CN111040124A - Polyurethane microporous elastomer composite material applied to pet dog bite stick and preparation method thereof - Google Patents

Polyurethane microporous elastomer composite material applied to pet dog bite stick and preparation method thereof Download PDF

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Publication number
CN111040124A
CN111040124A CN201911352681.7A CN201911352681A CN111040124A CN 111040124 A CN111040124 A CN 111040124A CN 201911352681 A CN201911352681 A CN 201911352681A CN 111040124 A CN111040124 A CN 111040124A
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component
polyester polyol
pet dog
polyurethane
dog bite
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CN201911352681.7A
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Chinese (zh)
Inventor
李海朝
甘经虎
孙清峰
任明月
孟素青
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Shandong Dongda Inov Polyurethane Co Ltd
Shandong Inov Polyurethane Co Ltd
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Shandong Dongda Inov Polyurethane Co Ltd
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Priority to CN201911352681.7A priority Critical patent/CN111040124A/en
Publication of CN111040124A publication Critical patent/CN111040124A/en
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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K15/00—Devices for taming animals, e.g. nose-rings or hobbles; Devices for overturning animals in general; Training or exercising equipment; Covering boxes
    • A01K15/02—Training or exercising equipment, e.g. mazes or labyrinths for animals ; Electric shock devices ; Toys specially adapted for animals
    • A01K15/025—Toys specially adapted for animals
    • A01K15/026—Chewable toys, e.g. for dental care of pets
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/30—Low-molecular-weight compounds
    • C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
    • C08G18/3203—Polyhydroxy compounds
    • C08G18/3206—Polyhydroxy compounds aliphatic
    • C—CHEMISTRY; METALLURGY
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    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
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    • C08G18/3271—Hydroxyamines
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    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
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    • C08G18/30—Low-molecular-weight compounds
    • C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
    • C08G18/3271—Hydroxyamines
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    • C08G18/40—High-molecular-weight compounds
    • C08G18/4009—Two or more macromolecular compounds not provided for in one single group of groups C08G18/42 - C08G18/64
    • C08G18/4018—Mixtures of compounds of group C08G18/42 with compounds of group C08G18/48
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    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
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    • C08G18/40—High-molecular-weight compounds
    • C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
    • C08G18/4236—Polycondensates having carboxylic or carbonic ester groups in the main chain containing only aliphatic groups
    • C08G18/4238—Polycondensates having carboxylic or carbonic ester groups in the main chain containing only aliphatic groups derived from dicarboxylic acids and dialcohols
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
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    • C08G18/40—High-molecular-weight compounds
    • C08G18/48—Polyethers
    • C08G18/4825—Polyethers containing two hydroxy groups
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
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    • C08G18/40—High-molecular-weight compounds
    • C08G18/48—Polyethers
    • C08G18/4829—Polyethers containing at least three hydroxy groups
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
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    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/63—Block or graft polymers obtained by polymerising compounds having carbon-to-carbon double bonds on to polymers
    • C08G18/631—Block or graft polymers obtained by polymerising compounds having carbon-to-carbon double bonds on to polymers onto polyesters and/or polycarbonates
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
    • C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
    • C08G18/6603—Compounds of groups C08G18/42, C08G18/48, or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
    • C08G18/6614—Compounds of groups C08G18/42, C08G18/48, or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3225 or C08G18/3271 and/or polyamines of C08G18/38
    • C08G18/6622—Compounds of groups C08G18/42, C08G18/48, or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3225 or C08G18/3271 and/or polyamines of C08G18/38 with compounds of group C08G18/3271
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
    • C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
    • C08G18/6633—Compounds of group C08G18/42
    • C08G18/6637—Compounds of group C08G18/42 with compounds of group C08G18/32 or polyamines of C08G18/38
    • C08G18/664—Compounds of group C08G18/42 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203
    • C08G18/6644—Compounds of group C08G18/42 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203 having at least three hydroxy groups
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    • C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
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    • C08G18/7664—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups
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    • C08G2110/0083—Foam properties prepared using water as the sole blowing agent

Abstract

The invention belongs to the technical field of polyurethane application, and particularly relates to a polyurethane microporous elastomer composite material applied to a pet dog bite stick and a preparation method thereof. The component A consists of polyester polyol 1, polymer polyester polyol, a chain extender, a cross-linking agent, a foaming agent and a surfactant; the component B consists of polyester polyol 2, polyether polyol and isocyanate; the component C is a catalyst. The polyurethane microporous elastomer composite material applied to the pet dog biting stick is safe, environment-friendly, good in fluidity and less in bubbles on the surface of a product; the prepared pet dog biting stick is resistant to bite, light and wear-resistant, and the product retention rate is high; the preparation method is simple, high-temperature vulcanization is not needed, and energy conservation and consumption reduction are achieved.

