CN101671482A - Bi-component addition type room temperature curing silicone rubber for manufacture of manual model toys - Google Patents
Bi-component addition type room temperature curing silicone rubber for manufacture of manual model toys Download PDFInfo
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Abstract
The invention discloses bi-component addition type room temperature curing silicone rubber for the manufacture of manual model toys, comprising a putty component and a catalyst component, wherein thevolume ratio of the putty component and the catalyst component is 1:1; each raw material component in the putty component comprises 40-80 percent of methyl vinyl silicone oil, 0.5-10 percent of crosslinker methyl hydrogen silicone oil, 0.01-0.5 percent of inhibitor, 0.2-5.0 percent of low-density microsphere fillers, 10-50ppm of hydrogen-capturing agent, 3-15 percent of mold release agent, 1-10 percent of plasticizer and 10-30 percent of fillers; and each raw material component in the catalyst component comprises 40-80 percent of methyl vinyl silica, 0.2-5 percent of methyl vinyl siloxane platinum coordination complex compound and low-density microsphere fillers, 3-15 percent of mold release agent, 1-10 percent of plasticizer and 10-30 percent of fillers. The bi-component addition type room temperature curing silicone rubber is suitable for the manufacture of manual model toys of children, and has very good water floating performance and security.
Description
Technical field
The present invention relates to the silicon rubber field, specifically is a kind of two-component room-temperature-vulcanized silicone rubber that is used to make manual model toys.
Background technology
Addition type room temperature vulcanized silicone rubber is two components separately before sulfuration, and a component mainly is methyl ethylene silicone oil and Methyl Hydrogen Polysiloxane Fluid linking agent, and another component main component is to contain platinum complex catalyst.During use two components are mixed according to a certain percentage, vulcanize under the room temperature, curing time is different because of prescription, does not wait to a few hours in several minutes.Dual composition addition type room temperature vulcanized silicone rubber vulcanization reaction principle is addition reaction, and the vinyl on the methyl ethylene silicone oil molecule with the polycarbosilane hydroxide (hydrogen of SiH) of Methyl Hydrogen Polysiloxane Fluid linking agent addition reaction, generation-CH takes place under platinum complex catalysis
2-CH
2-Si-cross-link bond.Not having small molecules because of addition reaction and discharge, do not shrink so the sulfuration back has, is excellent cast material.Can add reinforcing filler in the prescription in addition, as be fuming type silicon-dioxide and other filler, as silica powder, silicon powder, lime carbonate, kaolin, titanium dioxide, talcum powder etc., this silicon rubber has suitable physical and mechanical properties, self cure, easy to use, can be used as sealing material and adhesives etc.
Manual model toys, as plasticine, but the kneading moulding can not forever keep shape because of it can not solidify, intensity that lack of materials is essential and elasticity, it can not be used for making elastic ball and wrist strap etc.Because of its proportion is higher than 1 gram per centimeter
3, can not be floating on the water.At American market very popular manual model toys Play-doh, major ingredient is a flour, water and salt, but kneading moulding or put into its various moulds and make various toys.Can not solidify under the Play-doh room temperature, have only at high temperature (more than 100 ℃) baking to solidify and to harden, the toy of manufacturing could forever be preserved.But the Play-doh toy after the curing is hard nonelastic, can not make elastic ball and wrist strap, and its proportion is higher than 1 gram per centimeter
3, the ship model of making can not be floating on the water.Current manual model toys is having a lot of restrictions aspect the diversity of object.
Summary of the invention
The invention provides a kind of two-component addition type room temperature vulcanized silicone rubber that is used to make manual model toys, putty component and catalyst component by separate packages are formed, two components can furnishing very high viscosity puttylike nian silica cement, its viscosity is similar to the plasticine on the market, and has floatability and bitter taste.
