CN106009758A - Fiber reinforced plastic cargo pallet and preparation method thereof - Google Patents
Fiber reinforced plastic cargo pallet and preparation method thereof Download PDFInfo
- Publication number
- CN106009758A CN106009758A CN201610438428.3A CN201610438428A CN106009758A CN 106009758 A CN106009758 A CN 106009758A CN 201610438428 A CN201610438428 A CN 201610438428A CN 106009758 A CN106009758 A CN 106009758A
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- pallet
- fiber
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- fibre
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Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L63/00—Compositions of epoxy resins; Compositions of derivatives of epoxy resins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
- B29C70/46—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/04—Ingredients characterised by their shape and organic or inorganic ingredients
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/10—Silicon-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/14—Glass
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
- C08L75/04—Polyurethanes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/712—Containers; Packaging elements or accessories, Packages
- B29L2031/7178—Pallets
Abstract
The invention discloses a fiber reinforced plastic cargo pallet. The fiber reinforced plastic cargo pallet is mainly prepared from, by weight, 50-80 parts of fibers, 20-50 parts of plastic, 0.5-15 parts of a curing agent, 0.25-3 parts of a demolding agent and 0.125-3 parts of an accelerant. Basalt fibers or mixed fibers of the basalt fibers and glass fibers are adopted as the fibers which are novel inorganic nonmetal fibers, and the cost is low; the cargo pallet is prepared from basalt fiber reinforced plastic or basalt fiber-glass fiber mixed fiber reinforced plastic, and therefore the compressive strength, the wear resistance, the shock resistance and the rigidity of the pallet can be effectively enhanced. The invention further discloses a preparation method of the fiber reinforced plastic cargo pallet. Therefore, the fiber content can be increased to 60%-70%, the product performance is significantly improved, and the weight is small. The method has the advantages that quick molding is achieved, the preparation time is greatly shortened, the needed worker number is greatly decreased, and the cost is further reduced.
Description
Technical field
The present invention relates to a kind of plastics goods pallet, be specifically related to a kind of fiber reinforcement plastic glassware pallet and system thereof
Preparation Method.
Background technology
Goods pallet is a kind of and the matching used Logistic Unit of the logistics equipment such as fork truck, shelf.Can be used to deposit,
Load, transport goods, be one of requisite logistics equipment in Modern Materials Circulation storage.Initially goods pallet
Being substantially and be prepared from by wood leftover material, later due to pallet large usage quantity, leftover pieces timber is the most far away
Demand can not be met, then begin to use the timber that performance is good, cause the batch to forest, trees to destroy.With
The development of material science and technology, plastic pallet arises at the historic moment, and progressively substitutes wood pallets.The appearance of plastic pallet is
Adapt to environmental protection needs, use plastic pallet to replace wood composite pallet can reduce the best product to forest deterioration；It is to adapt to
The inevitable outcome of Logistics Developing, often carries heavy weight goods, it is desirable to pallet has well due to pallet
Intensity, can stand various environment simultaneously.But the plastic pallet ability to bear on market is not enough, causes pallet to become
Shape, serious wear, impact resistance are poor, are even pressed down, severed phenomenons such as splitting, easily cause safety
Accident.
Glass fibre is the Inorganic Non-metallic Materials of a kind of excellent performance, of a great variety, advantage be good insulating,
Thermostability is strong, corrosion resistance good, and mechanical strength is high, but shortcoming is that property is crisp, wears no resistance.Glass fibre is usual
As the reinforcing material in composite, electrically insulating material and heat-insulating material, can be used for national economy each
Field.
