CN111073172B - False head skin material suitable for collision test of Chinese and preparation method thereof - Google Patents
False head skin material suitable for collision test of Chinese and preparation method thereof Download PDFInfo
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- CN111073172B CN111073172B CN201911263845.9A CN201911263845A CN111073172B CN 111073172 B CN111073172 B CN 111073172B CN 201911263845 A CN201911263845 A CN 201911263845A CN 111073172 B CN111073172 B CN 111073172B
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/04—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08L27/06—Homopolymers or copolymers of vinyl chloride
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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Abstract
The invention discloses a false head skin material suitable for collision test of Chinese, which comprises the following raw materials, by mass, 37.5-40.5% of polyvinyl chloride resin, 0.1-2% of calcium carbonate, 47.5-50.5% of dioctyl terephthalate, 4-7% of epoxidized soybean oil, 0.5-3% of an antioxidant stabilizer and 3-6% of oil; preparation: weighing the raw materials according to the formula, mixing in a container, heating the mold to 185 ℃ and keeping for 20-50min, pouring the uniformly mixed raw materials into the heated mold, baking for 20-50min, and cooling to obtain the product; the skin made of the material can simulate the head skin characteristics of Chinese, has stable performance, can accurately test the collision test performance data meeting the requirements of Chinese, improves the safety protection performance of the head of the Chinese in the collision process of vehicle accidents, can be used for multiple times, and has better durability.
Description
Technical Field
The invention belongs to the technical field of automobile safety, particularly relates to manufacture of a collision test dummy, and particularly relates to a head skin material for a collision test dummy suitable for Chinese and a preparation method thereof.
Background
The collision test dummy is an experimental instrument made of special materials according to the principle of human engineering, and can be used for collision experiments of automobiles, rail transit and the like instead of human bodies, so that the damage condition of real people can be simulated. The dummy can simulate human body characteristics and can be used for multiple times, and the safety performance of vehicles and other delivery vehicles can be improved by applying dummy test.
Existing crash test dummies are mainly Hybrid III and THOR dummies, which are developed based on body size and biological characteristics in europe and america. However, the difference between the human body characteristics of China and the human body characteristics of Europe and America (for example, the difference between the size, the weight and the biological characteristics) can reflect the material performance of the collision test dummy, and further, if the head skin of the European and American dummy is adopted, the test data is possibly not in accordance with the characteristics of Chinese, so that various designs of the automobile cannot be well suitable for Chinese, and the potential safety risk is improved. The head is an important part of a human body, the safety protection performance of the head in the collision process is directly influenced by the performance of the head skin, and at present, no formula and process for manufacturing the head skin of a collision test dummy exist in China.
For example, chinese patent CN107641271A discloses a collision dummy skin and its preparation process, which is prepared from the following raw materials in parts by weight: 60-80 parts of polyvinyl chloride; 40-20 parts of thermoplastic polyurethane; 10-20 parts of an additive; the additives are a plasticizer, a heat stabilizer, a lubricant and a reinforcing phase filler; however, the head skin characteristics of Chinese people are not designed, and the characteristics of the prepared skin in toughness, ductility, elasticity and the like which are all not in accordance with the head skin characteristics of Chinese people can be reflected in practical application, so that data measured by adopting the skin material can be difficultly applied to Chinese people, and the safety protection performance of the head in the collision process is directly influenced.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide an improved false head skin material suitable for collision test of Chinese, the skin made of the material can simulate the head skin characteristics of Chinese, the performance is stable, the collision test performance data meeting the Chinese can be accurately tested, the safety protection performance of the head of the Chinese in the collision process of a vehicle accident is improved, and the false head skin material can be applied for multiple times and has better durability.
The invention also provides a preparation method of the dummy head skin material suitable for the collision test of Chinese.
In order to achieve the purpose, the invention adopts a technical scheme that:
a false head skin material suitable for collision test of Chinese people comprises polyvinyl chloride resin as raw material, calcium carbonate, dioctyl terephthalate, epoxidized soybean oil, antioxidant stabilizer and color oil;
wherein the raw materials comprise the following components in percentage by mass:
according to some preferred aspects of the present invention, in the raw materials, by mass percentage:
according to a further preferred aspect of the present invention, in the raw materials, by mass percentage:
according to a further preferred aspect of the present invention, in the raw materials, by mass percentage:
according to a preferred aspect of the ethylene of the present invention, the polyvinyl chloride resin has a paste viscosity of 2450-2550 mPa.s and a bulk density of 0.20-0.40 g/ml.