Technical scheme of the present invention is:
Be used to make the two-component addition type room temperature vulcanized silicone rubber of manual model toys, include the putty component and the catalyst component of separate packages, it is characterized in that:
(1), the part by weight of each feed composition is in the described putty component:
Methyl ethylene silicone oil 40-80
Linking agent Methyl Hydrogen Polysiloxane Fluid 0.5-10
Inhibitor 0.01-0.5
Low density microballoon filler 0.2-5.0
Hydrogen trapping agent 10-50ppm
Releasing agent 3-15
Softening agent 1-10
Filler 10-30;
Described methyl ethylene silicone oil is the linear methyl ethylene methyl-silicone oil of viscosity at the 50-65000 centipoise, vinyl molar content 0.05%-0.5%;
Described Methyl Hydrogen Polysiloxane Fluid linking agent, viscosity 20-50 centipoise, hydrogen content 0.3-1.0% has hydrogen atom directly to link to each other with chemical bond with Siliciumatom on the methyl-silicone oil;
Described inhibitor is low-molecular-weight liquid, selects 1 for use, and 3-divinyl dimethyl sily oxide is or/and ring-like vinylsiloxane;
Described low density microballoon filler is that diameter 10-100 micron is hollow or include the spheroidal particle of low-boiling point gas;
Described hydrogen trapping agent selects platinum for use or/and the metallic palladium powder;
The kinematic viscosity of described releasing agent is 5-40mm
2/ s selects organic silicone oil for use or/and mineral oil;
Described softening agent is selected phthalic ester plasticizer or environment-friendly type softening agent for use;
Described filler is selected silicon dioxide powder, aluminum oxide powder, titanium dioxide, lime carbonate, talcum powder, kaolin, polynite, unformed specific surface area be fuming type white carbon black or the wherein multiple mixture between the 160-300 meters squared per gram for use;
(2), each feed composition part by weight is in the described catalyst component:
Methyl ethylene silica gel 40-80
Ethylene methacrylic radical siloxane coordination platinum complex catalyst,
Low density microballoon filler 0.2-5
Releasing agent 3-15
Softening agent 1-10
Filler 10-30;
Described methyl ethylene silica gel is the linear methyl ethylene methyl-silicone oil of viscosity at the 50-65000 centipoise, vinyl molar content 0.05%-0.3%;
Described ethylene methacrylic radical siloxane coordination platinum complex catalyst, in catalyst component, the actual effective content of platinum is 5ppm-30ppm;
Described low density microballoon filler is that diameter 10-100 micron is hollow or include the spheroidal particle of low-boiling point gas;
The kinematic viscosity of described releasing agent is at 5-40mm
2/ s selects organic silicone oil or mineral oil for use;
Described softening agent is selected phthalic ester plasticizer or environment-friendly type softening agent for use;
Described filler is selected silicon dioxide powder, aluminum oxide powder, titanium dioxide, lime carbonate, talcum powder, kaolin, polynite, unformed specific surface area be fuming type white carbon black or the wherein multiple mixture between the 160-300 meters squared per gram for use.
The described two-component addition type room temperature vulcanized silicone rubber that is used to make manual model toys is characterized in that: the low density microballoon filler in described putty component and the catalyst component selects for use density to be lower than 0.3 gram per centimeter
3Glass microballon or include the polymer microballoon of low-boiling point gas, the particle diameter of polymer microballoon is between the 10-40 micron, density is lower than 0.1 grams per milliliter; Releasing agent purity in described putty component and the catalyst component is food grade or medical grade purity.
The described two-component addition type room temperature vulcanized silicone rubber that is used to make manual model toys, it is characterized in that: the linking agent Methyl Hydrogen Polysiloxane Fluid in the described putty component contains other substituted radical, and each molecule of linking agent Methyl Hydrogen Polysiloxane Fluid contains the hydrogen atom that directly links to each other with Siliciumatom more than two; The linear methyl ethylene silicone oil that contains two vinyl-functional end groups on each silica gel molecule of methyl ethylene silicone oil in the described putty component; The linear methyl ethylene silica gel that contains two vinyl-functional end groups on each silica gel molecule of methyl ethylene silica gel in the described catalyst component; Platinum content accounts for 0.2-4% in the ethylene methacrylic radical siloxane coordination platinum complex catalyst in the described catalyst component.
The described two-component addition type room temperature vulcanized silicone rubber that is used to make manual model toys is characterized in that: be added with the bitter taste additive in the described putty component, consumption 10-100ppm; Be added with the bitter taste additive in the described catalyst component, consumption 10-100ppm; Be added with pigment in the described putty component.
The described two-component addition type room temperature vulcanized silicone rubber that is used to make manual model toys is characterized in that: be added with the bitter taste additive in the described putty component, consumption 30-50ppm; Be added with the bitter taste additive in the described catalyst component, consumption 30-50ppm.
