0085—Use of fibrous compounding ingredients
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0095—Mixtures of at least two compounding ingredients belonging to different one-dot groups
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/14—Saturated hydrocarbons, e.g. butane; Unspecified hydrocarbons
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/04—Homopolymers or copolymers of ethene
- C08J2323/06—Polyethene
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Abstract
The present invention relates to snap-gauge technical field, and in particular to one kind foaming snap-gauge and preparation method thereof, this kind foaming snap-gauge include the raw material of following parts by weight：100 parts of low density polyethylene (LDPE), 0.5 1.5 parts of butane, 0.5 1.5 parts of talcum powder, 12 parts of glycerin monostearate.Present invention foaming snap-gauge replaces wooden snap-gauge, and can freely come in and go out customs, and the limitation of stringent formality is needed when overcoming wooden snap-gauge discrepancy customs；The present invention solves the problems, such as the wasting of resources to mould Dai Mu, with modeling for paper at the same time；Present invention foaming snap-gauge has the advantages that light, heat-insulated, sound insulation, buffering, specific strength are high.Present invention foaming snap-gauge anti-corrosion, insect prevention, moisture-proof, mould proof, material are merrily and lightheartedly conducted oneself with dignity low；Can the long-time service in the environment of 70 DEG C 130 DEG C, and indeformable, high mechanical properties；Bearing capacity is strong, is easy to put carrying in transportational process, and when transport requires higher article, friction breakage will not occur, can protect transport article well.
Description
Technical field
The present invention relates to snap-gauge technical field, and in particular to one kind foaming snap-gauge and preparation method thereof.
Background technology
Snap-gauge is also pallet, is used some by that can carry easy to cargo handling, transport, keeping and dispatching etc.
The handling backing plate that the load surface and fork truck socket of number of articles are formed.The purposes scope of snap-gauge is wider, is chiefly used in food, drink
Material, beer, medicine, weaves, automobile making, electronic apparatus, hardware machinery, logistics center, shelf on turnover cargo, cargo, side
Just cargo handling.
Since snap-gauge is the important supporting body of cargo, the high load-bearing capacity of comparison is not only required, while also require it
The lighter in weight of itself, to advantageously reduce cost of transportation.
Traditional snap-gauge has metal snap-gauge, wooden snap-gauge and paper templet etc..Metal snap-gauge, since it is heavy, higher price,
From the point of view of cost, it is unfavorable for promoting and applying.Wooden snap-gauge causes the price of wooden snap-gauge increasingly due to timber shortage
Height, from the angle for reducing cost He meeting environmental protection requirement, wooden snap-gauge is also unfavorable for promoting and applying, and wooden snap-gauge exists
Stringent formality is needed during discrepancy customs, further limit its application；Although paper templet is excellent with environmental protection, lighter weight etc.
Point, but there is also bad mechanical property, load-bearing capacity is small and fragile the shortcomings of, easily cause huge damage to cargo transport
Lose.There is plastics snap-gauge in development with science and technology, but there are high expensive, own wt still to lay particular stress on for existing plastics snap-gauge
The problems such as.
The content of the invention
The purpose of the present invention is for deficiency of the prior art, there is provided one kind foaming snap-gauge, it is meeting load-bearing capacity
Requirement under, also have the advantages that cost is low, own wt is lighter.
Another goal of the invention of the present invention is to provide a kind of preparation method for the snap-gauge that foams, its simple process, cost is low, holds
Easily realize industrialization.
The purpose of the present invention is achieved through the following technical solutions：One kind foaming snap-gauge, includes the raw material of following parts by weight：
100 parts of low density polyethylene (LDPE)
0.5-1.5 parts of butane
0.5-1.5 parts of talcum powder
1-2 parts of glycerin monostearate.
Preferably, the raw material of following parts by weight is further included：
0.01-0.1 parts of erucyl amide
0.05-0.2 parts of silica.
Increase both the above raw material, effect of the invention is further lifted.
It is another preferable, further include the raw material of following parts by weight：
1-3 parts of glass fibre
0.1-0.5 parts of nano-titanium dioxide.
Continue to increase both the above raw material, effect of the invention is further lifted.
The silica of the present invention is native silicon dioxide, is cooperated with the nano silicon dioxide that the present invention uses, can
To prevent agglomeration.
