CN115612226A - Formula and manufacturing method of PVC tableware - Google Patents
Formula and manufacturing method of PVC tableware Download PDFInfo
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- CN115612226A CN115612226A CN202211200285.4A CN202211200285A CN115612226A CN 115612226 A CN115612226 A CN 115612226A CN 202211200285 A CN202211200285 A CN 202211200285A CN 115612226 A CN115612226 A CN 115612226A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- 239000011347 resin Substances 0.000 claims abstract description 71
- 229920005989 resin Polymers 0.000 claims abstract description 71
- 239000004014 plasticizer Substances 0.000 claims abstract description 25
- 239000007788 liquid Substances 0.000 claims abstract description 20
- 239000002994 raw material Substances 0.000 claims abstract description 20
- 239000000203 mixture Substances 0.000 claims abstract description 19
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 16
- 239000003381 stabilizer Substances 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000007670 refining Methods 0.000 claims abstract description 6
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims abstract description 6
- 229920002554 vinyl polymer Polymers 0.000 claims abstract description 6
- 238000001816 cooling Methods 0.000 claims abstract description 5
- 238000003756 stirring Methods 0.000 claims abstract description 3
- OEIWPNWSDYFMIL-UHFFFAOYSA-N dioctyl benzene-1,4-dicarboxylate Chemical compound CCCCCCCCOC(=O)C1=CC=C(C(=O)OCCCCCCCC)C=C1 OEIWPNWSDYFMIL-UHFFFAOYSA-N 0.000 claims description 12
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 3
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 3
- 229910052791 calcium Inorganic materials 0.000 claims description 3
- 239000011575 calcium Substances 0.000 claims description 3
- 229910052725 zinc Inorganic materials 0.000 claims description 3
- 239000011701 zinc Substances 0.000 claims description 3
- 238000009472 formulation Methods 0.000 claims 4
- IHBCFWWEZXPPLG-UHFFFAOYSA-N [Ca].[Zn] Chemical group [Ca].[Zn] IHBCFWWEZXPPLG-UHFFFAOYSA-N 0.000 claims 1
- 239000004800 polyvinyl chloride Substances 0.000 description 95
- 229920000915 polyvinyl chloride Polymers 0.000 description 94
- 230000000694 effects Effects 0.000 description 11
- 239000002245 particle Substances 0.000 description 11
- 235000013305 food Nutrition 0.000 description 9
- 239000000463 material Substances 0.000 description 9
- 238000002156 mixing Methods 0.000 description 9
- 230000008901 benefit Effects 0.000 description 7
- BJAJDJDODCWPNS-UHFFFAOYSA-N dotp Chemical compound O=C1N2CCOC2=NC2=C1SC=C2 BJAJDJDODCWPNS-UHFFFAOYSA-N 0.000 description 4
- 231100000252 nontoxic Toxicity 0.000 description 4
- 230000003000 nontoxic effect Effects 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 239000004609 Impact Modifier Substances 0.000 description 3
- 230000032683 aging Effects 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 231100000956 nontoxicity Toxicity 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 230000027756 respiratory electron transport chain Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 206010053615 Thermal burn Diseases 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000009965 odorless effect Effects 0.000 description 2
- 150000002894 organic compounds Chemical class 0.000 description 2
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- OMVSWZDEEGIJJI-UHFFFAOYSA-N 2,2,4-Trimethyl-1,3-pentadienol diisobutyrate Chemical compound CC(C)C(=O)OC(C(C)C)C(C)(C)COC(=O)C(C)C OMVSWZDEEGIJJI-UHFFFAOYSA-N 0.000 description 1
- KESQFSZFUCZCEI-UHFFFAOYSA-N 2-(5-nitropyridin-2-yl)oxyethanol Chemical compound OCCOC1=CC=C([N+]([O-])=O)C=N1 KESQFSZFUCZCEI-UHFFFAOYSA-N 0.000 description 1
- 241001391944 Commicarpus scandens Species 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004606 Fillers/Extenders Substances 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- 229920001944 Plastisol Polymers 0.000 description 1
- 238000007551 Shore hardness test Methods 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000036760 body temperature Effects 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 210000003298 dental enamel Anatomy 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000004534 enameling Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000005562 fading Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 239000012760 heat stabilizer Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000004611 light stabiliser Substances 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 235000012054 meals Nutrition 0.000 description 1
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 125000004430 oxygen atom Chemical group O* 0.000 description 1
- 235000011837 pasties Nutrition 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- XNGIFLGASWRNHJ-UHFFFAOYSA-L phthalate(2-) Chemical compound [O-]C(=O)C1=CC=CC=C1C([O-])=O XNGIFLGASWRNHJ-UHFFFAOYSA-L 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000004999 plastisol Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 239000012798 spherical particle Substances 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/04—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08L27/06—Homopolymers or copolymers of vinyl chloride