Description

Polyurethane microporous elastomer composite material applied to pet dog bite stick and preparation method thereof
Technical Field
The invention belongs to the technical field of polyurethane application, and particularly relates to a polyurethane microporous elastomer composite material applied to a pet dog bite stick and a preparation method thereof.
Background
With the continued development of the economy, more and more families are beginning to feed pets, with pet dogs in large numbers. These families are no longer meeting the single requirements of a full pet and the physical and mental health of the pet is getting more and more attention. At present, people reach and alleviate its boring, discontented mood through the mode that provides the toy for the pet dog, realize efficiency such as molars clean teeth.
The dog biting stick is a pet toy which is shaped like a bone, a wooden stick and the like. Because the dog has the preference of biting the bone, the designed shape is also suitable for the characteristics of playing of the dog. In addition, the chewing stick for the pet dog can clean chews in the oral cavity of the pet dog, and the pet dog can effectively remove dental plaque and inhibit the generation of tartar and stains and the generation of breath smell when chewing. If often chewed, can slow down the formation of plaque and tartar.
At present, pet toys are basically made of silicon rubber, and the pet often bites the toys in the playing process to cause the damage of the toys. The silicon rubber materials do not have enough structural stress of the product, so that the toy can not be chewed for a long time, and the functions of accompanying a pet and grinding teeth and cleaning teeth are realized. Accordingly, there is a need to develop a pet chew that is both long lasting and durable for a pet dog.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: overcomes the defects of the prior art and provides a polyurethane microporous elastomer composite material applied to a pet dog biting stick. The composite material is safe, environment-friendly and good in fluidity, and the prepared pet dog biting stick is resistant to biting, light and wear-resistant, and the product retention rate is high; the invention also provides a preparation method thereof.
The invention relates to a polyurethane microporous elastomer composite material applied to a pet dog bite stick, which consists of A, B and a component C; the raw materials comprise the following components in parts by weight:
the component A comprises:
Figure BDA0002335041890000011
and B component:
220-40 parts of polyester polyol
10-20 parts of polyether polyol
55-70 parts of isocyanate;
the component C is a catalyst.
Wherein:
the polyester polyol 1 of the component A is one of polyester polyols which are prepared by one or more of ethylene glycol, diethylene glycol, 1, 3-propanediol or 1, 4-butanediol and adipic acid through esterification and polycondensation reaction, have the functionality of 2, the number average molecular weight of 1500-2000 and the acid value of 0.1-0.4mgKOH/g, and are preferably one of CMA-254, MX-706 (commercially available, Nicotina Hua chemical industry Co., Ltd.), HR-254 or EP62 (commercially available, Xin Hua scientific and technology Co., Ltd., Tex.).
The polymer polyester polyol of the component A is polymer polyester polyol which is synthesized by taking one or two of acrylonitrile or styrene as a vinyl monomer, taking azobisisobutyronitrile or benzoyl peroxide as an initiator and carrying out free radical initiated activation chain addition reaction with the polyester polyol 1, has the solid content of 15-35 percent, the hydroxyl value of 56-75mg KOH/g and the viscosity of 60 ℃ of 1500-3000mpa.s, and is high in stability and dispersion.