The melt flow rate (MFR) (190 DEG C/2.16kg) of the low density polyethylene (LDPE) is 0.85-0.95g/10min.
The density of the low density polyethylene (LDPE) is 0.92-0.93g/cm3.
The horizontal maximum elongation rate of the low density polyethylene (LDPE) is 2-3 times of longitudinal maximum elongation rate, within this range, when
When glass fibre is used cooperatively so that high mechanical properties of the invention, bearing capacity are strong.
A kind of preparation method for the snap-gauge that foams, comprises the following steps：
（1）Raw material are subjected to extrusion foaming；
（2）It is sheet material by the material forming after foaming；
（3）Cut, several layers of foam sheet are subjected to hot pressure, obtain the loading end and support feet of foaming snap-gauge；
（4）By four support feet hot pressures in a loading end, foaming snap-gauge is obtained.
Preferably, step（3）And step（4）The temperature of hot pressure is 175-185 degrees Celsius, and pressure is 1.2 to 2.2 standards
Atmospheric pressure.
Preferably, step（3）The thickness for causing loading end during hot pressure is 45-55mm, and the thickness of support feet is 90-110mm.
Preferably, when containing erucyl amide, silica in raw material, first by low density polyethylene (LDPE), erucyl amide, dioxy
SiClx is blended, and carries out extrusion foaming with other materials again after obtaining blending pellet so that the abscess of foaming is more stable.
Beneficial effects of the present invention：The selected low density polyethylene (LDPE) of the present invention, butane, talcum powder, glycerin monostearate are raw material,
Obtained foaming snap-gauge expansion ratio is high, and uniform in foaming, cell stabilization, does not substantially bounce back after cooling, have it is light, heat-insulated,
The advantages that sound insulation, buffering, high specific strength.Present invention foaming snap-gauge replaces wooden snap-gauge, and can freely come in and go out customs, overcome wooden snap-gauge
The limitation of stringent formality is needed during discrepancy customs；The present invention solves asking for the wasting of resources to mould Dai Mu, with modeling for paper at the same time
Topic.Present invention foaming snap-gauge antiseptic insect-repelling moistureproof and mildewproof, material are merrily and lightheartedly conducted oneself with dignity low；Can be long-term in the environment of -70 DEG C -130 DEG C
Use, and indeformable, high mechanical properties；Bearing capacity is strong, is easy to put carrying in transportational process, and higher in transport requirement
During article, friction breakage will not occur, transport article can be protected well.
Embodiment
The invention will be further described with the following Examples.
Embodiment 1
One kind foaming snap-gauge, is made of the raw material of following parts by weight：
100 parts of low density polyethylene (LDPE)
0.5 part of butane
0.5 part of talcum powder
1 part of glycerin monostearate.
The melt flow rate (MFR) (190 DEG C/2.16kg) of the low density polyethylene (LDPE) is 0.85g/10min.
The density of the low density polyethylene (LDPE) is 0.92g/cm3.
The horizontal maximum elongation rate of the low density polyethylene (LDPE) is 2 times of longitudinal maximum elongation rate.
A kind of preparation method for the snap-gauge that foams, comprises the following steps：
（1）Raw material are subjected to extrusion foaming；
（2）It is sheet material by the material forming after foaming；
（3）Cut, several layers of foam sheet are subjected to hot pressure, obtain the loading end and support feet of foaming snap-gauge；
（4）By four support feet hot pressures in a loading end, foaming snap-gauge is obtained.
Step（3）And step（4）The temperature of hot pressure is 175 degrees Celsius, and pressure is 1.2 standard atmospheric pressures.
Step（3）The thickness for causing loading end during hot pressure is 45mm, and the thickness of support feet is 90mm.
Embodiment 2
One kind foaming snap-gauge, is made of the raw material of following parts by weight：
100 parts of low density polyethylene (LDPE)
1 part of butane
1 part of talcum powder
1 part of glycerin monostearate
0.05 part of erucyl amide
0.1 part of silica.
The melt flow rate (MFR) (190 DEG C/2.16kg) of the low density polyethylene (LDPE) is 0.9g/10min.
The density of the low density polyethylene (LDPE) is 0.925g/cm3.