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
Abstract
The invention relates to a formula of PVC tableware and a manufacturing method thereof, wherein the formula comprises the following raw materials in percentage by weight: PVC paste resin: 30-40%, PVC blend resin: 30-35%, PVC resin: 8-12%, plasticizer 11-20%, stabilizer: 1-3%, viscosity reducer: 2-6%, the sum of the percentage contents of all the components is 100%, and the method comprises the following steps: s1: pouring various raw materials according to the formula proportion into a stirrer for uniformly stirring to form liquid PVC, and toning in a vacuum environment; s2, pouring the liquid with the well-mixed color into a feeding container, and setting the dosage required by tableware manufacturing; s3: injecting the PVC liquid with the set dosage into the mold, covering and locking, and then putting the mold into a vinyl machine with the set temperature and time for refining to obtain the PVC pipe; and S4, after the set time is over, the die is pulled out from the die for water cooling, and then the cooled die cover is opened to take out the tableware.
Description
Technical Field
The invention relates to the technical field of tableware, in particular to a formula of PVC tableware and a manufacturing method thereof.
Background
Tableware, which refers to a non-edible tool directly contacting with food during eating, and utensils and appliances used for assisting food to distribute or take food, wherein the tableware comprises a set of utensils, such as metal utensils, ceramic utensils, wine sets, glassware, paper utensils, plastic utensils, various containers with different purposes (such as bowls, dishes, cups, kettles and the like), handheld utensils (such as chopsticks, knives, forks, spoons, straws, sticks and the like) and the like.
The tableware is classified into ceramic tableware, glass tableware, enamel tableware, wood tableware, copper tableware, iron tableware, aluminum tableware, alloy tableware, stainless steel tableware, titanium tableware, melamine tableware, plastic tableware and the like according to the material, a plurality of disposable tableware also appear in the market, the tableware is not good for the environment, and tableware made of degradable materials is also provided, the tableware made of different materials has different characteristics, different service performance is brought for the use of the tableware, and therefore people select different tableware according to own needs and preferences.
At present, tableware commonly used by people is ceramic tableware, glass tableware and stainless steel tableware, however, the traditional tableware has the defects that hands are easy to scald and break, and the tableware is easy to generate noise when contacting and colliding with each other in the using process, people also continuously research tableware with various excellent performances so as to enable people to feel more comfortable and convenient in the using process of the tableware and improve experience feeling, and under the background, the applicant conducts multiple experimental researches and manufactures the tableware with various excellent performances.
Disclosure of Invention
The invention aims to provide a formula and a manufacturing method of PVC tableware, which are used for achieving the technical effects that the tableware is comfortable and convenient to use, does not hurt people easily, and has a good experience effect.
The invention is realized by the following technical scheme:
the formula of the PVC tableware comprises the following raw materials in percentage by weight: PVC paste resin: 30-40%, PVC blend resin: 30-35%, PVC resin: 8-12%, plasticizer 11-20%, stabilizer: 1-3%, viscosity reducer: 2-6%, and the sum of the percentage contents of all the components is 100%.
The tableware manufactured by the formula has the advantages that the raw material components are mutually matched to form stable, healthy, environment-friendly, anti-falling, heat-insulating, stable and oil-resistant tableware, and the tableware has multiple excellent performances in the use process of the tableware, is more convenient to use, better in use experience effect and wide in application range.
In order to better implement the present invention, further, the PVC paste resin: 34.6%, PVC blend resin: 32.5%, PVC resin: 10.8%, plasticizer 15.6%, stabilizer: 2.2%, viscosity reducer: 4.3 percent.
In order to better implement the invention, further, the plasticizer is composed of the following raw materials in percentage by weight, namely dioctyl terephthalate: 2-6%, DNTXIB:8-12%, heat-resistant oil: 1 to 2 percent.
In order to better implement the invention, further, the stabilizer is calcium-zinc-free phenate.
In order to better implement the present invention, further, said PVC paste resin: 34.6%, PVC blend resin: 32.5%, PVC resin: 10.8%, dioctyl terephthalate: 4.3%, DNTXIB:10%, heat resistant oil: 1.3%, calcium and zinc without phenol: 2.2%, viscosity reducer: 4.3 percent.
