CN111087700A - Mute heat-insulation slow-resilience rubber and plastic and preparation method thereof - Google Patents
Mute heat-insulation slow-resilience rubber and plastic and preparation method thereof Download PDFInfo
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- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
- C08J9/10—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
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- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0061—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof characterized by the use of several polymeric components
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- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/10—Homopolymers or copolymers of propene
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- C08J2407/00—Characterised by the use of natural rubber
- C08J2407/02—Latex
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- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2423/04—Homopolymers or copolymers of ethene
- C08J2423/08—Copolymers of ethene
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Abstract
The invention relates to a mute heat insulation slow-rebound rubber and plastic, which comprises the following raw materials: low-density polypropylene, ethylene-octene copolymer, natural latex, vulcanizing agent, filler talcum powder, reinforcing agent, accelerator, activator, dispersing agent, foaming agent, anti-aging agent, sodium silicofluoride and paraffin. Through the addition of the latex raw materials, the latex has the characteristics of excellent resilience, support property, shock absorption and compression fatigue resistance, so that the prepared plastic foaming sponge has the rubber characteristic, has the plastic toughness, flexibility resistance and tearing strength resistance, and has good flexibility, ultrahigh resilience and creep resistance.
Description
Technical Field
The invention relates to the technical field of rubber and plastic foam sponges, and particularly relates to a mute heat-insulation slow-resilience rubber and plastic and a preparation method thereof.
Background
The rubber-plastic sponge is a closed-cell material, has the advantages of low density, good elasticity, small compression permanent deformation and the like, and is widely applied to the fields of automobiles, shoe materials, furniture, building materials and the like.
The common rubber and plastic products have higher pressure intensity, insufficient flexibility, high resilience, high hole closing rate and good heat insulation effect, but are easy to be permanently damaged under the impact of external force, and the sound absorption and shock absorption effects are poor.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a mute heat-insulation slow-rebound rubber and plastic which has small rebound force and can absorb sound and absorb shock and a preparation method thereof.
In order to achieve the purpose, the invention provides the following technical scheme: a mute heat-insulation slow-resilience rubber plastic comprises the following raw materials in parts by weight: 60-80 parts of low-density polypropylene, 20-40 parts of ethylene-octene copolymer, 20-30 parts of natural latex, 2-5 parts of vulcanizing agent, 10-15 parts of filler talcum powder, 4-7 parts of reinforcing agent, 1-3.5 parts of accelerator, 0.5-1 part of activator, 2-3 parts of dispersant, 10-13 parts of foaming agent, 10760.5-1.5 parts of anti-aging agent, 0.5-3 parts of sodium silicofluoride and 2-3 parts of paraffin, wherein the foaming agent is a high-temperature foaming agent AC and a low-temperature foaming agent ACP which are mixed according to the weight part ratio of 11: 1.
The preferred vulcanizing agent is S-80 sulfur masterbatch.
The preferable reinforcing agent is heavy calcium carbonate and carbon black with the weight part ratio of 1: 1.
The preferable accelerant is zinc dimethyldithiocarbamate and di-o-tolylguanidine with the weight part ratio of 4: 1.
Preferably, the active agent is zinc oxide.
A preparation method of a mute heat-insulation slow-rebound rubber comprises the following steps:
1) firstly, putting low-density polypropylene, ethylene-octene copolymer, talcum powder, dispersant and paraffin into a plastic internal mixer, adding high-temperature foaming agent AC, reinforcing agent and activator when the internal mixing temperature is raised to 116 ℃, carrying out internal mixing for 5-10min, then discharging, cooling and tabletting to prepare a film, and standing for 48h for later use;
2) pouring the rubber sheet obtained in the step (1) into an internal mixer internal mixing chamber, sequentially pouring natural rubber latex, a vulcanizing agent, a low-temperature foaming agent, an accelerator, sodium silicofluoride and an anti-aging agent, carrying out internal mixing for 15min at 90 ℃, slightly foaming by stirring to obtain a foaming rubber, and discharging;
3) putting the mixture into an open mill, and then mixing for 10-20min, wherein the mixing temperature is controlled at 80-95 ℃;
4) feeding the foaming material mixture obtained in the step (3) into an extruder, and extruding under the process condition that the temperature of the extruder is 80-100 ℃ to obtain molding glue;
5) foaming and forming: adopting an oven for secondary foaming and vulcanization molding, preheating the oven to 150-160 ℃, putting the molding rubber into the oven for heating for 10-15min, and obtaining porous slow-resilience rubber and plastic;
6) and (5) cutting the rubber plastic material prepared in the step (5), and extruding and breaking the hole to obtain the mute shock-absorbing heat-insulating slow-resilience rubber plastic.