Preferably, the synthesis method of the polymer polyester polyol of the component A comprises the following steps: stirring and heating one or more of ethylene glycol, diethylene glycol, 1, 3-propylene glycol or 1, 4-butanediol, adding adipic acid and tetrabutyl titanate serving as a catalyst, and performing high-temperature dehydration esterification polycondensation to generate polyester polyol 1; then one or two of acrylonitrile or styrene is taken as vinyl monomer, azodiisobutyronitrile or benzoyl peroxide is taken as initiator, and is dripped into a stirring reactor with dispersant (synthesis of maleic anhydride) and part of polyester polyol 1 to react for 4 to 5 hours at the temperature of 120-150 ℃, and then the vacuum pumping is less than or equal to-0.098 Mpa until unreacted monomer is removed, thus obtaining the polymer polyester polyol.
The chain extender is one or more of ethylene glycol, diethylene glycol, 1, 4-butanediol or 1, 3-propanediol.
The cross-linking agent is one or more of glycerol, diethanolamine or triethanolamine.
The foaming agent is H2O。
The surfactant is a polysiloxane-alkylene oxide block copolymer, preferably one or more of L-1500 (commercially available, Michigan advanced materials), DC3042 or DC-193 (commercially available, US air chemical).
The polyester polyol 2 in the component B is the polyester polyol 2 which is prepared by one or more of ethylene glycol, diethylene glycol, 1, 3-propanediol or 1, 4-butanediol and adipic acid through esterification and polycondensation reaction, has the functionality of 2, the number average molecular weight of 2000-2500 and the acid value of 0.1-0.3 mgKOH/g; preferably CMA-244, MX-44 (commercially available, Nicotina chemical industries, Inc.) or HR-244 (commercially available, Xin Huarun science and technology, Inc., Tex.).
The polyether polyol has a functionality of 2 or 3 and a number average molecular weight of 4000-; one or more of ED-28, EP-3600 or EP-330NG (commercially available, Shandong Lanxingdong chemical Co., Ltd.) are preferred.
The isocyanate is one or two of carbodiimide modified MDI or 4, 4-diphenylmethane diisocyanate, preferably one or two of MDI-100 (commercially available, Vanhua chemical), 44C (commercially available, Bayer) or 103C (commercially available, BASF).
The component C is a catalyst, the mass of the component C is 0.5-1.5% of the total mass of the component A, and the component C is formed by mixing 30-40 wt% of triethylene diamine and 60-70 wt% of ethylene glycol.
The invention relates to a preparation method of a polyurethane microporous elastomer composite material applied to a pet dog bite stick, which comprises the following steps:
(1) putting polyester polyol 1 and polymer polyester polyol into a reaction kettle, stirring, adding a chain extender, a cross-linking agent, a surfactant and a foaming agent in a certain amount, fully stirring for 2-4 hours at 50-60 ℃, discharging materials after the materials are qualified, and sealing and storing to obtain a component A;
(2) sequentially adding polyester polyol 2 and polyether polyol into a reaction kettle, uniformly stirring, cooling to 35-55 ℃, adding metered isocyanate, heating to 70-90 ℃, reacting for 2-3 hours, cooling to 30-45 ℃ after passing detection, barreling, and sealing and storing with nitrogen to obtain a component B;
(3) when in use, the component C is firstly added into the component A and uniformly mixed, then the mixture and the component B are respectively injected into a charging bucket of a low-pressure casting machine, the mixture of the component A and the component C and the material temperature of the component B are kept at 45-55 ℃, and the components are mixed according to the ratio of A: b is 100: 80-120, injecting into a mold with the mold temperature of 40-50 ℃, and opening the mold for 6-10 minutes to obtain the product.
Compared with the prior art, the invention has the following beneficial effects:
(1) the polyurethane microporous elastomer composite material applied to the pet dog biting stick is safe and environment-friendly, good in fluidity and less in bubbles on the surface of a product, and the prepared pet dog biting stick is resistant to biting, light in weight, wear-resistant and high in product retention rate.
(2) The preparation method of the polyurethane microporous elastomer composite material applied to the pet dog bite stick is simple and easy to implement, does not need high-temperature vulcanization, and is energy-saving and consumption-reducing.