According to some preferred aspects of the present invention, the epoxidized soybean oil has an epoxy value of 6.5 to 7.0mol/100 g and an acid value of 0.2 to 0.4 KOH/(mg/g).
According to some preferred aspects of the present invention, the polyvinyl chloride resin, the calcium carbonate, the dioctyl terephthalate, and the epoxidized soybean oil are fed in a mass ratio of 1: 0.004-0.0052: 1.2-1.3: 0.13-0.15.
According to some specific and preferred aspects of the present invention, the antioxidant stabilizer is SC-72 available from ADK of Japan; the oil was purchased from Dari essence under the designation VT KK 151/286-1191.
The invention provides another technical scheme that: the preparation method of the dummy head skin material suitable for the collision test of Chinese people comprises the following steps: weighing the raw materials according to the formula, mixing in a container, heating the mold to 185 ℃ and keeping the temperature for 20-50min, pouring the uniformly mixed raw materials into the heated mold, baking for 20-50min, and cooling to prepare the fake human head skin material suitable for the collision test of Chinese.
According to some preferred aspects of the present invention, the mixed raw materials are controlled to be poured into the heated mold without generating bubbles.
According to some embodiments of the present invention, the method for controlling the bubble-free generation of the mixed raw materials poured into the heated mold comprises: slowly pouring the uniformly mixed raw materials into the heated mould, and/or after pouring the uniformly mixed raw materials into the heated mould and shaking the mould to further exhaust air bubbles.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages: according to the invention, on the basis of common skin material polyvinyl chloride resin, calcium carbonate with a specific content, dioctyl terephthalate with a specific content and epoxidized soybean oil with a specific content are innovatively adopted for compounding, and especially, the contents of polyvinyl chloride and dioctyl terephthalate are controlled within a specific range, so that the prepared head skin material conforms to the characteristics of the head skin of Chinese in the aspects of toughness, ductility, elasticity and the like, and meanwhile, the synthetic acceleration measured by a drop test also conforms to the numerical range of the head skin of Chinese, thereby being beneficial to accurately obtaining safety protection test data of the head, especially the head of the Chinese in the automobile collision process, and further being capable of adopting reasonable data to carry out specific design on transportation tools such as automobiles and the like designed for Chinese and improving the safety protection performance of the head; meanwhile, the novel anti-theft door can be used for multiple times, and the durability is better.
Detailed Description
The present invention will be described in further detail with reference to specific examples. It is to be understood that these examples are for the purpose of illustrating the general principles, essential features and advantages of the present invention, and the present invention is not limited by the following examples. The implementation conditions used in the examples can be further adjusted according to specific requirements, and the implementation conditions not indicated are generally the conditions in routine experiments. The raw materials used in the examples are all commercially available commercial products.
In the following examples, all starting materials are essentially obtained commercially or prepared by conventional methods in the art, unless otherwise specified.
Example 1
The example provides a false head skin material suitable for collision test of Chinese, which comprises the following raw materials in percentage by mass:
wherein the polyvinyl chloride resin is PVC paste resin H-24 from Kaneka of Japan, the calcium carbonate is from Shanghai Yangtze chemical industry, and the mark is GF-250; epoxidized soybean oil was purchased from ADK, Japan, and was 0-130C; the antioxidant stabilizer is purchased from ADK of Japan, and is SC-72; oil was purchased from Dari essence under the designation VT KK 151/286-1191.
The preparation method comprises the following steps: weighing the raw materials according to the formula, mixing in a container, heating the mold to 180 ℃ and keeping for 30min, slowly pouring the uniformly mixed raw materials into the heated mold, shaking the mold after pouring to discharge bubbles, baking for 30min, and cooling to prepare the fake human head skin material suitable for the collision test of Chinese.
Example 2
The example provides a false head skin material suitable for collision test of Chinese, which comprises the following raw materials in percentage by mass:
example 3
The example provides a false head skin material suitable for collision test of Chinese, which comprises the following raw materials in percentage by mass:
comparative example 1
Basically, the method is the same as the method of the embodiment 1, and the method only differs from the method in that: the dioctyl terephthalate was replaced with the commonly used dioctyl phthalate.