Basalt fibre, is, after basalt building stones melt at 1450 DEG C～1500 DEG C, to be leaked by platinum-rhodium alloy wire drawing
The continuous fiber of plate high speed pulling.Be similar to glass fibre, its performance between high intensity S glass fibre and
Between alkali-free E glass fibre, the color of pure natural basalt fibre is generally brown, and some is like golden.The Black Warrior
Rock fiber is a kind of emerging novel inorganic environment-friendly and green high performance fibre material, and it is by silicon dioxide, oxygen
The basalt building stones of the oxide compositions such as change aluminum, calcium oxide, ferrum oxide and titanium dioxide are after high-temperature fusion, logical
Cross bushing Defect.Basalt continuous fiber not only good stability, but also have electrical insulating property,
Anticorrosive, flame resistant, the multiple excellent properties such as high temperature resistant, wear-resistant.Additionally, the production work of basalt fibre
The garbage that skill produces is few, and environmental pollution is little, can directly proceed in ecological environment, without any after product abandonment
Harm, thus be a kind of genuine green, environment-friendly materials.China is classified as basalt fibre as China's weight
One of four big fibers (basalt fibre, carbon fiber, aramid fiber, superhigh molecular weight polyethylene fibers) of some development,
Industrialized production has been substantially carried out in China.Basalt continuous fiber is in fibre reinforced composites, friction
The many aspects such as material, shipbuilding materials, heat-barrier material, automobile industry, high temperature filtration fabric and protection field
It is widely used.
Summary of the invention
Goal of the invention: for the deficiencies in the prior art, the present invention provides a kind of fiber reinforcement plastic glassware pallet,
Have high intensity, wear-resistant, impact resistance, etc. performance improve life-span and the usage safety performance of pallet.
Technical scheme: to achieve these goals, as described herein a kind of fiber reinforcement plastic glassware pallet,
Main by made by the raw material of following weight portion: fiber 50-80 part, plastics 20-50 part, firming agent 0.5-15
Part, releasing agent 0.25-3 part, accelerator 0.125-3 part.
Further, described fiber is basalt fibre or basalt fibre and glass fibre composite fibre.
Further, described glass fibre is alkali-free glass fibre, high-strength glass fibre or high-modulus glass fiber.
Further, in described composite fibre, basalt fibre and glass fiber weight ratio are (1-3): (3-1).
Further, described plastics are thermosetting plastics or thermoplastic.
Further, described thermosetting plastics is vinylite, epoxy resin or polyurethane resin；Described heat
Thermoplastic plastic is PP plastics, PE plastics or PA plastics.
Further, described firming agent is methyl ethyl ketone peroxide, benzoic t-butyl ester peroxide, maleic acid
Acid anhydride, phthalic anhydride or m-diaminobenzene..
Further, described releasing agent is zinc stearate, machine oil, liquid paraffin or silica gel.
Further, described accelerator is cobalt naphthenate, naphthoic acid cobalt, isooctyl acid brill or diethylaniline.
The preparation method of fiber reinforcement plastic glassware pallet of the present invention, it is characterised in that include following step
Rapid:
(1) basalt fibre or composite fibre dipping thermosetting plastics are prepared as fiber-reinforced thermoset plastics pre-
Leaching material；Or basalt fibre or composite fibre are passed through fiber reinforced thermoplastics molding with thermoplastic
Machine, is prepared as fibre-reinforced thermoplastic's plastics；
(2) select fiber-reinforced thermoset plastics prepreg or select fibre-reinforced thermoplastic's plastics to carry out being cut into torr
Dish all parts；
(3) component materials cut is placed in has been preheated with design temperature 120 DEG C～the mold pressing of 170 DEG C
In mould；
(4) molding apparatus is started, under the conditions of the temperature 120 DEG C～170 DEG C set and pressure 450-550 ton,
Keep certain time 3-7min, be prepared as corresponding tray member；
(5) each for pallet parts assembly is got up, be quickly prepared from pallet.
Beneficial effect: compared with prior art, present invention have the advantage that the fiber of employing is the Black Warrior
Rock fiber or basalt fibre are novel inorganic non-metallic fibers with glass fibre composite fibre, Costco Wholesale
Low, basalt fibre or basalt fibre are that raw material prepares goods use with glass fibre composite fibre reinforced plastics
Pallet, can be effectively increased the comprcssive strength of pallet, mar proof, resistance to impact, rigidity；The preparation of the present invention
Method is compared with traditional mould pressing process, and in traditional mould pressing process raw material, fiber content is only about 20%,
The present invention uses new mould pressing process, fiber content can be made to bring up to 60-70% so that properties of product are significantly
Improve, and lighter in weight；The present invention uses mould pressing process, rapid shaping, substantially reduce preparation time and
Required number of workers, further saves cost.