Detailed Description
The present invention is further described below with reference to examples.
The polyester polyol 1CMA-254 manufacturer is Citizen Daihuazai chemical industries, Inc., with a functionality of 2 and a number average molecular weight of 2000.
The polyester polyol 1MX-706 was manufactured by Citsuba chemical industries, Inc., and had a functionality of 2 and a number average molecular weight of 2000.
The polyester polyol 1HR-254 was manufactured by Xin Huarun science and technology, Inc. of Texas having a functionality of 2 and a number average molecular weight of 2000.
The polyester polyol 1EP62 was manufactured by Xin Huarun science, Inc. of Texas having a functionality of 2 and a number average molecular weight of 2000.
The polyester polyol 2CMA-244 manufacturer is Citizen Daihuai chemical industries, Inc., with a functionality of 2 and a number average molecular weight of 2000.
The polyester polyol 2MX-44 manufacturer is Citizen Daihuazai chemical industry Co., Ltd, and has a functionality of 2 and a number average molecular weight of 2200.
The polyester polyol 2HR-244 was manufactured by Xin Huarun science, Inc. of Texas having a functionality of 2 and a number average molecular weight of 2100.
The polyether polyol ED-28 is produced by Dow chemical engineering, Inc. of Shandong Lanxingdong, and has a functionality of 2 and a number average molecular weight of 4000.
The polyether polyol EP-3600 is a Dow chemical company, with functionality of 3 and number average molecular weight of 6000.
The polyether polyol EP-330NG manufacturer is Shandong Lanxingdong chemical industry, Limited liability company, the functionality is 3, and the number average molecular weight is 5000.
Example 1
The polyurethane microporous elastomer composite material applied to the pet dog bite stick in the embodiment 1 consists of A, B and a component C; the raw materials comprise the following components in parts by weight:
the component A comprises:
Figure BDA0002335041890000041
and B component:
CMA-244 25Kg
EP-3600 15Kg
MDI-100 65Kg；
the component C is a catalyst, and the addition amount of the component C accounts for 1.0 percent of the total mass of the component A.
0.33Kg of triethylene diamine
Ethylene glycol 0.77 Kg.
Wherein: the polymer polyester polyol has the solid content of 25 percent by mass, the hydroxyl value of 58mg KOH/g and the viscosity of 1900mpa.s at 60 ℃.
The preparation method of the polyurethane microporous elastomer composite material applied to the pet dog bite stick in the embodiment 1 comprises the following steps:
(1) weighing CMA-25473 Kg, polymer polyester polyol 27Kg, ethylene glycol 5Kg, 1, 4-butanediol 2Kg, glycerol 1Kg, DC193 0.3Kg, H2O is 1.4 Kg. Adding the weighed CMA-254 and polymer polyester polyol into a reaction kettle, stirring, and then respectively adding accurately metered ethylene glycol, 1, 4-butanediol, glycerol, DC193 and H2And O, fully stirring for 3 hours at 55 ℃, barreling after the inspection is qualified, and sealing and storing to obtain the component A.
(2) Sequentially adding CMA-24425 Kg and EP-360015Kg into a reaction kettle, cooling to 40 ℃, adding 65Kg of metered MDI-100, heating to 90 ℃, reacting for 3.0 hours, cooling to 40 ℃ after passing the detection, barreling, and sealing to obtain the component B.
(3) When the composition is used, the component C is added into the component A according to the proportion of 1% of the component A and is uniformly mixed, the prepared component A/C and the component B are respectively injected into a material tank of a low-pressure casting machine, the mixture is heated to 45 ℃, and the components are mixed according to the proportion of A: b is 100: 82, injecting the mixture into a mold with the mold temperature of 45 ℃ after the mixture is quickly mixed to be uniform, and opening the mold for 8 minutes to obtain the product.
Example 2
The polyurethane microporous elastomer composite material applied to the pet dog bite stick in the embodiment 2 consists of A, B and a component C; the raw materials comprise the following components in parts by weight:
the component A comprises:
Figure BDA0002335041890000051
and B component:
Figure BDA0002335041890000052
the component C is a catalyst, and the addition amount of the component C accounts for 1.5 percent of the total mass of the component A.