Linking agent Methyl Hydrogen Polysiloxane Fluid in the described putty component contains other substituted radical, and each molecule of linking agent Methyl Hydrogen Polysiloxane Fluid contains the hydrogen atom that directly links to each other with Siliciumatom more than two; The linear methyl ethylene silicone oil that contains two vinyl-functional end groups on each silica gel molecule of methyl ethylene silicone oil in the described putty component; The linear methyl ethylene silica gel that contains two vinyl-functional end groups on each silica gel molecule of methyl ethylene silica gel in the described catalyst component; Platinum content accounts for 0.2-4% in the ethylene methacrylic radical siloxane coordination platinum complex catalyst in the described catalyst component.
Be added with the bitter taste additive in the described putty component, consumption 10-100ppm; Be added with the bitter taste additive in the described catalyst component, consumption 10-100ppm; Be added with pigment in the described putty component, the weight percent of shared putty component is 0.3-10%.
Be added with the bitter taste additive in the described putty component, consumption 30-50ppm; Be added with the bitter taste additive in the described catalyst component, consumption 30-50ppm.
Supporting with the present invention, toy models need be equipped with when utilizing two kinds of component raw material of the present invention to make toy,, the imagination of toy models and design unrestricted.Birds and beasts, the flowers, plants and insect fish, daily implements, the weapon naval vessel, geometrical shape, cartoon people and thing, wrist strap or the like is all-embracing.Can also be designed to personalized model,, can be before toy solidifies stamp children oneself on the toy surface and want the phonetic or the numeral of printing with letter or number as the letter and number model.As on wrist strap, stamping name phonetic, telephone number, commemoration day etc., unique novelty.
In the two-pack of the present invention, can add pigment in the putty component, color is arranged; Catalyst component does not have pigment, is white.Two components with 1: 1 volume ratio be mixed into evenly of the same colour after, put into the toy models die cavity, the working hour is 4-8 minute, curing molding in 10 to 20 minutes just can be taken out from model.
Because the silicon rubber after the sulfuration has higher draw tensile strength and tearing toughness, low density (＜1.0 gram per centimeters
3), snappiness, the smallclothes toy of making is durable in use, and bead resembles common ball good springiness, and toy can be floating on the water, and is interesting higher than plasticine on the present market and Play-doh manual model toys.
Because of containing bitters, the toy of children after with the small size sulfuration put into mouth and can be felt bitter taste and spue in the prescription of the present invention, can avoid the accident of eating, thereby better than plasticine on the present market and the security of Play-doh manual model toys.
The present invention is prevention that the floating on water surface that brings of its low density and bitter the bring security of eating compared to other addition-type silicon rubber and the remarkable improvement of the manual model toys on the market now.This two characteristic contains low density microballoon filler and bitter taste additive respectively and forms in prescription.
Children also can be according to the imagination of oneself, and the putty component that can select different colours and catalyst component are pinched into the shape of any imagination with two component material.
The present invention also can be used for recording newborn infant and children's fingerprint and pin mould.Two components with 1: 1 volume ratio be mixed into evenly of the same colour after, with newborn infant and children's palm or sole by being mixed on the uniform material, just stay palm and sole after removing, the marking that comprises finger, because dual composition addition type room temperature vulcanized silicone rubber sulfuration back has do not shrink, what the marking reflected is real size and shape.The dual composition addition type room temperature vulcanized silicone rubber copying surface tolerance range of this invention is less than 75 microns, and promptly the vestige of 75 microns following sizes can clear duplicated record, so newborn infant and children's fingerprint and pin line can clear records, can be used as the precious souvenir collection.