A preparation method of a mute heat-insulation slow-rebound rubber and plastic is characterized by comprising the following steps:
1) firstly, putting low-density polypropylene, ethylene-octene copolymer, talcum powder, dispersant and paraffin into a plastic internal mixer, adding high-temperature foaming agent AC, reinforcing agent and activator when the internal mixing temperature is raised to 116 ℃, discharging after internal mixing for 5-10min, cooling within 0.2s, instantly tabletting until the thickness is 60% of the discharge thickness to prepare a film, and standing for 48h for later use;
2) pouring the rubber sheet obtained in the step (1) into an internal mixer, sequentially pouring natural rubber latex, a vulcanizing agent, a low-temperature foaming agent, an accelerator, sodium silicofluoride and an anti-aging agent, carrying out internal mixing for 15min when the internal mixing temperature is raised to 90 ℃, stirring for slight foaming to obtain foamed rubber, and discharging;
3) putting the mixture into an open mill, and then mixing for 10-20min, wherein the mixing temperature is controlled at 80-95 ℃;
4) feeding the foaming material mixture obtained in the step (3) into an extruder, and extruding under the process condition that the temperature of the extruder is 80-100 ℃ to obtain molding glue;
5) foaming and forming: adopting an oven for secondary foaming and vulcanization molding, preheating the oven to 150-160 ℃, putting the molding rubber into the oven for heating for 10-15min, and obtaining porous slow-resilience rubber and plastic;
6) and (3) cutting the rubber and plastic material prepared in the step (5), and instantly extruding the cut rubber and plastic material to 60 percent, 50 percent and 40 percent of the thickness in 0.2s for three times each time to break holes, thus obtaining the mute shock-absorbing heat-insulating slow-rebound rubber and plastic.
The invention has the beneficial effects that: possesses that the indentation hardness is little, and is flexible good, and the resilience force is little, and it is slow to reply after the pressurized, and tear strength is big, and the percent opening is high, has sound absorption and inhale the shake effect simultaneously.
Compared with the prior art, the preparation method has the following beneficial effects:
1. the foaming is carried out firstly, the cracking and standing are carried out to achieve the performance of opening, then the banburying and high-temperature foaming are carried out, the hole is broken through extrusion, the opening rate is further improved, and the purposes of sound absorption and shock absorption are achieved.
2. By adding the natural latex, the prepared foaming rubber and plastic has the advantages of small indentation hardness, good flexibility, nearly zero resilience force and slow recovery after being pressed.
3. Through twice banburying, mixing and foaming of the ethylene-octene copolymer and the polypropylene, a certain gel rate is generated, the crosslinking degree of the material is increased, the uniformity between the two phases is improved, and the physical properties of the material are improved.
According to the invention, the banburying high-temperature foaming is subjected to preliminary tabletting, extruding and hole breaking at an instantaneous thickness of 60%, and then is subjected to three-time instantaneous extrusion at an instantaneous thickness of 60%, 50% and 40% for hole breaking by using finally vulcanized and baked rubber and plastic, so that the hole breaking rate can reach more than 55%, the sound absorption effect is improved by 30% compared with that of closed-hole rubber and plastic, and the anti-seismic performance is excellent.