0.70Kg of triethylene diamine
1.06Kg of ethylene glycol.
Wherein: the polymer polyester polyol has the solid content of 30 percent by mass, the hydroxyl value of 56mg KOH/g and the viscosity of 2500mpa.s at 60 ℃.
The preparation method of the polyurethane microporous elastomer composite material applied to the pet dog bite stick in the embodiment 2 comprises the following steps:
(1) 90Kg of EP62, 10Kg of polymer polyester polyol, 14Kg of ethylene glycol, 1.5Kg of diethanolamine, 0.5Kg of L-1500, and H were weighed respectively2O is 1.2 Kg. Putting the weighed EP62 and the polymer polyester polyol into a reaction kettle, stirring, and then respectively putting the ethylene glycol, the diethanol amine, the L-1500 and the H with accurate measurement2And O, fully stirring for 2 hours at 50 ℃, discharging and barreling after the materials are qualified, and sealing and storing to obtain the component A.
(2) Sequentially putting 30Kg of CMA-244 and 20Kg of EP-330NG into a reaction kettle, cooling to 40 ℃, adding 55Kg of 44C and 15Kg of 103C, heating to 85 ℃, reacting for 2.5 hours, cooling to 40 ℃ after passing detection, barreling, and sealing to store as the component B.
(3) When the composition is used, the component C is added into the component A according to the proportion of 1.5 percent of the component A and is uniformly mixed, then the prepared A/C mixed component and the component B are respectively injected into a charging bucket of a low-pressure casting machine, the mixture is heated to 45 ℃, and the components are mixed according to the proportion of A: b is 100: 117, then injecting the mixture into a mold with the mold temperature of 45 ℃, and opening the mold after 6.0 minutes to obtain the product.
Example 3
The polyurethane microporous elastomer composite material applied to the pet dog bite stick in the embodiment 3 is composed of A, B and a component C; the raw materials comprise the following components in parts by weight:
the component A comprises:
Figure BDA0002335041890000061
and B component:
HR-244 27Kg
ED-28 16Kg
MDI-100 68Kg；
the component C is a catalyst, and the addition amount of the component C is 0.5 percent of the total mass of the component A.
Triethylene diamine 0.17Kg
0.42Kg of ethylene glycol.
Wherein: the polymer polyester polyol has the solid content of 15 percent by mass, the hydroxyl value of 75mg KOH/g and the viscosity of 1500mpa.s at 60 ℃.
The preparation method of the polyurethane microporous elastomer composite material applied to the pet dog bite stick in the embodiment 3 comprises the following steps:
(1) HR-254, 20Kg, 10Kg, 5Kg, 0.3Kg, 0.5Kg, H and 193 Kg, respectively, of the polymer polyester polyol, propylene glycol, DC3042, and H2O is 0.8 Kg. Putting weighed HR-254 and polymer polyester polyol into a reaction kettle, stirring, and then respectively putting accurately metered ethylene glycol, propylene glycol, DC193, DC3042 and H2And O, fully stirring for 3 hours at 50 ℃, discharging and barreling after the materials are qualified, and sealing and storing to obtain the component A.
(2) And (3) sequentially putting 27Kg of HR-244 and 16Kg of ED-28 into a reaction kettle, cooling to 40 ℃, adding 68Kg of metered MDI-100, heating to 90 ℃, reacting for 3.0 hours, cooling to 40 ℃ after sampling and detecting are qualified, and barreling and warehousing to obtain the component B.
(3) When in use, the component C is added into the component A according to the proportion of 0.5 percent of the component A and is uniformly mixed, the prepared A/C mixed component and the component B are respectively injected into a charging bucket of a low-pressure casting machine, the mixture is heated to 45 ℃, and the components are mixed according to the proportion of A: b is 100: 103, mechanically mixing until uniform, injecting into a mold with a mold temperature of 45 ℃, and opening the mold for 10 minutes to obtain the product.