Embodiment
Be used to make the two-component addition type room temperature vulcanized silicone rubber of manual model toys, include the putty component and the catalyst component of separate packages:
The putty component is mixed by the following raw materials component, and each component gross weight is absolutely:
(1), methyl ethylene silicone oil: weight percent 50-80%, viscosity can be used at the linear methyl ethylene methyl-silicone oil of 50-65000 centipoise.The methyl ethylene silicone oil of several different viscosity can be mixed and adjust to required viscosity, the linear methyl ethylene silica gel that contains two vinyl-functional end groups on each silica gel molecule is more suitable, 0.05 mole of %-0.5 mole of contents of ethylene % is as the methyl ethylene silica gel XHG-110 series of new Anhua, Zhejiang worker group production;
(2), linking agent Methyl Hydrogen Polysiloxane Fluid: weight percent 0.5-10%, viscosity 20-50 centipoise, hydrogen content 0.3%-1.0%, there is hydrogen atom directly to link to each other with chemical bond on the methyl-silicone oil with Siliciumatom, the Methyl Hydrogen Polysiloxane Fluid linking agent can also contain other substituted radical, as alkyl (ethyl), aryl, halogeno-group and other substituting group.Each molecule of linking agent preferably contains the hydrogen atom that directly links to each other with Siliciumatom more than two, as the Methyl Hydrogen Polysiloxane Fluid XHG-202 of new Anhua, Zhejiang worker group production;
(3), inhibitor: be low-molecular-weight liquid, weight percent 0.01-0.5% is used to postpone addition vulcanization reaction, puts into mould form after making the user have time enough that two component material are mixed.Inhibitor commonly used is 1, and 3-divinyl dimethyl sily oxide and ring-like vinylsiloxane are as U.S. Anderson﹠amp; Associates, LLC product A ndisil MVC;
(4), low density microballoon filler: weight percent 0.2-5.0%, low density microballoon filler are that diameter 10-100 micron is hollow or include the spheroidal particle of low-boiling point gas, as the glass microballon K1 of 3M company, K15 and K20 etc., its density is lower than 0.5 gram per centimeter
3, in prescription, preferably select for use density to be lower than 0.3 gram per centimeter
3Glass microballon or include the polymer microballoon of low-boiling point gas, the particle diameter of polymer microballoon is between the 10-40 micron, density is lower than 0.1 grams per milliliter;
(5), hydrogen trapping agent: consumption is 10-50ppm, the silastic material storage time is long, can absorb airborne moisture, in the polymerization vulcanization reaction, hydrogen atom on the hydrogeneous methyl-silicone oil of linking agent and moist part of reaction, release hydrogen, the hydrogen trapping agent is caught the hydrogen that discharges, in order to avoid generate the intensity that the space reduces material in the material after sulfuration.Platinum and metallic palladium powder can be used as the hydrogen trapping agent;
(6), the bitter taste additive: consumption is 10-100ppm, preferred 30-50ppm, the effect of bitter taste additive is to stop the eat toy of small size or shape of food of children or pet.Denatonium Benzoate and denatonium saccharide are the most bitter additives of present known taste, U.S. AversionTechnologies, and Denatonium Benzoate and denatonium saccharide that Inc. produces can use;
(5), releasing agent: weight percent 3-15%, kinematic viscosity is at 5-40mm
2/ s is easy to sulfuration back silicon rubber is taken off from trace surface, and industrial releasing agent commonly used can be used as organic silicone oil and mineral wet goods, and releasing agent purity is food grade or medical grade;
(6), softening agent: weight percent 1%～10%, industrial silicon rubber softening agent commonly used can be used, as phthalic ester plasticizer, but for greater safety, the softening agent of environment-friendly type is more suitable, as the DX-360 environment-friendly plasticizer of Nantong city precious one-tenth softening agent Science and Technology Ltd. production;
(7), filler: weight percent 5%-20%, widely available filler comprises silicon dioxide powder, aluminum oxide powder, titanium dioxide, lime carbonate, talcum powder, kaolin, polynite or the like, wherein unformed specific surface area is more suitable between the type white carbon black of being fuming of 160-300 meters squared per gram, Cab-o-SilTS-530 as the production of Cabot company, Cab-o-Sil TS-140, the AR200 that Cab-o-Sil M5 and Evonik Degussa company produce, R812, R106 and R8200, optional single filler of filler or mixed fillers;
(10), pigment: weight percent 0.3%～10%, powdery or liquid pigment can be used, but in order to increase pigment blended homogeneity, pigment preferably in advance with the mixed color of methyl ethylene silicone oil, red, Huang, indigo plant, green, purple, the clear all colours that waits can.Heavy metal in the pigment, as lead, mercury, chromium equal size must be lower than limiting the quantity of in the U.S. and the European Union's toy safety standard, build the JS series color that glad plasthetics factory produces as the Dongguan, Guangdong.