Detailed Description
The invention provides specific embodiments as follows:
a preparation method of a mute heat-insulation slow-resilience rubber plastic comprises the following raw materials in parts by weight: 60-80 parts of low-density polypropylene, 20-40 parts of ethylene-octene copolymer, 20-30 parts of natural latex, 2-5 parts of vulcanizing agent, 10-15 parts of filler talcum powder, 4-7 parts of reinforcing agent, 1-3.5 parts of accelerator, 0.5-1 part of activator, 2-3 parts of dispersant, 10-13 parts of foaming agent, 10760.5-1.5 parts of anti-aging agent, 0.5-3 parts of sodium silicofluoride and 2-3 parts of paraffin, wherein the vulcanizing agent is S-80 sulfur masterbatch particles, the reinforcing agent is ground calcium carbonate and carbon black 1:1, the accelerator is zinc dimethyldithiocarbamate and di-o-tolylguanidine 2:0.5, the activator is zinc oxide, and the foaming agent is high-temperature foaming agent AC and low-temperature foaming agent ACP11: 1.
Example 1:
a preparation method of a mute heat-insulation slow-rebound rubber comprises the following steps:
1) firstly, putting 60 parts of low-density polypropylene, 20 parts of ethylene-octene copolymer, 15 parts of talcum powder, 2 parts of dispersant and 2 parts of paraffin into a plastic internal mixer, adding high-temperature foaming agent AC10 parts, 3 parts of calcium carbonate, 3 parts of carbon black and 1 part of zinc oxide when the internal mixing temperature is raised to 116 ℃, carrying out internal mixing for 5-10min, discharging, cooling and tabletting to prepare a film, and standing for 48h for later use;
2) pouring the rubber sheet obtained in the step (1) into an internal mixer internal mixing chamber, sequentially pouring 20 parts of natural latex, 20 parts of vulcanizing agent S-802 parts, 0.9 part of low-temperature foaming agent, 2 parts of zinc dimethyldithiocarbamate, 0.5 part of di-o-tolylguanidine, 0.5 part of sodium silicofluoride and 1.5 parts of anti-aging agent, internally mixing to 90 ℃ for about 15min, stirring for slight foaming to obtain foamed rubber, and discharging;
3) putting the mixture into an open mill, and then mixing for 10-20min, wherein the mixing temperature is controlled at 80-95 ℃;
4) feeding the foaming material mixture obtained in the step (3) into an extruder, and extruding under the process condition that the temperature of the extruder is 80-100 ℃ to obtain molding glue;
5) foaming and forming: adopting an oven for secondary foaming and vulcanization molding, preheating the oven to 160 ℃, and then putting the molding rubber into the oven to heat for 15min to obtain porous slow-resilience rubber and plastic;
6) and (5) cutting the rubber plastic material prepared in the step (5), and extruding and breaking the hole to obtain the mute shock-absorbing heat-insulating slow-resilience rubber plastic.
Example 2:
a preparation method of a mute heat-insulation slow-rebound rubber comprises the following steps:
1) firstly, putting 60 parts of low-density polypropylene, 25 parts of ethylene-octene copolymer, 15 parts of talcum powder, 2 parts of dispersant and 2 parts of paraffin into a plastic internal mixer, adding high-temperature foaming agent AC11 parts, 3 parts of calcium carbonate, 3 parts of carbon black and 1 part of zinc oxide when the internal mixing temperature is raised to 116 ℃, carrying out internal mixing for 5-10min, discharging, cooling and tabletting to prepare a film, and standing for 48h for later use;
2) pouring the rubber sheet obtained in the step (1) into an internal mixer, sequentially pouring 20 parts of natural latex, S-802 parts of vulcanizing agent, 1 parts of low-temperature foaming agent ACP, 2 parts of zinc dimethyldithiocarbamate, 0.5 part of di-o-tolylguanidine, 0.5 part of sodium silicofluoride and 1.5 parts of anti-aging agent, internally mixing to 90 ℃ for about 15min, stirring for slight foaming to obtain foamed rubber, and discharging;
3) putting the mixture into an open mill, and then mixing for 10-20min, wherein the mixing temperature is controlled at 80-95 ℃;
4) feeding the foaming material mixture obtained in the step (3) into an extruder, and extruding under the process condition that the temperature of the extruder is 80-100 ℃ to obtain molding glue;
5) foaming and forming: adopting an oven for secondary foaming and vulcanization molding, preheating the oven to 160 ℃, and then putting the molding rubber into the oven to heat for 15min to obtain porous slow-resilience rubber and plastic;
6) and (5) cutting the rubber plastic material prepared in the step (5), and extruding and breaking the hole to obtain the mute shock-absorbing heat-insulating slow-resilience rubber plastic.