Example 4
The polyurethane microporous elastomer composite material applied to the pet dog bite stick in the embodiment 4 consists of A, B and a component C; the raw materials comprise the following components in parts by weight:
the component A comprises:
Figure BDA0002335041890000071
and B component:
Figure BDA0002335041890000072
the component C is a catalyst, and the addition amount of the component C accounts for 1.2 percent of the total mass of the component A.
0.42Kg of triethylene diamine
0.99Kg of ethylene glycol.
Wherein: the polymer polyester polyol has the solid content of 28 percent by mass, the hydroxyl value of 60mg KOH/g and the viscosity of 2200mpa.s at 60 ℃.
The preparation method of the polyurethane microporous elastomer composite material applied to the pet dog bite stick in the embodiment 4 comprises the following steps:
(1) 88Kg of MX-706, 12Kg of polymer polyester polyol, 9Kg of ethylene glycol, 5Kg of diethylene glycol, 1.5Kg of triethanolamine, 0.4Kg of DC193, 0.6Kg of L-1500, and H were weighed respectively2O is 0.7 Kg. The weighed MX-706 and polymer polyester polyol are put into a reaction kettle to be stirred, and then the weighed ethylene glycol, diethylene glycol, triethanolamine, DC193, L-1500 and H are respectively put into the reaction kettle2And O, fully stirring for 3 hours at 50 ℃, discharging and barreling after the materials are qualified, and sealing and storing to obtain the component A.
(2) And sequentially putting 35Kg of CMA-244 and 18Kg of ED-28 into a reaction kettle, cooling to 40 ℃, adding 52Kg of MDI-100 and 15Kg of MDI-103 to react for 3.0 hours at 80 ℃, cooling to 40 ℃ after the detection is qualified, barreling, and sealing for storage to obtain the component B.
(3) When in use, the catalyst of the component C is added into the component A according to the proportion of 1.2 percent of the component A and is uniformly mixed, the prepared A/C mixed component and the component B are respectively injected into a charging bucket of a low-pressure casting machine, the mixture is heated to 45 ℃, and the components are mixed according to the proportion of A: b is 100: 95, injecting the mixture into a mold with the mold temperature of 45 ℃ after mechanically mixing the mixture evenly, and opening the mold for 7 minutes to obtain the product.
The physical properties of the pet dog bite sticks obtained in examples 1-4 were specifically analyzed as shown in Table 1:
TABLE 1 summary of performance data obtained for pet dog bite sticks from examples 1-4
Item Example 1 Example 2 Example 3 Example 4
Density of the product (kg/m)3) 274 310 330 360
Tensile Strength (MPa) 2.91 3.13 3.35 3.45
Tear Strength (N/cm) 20 23 24 25
Elongation (%) 283 299 315 330
Product retention (%) 0.98 0.98 0.99 0.995
Hardness (A) 60 75 70 65
Appearance of the article Slight air bubbles on the surface The surface has no bubble Beautiful surface Beautiful surface
Note: (1) the performance data for the pet dog bite stick from examples 1-4 above are the results of testing 6mm thick coupons.
(2) Pet dog stick-biting mold-opening V for product retention rate1After being placed for 30 days in a room temperature environment, the mixture is subjected to V2Expressed as a percentage of volume change, V2/V1A larger value indicates a better retention of the article and a less deformation.

Claims (9)

1. The utility model provides a be applied to polyurethane micropore elastomer combined material that pet dog bitted stick which characterized in that: consists of A, B and C components; the raw materials comprise the following components in parts by weight:
the component A comprises:
Figure FDA0002335041880000011
and B component:
220-40 parts of polyester polyol
10-20 parts of polyether polyol
55-70 parts of isocyanate;
the component C is a catalyst.
2. The polyurethane microcellular elastomer composition for a pet dog bite stick according to claim 1, wherein: the polyester polyol 1 of the component A is polyester polyol which is prepared by one or more of ethylene glycol, diethylene glycol, 1, 3-propanediol or 1, 4-butanediol and adipic acid through esterification and polycondensation reaction, has the functionality of 2, the number average molecular weight of 1500-2000 and the acid value of 0.1-0.4 mgKOH/g.