A manufacturing method of PVC tableware comprises the following steps:
s1: pouring various raw materials according to the formula proportion into a stirrer for uniformly stirring to form liquid PVC, and toning in a vacuum environment;
s2, pouring the liquid with the well-mixed color into a charging container, and setting the dosage required by tableware manufacturing;
s3: injecting the PVC liquid with the set dosage into the mold, covering and locking, and then putting the mold into a vinyl machine with the set temperature and time for refining to obtain the PVC pipe;
and S4, after the set time is over, pulling the die out of the die to cool the die, and then opening the cover of the cooled die to take out the tableware.
In order to better implement the invention, the temperature set in S3 is 270-290 ℃ and the time is 230-250 seconds.
In order to better realize the invention, the toner for color mixing in the S1 is temperature-sensitive color-changing powder.
Polyvinyl chloride (PVC) paste resin is mainly applied in a pasty form as the name implies, is a unique liquid form of PVC plastics in an unprocessed state, is usually prepared by an emulsion and micro-suspension method, and is developed in the PVC paste resin industry.
The PVC blending resin is a PVC resin which replaces part of paste resin by blending when preparing PVC plastisol, not only can improve the quality of paste products, but also can reduce the production cost and improve the economic benefit, the particle structure of the PVC blending resin is compact and spherical, the appearance is smooth, the particle size distribution is narrow, the average particle size is 10-80 mu m, the K value is 57-75, the energy of absorbing plasticizer is small, and the PVC blending resin has certain affinity with plasticizer and proper molecular weight; suitable particle size and particle size distribution; suitable plasticizer absorption rate; have a lower tendency to settle out in the paste; good foaming performance; good thermal stability.
The PVC resin is a polar non-crystalline high polymer, has stronger acting force among molecules, and is a hard and brittle material; the impact modifier has low impact strength, and after the impact modifier is added, the elastomer particles of the impact modifier can reduce the total stress caused by crazing, prevent the crazing from expanding and growing by utilizing the deformation and shear band of the particles, and absorb the impact energy transmitted into the material body, thereby achieving the aim of resisting impact.
PVC paste resin, the particle diameter of the particle is 0.063-2.5 μm, the preferred model is LF-51L, the molecular formula is- - (CH 2-CHCl) n- -, n is the average degree of polymerization, CAS number is 9002-86-2, PVC blend resin, the particle diameter of the particle is 25-50 μm, the preferred model is SB-100C, PVC resin, polyvinyl chloride resin, also called general PVC resin, the commonly used models are DG-700, DG-800, DG-1300, DG-1000S and DG-1000K, the preferred model is DG1000, polyvinyl chloride homopolymer, high apparent density, excellent thermal stability, fast fluidity, fine particles, good stability and repeatability, the execution standard is GB/T5761-2006.
Dioctyl terephthalate, also known as DOTP, has a molecular formula of C24H38O4, and the preferred model is LF-30, and the dioctyl terephthalate has the conventional advantages of high efficiency as a plasticizer, environmental protection, no toxicity, long thermal stability time, good compatibility with PVC polymers, low volatility, capability of exudation, large capacity of an extender, high brightness of products and the like.
Compared with other common plasticizers, the DOTP has the outstanding advantages of heat resistance, cold resistance, difficult volatilization, extraction resistance, flexibility and good electrical insulation performance, and shows excellent durability, soap water resistance, low-temperature flexibility and the like in the manufactured tableware, and because DOTP does not contain phthalate and is not in the range of 16 phthalic acid-containing plasticizers which are limited to be used in European Union and other countries, the manufactured tableware has wider application range.
Heat resistant oil, preferably selected from the group consisting of drapx 39 (D39), CAS number: 8013-07-8, in the present invention, D39 thermal resistant oil is used as a nontoxic plasticizer and stabilizer, which can stabilize the active oxygen atoms on the PVC chain, and act as a stabilizer, and has good compatibility with PVC resin, low volatility, small migration, excellent thermal stability and light stability, good water resistance and oil resistance, and can give tableware good mechanical strength, weather resistance and electric resistance, and no toxicity.