Catalyst component is mixed by the following raw materials component, and each component gross weight is absolutely:
(1) methyl ethylene silica gel: weight percent 40-80%, the methyl silica gel that contains vinyl all can use, but the linear methyl ethylene silica gel that contains two vinyl ends on each silica gel molecule is more suitable, 0.05 mole of %-0.3 mole of contents of ethylene % on the methyl ethylene silicone oil, as the methyl ethylene silica gel XHG-110 series that new Anhua, Zhejiang worker group produces, the range of viscosities 50-65000 centipoise of methyl ethylene silica gel;
(2) ethylene methacrylic radical siloxane coordination platinum complex catalyst: platinum content accounts for the platinum complex catalyst of 0.2-4%, as the P21-3000 platinum complex catalyst of the Liyang extra large chemical industry of indigo plant company limited production.In catalyst component, the actual effective content of platinum is that the addition reaction under 5ppm-30ppm. hydrogen and the vinyl room temperature needs noble metal catalyst, only is platinum complex catalyst, platinum complex catalyst is made by Platinic chloride and vinyl silicone oil reaction, as the complex compound of other precious metal or salt also useful as catalysts,, consider toxicity as corresponding complex compound of precious metals such as palladium, rhodium or salt useful as catalysts, platinum complexes catalyzer safety non-toxic, optimum;
(3) low density microballoon filler: weight percent 0.2-5.0%, low density microballoon filler are that diameter 10-100 micron is hollow or include the spheroidal particle of low-boiling point gas, as the glass microballon K1 of 3M company, K15 and K20 etc.Their density is lower than 0.5 gram per centimeter
3, in prescription, preferably select for use density to be lower than 0.3 gram per centimeter
3Glass microballon.Low density includes that the polymer microballoon of low-boiling point gas is also available, and the particle diameter of polymer microballoon is between the 10-40 micron, and density is lower than 0.1 grams per milliliter;
(4) bitter taste additive: consumption 10-100ppm, preferred 30-50ppm, the effect of bitter taste additive is to stop the eat toy of small size or shape of food of children or pet.Denatonium Benzoate and denatonium saccharide are the most bitter additives of present known taste, U.S. AversionTechnologies, and Denatonium Benzoate and denatonium saccharide that Inc. produces can use;
(5) releasing agent: weight percent 3-15%, kinematic viscosity is at 5-40mm
2/ s is easy to the toy after the sulfuration is taken out from mould form, also makes two components of puttylike nian not touch with one's hand.Industrial releasing agent commonly used can be used as organic silicone oil and mineral wet goods, and releasing agent purity is food grade or medical grade;
(6) softening agent: weight percent 1-10%, industrial silicon rubber softening agent commonly used can be used, as phthalic ester plasticizer, but for greater safety, the softening agent of environment-friendly type is more suitable, as the DX-360 environment-friendly plasticizer of Nantong city precious one-tenth softening agent Science and Technology Ltd. production;
(7) filler: weight percent 10%-30%, widely available filler comprises silicon dioxide powder, aluminum oxide powder, titanium dioxide, lime carbonate, talcum powder, kaolin, polynite or the like, wherein unformed specific surface area is more suitable between the type white carbon black (silicon-dioxide) of being fuming of 160-300 meters squared per gram, Cab-o-Sil TS-530 as the production of U.S. Cabot company, Cab-o-Sil TS-140, the AR200 that Cab-o-Sil M5 and German EvonikDegussa company produce, R812, R106 and R8200 etc., optional single filler of filler or mixed fillers;
With base stock and catalyst component by weight than uniform mixing.Preferably use the star-like stirrer of duplicate rows (the perfect vacuum degree is lower than 0.02MPa) under vacuum even in stirring at room, the material of gained is puttylike nian, and is tack-free.Two components mix with 1: 1 volume ratio, at room temperature, after the mixing, put into the toy models die cavity, can take out after the sulfuration.Formula adjustment under room temperature 23-25 degree centigrade, is approximately wanted 30-40 second to allowing the normal children have time enough that two component material are mixed, and the material that mixes was put into mould form 4-8 minute, takes out postcure moulding in 10-20 minute then.