3. The polyurethane microcellular elastomer composition for a pet dog bite stick according to claim 1, wherein: the polymer polyester polyol of the component A is polymer polyester polyol which is synthesized by taking one or two of acrylonitrile or styrene as a vinyl monomer, taking azobisisobutyronitrile or benzoyl peroxide as an initiator and carrying out chain addition reaction activated by free radical initiation with polyester polyol 1, wherein the mass fraction of the solid content is 15-35%, the hydroxyl value is 56-75mg KOH/g, and the viscosity at 60 ℃ is 1500-3000 mpa.s.
4. The polyurethane microcellular elastomer composition for a pet dog bite stick according to claim 1, wherein: the chain extender is one or more of ethylene glycol, diethylene glycol, 1, 4-butanediol or 1, 3-propanediol.
5. The polyurethane microcellular elastomer composition for a pet dog bite stick according to claim 1, wherein: the cross-linking agent is one or more of glycerol, diethanolamine or triethanolamine; the foaming agent is H2O。
6. The polyurethane microcellular elastomer composition for a pet dog bite stick according to claim 1, wherein: the surfactant is a polysiloxane-alkylene oxide block copolymer.
7. The polyurethane microcellular elastomer composition for a pet dog bite stick according to claim 1, wherein: the polyester polyol 2 in the component B is the polyester polyol 2 which is prepared by one or more of ethylene glycol, diethylene glycol, 1, 3-propanediol or 1, 4-butanediol and adipic acid through esterification and polycondensation reaction, has the functionality of 2, the number average molecular weight of 2000-2500 and the acid value of 0.1-0.3 mgKOH/g; the polyether polyol has the functionality of 2 or 3 and the number average molecular weight of 4000-; the isocyanate is one or two of carbodiimide modified MDI or 4, 4-diphenylmethane diisocyanate.
8. The polyurethane microcellular elastomer composition for a pet dog bite stick according to claim 1, wherein: the component C is a catalyst, the mass of the component C is 0.5-1.5% of the total mass of the component A, and the component C is formed by mixing 30-40 wt% of triethylene diamine and 60-70 wt% of ethylene glycol.
9. A method for preparing the polyurethane microporous elastomer composite material applied to the pet dog bite stick according to claim 1, which is characterized in that: the method comprises the following steps:
(1) putting polyester polyol 1 and polymer polyester polyol into a reaction kettle, stirring, adding a chain extender, a cross-linking agent, a surfactant and a foaming agent in a certain amount, stirring for 2-4 hours at 50-60 ℃, discharging after the materials are qualified, and sealing and storing to obtain a component A;
(2) sequentially adding polyester polyol 2 and polyether polyol into a reaction kettle, stirring, cooling to 35-55 ℃, adding metered isocyanate, heating to 70-90 ℃, reacting for 2-3 hours, cooling to 30-45 ℃ after passing detection, barreling, and storing in a nitrogen seal manner to obtain a component B;
(3) when in use, the component C is firstly added into the component A to be mixed, then the mixture and the component B are respectively injected into a charging bucket of a low-pressure casting machine, the mixture of the component A and the component C and the material temperature of the component B are kept at 45-55 ℃, and the weight ratio of the component C to the component B is calculated according to the weight ratio of the component A to the component B: b is 100: 80-120, injecting into a mold with the mold temperature of 40-50 ℃, and opening the mold for 6-10 minutes to obtain the product.
CN201911352681.7A 2019-12-25 2019-12-25 Polyurethane microporous elastomer composite material applied to pet dog bite stick and preparation method thereof Withdrawn CN111040124A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112225869A (en) * 2020-10-14 2021-01-15 广德祥源新材科技有限公司 Polyurethane microporous foam with uniform pore diameter and preparation method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112225869A (en) * 2020-10-14 2021-01-15 广德祥源新材科技有限公司 Polyurethane microporous foam with uniform pore diameter and preparation method thereof

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