Example 3:
a preparation method of a mute heat-insulation slow-rebound rubber comprises the following steps:
1) firstly, putting 60 parts of low-density polypropylene, 25 parts of ethylene-octene copolymer, 15 parts of talcum powder, 2 parts of dispersant and 2 parts of paraffin into a plastic internal mixer, adding high-temperature foaming agent AC11 parts, 3 parts of calcium carbonate, 3 parts of carbon black and 1 part of zinc oxide when the internal mixing temperature is raised to 116 ℃, carrying out internal mixing for 5-10min, discharging, cooling and tabletting to prepare a film, and standing for 48h for later use;
2) pouring the rubber sheet obtained in the step (1) into an internal mixer, sequentially pouring 25 parts of natural rubber latex, 25 parts of vulcanizing agent S-802 parts, 1 part of low-temperature foaming agent ACP, 2 parts of zinc dimethyldithiocarbamate, 0.5 part of di-o-tolylguanidine, 0.5 part of sodium silicofluoride and 1.5 parts of anti-aging agent, internally mixing to 90 ℃ for about 15min, stirring for slight foaming to obtain foamed rubber, and discharging;
3) putting the mixture into an open mill, and then mixing for 10-20min, wherein the mixing temperature is controlled at 80-95 ℃;
4) feeding the foaming material mixture obtained in the step (3) into an extruder, and extruding under the process condition that the temperature of the extruder is 80-100 ℃ to obtain molding glue;
5) foaming and forming: adopting an oven for secondary foaming and vulcanization molding, preheating the oven to 160 ℃, and then putting the molding rubber into the oven to heat for 15min to obtain porous slow-resilience rubber and plastic;
6) and (5) cutting the rubber plastic material prepared in the step (5), and extruding and breaking the hole to obtain the mute shock-absorbing heat-insulating slow-resilience rubber plastic.
Example 4:
a preparation method of a mute heat-insulation slow-rebound rubber comprises the following steps:
1) firstly, putting 60 parts of low-density polypropylene, 20 parts of ethylene-octene copolymer, 15 parts of talcum powder, 2 parts of dispersant and 2 parts of paraffin into a plastic internal mixer, adding high-temperature foaming agent AC11 parts, 3 parts of calcium carbonate, 3 parts of carbon black and 1 part of zinc oxide when the internal mixing temperature is raised to 116 ℃, carrying out internal mixing for 5-10min, discharging, cooling and tabletting to prepare a film, and standing for 48h for later use;
2) pouring the rubber sheet obtained in the step (1) into an internal mixer, sequentially pouring 25 parts of natural rubber latex, 25 parts of vulcanizing agent S-802 parts, 1 parts of low-temperature foaming agent ACP, 2 parts of zinc dimethyldithiocarbamate, 0.5 part of di-o-tolylguanidine, 0.5 part of sodium silicofluoride and 1.5 parts of anti-aging agent, internally mixing to 90 ℃ for about 15min, stirring for slight foaming to obtain foamed rubber, and discharging;
3) putting the mixture into an open mill, and then mixing for 10-20min, wherein the mixing temperature is controlled at 80-95 ℃;
4) feeding the foaming material mixture obtained in the step (3) into an extruder, and extruding under the process condition that the temperature of the extruder is 80-100 ℃ to obtain molding glue;
5) foaming and forming: adopting an oven for secondary foaming and vulcanization molding, preheating the oven to 160 ℃, and then putting the molding rubber into the oven to heat for 15min to obtain porous slow-resilience rubber and plastic;
6) and (5) cutting the rubber plastic material prepared in the step (5), and extruding and breaking the hole to obtain the mute shock-absorbing heat-insulating slow-resilience rubber plastic.