Claims (5)
1, be used to make the two-component addition type room temperature vulcanized silicone rubber of manual model toys, include the putty component and the catalyst component of separate packages, it is characterized in that:
(1), the part by weight of each feed composition is in the described putty component:
Methyl ethylene silicone oil 40-80
Linking agent Methyl Hydrogen Polysiloxane Fluid 0.5-10
Inhibitor 0.01-0.5
Low density microballoon filler 0.2-5.0
Hydrogen trapping agent 10-50ppm
Releasing agent 3-15
Softening agent 1-10
Filler 10-30;
Described methyl ethylene silicone oil is the linear methyl ethylene methyl-silicone oil of viscosity at the 50-65000 centipoise, vinyl molar content 0.05%-0.5%;
Described Methyl Hydrogen Polysiloxane Fluid linking agent, viscosity 20-50 centipoise, hydrogen content 0.3-1.0% has hydrogen atom directly to link to each other with chemical bond with Siliciumatom on the methyl-silicone oil;
Described inhibitor is low-molecular-weight liquid, selects 1 for use, and 3-divinyl dimethyl sily oxide is or/and ring-like vinylsiloxane;
Described low density microballoon filler is that diameter 10-100 micron is hollow or include the spheroidal particle of low-boiling point gas;
Described hydrogen trapping agent selects platinum for use or/and the metallic palladium powder;
The kinematic viscosity of described releasing agent is 5-40mm
2/ s selects organic silicone oil for use or/and mineral oil;
Described softening agent is selected phthalic ester plasticizer or environment-friendly type softening agent for use;
Described filler is selected silicon dioxide powder, aluminum oxide powder, titanium dioxide, lime carbonate, talcum powder, kaolin, polynite, unformed specific surface area be fuming type white carbon black or the wherein multiple mixture between the 160-300 meters squared per gram for use;
(2), each feed composition part by weight is in the described catalyst component:
Methyl ethylene silica gel 40-80
Ethylene methacrylic radical siloxane coordination platinum complex catalyst,
Low density microballoon filler 0.2-5
Releasing agent 3-15
Softening agent 1-10
Filler 10-30;
Described methyl ethylene silica gel is the linear methyl ethylene methyl-silicone oil of viscosity at the 50-65000 centipoise, vinyl molar content 0.05%-0.3%;
Described ethylene methacrylic radical siloxane coordination platinum complex catalyst, in catalyst component, the actual effective content of platinum is 5ppm-30ppm;
Described low density microballoon filler is that diameter 10-100 micron is hollow or include the spheroidal particle of low-boiling point gas;
The kinematic viscosity of described releasing agent is at 5-40mm
2/ s selects organic silicone oil or mineral oil for use;
Described softening agent is selected phthalic ester plasticizer or environment-friendly type softening agent for use;
Described filler is selected silicon dioxide powder, aluminum oxide powder, titanium dioxide, lime carbonate, talcum powder, kaolin, polynite, unformed specific surface area be fuming type white carbon black or the wherein multiple mixture between the 160-300 meters squared per gram for use.
2, the two-component addition type room temperature vulcanized silicone rubber that is used to make manual model toys according to claim 1 is characterized in that: the low density microballoon filler in described putty component and the catalyst component selects for use density to be lower than 0.3 gram per centimeter
3Glass microballon or include the polymer microballoon of low-boiling point gas, the particle diameter of polymer microballoon is between the 10-40 micron, density is lower than 0.1 grams per milliliter; Releasing agent purity in described putty component and the catalyst component is food grade or medical grade purity.
3, the two-component addition type room temperature vulcanized silicone rubber that is used to make manual model toys according to claim 1, it is characterized in that: the linking agent Methyl Hydrogen Polysiloxane Fluid in the described putty component contains other substituted radical, and each molecule of linking agent Methyl Hydrogen Polysiloxane Fluid contains the hydrogen atom that directly links to each other with Siliciumatom more than two; The linear methyl ethylene silicone oil that contains two vinyl-functional end groups on each silica gel molecule of methyl ethylene silicone oil in the described putty component; The linear methyl ethylene silica gel that contains two vinyl-functional end groups on each silica gel molecule of methyl ethylene silica gel in the described catalyst component; Platinum content accounts for 0.2-4% in the ethylene methacrylic radical siloxane coordination platinum complex catalyst in the described catalyst component.
4, the two-component addition type room temperature vulcanized silicone rubber that is used to make manual model toys according to claim 1 is characterized in that: be added with the bitter taste additive in the described putty component, consumption 10-100ppm; Be added with the bitter taste additive in the described catalyst component, consumption 10-100ppm; Be added with pigment in the described putty component.
5, the two-component addition type room temperature vulcanized silicone rubber that is used to make manual model toys according to claim 4 is characterized in that: be added with the bitter taste additive in the described putty component, consumption 30-50ppm; Be added with the bitter taste additive in the described catalyst component, consumption 30-50ppm.
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