The horizontal maximum elongation rate of the low density polyethylene (LDPE) is 2 times of longitudinal maximum elongation rate.
A kind of preparation method for the snap-gauge that foams, comprises the following steps：
（1）First low density polyethylene (LDPE), erucyl amide, silica are blended, obtain blending pellet, then will blending pellet,
Talcum powder, glycerin monostearate carry out extrusion foaming under butane effect again；
（2）It is sheet material by the material forming after foaming；
（3）Cut, several layers of foam sheet are subjected to hot pressure, obtain the loading end and support feet of foaming snap-gauge；
（4）By four support feet hot pressures in a loading end, foaming snap-gauge is obtained.
Step（3）And step（4）The temperature of hot pressure is 180 degrees Celsius, and pressure is 1.8 standard atmospheric pressures.
Step（3）The thickness for causing loading end during hot pressure is 50mm, and the thickness of support feet is 100mm.
Embodiment 3
One kind foaming snap-gauge, is made of the raw material of following parts by weight：
100 parts of low density polyethylene (LDPE)
1.2 parts of butane
1.2 parts of talcum powder
1.5 parts of glycerin monostearate
0.08 part of erucyl amide
0.15 part of silica.
The melt flow rate (MFR) (190 DEG C/2.16kg) of the low density polyethylene (LDPE) is 0.91g/10min.
The density of the low density polyethylene (LDPE) is 0.93g/cm3.
The horizontal maximum elongation rate of the low density polyethylene (LDPE) is 3 times of longitudinal maximum elongation rate.
A kind of preparation method for the snap-gauge that foams, comprises the following steps：
（1）First low density polyethylene (LDPE), erucyl amide, silica are blended, obtain blending pellet, then will blending pellet,
Talcum powder, glycerin monostearate carry out extrusion foaming under butane effect；
（2）It is sheet material by the material forming after foaming；
（3）Cut, several layers of foam sheet are subjected to hot pressure, obtain the loading end and support feet of foaming snap-gauge；
（4）By four support feet hot pressures in a loading end, foaming snap-gauge is obtained.
Step（3）And step（4）The temperature of hot pressure is 182 degrees Celsius, and pressure is 2.0 standard atmospheric pressures.
Step（3）The thickness for causing loading end during hot pressure is 52mm, and the thickness of support feet is 102mm.
Embodiment 4
One kind foaming snap-gauge, is made of the raw material of following parts by weight：
100 parts of low density polyethylene (LDPE)
1.5 parts of butane
1.5 parts of talcum powder
2 parts of glycerin monostearate
0.1 part of erucyl amide
0.2 part of silica
3 parts of glass fibre
0.5 part of nano-titanium dioxide.
The melt flow rate (MFR) (190 DEG C/2.16kg) of the low density polyethylene (LDPE) is 0.91g/10min.
The density of the low density polyethylene (LDPE) is 0.93g/cm3.
The horizontal maximum elongation rate of the low density polyethylene (LDPE) is 3 times of longitudinal maximum elongation rate.
A kind of preparation method for the snap-gauge that foams, comprises the following steps：
（1）First low density polyethylene (LDPE), erucyl amide, silica are blended, obtain blending pellet, then will blending pellet,
Talcum powder, glycerin monostearate, nano-titanium dioxide, glass fibre carry out extrusion foaming under butane effect；
（2）It is sheet material by the material forming after foaming；
（3）Cut, several layers of foam sheet are subjected to hot pressure, obtain the loading end and support feet of foaming snap-gauge；
（4）By four support feet hot pressures in a loading end, foaming snap-gauge is obtained.
Step（3）And step（4）The temperature of hot pressure is 185 degrees Celsius, and pressure is 2.1 standard atmospheric pressures.
Step（3）The thickness for causing loading end during hot pressure is 55mm, and the thickness of support feet is 110mm.
Embodiment 5
One kind foaming snap-gauge, is made of the raw material of following parts by weight：
100 parts of low density polyethylene (LDPE)
1 part of butane
1 part of talcum powder
2 parts of glycerin monostearate
0.05 part of erucyl amide
0.09 part of silica
2 parts of glass fibre
0.3 part of nano-titanium dioxide.
The melt flow rate (MFR) (190 DEG C/2.16kg) of the low density polyethylene (LDPE) is 0.95g/10min.