Example 5:
a preparation method of a mute heat-insulation slow-rebound rubber comprises the following steps:
1) firstly, putting 60 parts of low-density polypropylene, 30 parts of ethylene-octene copolymer, 15 parts of talcum powder, 2 parts of dispersant and 2 parts of paraffin into a plastic internal mixer, adding high-temperature foaming agent AC10 parts, 3 parts of calcium carbonate, 3 parts of carbon black and 1 part of zinc oxide when the internal mixing temperature is raised to 116 ℃, discharging after internal mixing for 5-10min, cooling and instantly tabletting within 0.2s until the thickness is 60% of the discharge thickness to prepare a film, and standing for 48h for later use;
2) pouring the rubber sheet obtained in the step (1) into an internal mixer internal mixing chamber, sequentially pouring 20 parts of natural latex, 20 parts of vulcanizing agent S-802 parts, 0.9 part of low-temperature foaming agent, 2 parts of zinc dimethyldithiocarbamate, 0.5 part of di-o-tolylguanidine, 0.5 part of sodium silicofluoride and 1.5 parts of anti-aging agent, internally mixing to 90 ℃ for about 15min, stirring for slight foaming to obtain foamed rubber, and discharging;
3) putting the mixture into an open mill, and then mixing for 10-20min, wherein the mixing temperature is controlled at 80-95 ℃;
4) feeding the foaming material mixture obtained in the step (3) into an extruder, and extruding under the process condition that the temperature of the extruder is 80-100 ℃ to obtain molding glue;
5) foaming and forming: adopting an oven for secondary foaming and vulcanization molding, preheating the oven to 150 ℃, and then putting the molding rubber into the oven for heating for 10-15min to obtain porous slow-resilience rubber and plastic;
6) and (3) cutting the rubber and plastic material prepared in the step (5), and instantly extruding the cut rubber and plastic material to 60 percent, 50 percent and 40 percent of the thickness in 0.2s for three times each time to break holes, thus obtaining the mute shock-absorbing heat-insulating slow-rebound rubber and plastic. The silence of this embodiment preparation slowly kick-backs rubber and plastic resilience force 2, and the percent opening reaches 59%, does the noise test under 75 decibel environment, will, place this embodiment rubber and plastic material insulation can in 1 meter department of noise source, and the incasement noise test only has 47 decibels.
The rubber and plastic resilience force of the embodiment is compared with the resilience force of the rubber and plastic plate 30 on the market at present, the resilience force is lower than 8, the rubber and plastic plate returns slowly after being pressed, and the sound absorption and shock absorption effects are excellent.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A mute heat-insulation slow-resilience rubber and plastic is characterized by comprising the following raw materials in parts by weight: 60-80 parts of low-density polypropylene, 20-40 parts of ethylene-octene copolymer, 20-30 parts of natural latex, 2-5 parts of vulcanizing agent, 10-15 parts of filler talcum powder, 4-7 parts of reinforcing agent, 1-3.5 parts of accelerator, 0.5-1 part of activator, 2-3 parts of dispersant, 10-13 parts of foaming agent, 10760.5-1.5 parts of anti-aging agent, 0.5-3 parts of sodium silicofluoride and 2-3 parts of paraffin, wherein the foaming agent is a high-temperature foaming agent AC and a low-temperature foaming agent ACP which are mixed according to the weight part ratio of 11: 1.
2. The rubber-plastic with characteristics of sound insulation and slow rebound according to claim 1, wherein the vulcanizing agent is S-80 sulfur masterbatch.
3. The mute heat insulation slow-rebound rubber and plastic as claimed in claim 1, wherein the reinforcing agent is heavy calcium carbonate and carbon black in a weight portion ratio of 1: 1.
4. The mute heat-insulation slow-rebound rubber and plastic as claimed in claim 1, wherein the accelerator comprises zinc dimethyldithiocarbamate and di-o-tolylguanidine in a weight ratio of 4: 1.
5. The silent heat-insulating slow-rebound rubber and plastic as claimed in claim 1, wherein the activator is zinc oxide.