Detailed description of the invention
Embodiment 1
Prescription:
Basalt fibre 50 parts, vinylite 20 parts, methyl ethyl ketone peroxide 0.5 part, zinc stearate 0.25
Part, cobalt naphthenate 0.125 part.
Preparation method:
(1) basalt fibre is prepared as fiber-reinforced thermoset plastics prepreg；
(2) fiber-reinforced thermoset plastics prepreg is selected to carry out being cut into pallet all parts；
(3) component materials cut is placed in the molding die having been preheated with design temperature 120 DEG C；
(4) start molding apparatus, under the conditions of the temperature 120 DEG C set and pressure 4500 tons, keep certain
Time 7min, is prepared as corresponding tray member；
(5) each for pallet parts assembly is got up, be quickly prepared from pallet.
Embodiment 2
Prescription:
Composite fibre 80 parts, epoxy resin 50 parts, benzoic t-butyl ester peroxide 15 parts, 3 parts of machine oil,
Naphthoic acid cobalt 3 parts；Basalt fibre 40 parts in composite fibre, alkali-free glass fibre 40 parts.
Preparation method:
(1) composite fibre is impregnated thermosetting plastics and be prepared as fiber-reinforced thermoset plastics prepreg；
(2) fiber-reinforced thermoset plastics prepreg is selected to carry out being cut into pallet all parts；
(3) component materials cut is placed in the molding die having been preheated with design temperature 170 DEG C；
(4) start molding apparatus, under the conditions of the temperature 170 DEG C set and pressure 550 tons, keep certain
Time 3min, is prepared as corresponding tray member；
(5) each for pallet parts assembly is got up, be quickly prepared from pallet.
Embodiment 3
Prescription:
Composite fibre cloth 65 parts, polyurethane resin 35 parts, maleic anhydride 7.5 parts, liquid paraffin 1.6
Part, isooctyl acid bore 1.5 parts, basalt fibre 32.5 parts, high-strength glass fibre 32.5 parts in composite fibre cloth.
Preparation method:
(1) composite fibre is impregnated thermosetting plastics and be prepared as fiber-reinforced thermoset plastics prepreg；
(2) fiber-reinforced thermoset plastics prepreg is selected to carry out being cut into pallet all parts；
(3) component materials cut is placed in the molding die having been preheated with design temperature 145 DEG C；
(4) start molding apparatus, under the conditions of the temperature 145 DEG C set and pressure 500 tons, keep certain
Time 5min, is prepared as corresponding tray member；
(5) each for pallet parts assembly is got up, be quickly prepared from pallet.
Embodiment 4
Prescription:
Composite fibre 64 parts, 35 parts of PE plastics, phthalic anhydride 7 parts, 1 part of silica gel, diethylbenzene
Amine 1 part；Basalt fibre 16 parts in composite fibre, high-modulus glass fiber 48 parts.
Preparation method:
(1) composite fibre and thermoplastic are by fiber reinforced thermoplastics forming machine, are prepared as fiber
Strengthen thermoplastic；
(2) fibre-reinforced thermoplastic's plastics are selected to carry out being cut into pallet all parts；
(3) component materials cut is placed in the molding die having been preheated with design temperature 140 DEG C；
(4) start molding apparatus, under the conditions of the temperature 140 DEG C set and pressure 500 tons, keep certain
Time 6min, is prepared as corresponding tray member；
(5) each for pallet parts assembly is got up, be quickly prepared from pallet.
Embodiment 5
Prescription:
Composite fibre 52 parts, 35 parts of PP plastics, m-diaminobenzene. 8 parts, zinc stearate 2 parts, cobalt naphthenate
2 parts.Basalt fibre 48 parts in composite fibre, high-strength glass fibre 16 parts.
