JPS5735746A - Determinating method for degree of cross-linking or degree of vulcanization of rubber and plastic material - Google Patents

Determinating method for degree of cross-linking or degree of vulcanization of rubber and plastic material

Info

Publication number
JPS5735746A
JPS5735746A JP11132480A JP11132480A JPS5735746A JP S5735746 A JPS5735746 A JP S5735746A JP 11132480 A JP11132480 A JP 11132480A JP 11132480 A JP11132480 A JP 11132480A JP S5735746 A JPS5735746 A JP S5735746A
Authority
JP
Japan
Prior art keywords
degree
deformation
sample
time
linking
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP11132480A
Other languages
Japanese (ja)
Inventor
Yukihiko Namiki
Takeshi Sekiguchi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SWCC Corp
Original Assignee
Showa Electric Wire and Cable Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Showa Electric Wire and Cable Co filed Critical Showa Electric Wire and Cable Co
Priority to JP11132480A priority Critical patent/JPS5735746A/en
Publication of JPS5735746A publication Critical patent/JPS5735746A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/44—Resins; Plastics; Rubber; Leather
    • G01N33/445—Rubber

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials Using Thermal Means (AREA)

Abstract

PURPOSE:To safely and easily dermine the degree of cross-linking or valcanization of rubber or plastic material in a short time, by measuring the deformation amount of sample by putting the sample in a heat machine analysis-measuring apparatus and repeating loading and unloading for a constant time. CONSTITUTION:A small piece is cut from rubber, plastic products such as an insulating material of electric wire, cable, sheet or film, and this sample is set on measuring apparatus of heat machine analysis. Next, when the sample is a crystalline polymer, the polymer is heated and is maintained at a higher temp. than a crystal disappearing temperature and a crystalline part is completely molten. Then, a load of constant weight is given for a given time so that about 0.1- 3.0% deformation is generated. The load is removed after giving the weight for a certain time and left as it is for a certain time. The amount of deformation is recorded as a function of time by repeating this operation. The amt. of the restored deformation (a) and the amt. of the deformation (b) are found from the record chart, and a rate of deformations or a rate of creep deformation is calculated therefrom. The degree of bridge formation or valcanization is decided from these values and a calibration curve which has been preliminaryly found with regard to the degree of cross-linking or degree of vulcanization.
JP11132480A 1980-08-13 1980-08-13 Determinating method for degree of cross-linking or degree of vulcanization of rubber and plastic material Pending JPS5735746A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11132480A JPS5735746A (en) 1980-08-13 1980-08-13 Determinating method for degree of cross-linking or degree of vulcanization of rubber and plastic material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11132480A JPS5735746A (en) 1980-08-13 1980-08-13 Determinating method for degree of cross-linking or degree of vulcanization of rubber and plastic material

Publications (1)

Publication Number Publication Date
JPS5735746A true JPS5735746A (en) 1982-02-26

Family

ID=14558319

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11132480A Pending JPS5735746A (en) 1980-08-13 1980-08-13 Determinating method for degree of cross-linking or degree of vulcanization of rubber and plastic material

Country Status (1)

Country Link
JP (1) JPS5735746A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6342449A (en) * 1986-08-09 1988-02-23 Nippon Paint Co Ltd Measuring instrument for viscoelastic behavior characteristic
EP0505747A2 (en) * 1991-03-23 1992-09-30 Parker-Prädifa GmbH Method and apparatus for the determination of the state of cure of elastomers

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6342449A (en) * 1986-08-09 1988-02-23 Nippon Paint Co Ltd Measuring instrument for viscoelastic behavior characteristic
EP0505747A2 (en) * 1991-03-23 1992-09-30 Parker-Prädifa GmbH Method and apparatus for the determination of the state of cure of elastomers
EP0505747A3 (en) * 1991-03-23 1994-11-17 Parker Praedifa Gmbh Method and apparatus for the determination of the state of cure of elastomers

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