1.5-2 parts of dioctyl terephthalate plasticizer can be reduced by adding one part of D39 under the same conditions, other physical properties are improved, and the dioctyl terephthalate plasticizer is not volatilized at the processing temperature of 300 ℃; 2-3 parts of D39 heat-resistant oil is added, so that the photo-thermal stability of the PVC tableware can be greatly improved, and about one third of the dosage of light and heat stabilizers in a common formula of the PVC tableware can be reduced; after D39 heat-resistant oil is added, the tableware produced by the invention has unique heat-resistant, light-resistant and ageing-resistant performances and is not easy to fade when in use.
DNTXIB, also known as 2,2,4-trimethyl-1,3-pentanediol diisobutyrate, of the formula: C16H30O4, CAS No.: 6846-50-0, DNTXIB is a multi-purpose plasticizer, non-toxic plasticizer without benzene ring, not only dissolve with all general second-grade plasticizers, especially can exert the best effect when cooperating with DOTP to use, can reduce the viscosity of the solution, increase the stability of the solution viscosity at the same time, pour into the small mould of the mould easily, mix with PVC resin easily, save the time before the mould is shaped at the same time, because the viscosity reduces in PVC liquid, it is difficult to mix into the air, keep the appearance of tableware smooth and esthetic.
The tableware has the characteristics of excellent heat resistance, good weather resistance, environmental protection and no toxicity, has good compatibility with PVC resin, and has a certain lubricating effect.
The PVC viscosity reducer is D80 in the preferred model, has extremely low PVC aromatic hydrocarbon content and no odor, improves the comfort level of workers, is environment-friendly and safe, can effectively reduce the formula viscosity of PVC paste resin as the viscosity reducer of the PVC paste resin, maintains longer viscosity stability, reduces the generation of bubbles, increases the using amount of fillers, enables a PVC meal to have smooth hand feeling, has better anti-dirt adhesion performance, reduces the using amount of the plasticizer and the cost of making tableware, improves the ductility of the PVC resin, and can meet the environment-friendly requirement of export commodities: such as GSG, FDA and ROHS certification in Europe, the REACH registration environmental protection certification requirement is completed.
The plasticizer of dioctyl terephthalate, DNTXIB and heat-resistant oil are mutually matched, the compatibility with PVC paste resin, PVC blending resin and PVC resin is high, the plasticizer plays a good role in plasticizing the PVC paste resin, the PVC blending resin and the PVC resin, the manufactured tableware has good hand feeling, the DNTXIB, the non-calcium-zinc-phenate and the PVC viscosity reducer are mutually matched, the surface smoothness of the tableware is improved, the surface is clean and smooth, the texture is clear, the hot enameling and demolding are easy to remove, and the mould is not adhered.
The thermochromic toner is prepared from an electron transfer type organic compound system, wherein the electron transfer type organic compound is an organic color system with a special chemical structure, and the molecular structure of the organic matter is changed due to electron transfer at a specific temperature, so that color conversion is realized. This color-changing substance is not only vivid in color, but also can change color from a "colored = = colorless" state, which is not possessed by heavy metal double salt complex type and liquid crystal type reversible thermochromic substances.
The pigment has spherical particles with average diameter of 2-7 microns (one micron is equal to one thousandth of millimeter), inside color change material and outside transparent shell with thickness of 0.2-0.5 micron to protect color change material from being corroded by other chemical matter. It is therefore important to avoid damage to the outer shell of this layer during use.
The temperature sensing color change can change color repeatedly with the temperature rise and fall. (taking red at 31 ℃ as an example, the discoloration form is colorless at 31 ℃ or more and red at 31 ℃ or less). The thermochromic product is mainly applied to series products of human body temperature sensing and can also be used as an anti-counterfeiting design.
The invention has the beneficial effects that:
(1) The tableware is made of environment-friendly PVC, mainly adopts PVC paste resin, PVC blending resin and PVC resin, is nontoxic and odorless, meets the GB4806.7-2016 standard of the mandatory national tableware requirement, and is safe, environment-friendly and pollution-free.
(2) The tableware has a heat insulation effect, when the temperature of tableware containing food is too high, only the normal weather environment temperature exists on the outer layer of hand contact, the tableware cannot feel hot to the hand, other articles are not needed to be padded between the tableware and the hand during use, the hidden danger that the human body is scalded by the high-temperature food is avoided, the tableware is convenient to use, and the use experience effect of the tableware is improved.
(3) The main raw materials of the tableware are PVC resin, the toughness is good, the formula is subjected to tests for numerous times, the hardness of the tableware manufactured under the raw materials in the proportion is 85-95 degrees, the impact force of 60-80 kilograms can be borne, the tableware is not easy to break, the tableware is not easy to damage due to falling and collision at ordinary times, and the human body is not easy to be injured due to tableware fragments if the tableware is damaged due to excessive impact.