6. A preparation method of a mute heat-insulation slow-rebound rubber and plastic is characterized by comprising the following steps:
1) firstly, putting low-density polypropylene, ethylene-octene copolymer, talcum powder, dispersant and paraffin into a plastic internal mixer, adding high-temperature foaming agent AC, reinforcing agent and activator when the internal mixing temperature is raised to 116 ℃, carrying out internal mixing for 5-10min, then discharging, cooling and tabletting to prepare a film, and standing for 48h for later use;
2) pouring the rubber sheet obtained in the step (1) into an internal mixer, sequentially pouring natural rubber latex, a vulcanizing agent, a low-temperature foaming agent, an accelerator, sodium silicofluoride and an anti-aging agent, carrying out internal mixing for 15min when the internal mixing temperature is raised to 90 ℃, stirring for slight foaming to obtain foamed rubber, and discharging;
3) putting the mixture into an open mill, and then mixing for 10-20min, wherein the mixing temperature is controlled at 80-95 ℃;
4) feeding the foaming material mixture obtained in the step (3) into an extruder, and extruding under the process condition that the temperature of the extruder is 80-100 ℃ to obtain molding glue;
5) foaming and forming: adopting an oven for secondary foaming and vulcanization molding, preheating the oven to 150-160 ℃, putting the molding rubber into the oven for heating for 10-15min, and obtaining porous slow-resilience rubber and plastic;
6) and (5) cutting the rubber plastic material prepared in the step (5), and extruding and breaking the hole to obtain the mute shock-absorbing heat-insulating slow-resilience rubber plastic.
7. A preparation method of a mute heat-insulation slow-rebound rubber and plastic is characterized by comprising the following steps:
1) firstly, putting low-density polypropylene, ethylene-octene copolymer, talcum powder, dispersant and paraffin into a plastic internal mixer, adding high-temperature foaming agent AC, reinforcing agent and activator when the internal mixing temperature is raised to 116 ℃, discharging after internal mixing for 5-10min, cooling within 0.2s, instantly tabletting until the thickness is 60% of the discharge thickness to prepare a film, and standing for 48h for later use;
2) pouring the rubber sheet obtained in the step (1) into an internal mixer, sequentially pouring natural rubber latex, a vulcanizing agent, a low-temperature foaming agent, an accelerator, sodium silicofluoride and an anti-aging agent, carrying out internal mixing for 15min when the internal mixing temperature is raised to 90 ℃, stirring for slight foaming to obtain foamed rubber, and discharging;
3) putting the mixture into an open mill, and then mixing for 10-20min, wherein the mixing temperature is controlled at 80-95 ℃;
4) feeding the foaming material mixture obtained in the step (3) into an extruder, and extruding under the process condition that the temperature of the extruder is 80-100 ℃ to obtain molding glue;
5) foaming and forming: adopting an oven for secondary foaming and vulcanization molding, preheating the oven to 150-160 ℃, putting the molding rubber into the oven for heating for 10-15min, and obtaining porous slow-resilience rubber and plastic;
6) and (3) cutting the rubber and plastic material prepared in the step (5), and instantly extruding the cut rubber and plastic material to 60 percent, 50 percent and 40 percent of the thickness in 0.2s for three times each time to break holes, thus obtaining the mute shock-absorbing heat-insulating slow-rebound rubber and plastic.
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| CN202010062037.2A CN111087700A (en) | 2020-01-19 | 2020-01-19 | Mute heat-insulation slow-resilience rubber and plastic and preparation method thereof |
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| CN202010062037.2A CN111087700A (en) | 2020-01-19 | 2020-01-19 | Mute heat-insulation slow-resilience rubber and plastic and preparation method thereof |
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Cited By (2)
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| CN111808337A (en) * | 2020-06-16 | 2020-10-23 | 普莱斯德集团股份有限公司 | Open-cell type rubber and plastic foaming filter cotton |
| CN114015144A (en) * | 2021-12-10 | 2022-02-08 | 东莞市宏恩塑胶制品有限公司 | Memory foam material and preparation method thereof |
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| CN110272592A (en) * | 2018-03-13 | 2019-09-24 | 浙江师范大学 | A kind of high-impact, lightweight polypropylene composite materials part and moulding process |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111808337A (en) * | 2020-06-16 | 2020-10-23 | 普莱斯德集团股份有限公司 | Open-cell type rubber and plastic foaming filter cotton |
| CN114015144A (en) * | 2021-12-10 | 2022-02-08 | 东莞市宏恩塑胶制品有限公司 | Memory foam material and preparation method thereof |
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