Comparative example 2
Basically, the method is the same as the method of the embodiment 1, and the method only differs from the method in that: the content of the polyvinyl chloride resin was adjusted to 30.99%, and the content of dioctyl terephthalate was adjusted to 57.12%.
Comparative example 3
Basically, the method is the same as the method of the embodiment 1, and the method only differs from the method in that: the content of the polyvinyl chloride resin was adjusted to 46.99%, and the content of dioctyl terephthalate was adjusted to 41.12%.
Performance testing
The skin materials obtained in examples 1 to 3 and comparative examples 1 to 3 were subjected to the following performance tests, and the specific results are shown in Table 1.
Scalp test methods: reference is made to the relevant test standard used by the European and American sign dummies, the test method in Subpart B in the U.S. Federal regulations 49CFR PART 572.
The skull equipped with the scalp of the collision test dummy is hung on a head falling device, the forehead position is vertically away from the surface 376 +/-1 mm of the falling collision, the nasal tip position is vertically away from the forehead position by 12.7mm, and the left-right balance of the head is kept as far as possible. The surface of the falling collision is a smooth and clean horizontal metal surface, the material is a chromium-plated steel plate, and the degree of finish is 2-0.2 mu m. After the skull with the scalp is hung and placed at the position, a drop test is carried out, and the relevant collision performance of the scalp and the injury value of the head are reflected by data acquired by the triaxial accelerometer arranged in the skull.
TABLE 1
The above-mentioned embodiments are merely illustrative of the technical idea and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered in the scope of the present invention.
Claims (8)
1. A false head skin material suitable for collision test of Chinese people is prepared from polyvinyl chloride resin, calcium carbonate, dioctyl terephthalate, epoxidized soybean oil, antioxidant stabilizer and color oil;
wherein the raw materials comprise the following components in percentage by mass:
polyvinyl chloride resin 37.5-40.5%
0.1 to 2 percent of calcium carbonate
47.5 to 50.5 percent of dioctyl terephthalate
4 to 7 percent of epoxidized soybean oil
0.5-3% of antioxidant stabilizer
3-6% of oil;
the paste viscosity of the polyvinyl chloride resin is 2450-2550mPa & s, the bulk density is 0.20-0.40g/mL, the epoxy value of the epoxidized soybean oil is 6.5-7.0mol/100 g, and the acid value is 0.2-0.4 KOH/(mg/g).
2. The dummy head skin material suitable for collision tests of Chinese people according to claim 1, wherein the raw materials comprise, by mass percent:
38-40% of polyvinyl chloride resin
0.1 to 1 percent of calcium carbonate
48 to 50 percent of dioctyl terephthalate
4.5 to 6.5 percent of epoxidized soybean oil
1 to 2.5 percent of antioxidant stabilizer
Oil 3.5-5.5%.
3. The dummy head skin material suitable for collision tests of Chinese people according to claim 2, wherein the raw materials comprise, by mass percent:
38.5 to 39.5 percent of polyvinyl chloride resin
0.1 to 0.5 percent of calcium carbonate
48.5 to 49.5 percent of dioctyl terephthalate
5 to 6 percent of epoxidized soybean oil
1.2 to 2 percent of antioxidant stabilizer
Oil 4-5%.
4. The crash test dummy head skin material for Chinese according to any one of claims 1 to 3, wherein the polyvinyl chloride resin, the calcium carbonate, the dioctyl terephthalate and the epoxidized soybean oil are fed in a mass ratio of 1: 0.004 to 0.0052: 1.2 to 1.3: 0.13 to 0.15.
5. The collision test dummy head skin material for chinese according to claim 1, wherein the antioxidant stabilizer is SC-72 available from ADK of japan.
6. The collision test dummy head skin material for chinese according to claim 1, characterized in that the oil color is purchased from dais refinement, designation VT KK 151/286-1191.
7. A method for preparing a dummy head skin material for collision test of Chinese people according to any one of claims 1 to 6, which comprises the following steps: weighing the raw materials according to the formula, mixing in a container, heating the mold to 185 ℃ and keeping the temperature for 20-50min, pouring the uniformly mixed raw materials into the heated mold, baking for 20-50min, and cooling to prepare the fake human head skin material suitable for the collision test of Chinese.