(4) The surface of the tableware has certain toughness, and when the tableware is used, if the tableware is contacted and collided with each other, the noise can not occur, the noise can be reduced by 50 to 70 percent, and the tableware is not easy to interfere users or surrounding people due to the noise.
(5) The tableware has the temperature sensing and color changing powder, when the food temperature that the tableware is equipped with is more than 28 degrees, the food contact surface top layer can vary the colour of different depths according to the temperature of difference, and is more pleasing to the eye, improves experience effect, can play the suggestion effect simultaneously, especially child when having the tableware, can judge the temperature of food in the tableware, eat again according to the temperature condition, avoids the food high temperature to scald the human body, improves performance and experience effect.
(6) The tableware is heat-resistant and cold-resistant, has good heat stability, light stability, water resistance, oil resistance and aging resistance, can be kept stable in daily life, no matter in winter or summer, no matter under the conditions of high temperature, much oil and the like, is long in use time, is not easy to fade, has better using effect and is wide in application range.
(7) The preparation method has the advantages of easy demoulding, no adhesion, no cracking, bubbling, scorching and other phenomena during the forming, simple and convenient process operation, low cost, short preparation period, good tableware quality, pure and bright color, and obvious economic benefit after being put into practical production.
Detailed Description
Example 1
The formula of the PVC tableware comprises the following raw materials in percentage by weight: PVC paste resin: 30%, PVC blend resin: 35%, PVC resin: 12%, plasticizer 20%, stabilizer: 1%, viscosity reducer: 2 percent.
Example 2
The formula of the PVC tableware comprises the following raw materials in percentage by weight: PVC paste resin: 34.6%, PVC blend resin: 32.5%, PVC resin: 10.8%, plasticizer 15.6%, stabilizer: 2.2%, viscosity reducer: 4.3 percent.
Example 3
The formula of the PVC tableware comprises the following raw materials in percentage by weight: PVC paste resin: 40%, PVC blend resin: 32%, PVC resin: 8%, plasticizer 11%, stabilizer: 3%, viscosity reducer: 6 percent.
Example 4
The formula of the PVC tableware comprises the following raw materials in percentage by weight: PVC paste resin: 40%, PVC blend resin: 30%, PVC resin: 12%, dioctyl terephthalate: 2%, DNTXIB: 12%, heat resistant oil: 1%, stabilizer: 1%, viscosity reducer: 2 percent.
Example 5
The formula of the PVC tableware comprises the following raw materials in percentage by weight: PVC paste resin: 40%, PVC blend resin: 31%, PVC resin: 8%, dioctyl terephthalate: 6%, DNTXIB: 8%, heat resistant oil: 2%, stabilizer: 3%, viscosity reducer: 2 percent.
Example 6
The formula of the PVC tableware comprises the following raw materials in percentage by weight: PVC paste resin: 34.6%, PVC blend resin: 32.5%, PVC resin: 10.8%, dioctyl terephthalate: 4.3%, DNTXIB:10%, heat resistant oil: 1.3%, calcium and zinc without phenol: 2.2%, viscosity reducer: 4.3 percent.
Example 7
A manufacturing method of PVC tableware comprises the following steps:
s1: pouring various raw materials according to the formula proportion into a stirrer to be uniformly stirred to form liquid PVC, and toning in a vacuum environment, wherein the toned toner is temperature-sensitive variable toner;
s2, pouring the liquid with the well-mixed color into a charging container, and setting the dosage required by tableware manufacturing;
s3: injecting the PVC liquid with the set dosage into a mold, covering and locking, and then putting the mold into a vinyl machine with the set temperature and time for refining, wherein the set temperature is 270 ℃ and the time is 230 seconds;
and S4, after the set time is over, drawing the die out of the die for water cooling, and then opening the cooled die cover to take out the tableware.
Example 8
A manufacturing method of PVC tableware comprises the following steps:
s1: pouring various raw materials according to the formula proportion into a stirrer to be uniformly stirred to form liquid PVC, and toning in a vacuum environment, wherein the toned toner is temperature-sensitive variable toner;
s2, pouring the liquid with the well-mixed color into a charging container, and setting the dosage required by tableware manufacturing;
s3: injecting the PVC liquid with the set dosage into a mold, covering and locking, and then putting the mold into a vinyl machine with the set temperature and time for refining, wherein the set temperature is 290 ℃, and the time is 250 seconds;
and S4, after the set time is over, drawing the die out of the die for water cooling, and then opening the cooled die cover to take out the tableware.