The density of the low density polyethylene (LDPE) is 0.92g/cm3.
The horizontal maximum elongation rate of the low density polyethylene (LDPE) is 2 times of longitudinal maximum elongation rate.
A kind of preparation method for the snap-gauge that foams, comprises the following steps：
（1）First low density polyethylene (LDPE), erucyl amide, silica are blended, obtain blending pellet, then will blending pellet,
Talcum powder, glycerin monostearate, nano-titanium dioxide, glass fibre carry out extrusion foaming under butane effect；
（2）It is sheet material by the material forming after foaming；
（3）Cut, several layers of foam sheet are subjected to hot pressure, obtain the loading end and support feet of foaming snap-gauge；
（4）By four support feet hot pressures in a loading end, foaming snap-gauge is obtained.
Step（3）And step（4）The temperature of hot pressure is 185 degrees Celsius, and pressure is 1.2 standard atmospheric pressures.
Step（3）The thickness for causing loading end during hot pressure is 50mm, and the thickness of support feet is 110mm.
Embodiment 6
One kind foaming snap-gauge, is made of the raw material of following parts by weight：
100 parts of low density polyethylene (LDPE)
1.5 parts of butane
0.5 part of talcum powder
2 parts of glycerin monostearate
0.1 part of erucyl amide
0.05 part of silica
3 parts of glass fibre
0.1 part of nano-titanium dioxide
Isopropyl three（Dioctylphyrophosphoric acid acyloxy）0.1 part of titanate esters
1.5 parts of attapulgite.
The melt flow rate (MFR) (190 DEG C/2.16kg) of the low density polyethylene (LDPE) is 0.92g/10min.
The density of the low density polyethylene (LDPE) is 0.925g/cm3.
The horizontal maximum elongation rate of the low density polyethylene (LDPE) is 3 times of longitudinal maximum elongation rate.
A kind of preparation method for the snap-gauge that foams, comprises the following steps：
（1）First low density polyethylene (LDPE), erucyl amide, silica are blended, obtain the first blending pellet, then first is total to
Mixed pellet, talcum powder, glycerin monostearate, nano-titanium dioxide, isopropyl three（Dioctylphyrophosphoric acid acyloxy）Titanate esters,
Attapulgite is blended, and obtains the second mixed material, is finally squeezed the second mixed material and glass fibre under butane effect
Go out foaming；
（2）It is sheet material by the material forming after foaming；
（3）Cut, several layers of foam sheet are subjected to hot pressure, obtain the loading end and support feet of foaming snap-gauge；
（4）By four support feet hot pressures in a loading end, foaming snap-gauge is obtained.
Step（3）And step（4）The temperature of hot pressure is 185 degrees Celsius, and pressure is 1.2 standard atmospheric pressures.
Step（3）The thickness for causing loading end during hot pressure is 50mm, and the thickness of support feet is 100mm.
Embodiment 7
One kind foaming snap-gauge, is made of the raw material of following parts by weight：
100 parts of metallocene low density polyethylene (LDPE)
1 part of butane
1 part of talcum powder
1 part of glycerin monostearate.
A kind of preparation method for the snap-gauge that foams, comprises the following steps：
（1）Raw material are subjected to extrusion foaming；
（2）It is sheet material by the material forming after foaming；
（3）Cut, several layers of foam sheet are subjected to hot pressure, obtain the loading end and support feet of foaming snap-gauge；
（4）By four support feet hot pressures in a loading end, foaming snap-gauge is obtained.
Step（3）And step（4）The temperature of hot pressure is 175 degrees Celsius, and pressure is 1.2 standard atmospheric pressures.
Step（3）The thickness for causing loading end during hot pressure is 45mm, and the thickness of support feet is 90mm.
Embodiment 8
One kind foaming snap-gauge, is made of the raw material of following parts by weight：
100 parts of low density polyethylene (LDPE)
1 part of butane
1 part of talcum powder
2 parts of glycerin monostearate
0.05 part of erucyl amide
0.09 part of silica
2 parts of glass fibre
0.3 part of nano-titanium dioxide.
The low density polyethylene (LDPE) is metallocene low density polyethylene (LDPE), Li Jing≤0.2mm.