Preparation method:
(1) composite fibre and thermoplastic are by fiber reinforced thermoplastics forming machine, are prepared as fiber
Strengthen thermoplastic；
(2) fibre-reinforced thermoplastic's plastics are selected to carry out being cut into pallet all parts；
(3) component materials cut is placed in the molding die having been preheated with design temperature 160 DEG C；
(4) start molding apparatus, under the conditions of the temperature 160 DEG C set and pressure 500 tons, keep certain
Time 4min, is prepared as corresponding tray member；
(5) each for pallet parts assembly is got up, be quickly prepared from pallet.
Embodiment 6
Embodiment 6 uses prescription and the preparation method of embodiment 3, and difference is composite fibre in prescription
65 parts change basalt fibre 65 parts into, and polyurethane resin 35 parts is changed to 35 parts of PA plastics.
Test example 1
The each reality of the present invention is tested according to " GB/T 1448-2005 fibre reinforced plastics compression performance experimental technique "
Execute the comprcssive strength of example pallet, rigidity；According to " GB/T15234-94 plastic pallet national standard " test originally
Invent the mar proof of each embodiment pallet, resistance to impact, the results are shown in Table 1.
Comparative example 1 is common plastics pallet in prior art；
The plastic pallet that comparative example 2 is made for glass fibre.
The properties of table 1 fiber reinforcement plastic glassware pallet
| Comprcssive strength | Mar proof | Resistance to impact | Rigidity | Fiber content | |
| Comparative example 1 | Typically | Weak | Weak | Weak | 0 |
| Comparative example 2 | Typically | Typically | Weak | Weak | 20% |
| Embodiment 1 | High | By force | By force | By force | 60-70% |
| Embodiment 2 | High | By force | By force | By force | 60-70% |
| Embodiment 3 | High | By force | By force | By force | 60-70% |
| Embodiment 4 | High | By force | By force | By force | 60-70% |
| Embodiment 5 | High | By force | By force | By force | 60-70% |
Fiber reinforcement plastic glassware pallet comprcssive strength compared with the common plastics pallet of prior art of the present invention
High, wear-resistant, impact resistance, rigidity strong various aspects performance is obviously improved；Glass fibers with comparative example 2
Vito dish phase, more crisp than overcoming glass fibre, poor impact resistance, the shortcoming such as poor rigidity；The present invention is real simultaneously
Executing the pallet low cost of example, safety and environmental protection, the preparation method of the present invention can make fiber content bring up to simultaneously
60-70%.
Claims (10)
1. a fiber reinforcement plastic glassware pallet, it is characterised in that main by made by the raw material of following weight portion: fiber 50-80 part, plastics 20-50 part, firming agent 0.5-15 part, releasing agent 0.25-3 part, accelerator 0.125-3 part.
Fiber reinforcement plastic glassware pallet the most according to claim 1, it is characterised in that described fiber is basalt fibre or basalt fibre and glass fibre composite fibre.
Fiber reinforcement plastic glassware pallet the most according to claim 2, it is characterised in that described glass fibre is alkali-free glass fibre, high-strength glass fibre or high-modulus glass fiber.
Fiber reinforcement plastic glassware pallet the most according to claim 2, it is characterised in that in described composite fibre, basalt fibre and glass fiber weight are than being (1-3): (3-1).
Fiber reinforcement plastic glassware pallet the most according to claim 1, it is characterised in that described plastics are thermosetting plastics or thermoplastic.
Fiber reinforcement plastic glassware pallet the most according to claim 5, described thermosetting plastics is vinylite, epoxy resin or polyurethane resin；Described thermoplastic is PP plastics, PE plastics or PA plastics.
Reinforced plastics goods pallet the most according to claim 1, it is characterised in that described firming agent is methyl ethyl ketone peroxide, benzoic t-butyl ester peroxide, maleic anhydride, phthalic anhydride or m-diaminobenzene..
Fiber reinforcement plastic glassware pallet the most according to claim 1, it is characterised in that described releasing agent is zinc stearate, machine oil, liquid paraffin or silica gel.