8. The method for preparing the dummy head skin material for the collision test of Chinese according to claim 7, wherein the mixed raw materials are controlled to be poured into the heated mold without generating bubbles.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911263845.9A CN111073172B (en) | 2019-12-11 | 2019-12-11 | False head skin material suitable for collision test of Chinese and preparation method thereof |
| CN202111068290.XA CN113861583B (en) | 2019-12-11 | 2019-12-11 | Preparation method of dummy head skin material suitable for Chinese collision test |
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| CN201911263845.9A CN111073172B (en) | 2019-12-11 | 2019-12-11 | False head skin material suitable for collision test of Chinese and preparation method thereof |
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| CN202111068290.XA Division CN113861583B (en) | 2019-12-11 | 2019-12-11 | Preparation method of dummy head skin material suitable for Chinese collision test |
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| CN111073172B true CN111073172B (en) | 2021-10-12 |
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| CN201911263845.9A Active CN111073172B (en) | 2019-12-11 | 2019-12-11 | False head skin material suitable for collision test of Chinese and preparation method thereof |
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| CN113999436B (en) * | 2021-11-05 | 2023-03-31 | 中汽研汽车检验中心（天津）有限公司 | Rubber scalp for collision dummy and manufacturing method |
| CN114441186B (en) * | 2021-12-24 | 2023-01-31 | 中国汽车技术研究中心有限公司 | Method for manufacturing limb skin layer of dummy for automobile crash test |
| CN114479311B (en) * | 2021-12-24 | 2023-05-26 | 清华大学苏州汽车研究院（相城） | Rib damping material for Chinese human body sign dummy and application thereof |
| CN114369319A (en) * | 2022-01-14 | 2022-04-19 | 北京可维汇众科技发展有限公司 | Dummy skin and preparation method thereof |
| CN115071036B (en) * | 2022-07-19 | 2022-11-25 | 中国汽车技术研究中心有限公司 | Method, device and storage medium for preprocessing raw materials of skin muscle layer of collision dummy |
| CN118528472A (en) * | 2024-07-24 | 2024-08-23 | 中国汽车技术研究中心有限公司 | Device and method for pre-treatment of raw material perfusion of skin layer of automobile collision dummy |
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| JPH06311902A (en) * | 1993-04-28 | 1994-11-08 | Achilles Corp | Soft polyvinyl chloride resin composition for injection molding type shoe sole and injection molding method of shoe sole |
| TW442392B (en) * | 1997-12-22 | 2001-06-23 | Nanya Plastics Corp | Method for producing high performance thermoplastic polyurethare artificial leathers |
| CN103102615A (en) * | 2011-11-14 | 2013-05-15 | 张家港市南丰助剂有限公司 | Method for preparing human body bedsore skin simulation model |
| CN102653618A (en) * | 2012-04-12 | 2012-09-05 | 青岛海尔新材料研发有限公司 | Environment-friendly cold-resistant polyvinyl chloride cable material and preparation method thereof |
| CN104746357B (en) * | 2015-03-31 | 2017-03-15 | 无锡市曼优丽新型复合材料有限公司 | A kind of preparation method of the aqueous artificial leather of environmental protection polyvinyl chloride |
| CN106136396A (en) * | 2016-08-05 | 2016-11-23 | 青岛玖美发制品有限公司 | A kind of emulation scalp wig |
| CN107641271A (en) * | 2017-10-26 | 2018-01-30 | 天津瑷睿赛福科技有限公司 | A kind of crash dummy skin and preparation technology |
| CN107805355A (en) * | 2017-11-02 | 2018-03-16 | 马萍 | A kind of polyvinyl chloride bag book film without adjacent benzene and preparation method thereof |
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| CN113861583A (en) | 2021-12-31 |
| CN111073172A (en) | 2020-04-28 |
| CN113861583B (en) | 2023-08-25 |
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Effective date of registration: 20220704 Address after: 215134 Zhongqi Zero building, aigehao Road, Xiangcheng District, Suzhou City, Jiangsu Province Patentee after: SUZHOU AUTOMOTIVE RESEARCH INSTITUTE TSINGHUA University (XIANGCHENG) Patentee after: Tsinghua University Address before: 215134 Zhongqi Zero building, aigehao Road, Xiangcheng District, Suzhou City, Jiangsu Province Patentee before: SUZHOU AUTOMOTIVE RESEARCH INSTITUTE TSINGHUA University (XIANGCHENG) Patentee before: Suzhou Qingtai Automobile Safety Technology Co., Ltd |