A kind of preparation method for the snap-gauge that foams, comprises the following steps：
（1）First metallocene low density polyethylene (LDPE), erucyl amide, silica are blended, obtain blending pellet, then will blending
Pellet, talcum powder, glycerin monostearate, nano-titanium dioxide, glass fibre carry out extrusion foaming under butane effect；
（2）It is sheet material by the material forming after foaming；
（3）Cut, several layers of foam sheet are subjected to hot pressure, obtain the loading end and support feet of foaming snap-gauge；
（4）By four support feet hot pressures in a loading end, foaming snap-gauge is obtained.
Step（3）And step（4）The temperature of hot pressure is 175 degrees Celsius, and pressure is 2 standard atmospheric pressures.
Step（3）The thickness for causing loading end during hot pressure is 55mm, and the thickness of support feet is 100mm.
Embodiment 1-8 is subjected to aptitude test, performance is as shown in the table：
。
It is not only light that upper table can be seen that the foaming snap-gauge for preparing of the present invention, its mechanical property excellent performance.
Finally it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than the present invention is protected
The limitation of scope is protected, although being explained with reference to preferred embodiment to the present invention, those of ordinary skill in the art should
Work as understanding, can be to technical scheme technical scheme is modified or replaced equivalently, without departing from the reality of technical solution of the present invention
Matter and scope.
Claims (10)
1. one kind foaming snap-gauge, it is characterised in that：Include the raw material of following parts by weight：
100 parts of low density polyethylene (LDPE)
0.5-1.5 parts of butane
0.5-1.5 parts of talcum powder
1-2 parts of glycerin monostearate.
A kind of 2. foaming snap-gauge according to claim 1, it is characterised in that：Further include the raw material of following parts by weight：
0.01-0.1 parts of erucyl amide
0.05-0.2 parts of silica.
A kind of 3. foaming snap-gauge according to claim 2, it is characterised in that：Further include the raw material of following parts by weight：
1-3 parts of glass fibre
0.1-0.5 parts of nano-titanium dioxide.
4. according to a kind of foaming snap-gauge of claim 1-3 any one of them, it is characterised in that：The low density polyethylene (LDPE) melts
Body flow rate (190 DEG C/2.16kg) is 0.85-0.95g/10min, and the density of the low density polyethylene (LDPE) is 0.92-
0.93g/cm³。
5. according to a kind of foaming snap-gauge of claim 1-3 any one of them, it is characterised in that：The low density polyethylene (LDPE) is cyclopentadienyl
Metal low density polyethylene (LDPE), Li Jing≤0.2mm.
6. according to a kind of foaming snap-gauge of claim 1-3 any one of them, it is characterised in that：The horizontal stroke of the low density polyethylene (LDPE)
It it is 2-3 times of longitudinal maximum elongation rate to maximum elongation rate.
A kind of 7. preparation method for the snap-gauge that foams of claim 1-3 any one of them, it is characterised in that：Comprise the following steps：
（1）Raw material are subjected to extrusion foaming；
（2）It is sheet material by the material forming after foaming；
（3）Cut, several layers of foam sheet are subjected to hot pressure, obtain the loading end and support feet of foaming snap-gauge；
（4）By four support feet hot pressures in a loading end, foaming snap-gauge is obtained.
A kind of 8. preparation method of snap-gauge that foams according to claim 7, it is characterised in that：Step（3）And step（4）Scald
The temperature of pressure is 175-185 degrees Celsius, and pressure is 1.2 to 2.2 standard atmospheric pressures.
A kind of 9. preparation method of snap-gauge that foams according to claim 7, it is characterised in that：Step（3）Cause during hot pressure
The thickness of loading end is 45-55mm, and the thickness of support feet is 90-110mm.
A kind of 10. preparation method of snap-gauge that foams according to claim 7, it is characterised in that：When containing erucic acid in raw material
When acid amides, silica, first low density polyethylene (LDPE), erucyl amide, silica are blended, obtain blending pellet after again with
Other materials carry out extrusion foaming.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201711273441.9A CN107964152A (en) | 2017-12-06 | 2017-12-06 | One kind foaming snap-gauge and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711273441.9A CN107964152A (en) | 2017-12-06 | 2017-12-06 | One kind foaming snap-gauge and preparation method thereof |
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| CN107964152A true CN107964152A (en) | 2018-04-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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