Fiber reinforcement plastic glassware pallet the most according to claim 1, it is characterised in that described accelerator is cobalt naphthenate, naphthoic acid cobalt, isooctyl acid brill or diethylaniline.
10. the preparation method of the arbitrary described fiber reinforcement plastic glassware pallet of claim 1-9, it is characterised in that comprise the following steps:
(1) basalt fibre or composite fibre are impregnated thermosetting plastics and be prepared as fiber-reinforced thermoset plastics prepreg；Or basalt fibre or composite fibre are passed through fiber reinforced thermoplastics forming machine with thermoplastic, it is prepared as fibre-reinforced thermoplastic's plastics；
(2) select fiber-reinforced thermoset plastics prepreg or select fibre-reinforced thermoplastic's plastics to carry out being cut into pallet all parts；
(3) component materials cut is placed in the molding die having been preheated with design temperature 120 DEG C～170 DEG C；
(4) start molding apparatus, under the conditions of the temperature 120 DEG C～170 DEG C set and pressure 450-550 ton, keep certain time 3-7min, be prepared as corresponding tray member；
(5) each for pallet parts assembly is got up, be quickly prepared from pallet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610438428.3A CN106009758A (en) | 2016-06-17 | 2016-06-17 | Fiber reinforced plastic cargo pallet and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610438428.3A CN106009758A (en) | 2016-06-17 | 2016-06-17 | Fiber reinforced plastic cargo pallet and preparation method thereof |
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| Publication Number | Publication Date |
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| CN106009758A true CN106009758A (en) | 2016-10-12 |
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ID=57088108
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610438428.3A Pending CN106009758A (en) | 2016-06-17 | 2016-06-17 | Fiber reinforced plastic cargo pallet and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107325405A (en) * | 2017-08-01 | 2017-11-07 | 界首市宏利塑料有限公司 | A kind of plastics spoon for baby |
| CN110452499A (en) * | 2019-09-17 | 2019-11-15 | 成都市冠宇复合材料制品有限公司 | A kind of impact-resistant glass-reinforced plastic material and preparation method thereof |
| CN110614744A (en) * | 2018-06-19 | 2019-12-27 | 旭化成株式会社 | Method for producing molded article, and mold for resin molding |
| CN112480704A (en) * | 2020-12-18 | 2021-03-12 | 株洲春华实业有限责任公司 | Manufacturing method of automobile guide arm based on thermosetting material and automobile guide arm |
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| CN104029890A (en) * | 2013-03-07 | 2014-09-10 | 辽宁辽杰科技有限公司 | High-intensity composite tray and preparation method thereof |
| WO2014146160A1 (en) * | 2013-03-22 | 2014-09-25 | Secar Technologie Gmbh | Transport pallet and method for the production thereof |
| CN105315620A (en) * | 2015-11-27 | 2016-02-10 | 四川迪弗电工科技有限公司 | Epoxy resin-enhanced laminated insulating profile and preparation method thereof |
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| CN104029890A (en) * | 2013-03-07 | 2014-09-10 | 辽宁辽杰科技有限公司 | High-intensity composite tray and preparation method thereof |
| WO2014146160A1 (en) * | 2013-03-22 | 2014-09-25 | Secar Technologie Gmbh | Transport pallet and method for the production thereof |
| CN105315620A (en) * | 2015-11-27 | 2016-02-10 | 四川迪弗电工科技有限公司 | Epoxy resin-enhanced laminated insulating profile and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107325405A (en) * | 2017-08-01 | 2017-11-07 | 界首市宏利塑料有限公司 | A kind of plastics spoon for baby |
| CN110614744A (en) * | 2018-06-19 | 2019-12-27 | 旭化成株式会社 | Method for producing molded article, and mold for resin molding |
| CN110452499A (en) * | 2019-09-17 | 2019-11-15 | 成都市冠宇复合材料制品有限公司 | A kind of impact-resistant glass-reinforced plastic material and preparation method thereof |
| CN112480704A (en) * | 2020-12-18 | 2021-03-12 | 株洲春华实业有限责任公司 | Manufacturing method of automobile guide arm based on thermosetting material and automobile guide arm |
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