Example 9
A manufacturing method of PVC tableware comprises the following steps:
s1: pouring various raw materials according to the formula proportion into a stirrer to be uniformly stirred to form liquid PVC, and toning in a vacuum environment, wherein the toned toner is temperature-sensitive variable toner;
s2, pouring the liquid with the well-mixed color into a charging container, and setting the dosage required by tableware manufacturing;
s3: injecting the PVC liquid with the set dosage into a mold, covering and locking, and then putting the mold into a vinyl machine with the set temperature and time for refining, wherein the set temperature is 280 ℃ and the time is 240 seconds;
and S4, after the set time is over, drawing the die out of the die for water cooling, and then opening the cooled die cover to take out the tableware.
The quality of the manufactured tableware is detected according to the detection standard GB4806.7-2016, and the number of the detection report is SHF2208028-01, so that the following detection results are obtained:
the tableware is made of environment-friendly PVC, mainly adopts PVC paste resin, PVC blending resin and PVC resin, is nontoxic, odorless and non-fading, accords with the healthy use standard of tableware, and cannot cause harm to human bodies.
The hardness values of the tableware manufactured in the above examples 1 to 9 measured by the shore hardness test method are respectively: example 1 had a hardness of 92 degrees, example 2 had a hardness of 88 degrees, example 3 had a hardness of 90 degrees, example 4 had a hardness of 85 degrees, example 5 had a hardness of 94 degrees, example 6 had a hardness of 89 degrees, example 7 had a hardness of 93 degrees, example 8 had a hardness of 85 degrees, and example 9 had a hardness of 91 degrees.
The tableware is made by mutually interacting the components in the formula, has high heat insulation, high hardness, bright color, soft and tough surface, thermochromic property, heat resistance, cold resistance, oil resistance, ageing resistance and high stability, has various excellent properties, can adapt to different conditions, has wide application range, good use effect, good experience feeling, simple manufacturing method, short period, low cost, high quality of the made tableware and good benefit, and can be reused as a reclaimed material after being completely recycled and treated, thereby improving the utilization rate of the material.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and shall cover the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (8)
1. The formula of the PVC tableware is characterized by comprising the following raw materials in percentage by weight: PVC paste resin: 30-40%, PVC blend resin: 30-35%, PVC resin: 8-12%, plasticizer 11-20%, stabilizer: 1-3%, viscosity reducer: 2-6%, and the sum of the percentage contents of all the components is 100%.
2. The formulation for PVC tableware according to claim 1, wherein said PVC paste resin: 34.6%, PVC blend resin: 32.5%, PVC resin: 10.8%, plasticizer 15.6%, stabilizer: 2.2%, viscosity reducer: 4.3 percent.
3. The formulation of PVC tableware according to claim 1 or 2, wherein said plasticizer is composed of the following raw materials in percentage by weight, dioctyl terephthalate: 2-6%, DNTXIB:8-12%, heat-resistant oil: 1 to 2 percent.
4. The formulation of claim 3, wherein the stabilizer is calcium zinc phenate free.
5. The formulation for PVC tableware according to claim 4, wherein said PVC paste resin: 34.6%, PVC blend resin: 32.5%, PVC resin: 10.8%, dioctyl terephthalate: 4.3%, DNTXIB:10%, heat resistant oil: 1.3%, calcium and zinc without phenol: 2.2%, viscosity reducer: 4.3 percent.
6. A method of making PVC tableware according to any one of claims 1 to 5 including the steps of:
s1: pouring various raw materials according to the formula proportion into a stirrer for uniformly stirring to form liquid PVC, and toning in a vacuum environment;
s2, pouring the liquid with the well-mixed color into a charging container, and setting the dosage required by tableware manufacturing;
s3: injecting the PVC liquid with the set dosage into the mold, covering and locking, and then putting the mold into a vinyl machine with the set temperature and time for refining to obtain the PVC pipe;
and S4, after the set time is over, drawing the die out of the die for water cooling, and then opening the cooled die cover to take out the tableware.
7. The method of claim 6, wherein the temperature set in S3 is 270-290 ℃ for 230-250 seconds.
8. The method for manufacturing PVC tableware according to claim 6, wherein the color-adjusting toner in S1 is thermochromic toner.
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